Re: BenQ FP71E

I have just had the same fault on my BenQ 71E+ (ModelQ7C4).
The fault in my unit was caused by C712 (1000MF 10V) on the PSU board.
The cap manufacturer was Samicon (?) - part of the name was cut off.
Other markings on the cap are TK and 537C2(M).
There was another cap that was the same but measured OK on the ESR meter - but I changed it as well - to avoid future problems!
Cheers Gaz

Re: Samsung TV cycles On to Off

Wizard - See my reply #6 for the caps that were used.

Cheers, gaz

Re: Samsung TV cycles On to Off

The set was fixed with the replacement of the "Main" PCB - there are only two boards, PSU and Main. Toasty - it was painless! Thanks for your posts.

Gaz

Re: Samsung TV cycles On to Off

Toasty - The caps were a mixture of "Suntan" and "Samxon" brands. Thanks.

kc8adu - I have called a halt on the set and sent it to the Samsung hospital...
I will post a final diagnosis when I know.

Thanks to all,
gaz

Re: Samsung TV cycles On to Off

Hi jdre

Many thanks for taking the time to give your input on my problem.
I did omit to note in my original post that the first thing that I did was to go over the PSU board with a magnifying glass and solder iron which, of course, in my case did not fix the problem.

Gaz

The TV is a Model LA32R81BD 32" LCD.

After turn on from Standby it runs for about 5 mins then begins to cycle from On to Off - the red Standby Led flashes while in the Off state - No Pic or sound - but the Blue panel below the Samsung name is lit .

After reading previous posts on this problem I have replaced all electros on the power supply board - even though none were visibly suspect, they were all Sanwha brand.

I have disconnected the backlight inverter board from the Power board, but this has no effect on the fault.

I have directed...

Re: Fix for Benq FP737s 17" (Q7T3)

G'Day Folks.

Thanks to Davmax for initiating this thread and the fine work that he has done on the problem. I got one of these FP373's to repair and the problem was just the same as most others have found. One s/c 2SC5707 and o/c FP751 3A fuse.
After sourcing the replacement parts all was well again. I did however, find many "dry" solder joints on the Inverter transformers and on other parts. I wonder if these could precipitate the problem.

I am from Australia and if it will help, I found the...