Marantz PM44SE Amplifier Repair (With Audio Tutorial)
Вставка
- Опубліковано 7 вер 2024
- Fault
Amplifier not powering on.
Power input protection fuse blown, replaced T 1.6 Amp
Further checks mad an dry solder joints found on the Amplifier circuit board.
Dry joints re-flowed.
Output transistors checked right channel failure.
Original Toshiba Devices fitted, 2SC3182 & 2SA1265.
Speaker protection relay also replaced due to the age of the Amplifier.
24 V DC Coil DP/CO
User controls and switches cleaned with De-Oxit to ensure noise free operation.
Bias for each channel set to 14 millivolts.
Amplifier fully tested working correctly.