SAMSUNG MOD TC9895TB WONT PWR ON

[bobo60]

hello,
i bought a used samsung mod tc9895tb tv the other nite. it worked fine that nite. the next day it would not pwr up. the red led on the front panel, near the infered recevier lens stays on all the time. (maybe in stand-by mode?) next to the red led it says, PWR?TIMER. i tried to pwr it on from the front panel and with the remote, and no go. whats up? is it stuck in sleeper mode? ty...bob

[jts1957]

Try searching for the User's Manual. It will contain a wealth of info on how the set is supposed to work, what the lights mean or don't mean, etc.

[Guest]

hi jst1957,

ive been looking online for a users maual, no luck so far. thanks for the info tho!...bob

[jts1957]

Found the following:

1) C951 = 4.7ufd/250V

2) Suggest changing these caps in standby power supply (near relay) 4.7mf at 250 volt, 1000 at 25 volt, check main cap 220? at 200.

3) Clicks, no power.
Check junction of cathodes, diodes D802/803 for 160Vdc , if there,
check the following resistors, R803, R804, R806, R807, check for 125volts
at pin 4 of Q801, it may be higher, if your horizontal sweep is not working!
Check pin 22 of IC501, MUST have 9vdc, scope pin 17 of IC501 for a
1.5VPP horizontal square wave drive pulse, check collector of Q401, horizontal driver for 73vdc and 185VPP horiz pulse, check base of Q402 for 12 VPP drive pulse. Check condition of Q402, maybe shorted!

[guest19]

Just wanted to know if anyone ever found a way to fix the problem because my tv is doing the same thing