27: ILO lcd V27DMBX no power issue fixed

[cadillacman]

another craigslist special. No power, no led, nothing.

Tore it down, caps are no name but none bulged. A good lookover of the power supply found a BROKEN solder joint at a leg of a transformer( see pics)

all joints of transformer were reflowed. STILL NO POWER. No standby 5v, nothing.

Replaced the little 22uf startup cap, fired right up, works great!

[ccannoe]

Re: 27: ILO lcd V27DMBX no power issue fixed

Hey Cadillac man, i have the same tv and same problem as the ilo v27dmbx you posted...you suggested replacing a 22mf starter cap and your problem was solved...i couldn't figure out exactly which one to replace as there are over 7 of them...i saw the pictures and i was not sure if it was of the model # stickers or the if it was the 22mf cap in the bottom of the picture with the stickers you were referencing as the bad cap. i replaced the one by the sticker and still not working...moved it around to other spots, and retried with no luck...wondering if maybe it is on the power board and not the main board. there are no visible swollen caps anywhere or bad solder joints...everything looks new. any help you could shine on my problem would be great! thanks in advance.

[budm]

Re: 27: ILO lcd V27DMBX no power issue fixed

I think he is talking about C36 the startup cap for the 5v standby power supply on the power supply board.

[ccannoe]

Re: 27: ILO lcd V27DMBX no power issue fixed

thanks for the reply, i changed that one now, but still no dice.

[cadillacman]

Re: 27: ILO lcd V27DMBX no power issue fixed

sorry for the late reply, i dont get a chance to surf the net much these days.

IIRC c36 was my magic fix. A proper fix would have been to replace all the caps but in my case, that got her going.

[CraigR]

Re: 27: ILO lcd V27DMBX no power issue fixed

I know this is old but I have the same TV and problem and I see C36 seems to be the small brown cap, is this correct?? I circled it in the pic.

[boozy79]

Re: 27: ILO lcd V27DMBX no power issue fixed

OK, im runnin the 32' version of this same set, initially dead, changed powersupply, comes up to blue screen for a second and goes off, but led light on front stays green, changed mainboard DTV3218ATM, now when ya press power it comes out of standby for a second and light turns red again, no start at all, put original board back in, get original problem, ordered another main board , and i get the 2nd problem again, red light no screen at all... Dont think 2 new boards are gonna be screwed up the same way, scratchin my head on this one...