Trace-Elliot GP12SMX 300W Bass Amp Service Manual 电路图.pdf

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1、TRACE ELLIOT SERVICE MANUAL DATE : December 29, 1999 Product Code: N/A Model Number : GP12 300 WATT SMX SERIES This unit has used two issues of 300 watt MOSFET power board. The Bi-polar Bear and the 300 Mosfet Board Details for both are included in this manual. You should check which board you have

2、in your unit before attempting any repair. The Bi-polar board is marked PC00026 The MOSFET board is marked PC00083 Issued by: Trace Elliot Limited Blackwater Trading Estate The Causeway Maldon Essex England CM4 4GG RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 PARTS LIST FO

3、R GP12SM FRONT BOARD DescriptionPart CodeQtyWhere Used RESISTORS 15K WATT72-RM15K2R169 R170 1K WATT72-RM1K2R174 R176 1K3 WATT72-RM1K31R172 1K5 WATT72-RM1K5-.5W1R173 4K7 WATT72-RM4K71R171 6K8 WATT72-RM6K81R168 430R 2.5 WATT72-RWW430R-2.5W2R175 R177 CAPACITORS 10F 35V AXIAL72-C10-35VEA1C118 SEMI-CONDU

4、CTORS GREEN LED72-LED-GRN-REC1G RED LED72-LED-RED-TEG1O YELLOW LED72-LED-YEL-REC1Y BC549C TRANSISTOR72-TBC549C5TR24-28 OTHERS BULB73-FLUOR-TUBE2A SLIDER73-SLIDER-B100KC12SL1-12 10 WAY LINK72-LK-10W150TEG22 PLASTIC SPACER71-SPA-LED-TEG23G,O,Y Rik Daniels February 24, 1997 PARTS LIST FOR GP12SM MAIN P

5、CB DescriptionPart CodeQtyWhere Used RESISTORS 3M9 Watt72-RM3M93R1 R3 R5 47K Watt72-RM47K11R15 R17 R51 R55 R61 R64 R65 R68 R122 R123 R143 10K Watt72-RM10K23R4 R8 R12 R20 R32 R33 R40 R41 R43 R48 R49 R53 R57 R60 R63 R67 R116 R124 R125 R126 R129 R133 R138 1K Watt72-RM1K7R6 R7 R26 R34 R141 R145 R153 4K7

6、 Watt72-RM4K744R9 R28 R31 R36 R39 R80-115 R146 R163 R165 100K Watt72-RM100K13R10 R11 R69 R70 R71 R73 R75 R76 R120 R157 R158 R162 R19 220K Watt72-RM220K9R13 R14 R16 R21 R77 R127 R131 R135 R2 22K Watt72-RM22K10R18 R59 R119 R142 R151 R152 R154 R155 R160 R161 3K3 Watt72-RM3K31R23 3K8 Watt72-RM3K88R30 R3

7、8 R44 R52 R56 R58 R79 R167 1M Watt72-RM1M5R24 R25 R27 R35 R50 15K Watt72-RM15K2R42 R66 33K Watt72-RM33K14R45 R46 R117 R121 R128 R132 R139 R144 R148 R149 R150 R164 R166 R147 56K Watt72-RM56K2R72 R74 2M2 Watt72-RM2M22R118 R140 180K Watt72-RM180K2R156 R159 15R Watt72-RM15R1R22 470R 1 Watt72-RM470R-1WAT

8、T2R29 R37 220R Watt72-RM220R6R54 R62 R130 R134 R136 R137 560R Watt72-RM560R1R78 3K9 Watt72-RM3K91R47 LINKS72-RCZERO56 CAPACITORS PARTS LIST FOR PC00021 AH 250 REAR PCB DescriptionPart CodeQtyWhere Used RESISTORS ZERO OHM LINK72-RC-ZERO3 10K WATT72-RM10K6R3 R4 R5 R6 R10 R11 560R WATT72-RM560R2R12 R13

9、 22K WATT72-RM22K1R9 33K WATT72-RM33K1R7 100K WATT72-RM100K3R1 R2 R8 CAPACITORS 10F 63V RADIAL72-C10-63VER2C1 C2 1F 100V POLY BOX72-C1-100VP2C3 C4 SEMI-CONDUCTORS J112 TRANSISTOR72-FET-J-1121TR1 4558 OP-AMP72-IC-RC4558P1IC1 SOCKETS MONO JACK SOCKET73-SKT-JCKBNBG3SK2 SK3 SK4 MALE XLR73-XLR-PCB-M1SK5

10、STEREO JACK SOCKET73-SKT-JCKBBBG1SK1 3 WAY HEADER72-HEAD-3W-21PL3 10 WAY LINK72-LK-6W300TEG1PL4 3 WAY SOCKET72-SKT-IDC-3W1PL3 2 WAY HEADER72-HEAD-2W1PL2 SWITCHES / POTS PUSH SWITCH72-SW-F2UEE1SW1 B50K POT73-POT-50KB1RV1 Rik Daniels February 21, 1997 Important Notice To make the bi-polar 300 watt bas

11、s board reliable the following guidelines must be adhered to. When a board need to be serviced it is advisable to replace both the Output Transistors and TIP31 and TIP32. Also it is advisable to replace TR11 which is situated under the rear of the heatsink. The Output device should only be T2SC4468

12、and T2SA1695s The Drivers should be of the same manufacturer as each other to ensure stability. And TR11 is a T2N3904 as listed on the parts list. TR11 need to be completely covered in Heat Transfer Compound (HTC) This is to ensure that it keeps the unit biased correctly even when the unit gets hot.

13、 If TR11 is not covered then the fan can cool this component down and give the board a fault reading of temperature and provide and inappropriate bias. When adjusting the bias on the scope, make sure that the crossover distortion is just not visible. Too far beyond this point will over bias the unit. Use a Shake-proof washer under the pcb earth point to ensure a permanent connection and prevent crackling noises in the future. Paul Mathews Jan 2000-01-25 cd0086x4.sch-1 - Sat Dec 11 11:04:47 1999