Panasonic DVD - A300MU player when the city electricity voltage below 162V can not work normally, sometimes manifested as daytime work, but do not work at night troubleshooting method
The detection of the machine can not boot in city power lower than 162V normal work, while the measured power supply circuit of Q1101 e voltage does not change, but the B voltage with power reduction, check for sampling amplifier Q1101 bad performance.KALservice manual download site