Pioneer A-109 Amplifier Repair

Аватар автора
Технологический прогресс завтра
Fault Amplifier in protection mode all input selection LEDs flashing, Power supply voltages checked, V-BH minus 35 volt supply low at 1.2 volts, checked at the Emitter of Q452 2SA1837. D458 UDZ36B Surface mount 200 milliwatt zener diode defective. Replacing D458 restored correct operation.

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