possibly lightning struck ?

[flamike]

got a couple possible lightning struck tvs,sanyo DP26670 and insignia NS LTDVD26-o9,neither have main voltage to big cap 60 volts ac instead of 120ac,replaced 2 EMI suppression capacitors and bridge rectifier and main board on sanyo with no luck same blinking red light,insignia light is steady blue any ideas ?

[tom66]

Re: possibly lightning struck ?

You are measuring main voltage incorrectly, you should measure with your meter on DC volts. Lightning damage can't cause that kind of failure.

[flamike]

Re: possibly lightning struck ?

hey I get same on dc,seems like ground is missing,or maybe im not doing it right

[tom66]

Re: possibly lightning struck ?

Positive on positive lead of cap, negative on negative lead of cap?

[budm]

Re: possibly lightning struck ?

OK, on the AC primary side, the negative leg of the large DC filter cap (the one with 250 or 450Vdc rating) is the circuit ground of the primary side.
The cold side (secondary side), the chassis is the circuit ground for the secondary circuit.

[flamike]

Re: possibly lightning struck ?

thanks,your right 169.9,was trying to use ground of power supply,either ac or dc