Appliance switches back on when placed on standby mode

Question

Panasonic SA-PM17

Stereo featuring 5 disc CD changer, cassette player, and AM/FM radio. Model number SA-PM17.

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Matthew Verrian @matthewverrian

Rep: 1

Postato: 19 apr 2024

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Appliance switches back on when placed on standby mode

Hi, appliance won't stay switched off when switched off via remote or standby switch on appliance. It turns off for a few seconds then switches back on withbthe welcome message again. Only way to stop it turning back on is at the wall

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bill @ruggb Rep: 4k 3 2 · Answer 1 · 2024-04-19T15:49:26-07:00

bill @ruggb

Rep: 4k

3

2

Postato: 19 apr 2024

Opzioni

This is the service manual.

This is the standby control circuit.

My first guess is the relay on the lower right is stuck, or the control circuit has a malfunction and is holding the relay closed.

Q575 turns it off/on and is controlled directly by the micro. Standby/SysV6 circuitry on the micro schematic sheet may also be involved.

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Panasonic SA-PM17

Appliance switches back on when placed on standby mode

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