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Страница 5: ...0R R6 6k2 R5 3k3 R4 3k3 R3 10k R2 3k3 R1 3k3 IC2 NE5534 5 6 7 IC1B NE5532 3 2 1 8 4 IC1A NE5532 RV2 1k C11 100u R10 10k C8 10u C10 100p D2 IN4148 D1 IN4148 ZD1 9v1 ZD2 9v1 TR10 BC184L TR9 BC214L D3 IN...
Страница 6: ...4 10k R43 220R R42 6k2 R41 3k3 R40 3k3 R39 10k R38 3k3 R37 3k3 IC4 NE5534 RV4 1k C34 100u R46 10k C29 10u C32 100p D11 IN4148 D10 IN4148 ZD3 9v1 ZD4 9v1 TR20 BC184L TR9 BC214L D12 IN4148 D13 IN4148 TR...
Страница 7: ...70k R96 470k R98 470k R101 470k R97 10M R100 10M C47 470n C48 470n ZD7 12v ZD8 12v D26 IN4148 D27 IN4148 D29 IN4148 15 15 15 C44 10u D22 IN4148 D24 IN4148 D21 IN4148 D20 IN4148 ZD6 12v ZD5 12v C43 470...
Страница 8: ...A IN4148 C31A 100uF VR2A 1k R65A 150R R64A 150R C30A 100uF C29A 100uF ZD8A 15V ZD9A 15V GND GND C14A 100uF R22A 4k7 R17A 3k3 5W R21A 1k5 C18A 100uF C15A 100uF ZD7A 30V ZD6A 15V ZD4A 30V ZD5A 15V C17A...
Страница 9: ...8B BC214L ZD11B 12V ZD10B 12V D2B IN4148 D1B IN4148 C31B 100uF VR2B 1k R65B 150R R64B 150R C30B 100uF C29B 100uF ZD8B 10V ZD9B 10V GND GND C14B 100uF R22B 4k7 R17B 4k7 R21B 1k5 C18B 100uF C15B 100uF Z...
Страница 10: ...0R R34 560R R35 560R G S D TR13 J162 G S D TR14 J162 G S D TR15 J162 G S D TR16 J162 G S D TR9 J162 G S D TR10 J162 G S D TR11 J162 G S D TR12 J162 TR5 K1058 TR6 K1058 TR7 K1058 TR8 K1058 TR1 K1058 TR...
Страница 11: ...2k2 R2B 2k2 R3B 2k2 R4B 2k2 R5B 10R R6B 10R R8B 10R R7B 10R L1B C5B 220n C6B 100n C6A 100n C5A 220n L1A R7A 10R R8A 10R R6A 10R R5A 10R R4A 2k2 R3A 2k2 R2A 2k2 R1A 2k2 C4A 9000uF C3A 9000uF C2A 9000uF...
Страница 12: ...ZD1A 12v ZD2A 12v D2A IN4148 D3A IN4148 D5A IN4148 D4A IN4148 C27B 10u 15 15 TR17A BC214L C28A 100p ZD3A 6V8 15 Vin 1 GND 2 15V 3 IC2 MC7815T Vin 2 GND 1 15V 3 IC3 MC7915T D1 IN4004 D2 IN4004 D3 IN40...
Страница 13: ...lel from IC2 pin 3 to 0V as per figure 1 7 Fit 2 x 1N4148 diodes solder side in reverse parallel from IC4 pin 3 to 0V as per figure 1 8 Remove any capacitors fitted on the solder side of the PCB that...
Страница 14: ...R18 R21 R54 R57 1k8 from the PCB and replace with 5k1 1 4W 3 Remove ZD1 ZD2 ZD3 ZD4 12V from the PCB and replace with 9V1 1 2W 4 Fit 390k 1 4W resistor solder side between D40 Cathode and D41 Anode a...
Страница 15: ...igure 3 Modification to P1040 Daughter Board 1 Remove R18 R21 1k8 from the PCB and replace with 5k1 1 4W 2 Fit 390k 1 4W resistor solder side between D1 Cathode and D2 Anode as per figure 4 Modificati...
Страница 16: ...54 R57 1k8 from the PCB and replace with 5k1 1 4W 3 Remove ZD1 ZD2 ZD3 ZD4 12V from the PCB and replace with 9V1 1 2W 4 Fit 390k 1 4W resistor between Component Network diodes as per figure 5 5 Fit 39...
Страница 17: ...capacitors and 390k resistors as per figure 6 5 Remove the fixing screws for the K1058 output transistors and remove the insulating pad between the transistor and the heatsink 6 Rub down the heatsink...
Страница 18: ...if faulty or show any signs of having over heated Final Checks Once the amplifier has been modified and repaired it is always possible that there remains one or more components which have been weaken...
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