Forumsee logo
Forumsee » Consumer Electronics » TVs » Read message
RSS: Subscribe to RSS

Sanyo DP42740 won't turn on, but has power

Troubleshooting TVs and Video Sources - Badcaps Forums - www.badcaps.net
My Sanyo DP42740 Plasma won't turn on anymore. The power light nor the screen will even light up. not even an error code. I removed the back of the TV, and tested a few voltages and fuses and everything so far seems to be about right. I haven't been able to track down a service manual for this model though. I tried disconnecting different wires from the power board, and the only difference I was able to make was when I disconnect the SS board, on the right, from the power board the TV clicks on and the power led on the front of the TV will come on for a few seconds, then off for a few, then on again, etc. still no picture, audio, or even a dim light though. Could his mean the SS board is bad? I read in a few forums where others with similar symptoms had replaced the main board and all was cured. I bought a digital main and installed it, but no change. There's also a guy with a you tube video that said the same thing, with the same model TV, but his main board and mine are different. His is all one piece, but mine is half analog and half digital connected by a row of pins. Any help or comments would be great. Thanks!
Date: Jul 25, 2013   


Last videos:

Sony 4K display issues
Sony 4K display issues
Hitachi LE55A6R9A - No backlight
Hitachi LE55A6R9A - No backlight
Philips 42PFP5332/10 Screen Flickering Problem how to repair?
Philips 42PFP5332/10 Screen Flickering Problem how to repair?
Philips 42PFP5332/10 Screen Flickering Problem how to repair?
Philips 42PFP5332/10 Screen Flickering Problem how to repair?
Panasonic AG-1980 won't play a tape... it just ejects it
Panasonic AG-1980 won't play a tape... it just ejects it
Legion on FX
Legion on FX
Gift ideas for men!
Gift ideas for men!
Chance on Hulu, with Hugh Laurie.
Chance on Hulu, with Hugh Laurie.

Cars ·
Travel ·
Pets ·
production-frontend