Stayıng In Stand-By Mode - VESTEL MB120 DS Service Manual

B. STAYING IN STAND-BY MODE
Problem: Staying in stand-by mode, no other operation
This problem indicates a short on Vcc voltages. Protect pin should be logic high while normal operation.
When there is a short circuit protect pin will be logic low. If you detect logic low on protect pin, unplug the
product set and control voltage points with a multimeter to find the shorted voltage to ground.
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