Television and Home Theater

 working on a toshiba 42hp66 tv,that power on the shut off immediately red led stay's on checked power supply all chech out  than check y board from one of the fuses was blowen the other two fuse are good.

 I can just change the y board but I would like to repair the board.

 I know there are sereral transistors are bad need a little help.

I'm having some issues with my Mitsubishi WD-62825 DLP TV.  When I initially power the TV on, the green light blinks for a minute (normal) but the lamp never powers on.  The trouble code given is 3-4 which equals "lamp abnormality".

Withing the last 2 months I purchased an RCA 39" flatscreen tv model #39lb45rq. I have cable hooked up to it. It's been working fine until now. Now when the tv is turned on via the remote, The power light turns on on the tv but then after about 20 seconds or so the power light goes back to red. This red light does not turn off. The power to the screen never comes on. No sound, no nothing. Just that little light going on and then going to red. Has anyone else had this happen?