Re: philips 42pfl8694h (8404h) startup problem

hi
thanks for the reply

unfortunately SDM pin doesn't activate anything, still same action in standby led ,blinking red led twice.

I give up searching for the fault, and unfortunately I didn't find any replacement card.

power board is working(when I jumpered 3.3vsb and ps-on pin, I can get 12v and 24v, 0v on BCKlight_ON , 5v on BCKlight_dim)

I will try to adapt a universal LCD board(lcd conversion board and a NT68676 controller board), but one thing I am not sure is...

hello friends,

tv has problem at startup procedure, when main power is on, tv tries to wakeup , after three times trial it turns into error(protection) mode and gives red led flashing twice.

what I have checked;
3.3v standby voltage is OK,
mainboard pulls the ps_ON pin to low(this happening three times) at this period, psu 12V becomes active, and I can see 1.2v 3.3v 5v on the mainboad at measuring points.

attached you will find the service manual and some photos

thank in advance for any suggestion,....

Re: New Members - please post your introductions here

hello everyone,

I am Zek, working and experienced in industrial automation,

glad to be here..