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 GM-520T/XU/UC CRT3519 BRIDGEABLE TWO-CHANNEL POWER AMPLIFIER GM-520T/XU/UC For details, refer to "Important Check Points for Good Servicing". K-ZZA. AUG. 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 GM-520T/XU/UC 2 1 2 3 4 1 2 3 4 C D F A B E SAFETY INFORMATION CAUTION 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 - Service Precaution 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 GM-520T/XU/UC 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 GM-520T/XU/UC 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 EXTERIOR................................................................................................................................................. 8 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.......................................................................................... 10 3.1 SCHEMATIC DIAGRAM(GUIDE PAGE) .................................................................................................. 10 4. PCB CONNECTION DIAGRAM ..................................................................................................................... 16 4.1 AMP UNIT................................................................................................................................................ 16 5. ELECTRICAL PARTS LIST ............................................................................................................................ 20 6. ADJUSTMENT ............................................................................................................................................... 24 7. GENERAL INFORMATION............................................................................................................................. 25 7.1 DIAGNOSIS ............................................................................................................................................. 25 7.1.1 DISASSEMBLY ..................................................................................................................................... 25 7.1.2 CONNECTOR FUNCTION DESCRIPTION.......................................................................................... 26 8. OPERATIONS ................................................................................................................................................ 27 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 GM-520T/XU/UC 5 5 6 7 8 5 6 7 8 C D F A B E 1. SPECIFICATIONS 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 GM-520T/XU/UC 6 1 2 3 4 1 2 3 4 C D F A B E 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING NOTES : • Parts marked by " * " 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. • Screw adjacent to mark on the 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.) " 1 9 6 3 2 4 5 5 8 7 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 GM-520T/XU/UC 7 5 6 7 8 5 6 7 8 C D F A B E PACKING SECTION PARTS LIST Owner's Manual Mark No. Description Part No. 1 Screw Assy CEA5330 2 Screw BYC40P180FTB * 3 Polyethylene Sheet CNM4338 4 Cord Assy CDE7736 5 Protector CHP3066 6 Polyethylene Bag CEG1351 7 Carton CHG5587 8 Contain Box CHL5587 9-1 Polyethylene Bag CEG1116 9-2 Owner's Manual CRD4010 * 9-3 Card ARY1048 * 9-4 Caution Card CRP1324 Mark No. Description Part No. Part No. Language CRD4010 English, French, Spanish 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 GM-520T/XU/UC 8 1 2 3 4 1 2 3 4 C D F A B E 2.2 EXTERIOR A 11 1 10 34 38 37 36 35 10 13 13 13 13 26 13 13 28 27 13 13 13 29 30 19 14 18 2 13 13 13 29 25 16 32 32 7 1 1 1 1 1 6 2 3 3 2 2 2 8 2 20 20 20 2 1 17 15 31 33 22 21 2423 29 29 13 13 13 12 10 10 4 9 2 2 2 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 GM-520T/XU/UC 9 5 6 7 8 5 6 7 8 C D F A B E EXTERIOR SECTION PARTS LIST Mark No. Description Part No. 1 Screw(M3x8) CBA2011 2 Screw(M3x12) CBA2012 3 Screw BSZ30P050FTB * 4 Badge CAH1946 5 ••••• 6 Case CNB3199 7 Panel CNB3202 8 Panel CNB3206 9 Heat Sink CNR1828 10 Spacer CNV8256 11 Lighting Conductor CNV8692 12 Amp Unit CWH1287 13 Screw(M3x8) CBA2011 14 Pin Jack (CN111) CKB1068 15 Terminal (CN853) CKE1055 16 Terminal (CN855) CKE1057 17 Terminal (CN856) CKE1057 18 Socket (CN801) CKM1463 19 Holder CND2456 20 Terminal CND2458 21 Buss Bar CND2467 22 Buss Bar CND2468 23 Buss Bar CND2469 24 Buss Bar CND2470 25 Buss Bar CND2472 26 Buss Bar CND2729 27 Sub Heat Sink CNR1808 28 Sub Heat Sink CNR1810 29 Screw PPZ30P100FSN 30 Screw PPZ30P100FTB 31 Terminal (CN850) VNF1084 32 Screw PPZ30P100FTB > 33 Fuse (FU100, FU101) (30A) CEK1330 34 Screw BMZ40P200FTB * 35 Seal CAN3984 36 Holder CNV8522 37 Nut NB40FTB 38 Washer WB40FTB 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 GM-520T/XU/UC 10 1 2 3 4 1 2 3 4 C D F A B E 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 SCHEMATIC DIAGRAM(GUIDE PAGE) A-a A-b A-a A-b A-b A-a Large size SCH diagram Guide page Detailed page Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". A-a A Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← 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. Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. NOTE : Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. BASS BOOST GAIN BASS BOOST GAIN 0dB 0dB +18.5dBs (BB ON INPUT MAX) 0dB -1.7dB ~ -32.1dB 0dB or +12dB or +6dB +18.3dBs -13.8dBs -1.8d +18.3dBs 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 GM-520T/XU/UC 11 5 6 7 8 5 6 7 8 C D F A B E A-b A DTC643TU DTC643TU 47K 47K 47K 47K 8R2K 8R2K A AMP UNIT omponent parts indicates ctor of the part. sure to use parts of > > BASS BOOST BASS BOOST 0dB or +12dB or +6dB -1.8dBs -3.1dBs +38.5dBs 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 GM-520T/XU/UC 12 1 2 3 4 1 2 3 4 C D F A B E A-a A-b A-a A-a A-b 1 Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← 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. Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. NOTE : Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. BASS BOOST GAIN BASS BOOST GAIN 0dB 0dB +18.5dBs (BB ON INPUT MAX) 0dB -1.7dB ~ -32.1dB 0dB or +12dB or +6dB +18.3dBs -13.8dBs -1.8dBs +18.3dBs 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 GM-520T/XU/UC 13 5 6 7 8 5 6 7 8 C D F A B E A-a A-b A-a A-a A-b 2 3 4 BASS BOOST GAIN 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 GM-520T/XU/UC 14 1 2 3 4 1 2 3 4 C D F A B E A-a A-b A-b 1 DTC643TU DTC643TU 47K 47K 47K 47K A AMP UNIT 8dBs -3.1dBs +38.5dBs 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 GM-520T/XU/UC 15 5 6 7 8 5 6 7 8 C D F A B E A-a A-b A-b 2 3 4 47K 47K 8R2K 8R2K > > 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 GM-520T/XU/UC 16 1 2 3 4 1 2 3 4 C D F A B E 4. PCB CONNECTION DIAGRAM 4.1 AMP UNIT Capacitor Connector P.C.Board Chip Part A A AMP UNIT SIDE B SIDE A NOTE FOR PCB DIAGRAMS 1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 BFC SPEAKER OUTPUT SPEAKER OUTPUT POWER SUPPLY 2 1 2 1 1 2 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 GM-520T/XU/UC 17 5 6 7 8 5 6 7 8 C D F A B E A SIDE A Lch Rch 3 2 1 LPF/OFF RCA IN BASS BOOST GAIN LPF SPEAKER LEBEL INPUT R+ L+ R- L- 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 GM-520T/XU/UC 18 1 2 3 4 1 2 3 4 C D F A B E A A AMP UNIT R+ L+ R- L- Lch Rch 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 GM-520T/XU/UC 19 5 6 7 8 5 6 7 8 C D F A B E A SIDE B 1 1 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 GM-520T/XU/UC 20 1 2 3 4 1 2 3 4 C D F A B E 5. ELECTRICAL PARTS LIST NOTE: • Parts whose parts numbers are omitted are subject to being not supplied. • The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... • 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. • Meaning of the figures and others in the parentheses in the parts list. Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V Circuit Symbol and No. Part No. A Unit Number: CWH1287 Unit Name : Amp Unit MISCELLANEOUS IC 111 (B,293,51) IC NJM2068MD IC 112 (B,274,78) IC NJM2068MD IC 141 (B,283,103) IC NJM4558MD IC 171 (B,286,186) IC NJM4558MD IC 172 (B,296,183) IC NJM4558MD IC 651 (A,168,96) IC PA2027A IC 901 (B,158,64) IC UPC494GS Q 201 (B,249,137) Transistor DTC643TU Q 202 (B,252,134) Transistor DTC643TU Q 203 (B,251,128) Transistor DTA124EU Q 551 (B,220,87) Transistor 2SA1163 Q 552 (B,219,137) Transistor 2SA1163 Q 553 (B,226,89) Transistor 2SA1163 Q 554 (B,214,140) Transistor 2SA1163 Q 555 (B,224,82) Transistor 2SC2713 Q 556 (B,217,128) Transistor 2SC2713 Q 557 (B,220,80) Transistor 2SC2713 Q 558 (B,211,132) Transistor 2SC2713 Q 559 (B,215,76) Transistor 2SC2713 Q 560 (B,208,147) Transistor 2SC2713 Q 561 (B,230,73) Transistor 2SA1163 Q 562 (B,241,154) Transistor 2SA1163 Q 563 (B,222,72) Transistor 2SC2713 Q 564 (B,222,151) Transistor 2SC2713 Q 565 (A,230,33) Transistor 2SD1684 Q 566 (A,219,200) Transistor 2SD1684 Q 571 (B,244,71) Transistor 2SC2713 Q 572 (B,218,121) Transistor 2SC2713 Q 581 (A,242,62) Transistor 2SC3421 Q 582 (A,240,163) Transistor 2SC3421 Q 583 (A,276,34) Transistor 2SC4388 Q 584 (A,250,199) Transistor 2SC4388 Q 585 (A,254,34) Transistor 2SC4388 Q 586 (A,228,199) Transistor 2SC4388 Q 587 (A,210,63) Transistor 2SA1358 Q 588 (A,209,154) Transistor 2SA1358 Q 589 (A,221,34) Transistor 2SA1673 Q 590 (A,173,199) Transistor 2SA1673 Q 591 (A,199,34) Transistor 2SA1673 Q 592 (A,195,199) Transistor 2SA1673 Q 660 (A,158,74) Transistor 2SB1243 Q 661 (B,153,107) Transistor 2SA1576A Q 662 (B,151,118) Transistor 2SC4081 Q 670 (B,268,110) Transistor 2SA1576A Q 671 (B,265,110) Transistor 2SC4081 Q 672 (B,267,102) Transistor 2SC4081 Q 673 (B,259,111) Transistor 2SC4081 Q 674 (B,262,94) Transistor 2SA1576A Q 691 (B,176,86) Transistor DTC114TU Q 692 (B,174,94) Transistor DTA114EU Q 931 (B,148,52) Transistor 2SD1766 Q 932 (B,154,41) Transistor 2SD1766 Q 933 (B,143,47) Transistor 2SB1188 Q 934 (B,145,35) Transistor 2SB1188 Q 941 (A,91,31) Transistor FKV550N Q 942 (A,136,31) Transistor FKV550N Q 943 (A,76,31) Transistor FKV550N Q 944 (A,121,31) Transistor FKV550N Q 945 (A,61,31) Transistor FKV550N Q 946 (A,106,31) Transistor FKV550N Q 951 (A,129,203) Transistor 2SD2395 Q 952 (A,109,203) Transistor 2SB1566 Q 981 (B,137,67) Transistor 2SA1576A Q 991 (B,140,83) Transistor 2SC4081 Q 992 (B,144,82) Transistor DTC114TU D 161 (A,306,66) Diode ERA15-02VH D 162 (A,291,86) Diode ERA15-02VH D 553 (B,211,74) Diode MA111 D 554 (B,232,146) Diode MA111 D 555 (B,209,74) Diode MA111 D 556 (B,234,145) Diode MA111 D 557 (B,247,71) Diode MA111 D 558 (B,226,121) Diode MA111 D 601 (B,247,117) LED FR1112H Circuit Symbol and No. 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 GM-520T/XU/UC 21 5 6 7 8 5 6 7 8 C D F A B E D 658 (B,165,33) Diode DAN202U D 661 (B,171,74) Diode MA111 D 664 (B,139,114) Diode UDZS7R5(B) D 665 (A,48,99) Diode RM4Z-LFJ4 D 670 (B,262,110) Diode MA111 D 681 (A,157,105) Diode ERA15-02VH D 682 (A,162,108) Diode ERA15-02VH D 951 (B,145,192) Diode UDZS16(B) D 952 (B,123,192) Diode UDZS16(B) D 957 (A,89,202) Diode FML22S D 958 (A,70,202) Diode FML22R D 991 (A,124,184) Diode ERA92-02VH D 992 (A,121,183) Diode ERA92-02VH D 993 (B,141,78) Diode MA111 L 601 (A,59,69) Choke Coil 50µH CTH1323 L 951 (A,69,163) Choke Coil 320µH CTH1326 L 952 (A,40,163) Choke Coil 320µH CTH1326 T 901 (A,100,83) Transformer CTT1122 TH901 (A,150,33) Thermistor CCX1065 TH902 (A,148,201) Thermistor CCX1065 TH903 (A,128,102) Thermistor CCX1064 S 151 (A,314,98) Switch(LPF/OFF) CSH1021 S 171 (A,314,178) Switch(BASS BOOST) CSH1029 S 901 (A,8,197) Switch(BFC) HSH-156 VR201 (A,310,151) Volume 10kΩ(A))(GAIN) CCS1241 >FU100 (A,19,42) Fuse 30A CEK1330 >FU101 (A,19,65) Fuse 30A CEK1330 AR101 (B,315,78) Surge Protector CSA30-201N AR102 (B,309,89) Surge Protector CSA30-201N RESISTORS R 111 (B,295,69) RS1/16S471J R 112 (B,283,88) RS1/16S471J R 113 (B,295,59) RS1/16S223J R 114 (B,275,85) RS1/16S223J R 117 (B,291,58) RS1/16S102J R 118 (B,270,79) RS1/16S102J R 121 (B,296,43) 10kΩ CCN1152 R 122 (B,273,70) 10kΩ CCN1152 R 123 (B,295,41) 10kΩ CCN1152 R 125 (B,292,41) 10kΩ CCN1152 R 126 (B,286,80) 10kΩ CCN1152 R 127 (B,291,61) 10kΩ CCN1152 R 131 (B,275,67) 10kΩ CCN1152 R 134 (B,276,70) 10kΩ CCN1152 R 152 (B,288,97) RS1/16S103J R 154 (B,286,97) RS1/16S103J R 157 (B,283,113) RS1/16S103J R 159 (B,281,113) RS1/16S103J R 171 (B,284,181) RS1/16S222J R 172 (B,294,177) RS1/16S222J R 173 (B,286,176) RS1/16S101J R 174 (B,298,177) RS1/16S182J R 175 (B,288,181) RS1/16S182J R 176 (B,301,180) RS1/16S221J R 177 (B,316,178) RS1/16S121J R 178 (B,301,182) RS1/16S132J R 179 (B,316,182) RS1/16S122J R 180 (B,301,183) RS1/16S104J Circuit Symbol and No. Part No. R 181 (B,318,182) RS1/16S104J R 182 (B,293,188) RS1/16S273J R 184 (B,300,189) RS1/16S331J R 185 (B,287,193) RS1/16S331J R 189 (B,283,195) RS1/16S273J R 198 (B,280,97) RS1/16S0R0J R 201 (B,249,140) RS1/16S0R0J R 202 (B,252,131) RS1/16S0R0J R 203 (B,285,173) RS1/16S560J R 204 (B,297,174) RS1/16S560J R 206 (B,267,165) RS1/16S222J R 207 (B,273,161) RS1/16S222J R 505 (B,260,35) RS1/16S473J R 506 (B,265,199) RS1/16S473J R 507 (B,237,35) RS1/16S473J R 508 (B,242,199) RS1/16S473J R 509 (B,248,77) RS1/16S564J R 510 (B,225,123) RS1/16S564J R 511 (B,241,72) RS1/16S473J R 512 (B,222,122) RS1/16S473J R 513 (A,12,201) RD1/2PM100J R 514 (A,26,140) RD1/2PM100J R 551 (B,229,40) RS1/16S182J R 552 (B,221,194) RS1/16S182J R 555 (B,236,87) RS1/16S103J R 556 (B,228,133) RS1/16S103J R 557 (B,236,89) RS1/16S473J R 558 (B,225,130) RS1/16S473J R 559 (B,231,89) RS1/16S331J R 560 (B,225,140) RS1/16S331J R 561 (B,233,89) RS1/16S331J R 562 (B,225,142) RS1/16S331J R 563 (B,221,84) RS1/16S681J R 564 (B,216,136) RS1/16S681J R 565 (B,211,86) RS1/16S361J R 566 (B,226,126) RS1/16S361J R 567 (B,209,86) RS1/16S433J R 568 (B,222,126) RS1/16S433J R 569 (B,211,79) RS1/16S681J R 570 (B,209,143) RS1/16S681J R 571 (B,235,72) RS1/16S223J R 572 (B,228,151) RS1/16S223J R 573 (B,231,40) RS1/16S390J R 574 (B,219,194) RS1/16S390J R 575 (A,233,70) RD1/4PU101J R 576 (A,234,154) RD1/4PU101J R 577 (B,221,65) RS1/16S681J R 578 (B,217,152) RS1/16S681J R 579 (B,226,71) RS1/16S181J R 580 (B,221,144) RS1/16S181J R 581 (B,234,67) RS1/16S100J R 582 (B,240,158) RS1/16S100J R 583 (B,219,66) RS1/16S100J R 584 (B,217,150) RS1/16S100J R 585 (A,281,31) RD1/2PM100J R 586 (A,245,202) RD1/2PM100J R 587 (A,258,31) RD1/2PM100J R 588 (A,224,202) RD1/2PM100J R 589 (B,238,30) RS1/16S221J R 590 (B,213,205) RS1/16S221J Circuit Symbol and No. 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 GM-520T/XU/UC 22 1 2 3 4 1 2 3 4 C D F A B E R 591 (A,204,31) RD1/2PM100J R 592 (A,190,202) RD1/2PM100J R 593 (A,225,31) RD1/2PM100J R 594 (A,168,202) RD1/2PM100J R 595 (A,265,51) 0.1Ω CCN1155 R 596 (A,261,192) 0.1Ω CCN1155 R 597 (A,243,51) 0.1Ω CCN1155 R 598 (A,240,192) 0.1Ω CCN1155 R 599 (A,210,42) 0.1Ω CCN1155 R 600 (A,184,183) 0.1Ω CCN1155 R 601 (A,188,42) 0.1Ω CCN1155 R 602 (A,206,183) 0.1Ω CCN1155 R 621 (A,168,67) RD1/4PU101J R 622 (A,164,72) RD1/4PU472J R 623 (B,175,83) RS1/16S563J R 624 (B,150,82) RS1/16S221J R 625 (A,154,85) RD1/4PU152J R 630 (A,163,83) RD1/4PU271J R 631 (A,161,77) RD1/4PU471J R 632 (B,162,115) RS1/16S223J R 633 (B,170,103) RS1/16S223J R 634 (B,162,113) RS1/16S223J R 640 (B,156,99) RS1/16S472J R 641 (B,149,106) RS1/16S822J R 642 (B,136,107) RS1/16S822J R 644 (B,153,103) RS1/16S103J R 645 (B,150,115) RS1/16S222J R 646 (B,150,113) RS1/16S472J R 647 (B,145,114) RS1/16S103J R 648 (B,144,116) RS1/16S103J R 649 (B,142,119) RS1/16S473J R 650 (A,44,79) RD1/4PU222J R 666 (B,39,76) RS1/16S1R0J R 670 (B,270,115) RS1/16S104J R 671 (B,267,114) RS1/16S472J R 672 (A,263,104) RD1/4PU103J R 673 (B,268,96) RS1/16S562J R 674 (B,253,110) RS1/16S472J R 675 (B,251,110) RS1/16S222J R 676 (A,265,97) RD1/4PU221J R 831 (A,304,63) RD1/4PU683J R 832 (A,307,62) RD1/4PU683J R 901 (B,140,62) RS1/16S124J R 921 (B,139,46) RS1/16S472J R 922 (B,139,42) RS1/16S472J R 923 (A,147,47) RD1/4PU332J R 924 (A,158,31) RD1/4PU332J R 931 (A,95,38) RD1/2PM121J R 932 (A,141,31) RD1/2PM121J R 933 (A,80,38) RD1/2PM121J R 934 (A,125,38) RD1/2PM121J R 935 (A,65,38) RD1/2PM121J R 936 (A,111,38) RD1/2PM121J R 941 (A,72,65) RD1/2PM220J R 942 (A,124,54) RD1/2PM220J R 951 (A,139,197) RD1/4PU103J R 952 (A,112,190) RD1/4PU103J R 953 (A,142,198) RD1/2PM470J R 954 (A,118,201) RD1/2PM470J R 961 (A,115,109) RD1/2PM220J Circuit Symbol and No. Part No. R 966 (B,126,74) RS1/16S153J R 970 (A,164,199) RD1/2PM182J R 973 (B,151,60) RS1/16S103J R 974 (B,162,39) RS1/16S472J R 975 (B,162,42) RS1/16S472J R 976 (B,162,41) RS1/16S472J R 977 (B,161,34) RS1/16S272J R 978 (B,168,35) RS1/16S272J R 979 (B,168,38) RS1/16S272J R 980 (B,141,65) RS1/16S105J R 981 (B,148,74) RS1/16S153J R 982 (B,146,70) RS1/16S102J R 983 (B,142,73) RS1/16S473J R 984 (B,140,73) RS1/16S202J R 985 (B,142,68) RS1/16S101J R 986 (B,140,68) RS1/16S223J R 987 (B,132,85) RS1/16S103J R 991 (A,139,185) RD1/2PM391J R 992 (A,125,180) RD1/2PM391J R 993 (B,138,79) RS1/16S222J R 998 (B,269,121) RS1/16S102J CAPACITORS C 111 (B,297,62) CKSRYB471K50 C 112 (B,283,86) CKSRYB471K50 C 113 (A,299,61) CEAT100M50 C 114 (A,279,89) CEAT100M50 C 121 (A,284,68) CFTNA223J50 C 122 (A,284,72) CFTNA223J50 C 123 (B,289,61) CCSRCH470J50 C 124 (B,286,78) CCSRCH470J50 C 125 (A,286,63) CFTNA103J50 C 126 (A,283,76) CFTNA103J50 C 127 (B,292,43) CCSRCH470J50 C 128 (B,273,72) CCSRCH470J50 C 151 (A,283,117) CFTNA274J50 C 152 (A,303,91) CFTNA274J50 C 153 (A,287,102) CFTNA154J50 C 154 (A,301,97) CFTNA154J50 C 171 (A,289,173) CFTNA273J50 C 172 (A,300,174) CFTNA273J50 C 173 (A,310,202) CEANP4R7M50 C 181 (A,298,200) CFTNA224J50 C 182 (A,300,194) CFTNA224J50 C 184 (A,315,199) CEANP4R7M50 C 551 (A,239,84) CEAT101M16 C 552 (A,232,136) CEAT101M16 C 553 (B,236,90) CCSRCH680J50 C 554 (B,227,130) CCSRCH680J50 C 555 (B,218,84) CKSRYB471K50 C 556 (B,212,136) CKSRYB471K50 C 559 (A,210,91) CEAT221M10 C 560 (A,229,125) CEAT221M10 C 561 (B,208,86) CCSRCH150J50 C 562 (B,222,127) CCSRCH150J50 C 563 (B,228,70) CCSRCH470J50 C 564 (B,244,158) CCSRCH470J50 C 565 (A,230,65) CFTNA223J50 C 566 (A,218,157) CFTNA223J50 Circuit Symbol and No. 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 GM-520T/XU/UC 23 5 6 7 8 5 6 7 8 C D F A B E C 567 (A,38,201) CFTNA333J50 C 568 (A,26,155) CFTNA333J50 C 569 (A,31,203) CQHA102J2A C 570 (A,26,144) CQHA102J2A C 571 (B,238,67) CCSRCH220J50 C 572 (B,244,161) CCSRCH220J50 C 573 (B,216,66) CCSRCH220J50 C 574 (B,214,151) CCSRCH220J50 C 575 (B,239,63) CCSRCH220J50 C 576 (B,244,163) CCSRCH220J50 C 577 (B,218,63) CCSRCH220J50 C 578 (B,213,153) CCSRCH220J50 C 581 (A,279,44) CFTNA103J50 C 582 (A,268,195) CFTNA103J50 C 650 (A,136,86) CEAT220M25 C 651 (A,174,77) CEAT471M16 C 652 (A,171,114) CFTNA103J50 C 653 (A,158,117) CFTNA103J50 C 671 (A,175,102) CEAT101M16 C 672 (A,171,118) CFTNA103J50 C 673 (A,143,109) CEAT100M50 C 674 (A,141,103) CEAT100M50 C 675 (A,166,101) CFTNA103J50 C 676 (A,133,119) CFTNA103J50 C 677 (A,25,86) CFTNA224J50 C 681 (A,271,118) CEANP221M10 C 691 (A,178,94) CEAT220M25 C 831 (A,311,38) CEAT100M50 C 832 (A,301,38) CEAT100M50 C 903 (A,149,67) CEAT2R2M50 C 941 (A,66,98) 3900µF/16V CCH1644(P35) C 942 (A,67,81) 3900µF/16V CCH1644(P35) C 943 (A,70,50) CQHA472J2A C 944 (A,129,49) CQHA472J2A C 951 (A,150,193) CQHA102J2A C 952 (A,123,199) CQHA102J2A C 953 (A,157,194) CEAT470M16 C 954 (A,128,191) CEAT470M16 C 955 (A,134,191) CEAT470M25 C 956 (A,114,195) CEAT470M25 C 957 (A,62,132) 2200µF/50V CCH1647(P35) C 958 (A,42,132) 2200µF/50V CCH1647(P35) C 959 (A,62,153) 2200µF/50V CCH1647(P35) C 960 (A,42,152) 2200µF/50V CCH1647(P35) C 962 (A,109,122) CQHA102J2A C 970 (A,172,61) CFTNA103J50 C 971 (A,132,64) CFTNA564J50 C 972 (A,167,64) CEAT101M16 C 973 (A,151,74) CQHA102J2A C 974 (A,144,72) CEAT221M16 C 975 (A,132,74) CEANP470M16 C 980 (A,144,53) CFTNA103J50 C 991 (A,145,179) CEAT471M50(P45) C 992 (A,120,177) CEAT471M50(P45) C 993 (A,135,173) CQHA102J2A C 994 (A,130,173) CQHA102J2A C 999 (B,248,126) CKSRYB224K16 Circuit Symbol and No. 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 GM-520T/XU/UC 24 1 2 3 4 1 2 3 4 C D F A B E 6. ADJUSTMENT 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 GM-520T/XU/UC 25 5 6 7 8 5 6 7 8 C D F A B E 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY 1 - Removing the Case (Fig.1) - Removing the Amp Unit (Fig.2) Remove the six screws and then remove the Case. Fig.1 Fig.2 Case 1 1 1 1 1 Remove the fifteen screws and then remove the Amp Unit. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Amp Unit 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 GM-520T/XU/UC 26 1 2 3 4 1 2 3 4 C D F A B E 7.1.2 CONNECTOR FUNCTION DESCRIPTION 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 GM-520T/XU/UC 27 5 6 7 8 5 6 7 8 C D F A B E 8. OPERATIONS 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 GM-520T/XU/UC 28 1 2 3 4 1 2 3 4 C D F A B 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 GM-520T/XU/UC 29 5 6 7 8 5 6 7 8 C D F A B 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