Denon PMA510AE Amplifier Repair

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Fault Amplifier in protection mode. Internal inspection confirmed that F902 T2.5 Amp power input protection fuse was blown, indicating a short circuit. Fuse replaced and checks made on the right channel output stage blown. Following components replaced. Q318 KTC3114A Q320 2SD2083 Q322 2SB1383 R350 & R352 0R22 5 Watt Emitter resistors D312 & D314 3.0 Volt 500 watt Zeners D316 & D312 1SS133M Diodes. Bias for each channel set to 10 millivolts. Amplifier fully tested working correctly.

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