ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2005 CHANNEL 1 2 3 4 DIGITAL WIRELESS SPEAKER TRANSMITTER XW-HTP550 RRV3090 DIGITAL WIRELESS SPEAKER SYSTEM XW-HTP550 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Model Type Power Requirement Remarks XW-HTP550 KUCXJ AC120V ÷ Ask user to bring the Transmitter and Wireless Speaker pair set together when servicing. SX-315/KUCXCN HTP-4600/KUCXCN RRV3071 S-FCRW4500/XTW/UC XW-HTP550/KUCXJ RRV3112 AUDIO MULTI-CHANNEL RECEIVER HOME THEATER SYSTEM SPEAKER SYSTEM DIGITAL WIRELESS SPEAKER SYSTEM This manual Component System Service Manual Remarks RRV3090 SX-315/KUCXCN HTP-4550DVR/KUCXCN RRV3071 S-FCW4550/XTW/UC XW-HTP550/KUCXJ RRV3118 AUDIO MULTI-CHANNEL RECEIVER HOME THEATER SYSTEM SPEAKER SYSTEM DIGITAL WIRELESS SPEAKER SYSTEM This manual Component System Service Manual Remarks RRV3090 DVR-231-AV/KUXV/CA DVD RECORDER RRV3124 For details, refer to "Important Check Points for Good Servicing". T-ZZV FEB. 2005 printed in Japan www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 2 1 2 3 4 1 2 3 4 C D F A B E SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 – Proposition 65 NOTICE Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de remplacement doivent avoir la même désignation. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURN- ING THE APPLIANCE TO THE CUSTOMER. 2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER. (FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA. Device under test Leakage current tester Earth ground Reading should not be above 0.5 mA Also test with plug reversed (Using AC adapter plug as required) Test all exposed metal surfaces AC Leakage Test www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 3 5 6 7 8 5 6 7 8 C D F A B E [Important Check Points for Good Servicing] In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures. 1. Product safety Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual. 1 Use specified parts for repair. Use genuine parts. Be sure to use important parts for safety. 2 Do not perform modifications without proper instructions. Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise. 3 Make sure the soldering of repaired locations is properly performed. When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example) 4 Make sure the screws are tightly fastened. Please be sure that all screws are fastened, and that there are no loose screws. 5 Make sure each connectors are correctly inserted. Please be sure that all connectors are inserted, and that there are no imperfect insertion. 6 Make sure the wiring cables are set to their original state. Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc. 7 Make sure screws and soldering scraps do not remain inside the product. Please check that neither solder debris nor screws remain inside the product. 8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord. Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one. 9 There should be no spark traces or similar marks on the power plug. When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary. 0 Safe environment should be secured during servicing. When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely. 2. Adjustments To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual. 4. Cleaning For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances. 3. Lubricants, Glues, and Replacement parts Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied. 5. Shipping mode and Shipping screws To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 4 1 2 3 4 1 2 3 4 C D F A B E CONTENTS SAFETY INFORMATION..................................................................................................................................... 2 1. SPECIFICATIONS ............................................................................................................................................ 5 2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6 2.1 PACKING ................................................................................................................................................... 6 2.2 TRANSMITTER SECTION......................................................................................................................... 8 2.3 WIRELESS SPEAKER SECTION............................................................................................................ 10 3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM ........................................................................................... 12 3.1 OVERALL BLOCK DIAGRAM.................................................................................................................. 12 3.2 OVERALL WIRING DIAGRAM................................................................................................................. 14 3.3 MAIN, LED, PRIMARY and BINDER ASSYS........................................................................................... 16 3.4 TX ASSY .................................................................................................................................................. 18 3.5 RX ASSY ................................................................................................................................................. 20 4. PCB CONNECTION DIAGRAM ..................................................................................................................... 22 4.1 MAIN and BINDER ASSYS ..................................................................................................................... 23 4.2 PRIMARY ASSY ...................................................................................................................................... 25 4.3 TX ASSY .................................................................................................................................................. 27 4.4 LED and RX ASSYS ................................................................................................................................ 29 5. PCB PARTS LIST ........................................................................................................................................... 31 6. ADJUSTMENT ............................................................................................................................................... 32 7. GENERAL INFORMATION............................................................................................................................. 33 7.1 DIAGNOSIS ............................................................................................................................................. 33 7.1.1 DIAGNOSIS NOTE ............................................................................................................................... 33 7.1.2 TROUBLE SHOOTING ......................................................................................................................... 35 7.1.3 DIAGNOSIS OF TX and RX MODULES............................................................................................... 38 7.1.4 DIAGNOSIS OF THE AMPLIFIER SECTION ....................................................................................... 39 7.1.5 PROTECTION CIRCUIT ....................................................................................................................... 40 7.1.6 DISASSEMBLY ..................................................................................................................................... 41 7.2 IC ............................................................................................................................................................. 43 8. PANEL FACILITIES ........................................................................................................................................ 45 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 5 5 6 7 8 5 6 7 8 C D F A B E 1. SPECIFICATIONS • RCA stereo cord (XDE3045) • Power cord (ADG7021) • AC adaptor (AWR7006) • Operating instructions • Warranty card General Digital Wireless Speaker System (Transmitter/Wireless speaker) Transmitter AC adaptor Power requirements . . . . . . . . AC 120V, 60Hz Power consumption . . . . . . . . . . . . . . . . . . 8W Rated output . . . . . . . . . . . . . . . . . 12V/300mA Power consumption (without AC adaptor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA jack Weight . . . . . . . . . . . . . . . . . . . . . . . 0.3 kg / 11 oz. Dimensions . . . . . . . 166(W) x 56(H) x 112(D) mm 69/16(W) x 23/16(H) x 47/16(D)in. Wireless speaker Power requirements . . . . . . . . . . . . AC 120V, 60Hz Power consumption . . . . . . . . . . . . . . . . . . . . 24W Amplifier characteristics Maximum power output . . . . . . . . . . . . . . . 10W/ch RMS (1kHz, THD10%, 4Ω) Continuous power output . . . . . . . . . . . . . . . 7.5W/ch (120Hz–20kHz, 1.0%, 4Ω) Music power output . . . . . . . . . . . . . . . . . . 18W/ch (DIN MUSIC, 10%, 4Ω) Speaker unit. . . . . . . . . . . . . . . 7cm cone type x 2 Weight . . . . . . . . . . . . . . . . . . . 2.9 kg / 6 lbs 6 oz Dimensions . . . . . . . . . . . . . . 461.5(W) x 176.5(H) x 95(D) mm 18 3/16(W) x 615/16(H) x 33/4(D)in. Accessoriess AC adaptor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 RCA stereo cord . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . . 1 Power cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Warranty card . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Operating instructions Note • The specifications and design of this product are subject to change without notice, due to improvement. * Measured pursuant to the Federal Trade Commission’s Trade Regulation rule on Power Output Claims for Amplifiers. Continuous average power output of 7.5 watts* per channel, min., at 4 ohms, from 120Hz to 20,000 Hz with no more than 1.0 % harmonic distortion. Accessories www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 6 1 2 3 4 1 2 3 4 C D F A B E 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screws adjacent to mark on product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) NOTES: 2 9 10 8 7 4 5 10 11 6 Transmitter 7 3 1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 7 5 6 7 8 5 6 7 8 C D F A B E PACKING parts List Mark No. Description Part No. > 1 Power Cord ADG7021 > 2 AC Adaptor AWR7006 3 RCA Stereo Cord XDE3045 4 Operating Instructions ARE7353 (English, French) NSP 5 Warranty Card ARY7045 NSP 6 Literature Bag AHG1180 7 Polyethylene Bag VHL1051 8 Packing Sheet AHG7015 9 Accessory Box NW AHB7104 10 Pad (L/R) AHA7440 11 Packing Case AHD8338 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 8 1 2 3 4 1 2 3 4 C D F A B E 2.2 TRANSMITTER SECTION 3 13 2 9 8 7 7 12 1 11 11 6 11 10 11 11 11 5 4 G E www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 9 5 6 7 8 5 6 7 8 C D F A B E TRANSMITTER SECTION parts List Mark No. Description Part No. 1 TX Assy AWU8260 2 TX Module AXF7015 3 Top Panel AAK8283 4 CS Lens AAK8133 5 CS Button T AAD7729 6 Chassis T ANA7157 7 Leg AEB7090 NSP 8 PCB Spacer(3x6) AEC7156 9 PCB Spacer AEC7546 NSP 10 Name Label T (KU) AAL7389 11 TORX Screw* ABA7111 12 Screw with Washer ABA7124 NSP 13 Getter KU AAX8066 * Use TORX driver GGK1028 or GGK1071. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 10 1 2 3 4 1 2 3 4 C D F A B E 2.3 WIRELESS SPEAKER SECTION A A C D D C B B CONTACT SIDE NON-CONTACT SIDE 6 1 3 8 2 9 7 4 5 24 33 33 33 35 36 36 36 36 36 36 36 35 33 33 33 30 35 28 16 27 22 16 26 34 33 13 33 31 29 18 37 10 13 33 33 14 12 11 11 15 23 20 21 34 19 F H D A C B Lubricating Oil GYA-009 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 11 5 6 7 8 5 6 7 8 C D F A B E WIRELESS SPEAKER SECTION parts List Mark No. Description Part No. 1 MAIN Assy AWU8261 2 LED Assy AWU8263 3 PRIMARY Assy AWU8266 4 BINDER Assy AWU8264 5 RX Assy AWU8262 6 RX Module AXF7016 > 7 Power Transformer ATS7388 > 8 Fuse (FU1 : 1.25A) REK1108 9 5P FFC Cable (J2) ADD7505 10 4P Cable Assy (J1) ADX7470 11 Speaker B70AC50-53C 12 Chassis ANA7176 13 FET Bracket A ANG7432 14 Heat Sink ANH7178 15 Spring K ABH7239 16 Rubber Leg AEB7353 17 • • • • • • • 18 Mini Clamp AEC7373 19 PCB Spacer AEC7546 20 Baffle L AMD7015 21 Baffle R AMD7016 22 Operation Panel AAK8260 23 PWR Button Assy AXG7245 24 Grille Assy AXG7254 25 Name Plate 36 AAM7013 26 Rear Case Assy AXG7255 27 Cover AAK8282 NSP 28 Angle B NSP 29 Angle A NSP 30 Name Label (KU) AAL7388 31 ICP Label XAX3121 32 • • • • • • • 33 Screw BBZ30P080FNI 34 Screw BBZ40P060FTC 35 Screw BPZ30P080FTC 36 Screw BPZ40P100FNI 37 Lubricating Oil GYA-009 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 12 1 2 3 4 1 2 3 4 C D F A B E 3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM 3.1 OVERALL BLOCK DIAGRAM E TX ASSY B LED ASSY F RX ASSY H RX MODULE TRANSMITTER SECTION RECEIVER SECTION 1 2 JA8202 ALC L R Analog Audio INPUT DC IN 12V JA8001 VD+5 VA+5 IC8051 NJM2374AM 5V REG. IC8101 NJM12904M V+5RF 3.3V REG. 3.3V REG. 2.8V REG. POWER ID Learn ID Learn TUNED Ch.1 Ch.2 Ch.3 Ch.4 Q8501-Q8504 Ch. select CN8203 (12P) CN5901 (5P) CN5902 (5P) V+5RF GNDD LEDP LEDTUN2 LEDTUN1 GNDD V+5RF ROUT LOUT 2 12 10 1 7 8 6 2 12 10 1 7 8 6 1 2 3 4 1 2 3 4 L Ch EEPROM R Ch VD+9 ANT2 BBIC RF IC + PA ID Learn ID State Sync V+5RF CN8204 (12P) 8 12 11 V+9 V+9 LOUT ROUT 6 5 5 D8501-D8504 3 1 5 7 IC8003 REG 5V NJM78M05FA 3 1 DAC www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 13 5 6 7 8 5 6 7 8 C D F A B E G TX MODULE C PRIMARY ASSY A MAIN ASSY POWER Supply 9 ANT1 +5V 8 7 5 6 11 12 9 8 7 5 6 1 2 1 2 11 12 CN8201 (12P) Ch4 Ch3 Ch2 Ch1 Ch Ch4 Ch3 Ch2 Ch1 Ch CN3701 (12P) 5 1 2 7 LIN RIN V+5RF V+5RF V+9RF VA+9 Y0 X0 Y (Rch) X (Lch) IC3301 BA4558 OP AMP 5 3 8 4 1 Lch Rch 7 IC3302 LA4663 Power IC SP PROTECT Q3511 Q3451 Q3452 Q3454 Q3453 Q3455 4 5 6 9 AN1 CN2 CN3401 (5P) L IN VCC2 VCC1 L +OUT R +OUT Relay Control MAIN MAIN L + L - R + R- MUTE 11 L –OUT 12 R –OUT 14 +B INSIDE SPEAKER AC IN RELAY DRIVE POWER RELAY RY3301 +B VP(+B) 2 8 7 R IN GND NEUTRAL LIVE FU1 S1 T1 POWER TRANSFORMER VPRE9 1 2 2 1 2 1 CN11 2 3 4 1 2 3 4 1 D11 D12 D13 D17 VA+9 VD+9 V+9RF 5 4 1 2 3.3V REG. 3.3V REG. 2.8V REG. EEPROM BBIC RF IC + PA ADC IC15 REG 9V NJM78M09FA 3 1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 14 1 2 3 4 1 2 3 4 C D F A B E 3.2 OVERALL WIRING DIAGRAM AN1 CN2 S1 CN3401 CN11 T1 CN8201 2 1 2 1 4 1 3 2 4 1 3 2 5 3 4 1 2 12 11 8 9 6 7 10 4 5 3 2 1 B2P3-VH B5P-VH B4PS-VH AKP7200- /KUCXJ XKP3042 LIVE NEUTRAL 2 1 MAIN MAIN AC CORD ASG7024- AC POWER SW NC TO SPEAKER SL+ (R+) SR- (L-) SR+ (L+) SL- (R-) Reciever Section 12V 1ch 2ch 3ch 4ch channel 11 12 AIL AIR DC IN WIRELESS IN L R Transmitter Section GNDA Ch4 Ch3 Ch 10 9 8 7 6 Ch1 RFGND RFGND V+5RF Ch2 5 4 3 2 V+5RF 1 MAIN ASSY (AWU8261) A PRIMARY ASSY (AWU8266) C TX ASSY (AWU8260) E TX MODULE (AXF7015) G No circuit diagram www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 15 5 6 7 8 5 6 7 8 C D F A B E CN3701 CN8204 CN8203 CN5901 CN5902 12 8 9 12 10 11 8 9 12 10 11 8 9 10 11 6 4 5 7 4 5 6 7 4 5 6 7 2 1 3 1 2 3 2 1 3 1 3 2 5 4 1 4 2 5 3 53290-1210 52418-1210 AKP7200- 52045-0545 52044-0545 TUNED POWER PCB BINDER : VEF1040 NC GNDD VD+9 GNDRF NC 12 8 9 10 11 AOL AOR GNDA GNDA GNDRF GNDA ROUT LOUT V+9 V+9 GNDRF GNDD LEDTUN1 GNDD LEDP LEDTUN2 4 5 6 7 IDlearn IDstat Sync GNDRF GNDRF 1 2 3 GNDRF V+5RF V+5RF NOTES: When ordering service parts, be sure to refer to “EXPLODED VIEWS and PARTS LIST” or “PCB PARTS LIST”. The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. : The power supply is shown with the marked box. LED ASSY (AWU8263) B BINDER ASSY (AWU8264) D RX ASSY (AWU8262) F RX MODULE (AXF7016) H No circuit diagram www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 16 1 2 3 4 1 2 3 4 C D F A B E 3.3 MAIN, LED, PRIMARY and BINDER ASSYS 1 2 2 1 2 1 E C B 3 B 4 E C B 4 4 3 3 1 2 1 2 E E B C B C E E C C B 1 2 3 5 4 + - Ó Ó + - Ó Ó C3 W106 H1 AN1 H2 S1 C1 W105 KN1 W103 W104 L1 C2 W102 W101 CN2 T1 ATS7388 Q3454 R3463 C3464 C3463 D3451 D3452 RY3301 R3464 Q3455 R3456 R3405 C3402 R3406 C3406 C3405 C3401 Q3451 IC11 C16 C12 C17 C18 D19 C19 IC14 IC13 D17 IC15 CN11 IC12 C13 KN11 R17 C15 R18 D15 R15 D11 D16 R16 R11 R12 D14 D12 D13 C3512 D3453 C3462 R3459 R3513 C3511 R3514 Q3511 R3465 Q3453 R3461 R3462 R3460 R3458 D3511 R3512 R3511 C3451 R3455 D3503 R3457 Q3452 R3451 R3452 R3453 R3454 CN3401 ACG7039- AKR7001- -T STBY VNF1084- STBY STBY B2P3-VH 220/6.3 2SC4081(QR) 56k -TS 47/25 STBY ASR7019 GND VPRE9 2SD1858X(QR) 10k GNDP STBY STBY STBY STBY 2SA1576A STBY STBY 2.5A AEK7049- -F AEK7049- -F 2200/25 GNDRF GNDD STBY 1/50 STBY 100/25 -TS -TS 2.5A AEK7047- -F AEK7047- -F 7A 7A S1WB(A)60SD VPRE9 NJM78M09FA V+9RF VD+9 GNDP B4PS-VH 6800/25 STBY VA+9 VNF1084- 330 10/50 330 330 D3SBA20(B) 1 1k 1k +B GNDD UDZS9R1(B) 10k 220/6.3 10k 56k 47/25 1/50 56k 2SC4081(QR) GNDD 220 2SC4081 220 220 3.9k 15k 390k STBY VREF5 VD+9 NP 100/10 4.7k +B 10k 2SA1576A B5P-VH 4.7k 4.7k 4.7k 4.7k /KUCXJ CAUTION XKP3042 REPLACE WITH SAME TYPE AND RATINGS OF FUSE. FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, 0.01u FU1 FU1 STBY LIVE NEUTRAL ASG7024- MFD. BY LITTELFUSE INC. IC12 AND IC13, NO.49102.5 FOR IC11 AND IC14, FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE NO.491007 FOR CAUTION AC CORD MAIN MAIN PCB BINDER : VEF1040 -TS (1/2) CHASSIS (QR) SP PROTECT -TRB CHASSIS GND +B -TS -TS -TS (QR) POWER_ON MUTE (QR) 6.8 V SL+ (R+) NC SL- (R-) TO SPEAKER SR+ (L+) SR- (L-) REK1108 1.25A 125V MAIN ASSY (AWU8261) A BINDER ASSY (AWU8264) D PRIMARY ASSY (AWU8266) C A C D www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 17 5 6 7 8 5 6 7 8 C D F A B E + - + - 2 5 3 4 1 5 6 7 8 4 1 3 8 4 2 B B E C B B E C 1 3 2 E B B C 1 2 E C 12 11 10 5 8 9 6 7 3 2 1 4 E C C E 11 14 12 13 5 10 6 7 8 4 9 2 3 1 G S D D5902 CN5902 D5901 D3371 R3996 C3387 C3386 C3385 IC3301 R3995 C3396 C3392 C3395 C3391 R3382 R3380 C3382 R3379 C3381 R3381 C3384 C3383 R3392 R3997 IC3301 C3320 R3308 C3305 R3304 Q3303 Q3302 Q3301 R3391 C3319 R3307 R3303 R3327 C3314 C3315 R3321 Q3307 R3322 D3303 R3323 R3325 W169 Q3306 Q3305 C3307 R3399 C3316 C3318 R3326 C3317 R3311 R3314 D3304 Q3304 C3306 C3354 C3353 C3352 W131 R3312 R3315 C3311 C3310 R3313 C3351 C3308 C3378 C3374 R3376 R3374 C3372 W161 R3378 C3376 R3372 R3377 C3375 R3371 W220 W160 C3701 C3377 R3375 R3373 C3373 C3302 C3371 W177 R3318 CN3701 D3372 R3396 R3394 R3320 R3393 C3304 C3303 R3319 R3395 C3301 R3352 R3354 R3356 R3317 R3358 C3356 C3358 C3360 C3355 C3357 C3359 C3362 C3361 C3309 R3310 RY3301 C3312 C3313 IC3302 1SS355 52044-0545 SLR-343MC SLR-343MC GNDA STBY 470/6.3 0.01 UDZS4R7(B) STBY BA4558F -TS 820 VREF STBY STBY 0.01 STBY 4.7k STBY 0.01 4.7k -TS 2.2/50 2.2/50 VA+9 1k 10 BA4558F 2200p -TS STBY STBY STBY STBY STBY STBY -TS 1k 2200p STBY 820 STBY DTC114YK GNDP UDZS4R7(B) 10k 10/50 STBY STBY 10k STBY GNDP 0 0.01 STBY 100/25 STBY GNDRF GNDD STBY 6800p 4.7k 5.6k 10/50 GNDA VD+9 10k 22k 0.022 10k 22k 0.022 100k GNDRF 100k STBY STBY 4.7k 5.6k 6800p 6.8k 0.47/50 10/50 -TS 1k 53290-1210 STBY V+9RF 1.8k STBY 1.8k 2200p 2200p GNDA STBY 6.8k 0.47/50 -TS 1k 2.2 2.2 2.2 0.22 0.22 0.22 0.22 2.2 0.22 0.22 0.22 0.22 STBY GNDP GNDP STBY +B +B ASR7019 VP -TS 10/50 -TS 47/25 LA4663 RS1/16S***J-T AL :CEAL***M**-TS ALL RESISTORS ARE IN Ω NP :CEANP***M**-T OTHER:CEAT***M## CKSRYB ALL CAPACITORS ARE IN µ F NOTES UNLESS OTHERWISE SPECIFIED TO RX ASSY LEDTUN1 LEDTUN2 LEDP GNDD (NPQ) TUNED POWER GNDD LED ASSY (NPQ) PCB BINDER : VEF1040 × 1 Rch Lch VREF STBY STBY STBY -TS (2/2) AL-TS GNDD NC NC (2/2) -TS LOUT GNDA VD+9 TO RX ASSY ROUT GNDRF STBY GNDRF V+9 V+9 GNDRF (1/2) -TS L in R in SL+ (R+) SL- (R-) 6.8 V SR- (L-) SR+ (L+) GNDP R- OUT R+ OUT L- OUT STANDBY MUTE GNDP VCC2 VCC1 GNDA R IN L IN L+ OUT RF LED ASSY (AWU8263) B A B CN8204 F CN5901 F www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 18 1 2 3 4 1 2 3 4 C D F A B E 3.4 TX ASSY + - - + 3 2 1 1 3 2 5 4 7 6 8 1 8 2 3 4 C8051 D8051 R8057 C8055 C8054 C8053 C8058 D8003 R8055 R8056 C8052 R8053 R8054 R8051 R8052 IC8051 JA8001 C8056 D8002 C8009 D8001 C8011 W226 C8007 C8006 W210 L8202 R8206 R8202 C8202 C8204 JA8202 R8205 C8203 C8201 R8058 W223 L8051 C8001 C8002 C8061 C8063 C8062 C8064 IC8052 D8104 IC8101 C8111 C8113 W181 D8102 R8102 C8104 C8206 R8204 R8203 D8103 C8103 R8101 R8103 R8104 R8106 R8105 L8201 R8201 C8205 D8101 IC8101 100/25 470p RB160L-40-TRB 1.2k GNDRF 470/25-T STBY STBY 2.2 2.2 2.2 2.2 2.2 2.2 100/10 DC/DC Converter GNDRF NJM2374AM-TFB AKN7038- YB STBY YB STBY STBY 1SR154-400-TRB YB 0.01 V+12 GND STBY STBY STBY STBY 330 220p CH STBY 220p 330 CH CH 470uH DTL1122- 3.6k STBY YB GNDRF 330/25 YB STBY STBY STBY STBY STBY BA05FP-TLB GNDA GNDA VD+5 VA+5 V+5RF STBY 0.01 YB 47k 10/50 220p GNDA 47k CH VREF 220p CH 47k 10/50 GNDA 47k 47p CH 22k 22k 22k 22k 47p PKB1034- STBY CH OUT IN CKSRYB CH :CCSRCH CEAT***M##-TS NOTES ALL CAPACITORS ARE IN µ F UNLESS OTHERWISE SPECIFIED 1/16W(CHIP) ALL RESISTORS ARE IN Ω 2SC4081(QR) Q8501– Q8504: 5 7 6 8 4 3 2 1 DC IN STBY CHASSIS STBY RIN LIN -T STBY NJM12904M-TBB (2/2) STBY ALC RB751V-40-TRB D8101– D8104: (1/2) NJM12904M-TBB TX ASSY (AWU8260) E Ewww. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 19 5 6 7 8 5 6 7 8 C D F A B E 3 2 3 1 2 3 1 2 1 3 2 1 12 11 8 9 10 5 6 7 2 3 4 1 Q8501 R8505 Q8502 Q8503 R8506 R8507 Q8504 R8508 D8501 R8501 D8502 R8502 D8503 R8510 R8511 R8512 R8503 D8504 R8504 R8001 C8008 D8004 R8002 R8210 R8108 R8208 C8102 R8207 R8209 C8010 C8901 S8901 C8021 C8025 C8024 C8023 C8022 CN8201 R8107 C8101 STBY STBY STBY GNDD STBY VSG1024- -T GNDD 1k 1k 330 270 STBY VD+5 1k SLR-343MC(NPQ)-TS SLR-343MC(NPQ)-TS SLR-343MC(NPQ)-TS SLR-343MC(NPQ)-TS 1k GNDA 820 470/6.3 VA+5 UDZS2R0(B)-TRB VREF 0 VA+5 8.2k GNDA 10/50 STBY STBY 10k 10k GNDRF 8.2k 10/50 0.01 YB GNDA YB YB YB YB YB STBY 1000p STBY 1000p 1000p 1000p V+5RF AKP7200- 12 11 8 9 10 5 6 7 2 3 4 1 Ch.1 Ch.2 Ch.3 Ch.4 D8501– D8504: VREF Ch.select AIL AIR GNDA Ch Ch4 Ch2 Ch3 Ch1 V+5RF RFGND RFGND V+5RF SWITCHES S8901 : Ch. Select E TX MODULE(AXF7015) G www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 20 1 2 3 4 1 2 3 4 C D F A B E 3.5 RX ASSY 1 2 5 3 4 1 2 3 4 5 6 7 9 8 10 E B C 11 12 1 3 2 CN5901 R5902 R5906 R5901 R5903 CN8204 W193 W195 W224 C8016 W228 R5908 Q5901 R5907 R5904 R5905 KN3 KN2 W214 R8216 R8215 C8013 C8014 D8006 C8026 W225 D8005 IC8003 52045-0545 1.2k 1.2k 1.2k 52418-1210 GNDA GNDD VD+9 STBY GNDD GNDD 10k 2SC4081 1k GNDS STBY GNDS STBY 1.2k 1.2k 1.2k VD+9 GNDRF YB 1000p GNDRF 10/50 GNDRF 22/50 STBY 100k 100k STBY V+9 VD+9 NJM78M05FA V+5RF OUT IN CKSRYB CH :CCSRCH CEAT***M##-TS NOTES ALL CAPACITORS ARE IN µ F UNLESS OTHERWISE SPECIFIED ALL RESISTORS ARE IN Ω 1/16W(CHIP) TO LED ASSY GNDD LEDTUN1 LEDTUN2 LEDP GNDD FFC:ADD7505 NC VD+9 GNDD NC STBY STBY TO MAIN ASSY ROUT GNDRF GNDA V+9 GNDRF GNDRF LOUT (QR) STBY V+9 V+5 RX ASSY (AWU8262) F F CN3701 A CN5902 B www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 21 5 6 7 8 5 6 7 8 C D F A B E E B C 12 11 10 8 9 7 4 5 6 2 1 3 C9004 C9003 C9001 C9002 C8902 S8902 C8213 C8214 R8214 C8212 R8213 C8211 R8902 Q8901 D8901 R8901 R8903 R8904 R8905 C8017 C8015 CN8203 GNDD GNDS STBY STBY STBY STBY GNDRF VSG1024- -T GNDD 0.01 STBY 10/50 STBY STBY STBY 10/50 10k 2SC4081 SLR-343MC-TS 1.2k 1.2k 1k 1.2k VD+9 STBY STBY GNDRF V+5RF AKP7200- 12 11 10 8 9 7 4 5 6 2 1 3 ID Learn (QR) (NPQ) GNDA AOR AOL GNDA IDstat IDlearn GNDRF GNDRF Sync V+5RF V+5RF GNDRF F SWITCHES S8902 : ID Learn RX MODULE(AXF7016) H www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 22 1 2 3 4 1 2 3 4 C D F A B E 4. PCB CONNECTION DIAGRAM NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below. 3. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 4. View point of PCB diagrams. Symbol In PCB Diagrams Symbol In Schematic Diagrams Part Name B C E D D G G S S B C E B C E D G S B C E B C E B C E Transistor Transistor with resistor Field effect transistor Resistor array 3-terminal regulator Capacitor Connector P.C.Board Chip Part SIDE A SIDE B www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 23 5 6 7 8 5 6 7 8 C D F A B E 4.1 MAIN and BINDER ASSYS 12 1 4 3 2 1 14 1 4 3 2 1 4 1 4 3 1 NP 4 1 ICT FC 5 1 R C3385 C3372 C3387 CN3701 C3371 C3305 C3301 C3310 C3302 C3306 C3307 C3451 C3511 C3512 C3383 C3384 C3462 C15 C3464 C13 KN11 IC13 IC12 D11 IC3302 IC14 C16 IC15 C19 C3463 C3312 RY3301 D19 CN11 IC11 C12 IC16 C10 C11 C3317 Q3455 W133 W136 W132 W158 W167 W166 W124 W155 W141 W165 W125 W134 W135 W199 W131 W154 W123 W139 W126 W170 W122 W138 W140 W128 W127 W121 W152 W159 W171 W160 W129 W137 W148 W153 W144 W145 W146 W198 CN3401 W207 W156 W130 W213 W161 C3313 W109 W107 W110 W108 W168 W169 W147 W149 W205 W206 W177 W220 Q3455 IC13 IC12 IC3302 IC14 IC15 IC11 NC PNE-1B1 GNDRF Production code GND GND V+9 V+9 LOUT GNDD VD+9 GND ROUT GND HEAT RESIST PRE-FLUX REPLACE IC LINKS AS MARKED. NC PRINTED SIDE PRINTED SIDE tolak tekan tekan BOND CAUTION IC3301 VD+9 GNDS GNDS VPRE9 GNDD GNDP VP +B VP VP VP STANDBY GNDP MUTE GNDP GNDP L+ L- R+ R- GNDRF GNDS GNDS Lin Rin GNDA GNDA VD+9 14 1 GNDD AWU8267 AWU8261 MAIN ASSY 491005 49102.5 DE CHEZ LITTELFUSE INC. COMME INDIQUE. REMPLACER LE IC LINK MFD. BY LITTELFUSE INC. ATTENTION mengikut gambarajah Susun kabel MESTI OPEN SIDE 12 1 R AWU8264 BINDER F ASSY (ANP7535-B) CN3701 CN8204 F CN11 to TRANSFORMER CN3401 to SPEAKER MAIN ASSY A BINDER ASSY D SIDE A SIDE A A D D A www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 24 1 2 3 4 1 2 3 4 C D F A B E 8 5 1 4 1 14 + - 4 1 5 1 LF R R LF Ó Ó C3701 R3373 R3375 R3372 R3381 C3377 R3377 R3378 C3376 C3375 R3379 C3391 R3376 IC3301 C3373 R3997 R3371 C3386 C3395 C3396 C3392 R3996 R3380 C3378 R3382 C3374 C3381 R3995 C3382 R3374 R3313 R3394 C3360 R3393 C3358 C3357 C3361 R3319 C3356 C3352 C3303 C3354 C3311 R3395 R3304 C3353 C3355 C3362 R3317 R3318 R3354 R3352 C3351 R3320 R3312 R3303 R3307 C3308 C3309 R3314 D3304 R3310 R3356 R3358 R3308 R3396 R3311 C3359 C3304 R3456 R3457 R3405 R3453 R3406 C3406 C3405 C3402 R3451 R3455 C3401 R3454 R3452 Q3451 Q3452 R3512 R3392 R3391 Q3511 C3320 C3319 Q3454 R3458 R3459 Q3453 R15 R12 R11 R16 R3460 R3461 D3511 R3511 R3513 R3514 D14 D12 D13 D15 D16 D3451 D3452 C17 C18 D3453 D3371 D17 C3314 R3327 Q3307 R3321 R3323 R3322 D3303 C3315 R3325 R3326 C3316 C3318 Q3304 Q3302 Q3301 Q3305 Q3303 D3503 D3372 R3462 R3315 R3399 R17 R18 R3463 R3465 R3464 Q3451 Q3452 Q3511 Q3454 Q3453 Q3307 Q3304 Q3302 Q3301 Q3305 Q3303 IC3301 GNDD B 12.V+9 11.V+9 10.GNDRF 9.GNDRF 8.LOUT 7.GNDA 6.ROUT 5.GNDRF 4.VD+9 3.GNDD 2.NC 1.NC 4 5 1 OUT G IN VD+9 OUT G IN VP VP GNDS GNDS VREF GNDA GNDA MUTE STANDBY R+ R- L- L+ R+ R- L- L+ GNDP GNDP GNDP VP +B GNDRF GNDD VPRE9 VP +B GNDP GNDS GNDS 8 Rin Lin ForSERVICE Rch Lch GNDD MAIN ASSY AWU8264 BINDER ASSY VA+9 PNE-1B1 PNE-1B1 12 1 GNDA (ANP7535-B) MAIN ASSY A SIDE B SIDE B A D D A BINDER ASSY D CN3701 CN11 CN3401 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 25 5 6 7 8 5 6 7 8 C D F A B E 4.2 PRIMARY ASSY 4 3 2 1 1 2 1 1 2 R L1 C1 AN1 C3 C2 CN2 H1 H2 S1 W102 W103 W101 W104 KN1 W106 W105 W208 W209 PNE-1B1 PRIMARY AWU8266 PRIMARY ASSY FU1 REMPLACER PAR LE FUSIBLE PAR UN ATTENTION REPLACE WITH SAME TYPE AND RATINGS OF FUSE. CAUTION MODELE IDENTIQUE EN INTENSITE OPEN SIDE AWU8265 CN2 to TRANSFORMER AN1 AC IN (ANP7535-B) PRIMARY ASSY C SIDE A SIDE A C C www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 26 1 2 3 4 1 2 3 4 C D F A B E 2 1 R LF LIVE NEUTRAL PRIMARY A PNE-1B1 (ANP7535-B) PRIMARY ASSY C SIDE B SIDE B C C CN2 AN1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 27 5 6 7 8 5 6 7 8 C D F A B E 4.3 TX ASSY 12 1 R 12 1 C8111 L8051 C8061 C8051 C8052 C8053 C8054 W212 D8002 D8003 W227 JA8202 JA8001 S8901 D8501 D8503 D8502 D8504 W185 W188 W187 W189 W178 W181 W180 W179 C8101 C8102 C8205 C8206 C8008 C8001 W226 CN8201 W186 C8062 W211 W210 W223 W222 W221 W194 W203 PCB SPACER PCB SPACER PCB SPACER GND AWU8260 PNE-1B1 AXF7015 GNDA GND GNDA GND (others) AXF7017 (MAXJ) VD+5 CH4 CH3 CH2 CH1 Ch TX ASSY IC3301 GNDA GNDRF V+5RF CH1 CH3 VA+5 GNDA VREF (ANP7535-B) CN8201 WIRELESS IN to TX MODULE JA8202 DC 12V IN JA8001 TX ASSY E SIDE A SIDE A E E www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 28 1 2 3 4 1 2 3 4 C D F A B E R LF C8011 IC8051 R8209 C8007 R8210 D8051 D8101 D8104 C8006 R8106 R8104 R8103 R8101 R8102 R8105 D8103 C8022 C8023 C8063 C8055 C8056 C8057 C8058 R8051 R8052 R8053 R8054 R8055 R8056 R8057 R8058 R8108 R8107 R8207 R8001 R8002 R8208 R8502 R8501 R8504 R8503 R8511 R8510 R8512 D8001 D8004 Q8501 IC8052 L8201 L8202 D8102 IC8101 C8103 C8104 R8505 R8506 R8507 R8508 C8113 C8010 C8901 C8009 C8204 C8203 C8202 C8201 C8002 Q8502 Q8503 Q8504 R8201 R8202 C8021 R8206 R8203 R8204 R8205 C8024 C8025 C8064 Q8501 Q8502 Q8503 Q8504 IC8051 IC8052 IC8101 GND B 5 4 1 8 GNDA GND GNDA GND V+5 AWU8260 A 5 4 1 8 PCB SPACER VREF V+5RF GNDA GNDA VA+5 GNDRF CH3 CH1 PNE-1B1 VD+5 1 12 1.V+5RF V+5RF GNDRF GNDRF CH1 CH2 CH3 CH4 Ch AIR GNDA AIL TX ASSY E SIDE B SIDE B E E (ANP7535-B) CN8201 JA8202 JA8001 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 29 5 6 7 8 5 6 7 8 C D F A B E 4.4 LED and RX ASSYS 5 1 12 1 12 1 5 1 5 1 R 12 1 1 12 1 5 R D5901 D5902 CN5901 D8901 W224 W195 CN8203 KN3 KN2 C8018 IC8003 CN8204 W193 C8212 C8013 C8014 S8902 C8211 CN5902 W219 D8006 W218 W215 W216 W217 W225 W228 W214 W200 IC8003 PCB SPACER PCB SPACER PCB SPACER AWU8262 PNE-1B1 LED ASSY GNDRF A TUNED POWER AXF7016 V+9 RX ASSY AWU8263 GNDD LEDTUN1 LEDTUN2 LEDPOW GNDD UPPER CONTACT CONTACT SIDE VD+9 GND GNDRF GNDRF PNE-1B1 CONNECT SIDE NJM78M05 GNDD GNDRF VD+9 GNDRF CN8204 CN8203 CN5902 CN5901 CN3701 to RX MODULE A (ANP7535-B) (ANP7535-B) RX ASSY F LED ASSY B SIDE A SIDE A B F F B www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 30 1 2 3 4 1 2 3 4 C D F A B E R LF R LF Q5901 R5905 R5906 R5901 R5902 R5903 R5904 R5907 R5908 C9002 C9001 R8905 D8005 R8214 R8213 C9003 C9004 R8901 R8216 R8215 R8903 C8213 C8902 C8015 C8016 C8214 C8026 C8017 R8904 R8902 Q8901 Q5901 Q8901 1 GND TUNED POWER V+9 V+5RF 1 V+9 AWU8263 LED ASSY AWU8262 LEDTUN1 LEDTUN2 1.GNDD GNDD LEDPOW GNDD LEDTUN1 LEDTUN2 LEDPOW GNDD 5 VD+9 GNDRF GNDD ROUT GNDRF GNDA LOUT GNDRF V+9 1.NC NC GNDD VD+9 GNDRF VD+9 GNDRF GNDRF GNDRF GNDRF OUT G IN 5 1 12 1 PNE-1B1 PNE-1B1 12 GNDRF 1.V+5RF GNDRF GNDRF SYNC IDSTAT IDLEARN UGND LOUT GNDA ROUT (ANP7535-B) (ANP7535-B) RX ASSY F LED ASSY B SIDE B SIDE B B F F B CN8204 CN8203 CN5902 CN5901 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 31 5 6 7 8 5 6 7 8 C D F A B E 5. PCB PARTS LIST Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5 6 1 4 7 3 R 5 0 1 R 0 5 6 2 1 NOTES: 560 Ω 47k Ω 0.5 Ω 1 Ω RD1/4PU J RD1/4PU J RN2H K RS1P K 56 x 10 1 47 x 10 3 R50 1R0 561 473 5.62k Ω RN1/4PC F 562 x 10 1 5621 Mark No. Description Part No. LIST OF ASSEMBLIES NSP 1..COMPLEX ASSY AWM8001 2..TX ASSY AWU8260 2..MAIN ASSY AWU8261 2..RX ASSY AWU8262 2..LED ASSY AWU8263 2..BINDER ASSY AWU8264 2..PRIMARY ASSY AWU8266 1..TX MODULE AXF7015 1..RX MODULE AXF7016 Mark No. Description Part No. A MAIN ASSY SEMICONDUCTORS >IC12, IC13 AEK7047 >IC11, IC14 AEK7049 IC3301 BA4558F-HT >IC3302 LA4663 >IC15 NJM78M09FA Q3451, Q3452 2SA1576A Q3453, Q3454, Q3511 2SC4081 Q3455 2SD1858X Q3305 DTC114YK D12–D16, D3451, D3503, D3511 1SS355 >D11 D3SBA20(B) >D17 S1WB(A)60SD D3304, D3371 UDZS4R7(B) D3453 UDZS9R1(B) SWITCHES AND RELAYS RY3301 ASR7019 CAPACITORS C3310 CEAL101M25 C3451 CEANP101M10 C15, C3306, C3312, C3371, C3372 CEAT100M50 C19 CEAT101M25 C12, C3512 CEAT1R0M50 C3462, C3464 CEAT221M6R3 C16 CEAT222M25 C3383, C3384 CEAT2R2M50 C3313, C3463, C3511 CEAT470M25 C3387 CEAT471M6R3 C13 CEAT682M25 C3301, C3302 CEATR47M50 C3311, C3386, C3391, C3392 CKSRYB103K50 C3303, C3304, C3319, C3320 CKSRYB222K50 C3375, C3376 CKSRYB223K50 C3355-C3362 CKSRYB224K16 C3373, C3374 CKSRYB682K50 RESISTORS Other Resistors RS1/16S###J OTHERS CN3701 12P PLUG 53290-1210 CN11 4P CONNECTOR B4PS-VH CN3401 5P-VH CONNECTOR B5P-VH 1 PCB BINDER VEF1040 KN11 WRAPPING TERMINAL VNF1084 B LED ASSY SEMICONDUCTORS D5901, D5902 SLR-343MC OTHERS CN5902 5P FFC CONNECTOR 52044-0545 C PRIMARY ASSY SWITCHES AND RELAYS >S1 ASG7024 CAPACITORS >C3 (0.01/AC250V) ACG7039 OTHERS H1, H2 FUSE CLIP AKR7001 >CN2 2P-VH CONNECTOR B2P3-VH >AN1 AC INLET 1P XKP3042 D BINDER ASSY OTHERS 10 PCB BINDER VEF1040 E TX ASSY SEMICONDUCTORS IC8101 NJM12904M IC8051 NJM2374AM Q8501-Q8504 2SC4081 >D8001 1SR154-400 D8051 RB160L-40 Mark No. Description Part No. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 32 1 2 3 4 1 2 3 4 C D F A B E 6. ADJUSTMENT D8101-D8104 RB751V-40 D8501-D8504 SLR-343MC D8004 UDZS2R0(B) SWITCHES S8901 VSG1024 COILS AND FILTERS L8051 DTL1122 CAPACITORS C8201-C8204 CCSRCH221J50 C8103, C8104 CCSRCH470J50 C8055 CCSRCH471J50 C8101, C8102, C8205, C8206 CEAT100M50 C8052 CEAT101M10 C8051 CEAT101M25 C8001 CEAT331M25 C8054 CEAT471M25 C8008 CEAT471M6R3 C8021-C8024 CKSRYB102K50 C8011, C8113, C8901 CKSRYB103K50 RESISTORS Other Resistors RS1/16S###J OTHERS JA8001 DC POWER JACK AKN7038 CN8201 B TO B CONNECTOR 12P AKP7200 JA8202 2P PIN JACK PKB1034 F RX ASSY SEMICONDUCTORS >IC8003 NJM78M05FA Q5901, Q8901 2SC4081 D8901 SLR-343MC SWITCHES S8902 VSG1024 CAPACITORS C8013, C8211, C8212 CEAT100M50 C8014 CEAT220M50 C8026 CKSRYB102K50 C8902 CKSRYB103K50 RESISTORS Other Resistors RS1/16S###J OTHERS CN5901 5P FFC CONNECTOR 52045-0545 CN8204 12P SOCKET 52418-1210 CN8203 B TO B CONNECTOR 12P AKP7200 G TX MODULE TX MODULE has no service part. H RX MODULE RX MODULE has no service part. Mark No. Description Part No. There is no information to be shown in this chapter. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 33 5 6 7 8 5 6 7 8 C D F A B E 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DIAGNOSIS NOTE 1. NOTE This product is an amplifier product without volume control. Therefore, if an audio signal from CD player, etc is inputted to the Transmitter, a loud sound will come out from receiver. The signal generator or some products with Pri-out is recommended. 2. NOTES ON REPLACE OF PARTS (ID-related) The ID number for an individual product is stored in the RF module. (TX module : AXF7015 and RX module : AXF7016) It should be noted that wireless communications cannot be performed unless these ID numbers are identical. Replacement of the TX or RX module Upon replacement of the TX (AXF7015) or RX (AXF7016) module, ID learning setting is required. Method of ID learning setting ID learning is an act which sends the ID number of a transmitter to a receiver and makes ID of a receiver the same as a transmitter. i) Press ID learning button (RX ASSY : S8902) and hold it. ii) D8901 on RX Assy will blink. Receiver is ready for learning ID. iii) Press the "Channel" button of Transmitter and hold it over 3sec. iv) Transmitter's Channel LED will blink. It will trigger the ID learning process v) If Receiver finishes learning, D8901 will change to lighting from blinking. Note : The ID learning process won't be enabled if only press the button for either Transmitter or Receiver one side. It must press two sides in the same time. * Do not use the "ID learning setting" to customer's receiver unit when there is no customer's transmitter unit. Using "ID learning setting" in this case, ID data of the customer's receiver unit will be changed to the another ID that is same as a substitute transmitter unit. When using "ID learning setting" to customer's receiver unit without customer's transmitter unit, ask customer to bring the transmitter unit and set the ID number for each pair of the customer's transmitter and receiver unit. 3. If receiving condition is unstable. Check if there is a source of interference with signal reception, such as a wireless LAN, Bluetooth device, microwave, or digital cordless phone, near the products. If only a specific channel can be received, or if reception is unstable only on a specific channel, existence of source of interference near the products is likely the cause. If it is confirmed that unstable reception is not caused by some source of interference, the Tx or Rx module may be defective. If so, replace the module. Transmitter MAIN Assy RX Assy D8901 S8902 ID Data [ID learning setting image] Receiver (Wireless SP) F A www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 34 1 2 3 4 1 2 3 4 C D F A B E Know-how : When audio is interrupted and unstable Purpose : This wireless speaker system usese a 2.4GHz radio wave frequency, which is a band used by other wireless system (See list below). There is a case that becomes to interrupt the the sound, and becomes unstable by the influence from other product. The following knowledge is necessary to divide whether it is the interference or the trouble of the product. Confirm whether there is some equipment that gives the influence. * : It differs according to the product. It follows the classification if it was written "DS" and "FH" in the indication of the product. When you cannot specify the equipment Even if it is used in the neighborhood, it is likely to be influenced. The category can be forecast from the symptom. If sound is interrupted at a constant cycle, there is a possibility that it is to be near the FHSS equipment. Action method 1 ) DSSS It is possible to improve by changing channel. 2 ) FHSS It is not possible to avoid by changing the channel. Please separate the distance between equipment or turn off the power while using wireless speaker system. 3 ) Microwave According to the product, it is possible to improve by set channel to 1ch. Please separate the distance between equipment. 4 ) Other Try the switch of the channel or changing the position of the product, etc. If there is no product using 2.4GHz The radio waves received by the wireless speaker include the radio wave coming directly from the transmitter (direct wave) and waves coming from various directions due to reflections by the walls, furnitures and building (reflected waves). The reflected waves (due to obstacles and reflecting objects) further produce a variety of reflected waves as well as variation in reception condition depending on loacations. If the audio cannot be received properly due to this phenomenon, try to move the location of the transmitter or the wireless speaker a little. Product uses 2.4GHz Product Type Wireless LAN Bluetooth FHSS Microwave ovens microwave oven Headset, PDA, wireless mouse, keyboard, etc. DSSS 802.11b,g (except 802.11a), Wireless broad band routers Others * Some baby monitors, Cordless phones, Wireless AV equipment, etc. Detail Category www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 35 5 6 7 8 5 6 7 8 C D F A B E 7.1.2 TROUBLE SHOOTING (1) In a case where the power is not turned on (the channel indicator is not on) 1. Transmitter side No power (The channel indicator is not on.) Check around IC8051. Replace the AC adaptor. LED(D8501-D8504) or Transistor(Q8501-Q8504) may be broken. The module may be broken. Replace the module. Is the AC adaptor's Voltage active? Is either of potential of CN8201 pin5-8 active? Is V+5 voltage active? (CN8201 pin 1,2, C8054) No No No Yes Yes Yes (2) In a case where no sound is output No sound Check the Audio Lines sequentially from WIRELESS IN to CN8201. The module may be broken. Replace the module. Is TUNED LED in Receiver lit? No The module may be broken. Replace the module. No Yes Yes Has the signal inputted from WIRELESS IN reached to AIR(pin11) AIL(pin12) in CN8201? www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 36 1 2 3 4 1 2 3 4 C D F A B E (1) In a case where the power is not turned on (the POWER LED does not light) 2. Receiver (Wireless SP) side No power (The POWER LED does not light.) Check that the circuits are not short-circuited. (*1) : FFC between CN5901 (RX Assy) and CN5902 (LED Assy) Is the FFC (*1) correctly inserted? Is the fuse FU1 blown? Is the IC11 and/or IC14 in MAIN Assy broken? Insert the FFC correctly. Replace the FU1 fuse. No No No No No No Yes Is the POWER LED lit? Yes Yes Is the POWER LED lit? Yes Yes Is the POWER LED lit? Yes Yes Replace IC11 and/or IC14. Yes Inspection completed. As the circuit for +9 V is most likely to have been short- circuited, check the circuits around IC15. (2) In a case where no sound is output No sound Is TUNED LED lit? Is the relay on? Check the "SP PROTECT"circuits around Q3455 and Q3454. No Check the Transmitter side. No Yes Yes Replace IC12 and IC13. Is +B voltage active? No Yes (A) (B) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 37 5 6 7 8 5 6 7 8 C D F A B E Check the circuits around Q3305 and Q3511. IC3302 STANDBY(pin 5) : "H"? MUTE(pin 6) : "L"? No No Yes Check the audio lines sequentially from jumper lead to amplifier input (IC3302 pin 2 and pin 4). It is most likely that the RX module or Transmitter section is in failure. The +B and ground circuits are most likely to be short-circuited, or IC3302 is likely to be broken. Detach the RX module, then by inputting an audio signal to the jumper lead for servicing(*2), check if sound is output. No sound Sound is output. Are the IC12 and IC13 in MAIN Assy broken? Yes To diagnosis of the Transmitter section (A) (B) (*2) See page 39. (2-2) In a case where no sound is output www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 38 1 2 3 4 1 2 3 4 C D F A B E 7.1.3 DIAGNOSIS OF TX and RX MODULES After diagnosis, in the case that the module is judged to NG, since diagnosis of a failure part is difficult, replace the modules. It may be able to distinguish which is NG between Transmitter and Receiver simply. 1. When there are a transmitter and a wireless SP as a substitute for the repair unit. cross-check Transmitter & Receiver with good one. NOTE : individual ID is written in the module respectively. It is necessary to write ID in the case of a cross-check. Refer to "Method of ID learning setting" for a method. * Do not use the "ID learning setting" to customer's receiver unit when there is no customer's transmitter unit. Using "ID learning setting" in this case, ID data of the customer's receiver unit will be changed to the another ID that is same as a substitute transmitter unit. When using "ID learning setting" to customer's receiver unit without customer's transmitter unit, ask customer to bring the transmitter unit and set the ID number for each pair of the customer's transmitter and receiver unit. 2. When there is no other module. Diagnosis by simple detection Touch the shield case side of C64 of TX module with a simple detection circuit tool like the following figure. (see the figure below) In case RF is amplified correctly, and the radio wave goes out from TX module, LED lights up thinly. If LED does not light up, the transmitting circuit of TX module may be broken. Check point [TX Module] Shield Case LED (E.g. Parts No. SLR-343MC) Shottky diode Shottky diode (E.g. Parts No. HSM107S) To Check point Simple detection circuit Tool www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 39 5 6 7 8 5 6 7 8 C D F A B E 7.1.4 DIAGNOSIS OF THE AMPLIFIER SECTION 8 5 1 4 + - 4 1 LF Ó Ó C3701 R3373 R3375 R3372 R3381 C3377 R3377 R3378 C3376 C3375 R3379 C3391 R3376 IC3301 C3373 R3997 R3371 C3386 C3395 C3396 C3392 R3996 R3380 R3382 C3374 C3381 R3995 C3382 R3374 312 R3307 R3308 R3405 R3455 R3512 Q3511 Q3454 R3458 R3459 Q3453 R15 R12 R11 R16 R3460 R3461 D3511 R3511 R3513 R3514 D14 D12 D13 D15 D16 D3451 D3452 D3453 D3371 D17 D3503 2 315 R17 R18 R3463 R3465 R3464 GNDD 12.V+9 11.V+9 10.GNDRF 9.GNDRF 8.LOUT 7.GNDA 6.ROUT 5.GNDRF 4.VD+9 3.GNDD 2.NC 1.NC 4 5 1 VD+9 GNDS GNDS VREF GNDRF GNDD VPRE9 GNDS 8 Rin Lin ForSERVICE Rch Lch GNDD VA+9 12 1 GNDA MAIN ASSY Jumper Wire for service for Signal Input The Amplifier section can be diagnosed even if the transmitter section is not available. Input the Audio Signals to the Jumper Wire for service use indicated below. At that time, remove the RX MODULE. A SIDE B www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 40 1 2 3 4 1 2 3 4 C D F A B E 7.1.5 PROTECTION CIRCUIT DC detection circuit SP PROTECT is set to "H" Q3453 turns on, next Q3454 turns off. In connection with it, the power supply (+VP) to IC3302 POWER IC is lost in RY3301 relay turning off. Therefore, an unusual state (DC output state) is canceled. In addition, if an unusual state is canceled, since RY3301 relay turns on, DC detection of it will be carried out again, SP PROTECT will be set to "H", and RY3301 will repeat ON/OFF. Cautions: Since RY3301 relay repeats ON/OFF, a check on a feeling of hearing can be taken at the time of abnormalities. Since a relay repeats ON/OFF, be careful of +VP voltage at the time of diagnosis. PROTECT Operation Description A MAIN ASSY (AWU8261) E C B B 4 3 E C B E B C E E C C B 1 2 3 1 2 5 4 13 11 14 12 5 7 8 9 2 6 10 3 4 1 Q3454 R3463 C3464 C3463 D3452 D3451 RY3301 R3464 R3456 Q3455 Q3451 D3453 C3462 R3459 R3465 Q3453 R3461 R3460 R3462 R3458 C3451 R3455 R3457 Q3452 R3451 R3452 R3453 R3454 C3311 C3310 CN3401 RY3301 C3312 C3313 IC3302 220/6.3 2SC2412K(QR) 56k -TS 47/25 STBY ASR7019 10k 2SD1858X(QR) VPRE9 2SA1576A GNDD UDZS9R1(B) 10k 10k 220/6.3 220 2SC4081 220 220 3.9k STBY VREF5 VD+9 NP 100/10 4.7k 10k 2SA1576A 0.01 100/25 GNDP GNDP B5P-VH 4.7k 4.7k 4.7k 4.7k ASR7019 VP +B +B -TS 10/50 -TS 47/25 LA4663 (1/2) (QR) SP PROTECT (QR) (QR) (2/2) AL-TS L in SR+ (L+) SL- (R-) SR- (L-) SL+ (R+) NC SL+ (R+) SL- (R-) SR- (L-) SR+ (L+) GNDP R- OUT R+ OUT L- OUT STANDBY MUTE MUTE GNDP VCC2 VCC1 GNDA R IN L IN L+ OUT RF IC3302 LA4663 TO SPEAKER www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 41 5 6 7 8 5 6 7 8 C D F A B E 7.1.6 DISASSEMBLY 1 1 2 1 1 1 Remove the four screws. 2 Remove the Grille Assy. Grille Assy Grille Assy 1 1 Rear view Rear view -1 2 -2 1 Remove the three screws. 2 Remove the two screws. 3 Release the two wires. 4 Disconnect the one connector and the one flexible cables. 5 Pull out the chassis section. Chassis Section 2 Note: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common. 1 1 2 2 3 3 5 4 4 Chassis section www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 42 1 2 3 4 1 2 3 4 C D F A B E PCB Location Arrangement of the wires Power supply section PRIMARY Assy Slit Slit PCB binder RX Module C MAIN Assy A RX Assy F H BINDER Assy D LED Assy B Speaker section Angle B Mini Clamp MAIN Assy MAIN Assy BINDER Assy Slit PCB binder www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 43 5 6 7 8 5 6 7 8 C D F A B E 7.2 IC NJM2374AM (TX ASSY : IC8051) • DC/DC Converter NJM2374AM, LA4663 Pin Layout Block Diagram • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. List of IC NJM2374AM 1.CS 2.ES 3.CT 4.GND 5.IN+ 6.V+ 7.SI 8.CD 1 4 3 2 8 5 6 7 1 1.5A MAX. ON DUTY 9:1 OSC Section 4 3 2 8 5 6 7 V+ ES GND PW LOGIC M R S Q Vref 1.25V ± 2% CD CT CS SI IN+ Vth=300mV Ipk Sense PWM COMP ERR.AMP 160Ω www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 44 1 2 3 4 1 2 3 4 C D F A B E + – – + 6 5 14 2 + – 12 13 R1 22kΩ C4 10uF 10V + – C3 47uF 25V + – C5 2200uF 25V C1 4.7uF 10V +5V Ri= 20kΩ Ri= 20kΩ SIGNAL MUTE IN1 3 1 PRE GND PWR GND1 –OUT1 +OUT1 C6 C7 R2 2.2Ω R3 2.2Ω RL=4~8Ω RL=4~8Ω – + 9 4 + – 11 10 C2 4.7uF 10V IN2 PWR GND2 –OUT2 +OUT2 C8 0.1uF C9 R4 2.2Ω R5 2.2Ω Input Amplifier Input Amplifier Output Amplifier Output Amplifier CH 1 CH 2 Ripple Filter/ Starting Time 7 8 +5V STAND BY V CC1 VCC2 VCC 0.1uF 0.1uF 0.1uF LA4663 (MAIN ASSY : IC3302) • POWER IC Blockdiagram Pin Function No. Pin Name I/O Pin Function 1 RF O RF connection 2 R IN I R ch Audio data input 3 GND A − Ground A 4 L IN I L ch Audio data input 5 STANDBY I Standby input 6 MUTE I Signal Mute Input Power supply 1 Power supply 2 7 VCC1 − 8 VCC2 − 9 L+OUT O L ch + Amplifier Output 10 GND P − Ground P 11 L- OUT O L ch - Audio data Output 12 R- OUT O R ch - Audio data Output 13 GND P − Ground P 14 R+ OUT O R ch + Amplifier Output www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com XW-HTP550 45 5 6 7 8 5 6 7 8 C D F A B E 8. PANEL FACILITIES Wireless speaker System Wireless speaker 1 CHANNEL indicators Light to indicate the selected channel. 2 CHANNEL In case of poor reception due to interference from other electrical devices, you can improve reception by selecting another channel. Each time you press the button, the channel changes sequentially: 3 Transmitter antenna Transmits signals to the wireless speaker. CH 2 CH 3 CH 4 CH 1 Upper POWER OFF ON TUNED POWER OFF ON TUNED AC IN Back 4 TUNED indicator Lights when the signal from the transmitter is properly received. 5 POWER indicator Lights when the wireless speaker is switched on. 6 POWER Press to switch the unit on or off. 7 AC inlet Transmitter CHANNEL 1 2 3 4 2 1 4 7 6 5 3 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com