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 2003 S-DV990SW RRV2806 POWERED SUBWOOFER S-DV990SW THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Model Type Power Requirement Remarks S-DV990SW MYXJI AC220-230V S-DV990SW NVXJI AC230V This product does not finction properly when independent ; to avoid malfunctions, be sure to connect it to the prescribed system component(s), otherwise damage may result Component System Service Manual Remarks XV-DV990 RRV2792 S-DV990SW RRV2806 RRV2811 S-DV990ST DVD/CD TUNER POWERED SUBWOOFER SPEAKER SYSTEM This manual For details, refer to "Important symbols for good services". T-ZZE JULY 2003 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 S-DV990SW 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 (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) 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 S-DV990SW 3 5 6 7 8 5 6 7 8 C D F A B E [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 2. Adjustments To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed. 3. Cleaning For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances. 5. Lubricants, glues, and replacement parts Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. 4. Shipping mode and shipping screws To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary. 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described 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 S-DV990SW 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 PRODUCT APPEARANCE SECTION....................................................................................................... 8 2.3 AMPLIFIER ASSY ................................................................................................................................... 10 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.......................................................................................... 12 3.1 BLOCK DIAGRAM AND OVERALL CONNECTION DIAGRAM .............................................................. 12 3.2 AF and TRADE 1 ASSY........................................................................................................................... 14 3.3 6CH AMP ASSY ...................................................................................................................................... 16 3.4 POWER ASSY......................................................................................................................................... 18 3.5 PRIMARY ASSY ...................................................................................................................................... 20 4. PCB CONNECTION DIAGRAM ..................................................................................................................... 22 4.1 AF and TRADE 1 ASSY........................................................................................................................... 22 4.2 6CH AMP ASSY ...................................................................................................................................... 26 4.3 POWER ASSY......................................................................................................................................... 28 4.4 PRIMARY ASSY ...................................................................................................................................... 32 5. PCB PARTS LIST ........................................................................................................................................... 34 6. ADJUSTMENT ............................................................................................................................................... 36 7. GENERAL INFORMATION............................................................................................................................. 37 7.1 DIAGNOSIS ............................................................................................................................................. 37 7.1.1 PROTECTION CIRCUIT ....................................................................................................................... 37 7.1.2 DISASSEMBLY ..................................................................................................................................... 39 7.2 IC ............................................................................................................................................................. 41 7.3 CLEANING............................................................................................................................................... 41 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 S-DV990SW 5 5 6 7 8 5 6 7 8 C D F A B E 1. SPECIFICATIONS Amplifier Section Continuous Power (RMS) . . . . . 75 W / channel . . . . . . . . . . . . . . . . . . . . . (1 kHz, THD 10%, 6 Ω) Miscellaneous (MY and NV types) Power Requirements MY type . . . . . . . . . .AC 220–230 V, 50/60 Hz NV type . . . . . . . . . . . . . . AC 230V, 50/60 Hz Power Consumption . . . . . . . . . . . . . . . . . 163 W Power Consumption in standby mode . . . . . . . . . . . . . . . . . . . 0.48 W Powered subwoofer (S-DV990SW) Type . . . . . .Bass reflex floor type, antimagnetic Speaker . . . . . . . . . . . . . . . . . .18 cm (cone type) Nominal impedence. . . . . . . . . . . . . . . . . . . .6 Ω Frequency range. . . . . . . . . . . . . . . 25 – 2300 Hz Max. input . . . . . . . . . . . . . . . . . . . . 75 W (JEITA) Dimensions. . . . 192 (W) x 436 (D) x 395 (H) cm Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . .12.5 kg • Specifications and design subject to possible modification without notice, due to improvements. http://getMANUAL.com 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 S-DV990SW 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: 19 22 20 15 (1/2) 15 (2/2) POWERED SUBWOOFER FAN COVER 18 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 S-DV990SW 7 5 6 7 8 5 6 7 8 C D F A B E PACKING parts List (2) CONTRAST TABLE S-DV990SW/MYXJI and S-DV990SW/NVXJI are constructed the same except for the following: Mark No. Description Part No. 1 • • • • • • 2 • • • • • • 3 • • • • • • 4 • • • • • • 5 • • • • • • 6 • • • • • • 7 • • • • • • 8 • • • • • • 9 • • • • • • 10 • • • • • • 11 • • • • • • 12 • • • • • • 13 • • • • • • 14 • • • • • • 15 Protector SHA2379 16 • • • • • • 17 • • • • • • 18 Protector SHB1097 19 Protection Sheet SHC1790 20 Packing Case See Contrast table(2) 21 • • • • • • 22 Poly Bag S6 SHL1292 Mark No. Description Part No. Mark No. Symbol and Description S-DV990SW/ MYXJI S-DV990SW/ NVXJI 20 Packing Case SHG2491 SHG2506 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 S-DV990SW 8 1 2 3 4 1 2 3 4 C D F A B E 2.2 PRODUCT APPEARANCE SECTION RED BLACK FOR SP RED (-) RED (+) BLACK (+) BLACK (-) IN WF CIRCUIT DIAGRAM 1 5 6 8 9 10 11 12 13 14 21 15 22 20 3 4 7 16 20 17 18 25 25 2 19 26 24 16 5 23 5 23 9 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 S-DV990SW 9 5 6 7 8 5 6 7 8 C D F A B E PRODUCT APPEARANCE SECTION parts List (2) CONTRAST TABLE S-DV990SW/MYXJI and S-DV990SW/NVXJI are constructed the same except for the following: Mark No. Description Part No. NSP 1 Cabinet SMM1994 NSP 2 Amp Ass'y See Contrast table(2) 3 Connecting Cord SDF1095 4 Packing SEC1540 5 Packing SEC1634 6 Damper SER1300 NSP 7 Stamped Serial Label See Contrast table(2) NSP 8 Duct Ring SMR1339 NSP 9 Cosmetic Duct SMR1356 NSP 10 Paper Tube 70 SMR1362 NSP 11 Acoustic Absorbent SMV2077 NSP 12 Acoustic Absorbent SMV2078 NSP 13 Acoustic Absorbent SMV2079 NSP 14 Mesh SNC1188 NSP 15 Cosmetic Board SNK2673 NSP 16 Cosmetic Baffle SNK2672 17 Speaker T16EU92 18 Screw BPZ40P120FZB 19 Screw BPZ35P080FZB 20 Screw BYC40P160FZB 21 Screw BYC40P200FZB 22 Washer WA43F090M080 NSP 23 Gasket SEC1735 NSP 24 Gasket SEC1736 25 Acoustic Absorbent SMT1216 26 Acoustic Absorbent SMT1217 Mark No. Description Part No. Mark No. Symbol and Description S-DV990SW/ MYXJI S-DV990SW/ NVXJI NSP 2 Amp Ass'y AXX7155 AXX7164 NSP 7 Stamped Serial Label SME3407 SME3426 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 S-DV990SW 10 1 2 3 4 1 2 3 4 C D F A B E 2.3 AMPLIFIER ASSY A A 29 C 2 A 8 18 9 21 24 36 24 27 24 22 16 17 5 23 23 26 14 15 19 13 19 1 E 3D 10 25 25 25 11 4 B 6 7 28 30 31 31 31 32 32 12 20 33 33 35 34 34 34 34 34 34 34 34 34 24 24 24 24 24 24 24 24 24 24 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 S-DV990SW 11 5 6 7 8 5 6 7 8 C D F A B E AMPLIFIER ASSY parts List (2) CONTRAST TABLE S-DV990SW/MYXJI and S-DV990SW/NVXJI are constructed the same except for the following: Mark No. Description Part No. 1 PRIMARY ASSY AWU8001 2 AF ASSY AWU8098 3 POWER ASSY AWU8097 4 TRADE 1 ASSY AWU8028 > 5 POWER TRANSFORMER T1 ATS7367 > 6 Fuse (FU1 : T3.15A) REK1027 > 7 Fuse (FU4 : T5A) REK1029 NSP 8 Chassis ANA7109 9 Rear Panel See Contrast table(2) 10 Hs Holder F ANG7439 11 Hs Holder R ANG7440 12 Cushion B AEB7290 13 Cushion AEB7319 14 Card Spacer AEC7133 15 Wire Saddel AEC7297 16 Nylon Rivet AEC7318 17 Fan Cover AEC7427 18 Wood Base AMM7008 NSP 19 PCB Mould AMR1525 20 Rocking Card Spacer ONK1035 NSP 21 SP Label AAX7956 NSP 22 Serial Paper RRW-168 23 Screw SBA1061 24 Screw BBZ30P080FMC 25 Screw BBZ30P200FMC 26 Screw BYC40P140FMC 27 Screw PSC30P080FNI NSP 28 AMP MODULE 6CH AXQ7242 29 6CH AMP ASSY AWM7720 30 DC Fan Motor AXM7025 31 FET Bracket ANG7418 32 Fan Plate ANG7462 33 Heat Sink ANH7166 34 Screw BBZ30P140FMC 35 Screw BBZ30P300FZK NSP 36 USE ASSY • • • • • Mark No. Description Part No. Mark No. Symbol and Description S-DV990SW/ MYXJI S-DV990SW/ NVXJI 9 Rear Panel ANC8226 ANC8227 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 S-DV990SW 12 1 2 3 4 1 2 3 4 C D F A B E 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM AND OVERALL CONNECTION DIAGRAM 6CH AMP ASSY (AWM7720) C IC3301 STK402-270 IC3401 STK402-270 1 6 16 18 1 6 16 18 17 3 IC3002(1/2) BA4558F 2 1 3 1 FLN FLP CN CP 5 31 33 34 36 15 11 9 6 IC3101(1/2) UPC4570 IC3103(1/2) BA4558F IC3104(2/2) BA4558F 6 3 2 3 2 IC3104(1/2) BA4558F 5 6 7 IC3103(2/2) BA4558F 5 6 7 IC3004(1/2) BA4558F IC3003(1/2) BA4558F IC3004(2/2) BA4558F 2 3 2 1 5 6 SWN SWP SLN SLP 7 IC3102(1/2) BA4558F 7 1 1 5 6 7 AF ASSY (AWU8098) A TRADE 1 ASSY (AWU8028) B IC3001 M62446AFP 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 S-DV990SW 13 5 6 7 8 5 6 7 8 C D F A B E POWER ASSY (AWU8097) D RY3361(1/3) RY3461(1/3) RY3561(2/3) D41 D31 VH+ VL+ VH- VL- D11 UN+8 PRIMARY ASSY (AWU8001) E D51 RY51(2/2) Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". 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 S-DV990SW 14 1 2 3 4 1 2 3 4 C D F A B E 3.2 AF and TRADE 1 ASSY A CN3052 D (C) (SW) : C ch AUDIO SIGNAL ROUTE (SL) : SL ch AUDIO SIGNAL ROUTE (FL) : FL ch AUDIO SIGNAL ROUTE : SW ch AUDIO SIGNAL ROUTE (FL) (FL) (FL) (FL) (FL) (FL) (FL) (FL) (SW) (SW) (C) (SL) (SL) (SL) (SL) (SL) (SL) (FL) (FL) (FL) (SL) (C) (C) (C) (C) (C) (SW) (SW) (SW) (SW) (SW) (SW) (C) (SL) 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 S-DV990SW 15 5 6 7 8 5 6 7 8 C D F A B E 0.047 2.7k 10k 220p 10k 220p 10k 10k 220p 220p 10k 220p 2.2k 2.7k 2.2k 2.7k 0.033 0.033 0.033 27k 39k 27k 2.2k 2.7k 2.2k 2.7k 2.2k 0.033 0.047 0.047 0.047 0.047 0.033 18k AF ASSY (AWU8098) A B A CN3001 C CN3002 C CN3051 D CN3054 D (SL) (SL) (SL) (SW) (C) (SL) (SW) (SW) (FL) (FL) (SW) (SW) (SL) (SL) (C) (C) (SW) (FL) (SL) (C) (FL) (FL) (FL) (FL) (FL) (C) (C) (SW) (SW) (SW) (SW) (SW) (SW) TRADE 1 ASSY (AWU8028) B To Speaker : The power supply is shown with the marked box. http://getMANUAL.com 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 S-DV990SW 16 1 2 3 4 1 2 3 4 C D F A B E 3.3 6CH AMP ASSY Non Distortion Circuit 2 3 5 CN3651 CN3001 CN3002 to FAN Motor (SL) (FL) (SW) (C) (SL) (FL) (SW) (C) C CN3705 A CN3704 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 S-DV990SW 17 5 6 7 8 5 6 7 8 C D F A B E 6CH AMP ASSY (AWM7720) C (C) (SW) : C ch AUDIO SIGNAL ROUTE (SL) : SL ch AUDIO SIGNAL ROUTE (FL) : FL ch AUDIO SIGNAL ROUTE : SW ch AUDIO SIGNAL ROUTE (C) (FL) (SW) (SL) C : Refer to "7.1.1 PROTECTION CIRCUIT" : The power supply is shown with the marked box. 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 S-DV990SW 18 1 2 3 4 1 2 3 4 C D F A B E 3.4 POWER ASSY D CN51 E CN3703 A CN3707 B CN3706 B (FL) (C) (SW) (SW) (SW) (SL) (FL) (FL) (FL) (SW) (SL) (C) (SL) (C) (SW) 38.43V 24.784V 14.66V 12.112V 15.883V -39.21V -25.513V CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491005 MFD, BY LITTELFUSE INK. FOR IC3051. 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 S-DV990SW 19 5 6 7 8 5 6 7 8 C D F A B E 1 4 : Refer to "7.1.1 PROTECTION CIRCUIT" D POWER ASSY (AWU8097) D (C) (SW) : C ch AUDIO SIGNAL ROUTE (SL) : SL ch AUDIO SIGNAL ROUTE (FL) (FL) (FL) (SL) (SL) (SL) (C) (C) (C) (C) (C) (SW) (SW) (SW) (SW) (SW) (FL) (FL) : FL ch AUDIO SIGNAL ROUTE : SW ch AUDIO SIGNAL ROUTE To Speaker : The power supply is shown with the marked box. • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY. CAUTION - 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 S-DV990SW 20 1 2 3 4 1 2 3 4 C D F A B E 3.5 PRIMARY ASSY E CN3053 D CN11 D 11.619V 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 S-DV990SW 21 5 6 7 8 5 6 7 8 C D F A B E E PRIMARY ASSY (AWU8001) 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 S-DV990SW 22 1 2 3 4 1 2 3 4 C D F A B E 4. PCB CONNECTION DIAGRAM 4.1 AF and TRADE 1 ASSY 23 1 1 1 XMUTE F 23 1 23 1 DC FC GNDA GNDA VP+12 GNDA GNDA VA-12 GNDA GNDA GNDM UNE+56 VA+12 VP+12 VP+3 VD+5 SW C SR SL FR FL 1 1.GNDF UN+8 UN+8 GNDREG 5.GNDREG XPROTECT TUNER VD+5 VA-12 10.VP+15 VFL+5 SENSE+8 MUTEC MUTE 15.FLIN GNDA FRIN CIN SWIN 20.SLIN SRIN VP+8 VP+8 VP+8 GNDF GNDAC RYF XMUTE GNDD VP+8 VD+5 XPROTECT J3705 P ON/OFF VP+12 VA+12 VA+12 FL ANDREW OUT FR ANDREW OUT C ANDREW OUT SW ANDREW OUT SR ANDREW OUT SL ANDREW OUT D GNDA EVOL OUT EVOL OUT EVOL OUT EVOL OUT EVOL OUT EVOL OUT NE M PF2 23 J3705 W338 W189 W167 R3071 C3122 D3003 C3038 R3041 C3037 D3006 R3040 D3004 C3032 D3005 C3119 C3118 C3005 C3006 C3011 C3012 C3017 W169 W142 C3108 C3107 C3081 C3124 C3125 C3126 C3127 C3082 C3121 W198 W197 W138 W345 W193 W351 W192 W196 8 W172 CN3703 W168 W199 W342 W171 W195 W137 80 W146 W145 W129 W356 W175 7 W203 W202 W204 W144 W125 W205 W170 W143 W200 W201 W194 W191 W174 W357 CN3704 W117 W173 C3128 C3129 W176 W343 W122 W118 W116 W341 W135 W136 W141 W140 W139 W119 W313 W190 W317 W340 W337 W375 W334 W335 W339 W358 W359 SIDE A A CN3052 D AF ASSY A CN3703 C 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 S-DV990SW 23 5 6 7 8 5 6 7 8 C D F A B E 15 14 1 13 1 4 1 10 1 CN3706 CN3707 J3703 J3704 TRADE ASSY 15 1 13 1 1 AWU8028 10 1 NE M PF2 20 1 23 1 1 23 4 1 10 1 10.SWOUT GNDS FLOUT FROUT FROUT VH- 1.VH- POW ON/OFF VA+12 10.VP+12 GNDM VP+3 SLOUT VL- FLOUT VL+ 20.VL- 1.XMUTE GNDP 15.COUT COUT VH+ VH+ SROUT SROUT XPROTECT GNDD VD+5 15.GND GNDA GND GNDF UN+8 UN+8 GNDREG 20.GNDREG GNDREG 1.GNDA VP+8 VP+8 VP+12 5.GNDM VP+3 DATA CLK NC 10.VA-12 UNE+56 GND XMUTE 15.LATCH NC 1 20 23 1 23 SLOUT SWOUT GNDA GNDA 5.GNDAC UNE+56 1 10 1 GNDA VL+ 5.GNDP RYF AC1 RYR GNDD VD+5 S C SR SW C SR SL FR FL 1 1 1.GNDF UN+8 UN+8 GNDREG 5.GNDREG XPROTECT TUNER VD+5 VA-12 GNDA GNDM ACPULSE 20.POW ON/OFF XPROTECT NC 1.SWN FLN FLP FRP 5.SWP FRN CP SRN 10.SRP SLN CN SLP GNDD VD+5 GNDA VA+12 VP+8 VP+8 GNDD GNDA GNDD EVOL IN EVOL IN EVOL IN EVOL IN EVOL IN EVOL IN EVOL OUT E EVOL OUT 23 J3705 C3004 C3009 C3010 C3015 C3016 C3021 C3032 C3003 R3036 R3035 C3022 CN3701 C3 C3017 CN3702 CN3705 C3019 C3020 C3043 C3045 CN3601 W148 W160 W184 W131 W183 W155 C3048 W154 W156 W162 W157 W130 W180 W151 W182 W150 W153 W146 W145 W129 W147 W177 W204 W205 W178 C3047 W206 W208 W207 W336 W343 W209 W161 W346 W344 J3701 J3702 W361 W378 SIDE A B A TRADE 1 ASSY B CN3054 D CN3002 C CN3001 C CN3051 D To DVD/CD TUNER To DVD/CD TUNER To Speaker CN3707 CN3706 CN3704 CN3705 CN3702 CN3701 CN3601 J3702 J3701 J3704 J3703 (ANP7432-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 S-DV990SW 24 1 2 3 4 1 2 3 4 C D F A B E 15 1 13 1 1 4 10 1 SW GNDRSW VH- FROUT GNDP FLOUT GNDS SWOUT VH+ COUT VL+ SROUT VL- SLOUT NE M PF2 CN3707 CN3706 J3704 J3703 21 1 42 2222 21 42 1 8 5 4 1 8 5 4 1 8 5 4 1 20 1 23 1 23 1 4 10 1 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 1 -A AF ASSY AWU8005 SW GNDRSW VH- FROUT GNDS FLOUT GNDP SWOUT VH+ COUT VL+ SROUT VL- SLOUT 1 VP+15 VFL+5 SENSE+8 GNDREG UN+8 UN+8 GNDREG XPROTECT TUNER VD+5 VA-12 GNDF GND GNDM VP+8 GNDA GND GNDM DATA LATCH XMUTE XPROTECT VP+8 VP+12 VP+3 UNE+56 VA-12 CLK GNDM GNDM ACPULSE POWON/OFF AWU8096 AWU8098 1 23 1 5 10 15 20 5 10 20 15 2 1 CN3702 3 4 5 6 7 8 9 10 11 12 CN3701 CN3601 AWU 8 7 AWU8053 R3001 R3003 R3005 C3001 C3002 R3008 R3004 R3006 R3002 IC3001 C3023 R3042 R3043 R3044 C3036 C3034 C3035 C3117 R3126 R3122 R3121 C3115 C3116 R3 R3112 R3018 R3014 R3016 R3012 R3017 R3013 R3015 R3011 C3008 C3007 C3014 R3028 R3024 R3026 R3022 C3013 R3027 R3025 R3023 R3021 C3024 C3033 C3031 R3030 R3019 R3020 R3010 R3009 R3029 C3 R3007 IC3002 IC3003 IC3004 R3095 R3097 R3098 R3094 R3096 C3029 C3028 C3025 C3026 C3030 C3027 R3089 R3090 C3039 C3040 C3041 R3566 C3570 C3568 C3566 D3025 D3024 D3022 D3023 D3021 D3020 D3019 D3009 D3027 D3028 D3029 D3030 D3026 D3007 D3011 D3010 D3008 D3017 R3155 R3160 R3047 D3002 D3001 D3018 D3014 D3016 D3015 D3013 D3012 R3050 R3049 R3159 SIDE B A B AF ASSY A TRADE 1 ASSY B CN3707 CN3706 CN3704 CN3705 CN3702 CN3701 CN3601 J3702 J3701 J3704 J3703 IC3001 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 S-DV990SW 25 5 6 7 8 5 6 7 8 C D F A B E 8 5 4 1 8 5 4 1 8 5 4 1 8 5 4 1 23 1 1 0 0 0 1 -A NE M PF2 VP+15 VFL+5 SENSE+8 MUTEC MUTE FLIN GNDA FRIN CIN SWIN SLIN SRIN VP+8 VP+8 GNDREG UN+8 GNDREG XPROTECT TUNER VD+5 VA-12 RYR AC1 XMUTE GND VD+5 GNDA GND VP+3 GNDM VP+12 VA+12 POWON/OFF UNE+56 GNDAC ACU RYF GNDREG GNDREG XPROT GNDD GNDF UN+8 UN+8 23 1 23 10 20 15 5 15 10 20 AWU R3149 C3105 C3106 R3104 C3101 R3102 R3042 R3043 R3044 C3034 C3035 C3117 C3120 R3126 R3039 R3037 R3038 R3105 IC3101 IC3103 R3106 R3122 R3121 C3115 C3116 R3123 IC3102 R3116 R3114 R3112 C3112 R3115 R3111 C3111 R3113 C3113 C3114 C3031 R3103 R3101 C3103 C3104 C3102 C3109 C3110 R3127 R3109 R3107 R3110 R3108 R3117 R3119 R3124 R3125 R3118 R3120 R3081 R3082 R3142 R3138 R3140 R3136 R3134 R3133 R3135 IC3104 R3132 R3143 R3141 R3139 R3137 R3033 R3032 R3031 R3085 R3084 R3083 R3130 R3131 R3129 C3123 R3086 R3087 R3034 Q3006 Q3001 Q3003 Q3002 Q3007 Q3008 Q3009 Q3081 Q3005 Q3004 Q3101 Q3102 R3046 R3045 C3132 R3158 R3128 R3157 C3133 R3155 R3160 R3144 R3145 R3146 R3147 Q3103 C3131 R3150 R3153 R3151 R3154 C3130 R3148 R3152 C3134 R3048 R3049 C3049 C3050 R3159 C3018 SIDE B A (ANP7432-D) CN3703 04 IC3101 IC3104 Q3006 Q3001 Q3003 Q3002 Q3007 Q3008 Q3009 Q3081 Q3005 Q3004 Q3101 IC3102 IC3103 http://getMANUAL.com 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 S-DV990SW 26 1 2 3 4 1 2 3 4 C D F A B E 4.2 6CH AMP ASSY 19 10 1 23 1 1 FLOUT 1 word surface 1 23 AWM SLOUT GNDS SWOUT VA-12 GNDREG SROUT VD+5 VPF+15 VP+15 XPROTECT VF-12 +B GNDP GNDP VL+ VL- IRFI9Z34G -B VL- 2SD2012 NJM7912FA Surface Word IRFIZ34G D3393 W205 D3389 W198 R3388 W170 W143 W142 C3423 W147 W171 W190 IC3401 W144 W146 W127 W197 Q61 D3391 CN3001 W111 W112 Q62 D3385 IC71 D3392 Q3383 W182 W199 W181 W175 W180 Q3384 D3387 D72 D3388 W202 C72 W200 W201 W183 W185 W207 R3387 D3386 W206 C63 W184 W203 W204 D3322 D3390 D3394 IRFI9Z34G FLOUT SWOUT SROUT 1 23 word surface 19 10 1 19 10 1 AMP Assy 7788 GNDP VH+ VL+ VL- NJM7805FA 1 23 FROUT VH+ VH- AWM -B +B GNDP SLOUT GNDS GNDP FR1S P Production Code Word Surface UN+8 VA-12 FC DC 7787 7786 7720 SWOUT VA-12 GNDREG SROUT VD+5 VPF+15 VP+15 XPROTECT VF-12 +B -B GNDP GNDP GNDP VL+ VL+ VL- +B IRFI9Z34G -B VL- Surface IRFIZ34G D3393 R3318 D3389 W198 R3388 W120 W170 W143 C3478 W138 W139 W140 Q91 W142 R3427 W141 W154 C3377 C3577 R3520 C3402 D3325 W123 C98 D3324 C3424 C91 C3317 C3578 C3423 C3422 D98 D3328 W124 C3501 D3651 D3652 W104 D3653 D3654 W121 W126 D3326 W159 W151 W158 W105 W125 W145 W148 W147 D3323 W172 W171 W107 W173 IC81 C3301 D82 C3652 C3651 D3655 W106 W109 W110 W108 W119 C3508 R3657 Q3654 W192 W122 C3653 W161 W195 W196 W194 W160 CN3002 IC3301 W190 W169 IC3401 W168 D3427 D3428 D3422 W187 W162 D3423 R3519 D3421 W167 R3517 W188 W166 R3417 W163 W150 C3323 C3307 W144 W193 W146 W127 D3426 R3422 R3420 R3419 W191 W197 R3418 W164 D3391 W129 C3408 C3507 D3424 W128 CN3001 W111 W113 W130 W135 W112 W165 W189 Q62 C82 W103 W101 W117 D3385 D3425 IC71 W131 W132 C101 D3392 Q3383 W149 W136 W116 W118 R3428 W115 W114 W133 W157 W177 W179 W176 R3421 W182 W178 W174 W199 W181 W175 W180 C3407 C3421 Q3384 W137 D3387 D72 C3378 IC3303 D3388 D3327 W202 C72 C3322 R3328 R3327 C3318 W200 W201 W183 W185 W152 W207 R3387 D3386 W206 W184 C3179 W203 R3320 C102 C3167 R3317 W102 C3178 C3302 D3322 C3401 D3321 C3308 W153 C3321 R3321 R3322 W155 R3518 C3502 C3324 D3390 W156 C3477 D3394 R3319 C3168 23 1 19 10 1 23 1 SIDE A SIDE A C C (ANP7461-A) 6CH AMP ASSY C CN3705 A CN3001 CN3704 A CN3002 IC3303 IC81 IC3301 Q91 IC71 IC3401 Q62 Q3384 Q3654 Q61 Q3383 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 S-DV990SW 27 5 6 7 8 5 6 7 8 C D F A B E NP NP D 23 1 23 1 SWOUT SWOUT VH+ VH+ VH- VH+ VL+ VA-12 VP+15 VD+5 VL- TUNER XPRCT GNDR GNDR UN+8 UN+8 GNDF SLOUT SLOUT VL+ VL+ SROUT SROUT VL- VH- VL- FLOUT SWOUT SROUT 1 VH- AMP Assy SROUT GNDREG GNDP 7788 COUT FROUT GNDP FROUT COUT IC3301 FROUT VH+ FAN SIDE FLOUT FLOUT GNDS GNDP C2 E2 -B GNDP +B GNDP SWOUT SLOUT GNDS G S FR1S P VPR+8 VPR+8 SRIN SLIN SWIN CIN FRIN GNDA SEN+8 FLIN MUTE MUTEC VFL+5 UN+8 VA-12 AWM 7720 7786 7787 C1 B1 B2 E1 IC3401 VD+5 VPF+15 VP+15 XPROTECT VF-12 VL+ VA-12 GNDP +B VL+ +B GNDP -B VL- GNDP -B VL- 1 B C E S D G G D S C3509 R3511 R63 R3412 C3410 R3411 C3409 D3341 R3571 R3513 R3501 D104 R121 D3381 R3478 R3574 R3378 R3414 R3471 R3577 TH121 Q121 Q43 Q3433 R3377 D3443 R3443 R3439 R3435 R3576 Q92 D3441 R3345 R47 R45 D3582 R91 D91 C81 R46 R3476 Q3301 Q3372 R3373 R3375 R3374 R3376 C97 Q3371 C92 R3472 R3503 R95 R3426 R3416 R48 C3426 R92 R123 R114 R113 R3371 R111 Q111 R93 R96 R122 R3512 R97 R3313 R112 D3581 Q3653 R3301 Q3531 R3303 Q3652 R3651 D3657 R3506 TH111 D3658 R94 R3658 R3656 R3655 R3654 C3504 Q3651 Q107 R108 Q106 D42 R3307 R3509 R3507 R3505 Q3532 R3492 D3482 D3481 R3491 Q3432 R3531 C3503 R3545 C3305 R3316 R3305 C3303 R3309 R3532 R3537 R3533 D106 R3543 R3539 R3432 R3438 R3434 R3591 R3424 R3538 R3575 R3451 R3534 R3544 R3540 R3592 D3382 C3506 C3406 Q101 Q102 Q104 Q103 C61 C3505 R3406 R3311 R3312 C3309 R3408 C3404 C71 R3351 C62 R3410 D3343 R109 R67 D102 R65 R3510 R3508 Q63 Q3431 R3431 R3437 R3433 C3405 R3407 R3423 Q3434 R101 Q3501 Q3533 R3391 R3405 Q3401 R3392 C3403 C3510 Q3333 Q3334 R3409 R64 R68 R3340 R3344 D3344 R3343 R3383 Q3402 Q3504 R3339 C3310 R3334 Q3502 R103 Q3302 R3382 R3384 D105 R3386 R3332 D101 R62 Q3332 R61 R102 R3385 Q3382 R3390 R104 Q3331 R3326 Q3534 R105 R106 Q3381 D3544 R3381 R66 C3326 R3338 R3514 R3335 R3304 R3502 R3302 R3337 R3403 R3401 R3331 R3333 R3402 R3323 R3324 C3304 R3573 C3306 R3310 R3306 R3308 R3404 R3389 D3543 Q3572 R3572 R3578 R3446 D3444 R3444 R3372 R3500 R3504 R3477 R3314 R3440 R3445 R3413 R3546 R3346 Q3571 Q3471 Q3472 R3473 R3475 R3474 SIDE B SIDE B Q92 Q3301 Q3402 Q3504 Q3502 Q3302 Q3401 Q3382 Q3332 Q3331 Q3432 Q3334 Q3333 Q3653 Q3652 Q3532 Q3381 Q3534 Q63 Q104 Q3651 Q107 Q106 Q101 Q102 Q103 Q121 Q43 Q3471 Q3572 Q3372 Q3371 Q111 Q3533 C C (ANP7461-A) 6CH AMP ASSY C CN3001 CN3002 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 S-DV990SW 28 1 2 3 4 1 2 3 4 C D F A B E 4.3 POWER ASSY 4 3 2 1 4 3 2 1 4 3 2 1 4 1 4 3 1 23 1 7 1 A B C OPEN SIDE OPEN SIDE OPEN SIDE 4 1 7 1 1 23 1 ATTENTION 1 +6AC +6AC GND VL VL VH VH -REPLACE FUSE CAUTION RISK OF FIRE 7 1 REFERENCE 491005 DE CHEZ LITTELFUSE INC. IC3051 N'UTILISER QUE LA BY LITTELFUSE INC. #491005 FOR IC3051 MFD. REPLACE WITH SAME TYPE CAUTION EN CAS REMPLACEMENT DES FUSIBLES IC3054 IC3053 BOND BOND BOND BOND BOND BOND BOND BOND IC31 IC32 IC11 IC12 VL+ VL- VR+12 VH+ VH- VH- VH+ VL- VL+ VH+ VL+ VL- VH- GNDP GNDS GNDAC VP+12 GNDA GNDREG GNDF UN+8 WORD SURFACE FU4 BOND AS MARKED. NE M PF2 I H 4700 u / 35 2200 u / 50 6800u/25 C42 D41 IC41 KN3001 D32 C37 C34 IC33 C33 D31 C19 C17 C18 C16 R11 D11 C15 C3603 C3602 C3601 R3602 D3603 D3601 CN42 D3602 CN11 CN3052 C13 C14 C11 C12 C31 C32 R31 C41 C35 Q3606 Q3608 W249 W259 W365 H42 W280 W262 W360 W282 W305 W300 W283 W263 W281 W224 W303 W248 W233 W260 W261 W267 W266 W264 W265 W304 W234 W285 W301 W287 0 9 W366 W284 W286 W291 W302 W292 W363 W354 W235 W364 W236 W250 W232 W216 W353 W376 W246 W320 W322 W324 W323 W321 H41 W362 W380 CN3053 W379 IC3051 IC3052 SIDE A D POWER ASSY D CN3703 A To Power Transformer CN3052 CN11 CN51 E CN3053 B IC41 IC33 Q3606 Q36 IC3051 IC3052 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 S-DV990SW 29 5 6 7 8 5 6 7 8 C D F A B E 4 9 5 10 8 3 7 2 6 1 6 3 5 2 4 1 15 14 1 13 1 OPEN SIDE D E PEN SIDE PRODUCTION CODE ATTENT 1 1 SL SR C FL FR 15 1 1 13 REFERENCE 4910 EN CAS REMPL BOND BOND BOND BOND BOND BOND VH+ VL+ VL- VH- GNDP GNDS GNDP VR+12 VD+5 VR+12 W299 KN3001 C3604 D3604 C3602 C3601 R3602 D3603 R3562 L3562 R3552 R3561 L3561 R3551 R3462 L3462 R3452 L3461 R3461 R3451 L3362 R3362 R3352 R3361 L3361 R3351 D3601 W238 W227 D3602 CN3401 R3622 RY3361 RY3561 RY3461 Q3606 Q3608 Q3614 W271 W374 R3621 W306 W307 W308 W229 W285 W241 W269 W254 W270 W287 W290 W293 W268 W294 W289 W288 W275 W252 W272 W251 W273 W291 W219 W217 W292 W237 W235 W228 W236 W231 W239 W218 W230 W276 W297 W298 W310 W309 W253 W311 W242 W243 W244 W255 W355 W312 W278 W257 W279 W277 W353 W274 D3606 W226 W245 W315 W314 CN3054 CN3051 IC3051 IC3052 SIDE A (ANP7432-D) D CN3706 B CN3054 CN3707 B CN3051 Q3606 Q3608 IC3051 Q3614 052 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 S-DV990SW 30 1 2 3 4 1 2 3 4 C D F A B E A B C 1 0 0 3 2 1 0 9 8 7 6 5 4 3 2 1 0 1 15 1 13 1 7 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 1 -A NE M PF2 POWER ASSY AWU8097 AWU8006 CN3053 CN3051 GNDP GNDP 15.SWOUT SWOUT 13.SW SW GNDRSW GNDRSW VH+ VH+ COUT COUT VL+ VL+ SROUT SROUT VL- VL- SLOUT SLOUT FLOUT FLOUT 1.GNDS FROUT FROUT VH- VH- 1 1.NC 1 1 AWU8007 CN3054 CN3051 CN3401 AWU 7 8 R3612 R3611 R3603 R3608 R3606 R3605 R3604 C3552 R3556 C3562 C3564 R3564 R3558 R3554 R3555 C3561 C3563 R3563 R3557 R3553 C3465 C3467 C3468 C3466 C3567 C3565 D3451 C3569 R3465 R3565 R3466 C3462 C3464 R3464 R3458 R3454 R3455 R3456 C3470 C3461 C3463 R3453 C3469 R3463 R3457 C3367 C3368 R3364 R3358 D3351 D3352 R3356 R3355 R3365 C3365 R3366 C3366 C3362 C3364 R3354 C3370 C3369 C3363 C3361 R3363 R3357 R3353 R3601 R3610 R3609 R3607 D3605 Q3351 Q3352 Q3451 Q3452 Q3551 Q3552 Q3601 Q3603 Q3607 Q3609 Q3602 Q3604 Q3605 Q3612 Q3610 Q3615 Q3613 Q3611 D3452 D3552 D3551 D3353 D3354 D3453 D3454 D3553 D3554 D3561 D3361 D3461 R3699 C3605 SIDE B D POWER ASSY D Q3615 C CN3054 CN3051 Q3351 Q3352 Q3451 Q3452 Q3551 Q3552 Q3601Q3603 Q3607 Q3609 Q3602 Q3605 Q3612 Q3610 Q3613 Q3611 Q3604 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 S-DV990SW 31 5 6 7 8 5 6 7 8 C D F A B E 1 4 7 1 23 1 7 1 CN3052 23.GNDF UN+8 UN+8 20.GNDREG GNDREG XPROT GNDD VD+5 GND VP+3 GNDM 10.VP+12 VA+12 POWON/OFF UNE+56 GNDAC 5.ACU RYR AC1 1.XMUTE RYF 15.GND GNDA 1 CN3052 CN3053 C36 C21 C22 C23 C20 C3301 C3302 C3304 C3303 R3301 R3699 C38 R3052 R3051 SIDE B (ANP7432-D) D CN3052 CN11 CN3053 607 Q3609 04 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 S-DV990SW 32 1 2 3 4 1 2 3 4 C D F A B E 4.4 PRIMARY ASSY 3 1 3 1 7 1 9 5 4 1 W101,W102 TUBE SIDE 4 1 2 1 DFL ONLY DFL ONLY 7 1 FU2 FU1 PRIMARY SECONDARY FU3 W114,W115 240V These knob position is W163,W164 Except DFL,YPW Except YPW ONLY YPW ONLY W187,W188 DFL,YPW ONLY DFL,YPW ONLY W222,W223 W212,W213 Except DFL,YPW W214,W215 NE M PF2 Except YPW Except YPW 1 DFL,YPW UNE+56 GNDS (S101 and S102) R1 C51 AN1 C1 C2 C52 C3 L1 H2 H1 H3 H4 H6 H5 CN2 CN1 KN2 S101 S102 Q51 RY51 D52 W371 W115 W188 W377 CN51 W101 W114 T2 W133 W211 W134 W164 W163 W369 W187 W166 W332 W102 W215 W214 W212 W213 W222 W185 W223 W186 W368 W220 W221 W210 W165 W331 W348 W349 W347 W350 W370 W373 W372 SIDE A SIDE A E E (ANP7432-D) PRIMARY ASSY E To Power Transformer T1 CN1 AC IN AN1 CN3053 D CN51 Q51 NEUTRAL LIVE 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 S-DV990SW 33 5 6 7 8 5 6 7 8 C D F A B E + - 4 1 2 1 7 1 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 1 -A G PRIMARY ASSY AWU8004 AWU8003 AWU8030 AWU8045 NE M PF2 CAUTION PRIMARY SECONDARY AWU8001 MODELE INDENTIQUE EN INTENSITE REMPLACER PAR LE FUSIBLE PAR UN AND RATINGS OF FUSE REPLACE WITH SAME TYPE ATTENTION NEUTRAL LIVE CN51 CN1 CN2 8 7 AWU 110 - 120V 220 - 230V 240V 110 - 120V 220 - 230V 240V D51 R53 R52 D54 R55 R54 Q52 R51 D55 D53 SIDE B SIDE B E E (ANP7432-D) PRIMARY ASSY E CN1 AN1 CN51 Q52 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 S-DV990SW 34 1 2 3 4 1 2 3 4 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 [S-DV990SW] NSP 1..DVD AMP ASSY AWM7839 2..PRIMARY ASSY AWU8001 2..TRADE 1 ASSY AWU8028 2..POWER ASSY AWU8097 2..AF ASSY AWU8098 NSP 1..AMP MODULE 6CH AXQ7242 2..6CH AMP ASSY AWM7720 Mark No. Description Part No. AAF ASSY [AWU8098] SEMICONDUCTORS IC3002-IC3004, IC3102-IC3104 BA4558F-HT IC3001 M62446AFP IC3101 UPC4570G2 Q3004, Q3005 2SC4081 Q3009 UN5112 Q3081 UN511L Q3008 UN5212 Q3006 UN521L D3004-D3006 1SS133 D3003 MTZJ2.7B D3001, D3002 UDZS6.8B D3007-D3030 UDZS8.2B CAPACITORS C3034-C3036 CCSRCH101J50 C3130-C3134 CCSRCH331J50 C3003, C3004, C3009, C3010 CEAL100M16 C3015, C3016, C3019, C3020, C3043 CEAL100M16 C3045 CEAL100M16 C3032 CEAL101M6R3 C3021, C3022 CEAL221M10 C3048 CEAL470M16 C3037, C3121, C3122 CEAT100M50 C3081, C3082 CEAT220M50 C3038, C3047, C3107, C3108 CEAT470M25 C3118, C3119 CFTLA224J50 C3001, C3002, C3007, C3008 CKSRYB103K50 C3013, C3014, C3025, C3028, C3031 CKSRYB103K50 C3105, C3106, C3113, C3114, C3117 CKSRYB103K50 C3120 CKSRYB103K50 C3023, C3024 CKSRYB104K25 C3123 CKSRYB332K50 C9001, C9002 CKSRYB392K50 C3566, C3568 CKSRYB473K50 C3026, C3029 CKSRYB474K10 C3027, C3030 CKSRYB822K50 C3017 CQMBA683J50 C3570 (10pF/100V) XCG3008 RESISTORS R3035, R3036 RD1/2PM151J R3041 RD1/2PM222J R3040 RD1/4PU273J R3050 RS1/10S0R0J R3005-R3008, R3015-R3018 RS1/16S1001F R3025-R3028 RS1/16S1001F R3001-R3004, R3011-R3014 RS1/16S2201F R3021-R3024 RS1/16S2201F Other Resistors RS1/16S###J OTHERS 3701 CABLE HOLDER(4P) 51052-0400 3702 CABLE HOLDER(10P) 51052-1000 CN3601 2P CONNECTOR 5569-02A1 CN3703-CN3705 23P SOCKET AKP7075 CN3702 20P SOCKET AKP7129 CN3701 12P CONNECTOR AKP7131 J3701 JUMPER WIRE D25PYY0415E J3702 JUMPER WIRE D25PYY1015E PCB BINDER VEF1040 BTRADE 1 ASSY [AWU8028] OTHERS 3703 CABLE HOLDER(4P) 51052-0400 3704 CABLE HOLDER(10P) 51052-1000 CN3707 13P SOCKET AKP7070 CN3706 15P SOCKET AKP7071 C6CH AMP ASSY [AWM7720] SEMICONDUCTORS > IC81 NJM7805FA > IC71 NJM7912FA > IC3301, IC3401 STK402-270 Q3382, Q43 2SA1576A Q62 2SB1237X 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 S-DV990SW 35 5 6 7 8 5 6 7 8 C D F A B E Q111, Q3381, Q63, Q92 2SC4081 > Q61 2SD2012 Q3301, Q3302, Q3401, Q3402 2SD2114K Q3501, Q3502, Q3504 2SD2114K Q3654 2SD2144S Q107, Q3653 DTA124EUA Q3652 DTA124TK Q106 DTC124EUA > Q3383, Q91 IRFI9Z34G > Q3384 IRFIZ34G Q3651 RN1901 Q101, Q103 UMB1N Q102, Q104 UMH1N > D3321-D3326 1SR139-400 D3327, D3328 1SR139-400 > D3421-D3426 1SR139-400 D3427, D3428 1SR139-400 D3387, D3388, D3651-D3655 1SS133 D101, D102, D104, D3657, D42 1SS355 D3391, D3392 30PDA20-FC6 > D3381, D3382, D3481, D3482 DAN217 > D3581, D3582 DAN217 D3389, D3390 MTZJ10C > D98 MTZJ11B > D72 MTZJ15C D3393, D3394 MTZJ18B/C > D63 MTZJ18C D3385, D3386 MTZJ36A > D82 MTZJ7.5C D91 UDZS18B D105, D106, D3658 UDZS7.5B TH111 NCP18WF104J03RB CAPACITORS C3305, C3306, C3405, C3406 CCSRCH221J50 C3505, C3506, C62, C97 CCSRCH221J50 C3309, C3310, C3409, C3410 CCSRCJ3R0C50 C3509, C3510 CCSRCJ3R0C50 C3307, C3308, C3407, C3408, C3508 CEAL100M16 C3507 CEAL470M6R3 C72 CEAT100M50 C3651 CEAT101M25 C101, C102 CEAT1R0M50 C3323, C3324, C3423, C3424 CEAT221M50 C3167, C3168, C3178, C3179 CEAT2R2M50 C3301, C3302, C3317, C3318 CEAT2R2M50 C3401, C3402, C3501, C3502 CEAT2R2M50 C3652, C63, C82, C98 CEAT470M25 C3653 CEAT470M35 C3303, C3304, C3403, C3404 CKSRYB102K50 C3503, C3504 CKSRYB102K50 C92 CKSRYB104K16 C71, C81 CKSRYB473K50 RESISTORS R3317-R3320, R3417-R3420 ACN7122 R3517-R3520 (0.22ohm/2W) ACN7122 > R3327, R3328, R3427, R3428 RD1/4MUF470J R3387, R3388 RD1/4PU101J R3657 RD1/4PU330J Mark No. Description Part No. R96, R97 RS1/16S1002F > R3323, R3324, R3351, R3423, R3424 RS1/16S1R0J > R3451 RS1/16S1R0J R67, R68 RS1/16S2201F R94, R95 RS1/16S2701F > R62 RS1/16S330J R65 RS1/16S4700F R47, R48 RS1/16S4701F Other Resistors RS1/16S###J OTHERS CN3001, CN3002 23P PLUG AKP7064 CN3651 PLUG(2P) KM200SA2 DPOWER ASSY [AWU8097] SEMICONDUCTORS > IC3051 PROTECTOR(5A) AEK7046 > IC33 NJM7812FA Q3351, Q3352, Q3451, Q3452 2SC4081 Q3551, Q3552, Q3604, Q3605, Q3610 2SC4081 Q3612, Q3615 2SC4081 Q3614 2SD1858X Q3606, Q3608 DTA123JS Q3602 UN5112 Q3611, Q3613 UN511L Q3603 UN5212 Q3601, Q3607, Q3609 UN521L D3601-D3604, D3606 1SS133 D3351-D3354, D3361, D3451-D3454 1SS355 D3461, D3551-D3554, D3561 1SS355 > D11, D31, D41 D5SBA20(B) D3605 DA204K COILS AND FILTERS L3361, L3362, L3461, L3462 ATH-059 L3561, L3562 COIL ATH-059 CAPACITORS C33, C34 (4700uF/35V) ACH7171 C3601 CEAL100M50 C3602 CEAL101M10 C3604 CEAL470M16 C35 CEAT100M50 C3603 CEAT101M10 C18, C19 CEAT222M50 C37 CEAT470M25 C42 CEAT682M25 C36 CKSRYB103K50 C3365-C3368, C3465-C3468, C3565 CKSRYB473K50 C3567 CKSRYB473K50 C31, C32 CQMBA103J50 C3605 (10uF/10V) DCH1148 C20–C23, C3301-C3304 XCG3008 C3369, C3370, C3469, C3470, C3569 XCG3008 (10pF/100V) RESISTORS R3351, R3352, R3451, R3452 ACN7112 R3551, R3552 (0.1ohm,2W) ACN7112 R3361, R3362, R3461, R3462 RD1/2PM101J R3561, R3562 RD1/2PM101J R31 RD1/4PU100J Mark No. Description Part No. http://getMANUAL.com 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 S-DV990SW 36 1 2 3 4 1 2 3 4 C D F A B E 6. ADJUSTMENT R3602 RD1/4PU222J R3621, R3622 RD1/4PU820J Other Resistors RS1/16S###J OTHERS 3401 SPEAKER TERMINAL10-P AKE7081 CN3053 7P PLUG AKP7056 CN3051 13P PLUG AKP7059 CN3054 15P PLUG AKP7060 CN3052 23P PLUG AKP7064 H41, H42 FUSE CLIP AKR7001 RY3361, RY3461, RY3561 SP RELAY ASR7008 CN11 CONNECTOR B7P-VH KN3001 WRAPPING TERMINAL VNF1084 EPRIMARY ASSY [AWU8001] SEMICONDUCTORS Q52 2SC4081 Q51 2SD1858X D52 1SS133 D53, D54 1SS355 > D51 S1WB(A)60SD D55 UDZS20B COILS AND FILTERS > L1 LINE FILTER ATF7018 TRANSFORMERS > T2 POWER TRANSFORMER ATT7078 CAPACITORS > C1, C2 (0.022F/AC275V) ACE7022 > C3 (1000pF/AC250V) ACG7033 C52 CEAT102M25 RESISTORS All Resistors RS1/16S###J OTHERS CN51 7P SOCKET AKP7067 H1, H2 FUSE CLIP AKR7001 > RY51 RELAY ASR7027 > CN1 CONNECTOR B2P3S-VH > AN1 AC INLET 1P XKP3041 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 S-DV990SW 37 5 6 7 8 5 6 7 8 C D F A B E 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 PROTECTION CIRCUIT Note: Refer to the Schematic Diagram about the actual circuit. (The & number corresponds to the marked circuits.) 1 Protection circuit when the Speaker terminal becomes overloaded Q3601 Q3602 Q3603 B E C +5V D3351 C3605 0.1 D3601 R3351 0.1 R3601 4.7k R5527 270k R108 27k Front L ch to XPROTECT GND FL R3353 1.8k R3355 33k B A VD+5 + POWER Assy D 6CH AMP Assy C (DVD/CD TUNER) CONTROL Assy In Normal mode, the speaker (6 ohms) is connected between the FL and GND FL points. Because the voltage at Point A is higher than that at Point B, Q3601 does not operate. If the resistance between the FL and GND FL points becomes 1.83 ohms or less, Q3601 begins to operate, Q3602 is turned on, Q3603 (E, C, and B)is turned on, and the level of XPROTECT becomes MID. → The microcomputer detects the XPROTECT level and shuts the power to the unit off. B A C101 (C102) 1/50 + to XPROTECT (µ-com) 6CH AMP Assy C R108 27k R101 (R104) 1k R102 (R105) 10k R103 (R106) 10k R109 820 D105 (D106) Q102_1/2 (Q104_1/2) Q102_2/2 (Q104_2/2) Q101_1/2 (Q103_1/2) Q101_2/2 (Q103_2/2) D101 (D102) VD+5 VD+5 VH+ (VP+15) VH– (VA–12) 2 -1 Short-circuit-detection circuit for the amplifier power circuit (VH+[VP+15], VD+5, -12 V [VA-12]) Circuit for shutting the power off when VP+15, VD+5, or VA-12 is short-circuited to ground (GND) 2 -2 Short-circuit-detection circuit for the DVD power Line (VP+8) XPROTECT TUNER 6CH AMP Assy C VD+5 R108 27k D104 1SS355 Q106 DTC124EUA Q107 DTA124EUA VP+8 • In Normal mode, as Q101 (Q103) (E2, B2, C2) and Q102 (Q104) (E2, B2, C2) are on, the voltage at Point A is about 5 V. The voltage at Point B is therefore about the same. As Q101 (Q103) (E, C, B) is off, Q102 (Q104) (E, C, B) is also off. (1) When VH+(VP+15) is short-circuited to GND As the voltage at Point B becomes almost ground potential, and Q101 (Q103) (E, C, B) then Q102 (Q104) (E, C, B) are turned on, the level of XPROTECT becomes low. → The microcomputer detects the XPROTECT level and shuts the power to the unit off. (2) When VH-(VA-12) is short-circuited As the electric potential of VE at Q102 (Q104) (E2, C2, B2) becomes the same as that at VB, Q102 (Q104) (E2, C2, B2) is turned off. Following this, Q101 (Q103) (E2, B2, C2) is turned off, which changes the voltage at Points A and B to a value other than 5 V. Therefore, Q101 (Q103) (E, C, B) then Q102 (Q104) (E, C, B) are turned on, the level of XPROTECT becomes low. (3) When VD+5 is short-circuited The level of the XPROTECT line becomes low. The microcomputer detects the XPROTECT level and shuts the power to the unit off. C C E E B B B2 B2 E2 E2 C2 C2 As the TUNER line is fixed to GND level, Q107 is always on. If the level at VP+8 falls to GND level because of short-circuit, etc., Q106 is turned on, and the level of the XPROTECT line becomes low. ← The microcomputer detects the XPROTECT level and shuts the power to the unit off. * ( )means the wiring No. of VP+15 line. 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 S-DV990SW 38 1 2 3 4 1 2 3 4 C D F A B E A + to XPROTECT (µ-com) R108 27k Q3651_2/2 RN1901 Q3651_1/2 RN1901 C2 C E B E2 B2 VD+5 FAN+ VPF+15 V-12F R3654 1.8k D3658 UDZS7.5B D3657 1SS355 D3655 1SS133 D3651-D3654 1SS133×4 R3655 8.2k R3656 22k R3658 2.2k R3657 33(1/4W) Q3652 DTA124TK Q3654 2SD2144S C3652 47/50 6CH AMP Assy C 3 FAN detection circuit FAN– If no fan is connected between FAN+ and FAN-, or when the fan cannot rotate because of a foreign object caught in the blades, current will not flow to R3657, and Q3652 and Q3651-1/2 (E, C, B) are turned off. Then Q3651-2/2 (E2, B2, C2) is turned on, and the level of XPROTECT becomes low. → The microcomputer detects the XPROTECT level and shuts the power to the unit off. When FAN+ and FAN- are short-circuited, the electric potential at Point A becomes higher than GND level by the addition of the values at D3656 and D3657. As this value is lower than that at D3658, Q3651 (E, C, B) is turned off, Q3651 (E2, B2, C2) is turned on, and the level of XPROTECT becomes low. 4 DC detection circuit of SP terminal R3357 (R3457) 18k R3358 (R3458) 18k R3603 10k Front L ch (SW, SL) +5V C3602 100/10 Q3605 Q111 2SC4081 R113 220 IC81 NJM7805FA R112 1k TH111 NCP18WF104J03RB R111 1k Q3604 Q3606 Q3607 B C E + XPROTECT to XPROTECT POWER Assy D R108 27k VD+5 VD+5 6CH AMP Assy C 6CH AMP Assy C Front R ch (C, SR) • In Normal mode, both Q3605 and Q3604 are off. (1) When positive (+) DC voltage is generated at the SP terminal When positive (+) DC voltage is generated at the L or R channel, and VB of Q3605 becomes higher than that at the operation point, Q3606 (E, C, B) is turned on, and the level of XPROTECT becomes low. → The microcomputer detects the XPROTECT level and shuts the power to the unit off. (2) When negative (-) DC voltage was generated at the SP terminal Q3604 is turned on, and XPROTECT is activated. 5 IC81 abnormal temperature detection circuit A The voltage at Point A becomes the divided voltage of TH111 and R111//R112 (combined resistance of parallel-connected resistors R111 and R112.) In Normal mode, the resistance at TH111 is much higher than R111//R112, and Q111 is off. (Note that the resistance at TH111 becomes lower as the temperature increases.) If the solder temperature at IC81 increases abnormally, the temperature at TH111 (thermistor) mounted closest to the land of IC81 increases accordingly, and the resistance at TH111 decreases. When the temperature at TH111 reaches 90-110_C (varying according to conditions,) the voltage at Point (A) becomes high enough to turn Q111 on, and the level of the XPROTECT line becomes low. The microcomputer detects the XPROTECT level and shuts the power to the unit off. 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 S-DV990SW 39 5 6 7 8 5 6 7 8 C D F A B E 7.1.2 DISASSEMBLY Screw 1 Screw 2 Connecting Code Amplifier Assy Screw 2 Screw 1 1. Removing the Amplifier Assy 1) The Amplifier Assy is attached to the cabinet by six external screws 1. To detach it, pull down the subwoofer toward the left side. 2) Then unfasten those screws 1 . 3) Then stand up the speaker again. To detach the Amplifier Assy, first remove the connecting code. Then pull straight the Amplifier Assy toward back and remove it. 2. Removing the Subwoofer 1) The speaker element is attached to the back board by four external screws 2. To detach it, unfasten those screws. 2) When attaching it,face its terminal upward. 3. Removing the Cosmetic Baffle 1) The cosmetic baffie is attached to the baffle by press-fitting. To detach it,pry it open by inserting a flat blade screwdriver into lower side. 4. Removing the Cosmetic Duct 1) The cosmetic baffle, those screws are removed when removing the cosmetic duct attached in cosmetic baffle with four screws. 5. Diagnosis 1) Remove the four screws 3. 2) Disconnect the two connectors 4. 3) Remove the AMP MODULE 5. 3 3 4 5 4 3 3 AMP MODULE 6CH AF Assy 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 S-DV990SW 40 1 2 3 4 1 2 3 4 C D F A B E 4) Connect the two jig cables as figure below. Jig Cable (GGD1315) POWER Assy PRIMARY Assy AF Assy Diagnosis AMP MODULE 6CH 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 S-DV990SW 41 5 6 7 8 5 6 7 8 C D F A B E 7.2 IC 7.3 CLEANING EXPAND port in E-vol IC No. Mark Pin Name Pin Function Active 3 Q2 CMUTE Control C mute H 2 Q3 SPRYRC Control relay for rear and center speaker H 1 Q4 SPRYS Control relay for front speaker H M62446AFP (AF ASSY : IC3001) • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools: Position to be cleaned Cleaning tools Fans Cleaning paper : GED-008 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