samsung LN-T3253H no picture red standby light

[inline79]

Re: samsung LN-T3253H no picture red standby light

Sorry to bring up dead threads but I thought it useful as this is a top search thread for this TV model so we keep things in one place.

I had this TV given to me with the blinking red standby light.
The glue looked bad and there was some corrosion on the legs of RM801 RM810 so I went ahead and replaced them and scraped the glue away - no change.

Then I went ahead and replaced the 7 cold side caps as they are over 10yrs old. Still no luck.

The board is making a zzzt-zzzt-zzzt, suggesting something still not right on the output side. There is 300-400V at RM801 so I guess the PFC stage is OK. Everything checks out visually. I've scraped away most of the remaining glue. What next? Check semiconductors?

[budm]

Re: samsung LN-T3253H no picture red standby light

Lets us see the pictures of your board.

[inline79]

Re: samsung LN-T3253H no picture red standby light

Thanks for the reply. Here's some pics of my poor removal of glue. But I think I managed to get it away from all leads. I'm concerned that zener ZDTM851 (left of conn CM803 in the pic, had glue over all legs. I will try to test it.

I had a 5W 0.22R in my drawer so I used that instead. Should be Ok to replace the 1kW RM801.