Panasonic Tv/ VHS combo, model# PVQ-2512

maverick · Joined: 13 Jan 2006 Posts: 26 Location: Paradise!

Hi, I have this unit and it shut off in a recent power outtage and never powered back on. The green status light on front comes on but when i press power I don't get anything. I checked the HOT and surrounding components and the power supply section but couldn't find any defective components. Could it be the flyback?

vtech · Joined: 08 May 2006 Posts: 1264 Location: USA

While there is always a possibility of a defective flyback, more than likely it is NOT. If the set failed during a storm/power surge, it is probably an issue with the power supply &/or syscon ckt--perhaps a relay driver txistor---do you hear a relay click? or some sort of component failure in secondary power supply. Need to tshoot further.

Guest · Posted: Wed Jun 14, 2006 11:20 am Post subject:

yes I can hear the relay engage and then disengage after a short instant when I press the power button.

maverick · Joined: 13 Jan 2006 Posts: 26 Location: Paradise!

yes I can hear the relay engage and then disengage after a short instant when I press the power button.

vtech · Joined: 08 May 2006 Posts: 1264 Location: USA

Ok, can't be sure, but sounds like either some type of short is pulling down on one of the supply lines, or perhaps HV shutt down circuit iis kicking in. Have to get a schematic to test & troubleshoot.

Based on experience with panasonic combos, I can tell you that HV circuit transistors are easily damaged during power surges.