Author Topic: Technics SU-Z55 Amplifier - No output.  (Read 2476 times)

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Turnip

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Technics SU-Z55 Amplifier - No output.
« on: January 27, 2016,07:03:39 »
Hi Folks,

Got one in where display works but no sound output on either channel with supply voltages to the STK2038 seeming normal and nothing fused or burned out. Note there's a protection chip AN7072 but can't quite see what it does.
Wonder if it's a common problem ? - Attach schematic - Chris

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