Aoc Lm 725

[fez]

Hi all im new to this site, and i have a LCD monitor AOC LM 725 which has dark screen and the green led blinking on and off, if i look at screen up close it lights every second in time with the led. There are no bulging or leaking caps, should i replace all caps or could something else be the cause, any help much appreciated.

Great site by the way. fez

[fez]

Re: Aoc Lm 725

Sorry i have just read a post by khar so i will try some advice given on that post, although any extra help will be appreciated. thanks

[Bobdee]

Re: Aoc Lm 725

Sorry i have just read a post by khar so i will try some advice given on that post, although any extra help will be appreciated. thanks

Hello Fez
I think a recap is called for first (just a suggestion) the on off LED is a bit diffrent to Kharrs
I dont like suggesting recap when all the caps on board look good, because you may recap and still not fix problem, but in this case I think its called for
In Kharrs thread, posting #31 he tells you the 7 caps that he renewed, it is best if you add the other small one that was left out,the one by the PWM controller
Also when you got 5 minutes post pictures of top and bottom of your board, this will help Members to help you
Bob

[fez]

Re: Aoc Lm 725

Hello Fez
I think a recap is called for first (just a suggestion) the on off LED is a bit diffrent to Kharrs
I dont like suggesting recap when all the caps on board look good, because you may recap and still not fix problem, but in this case I think its called for
In Kharrs thread, posting #31 he tells you the 7 caps that he renewed, it is best if you add the other small one that was left out,the one by the PWM controller
Also when you got 5 minutes post pictures of top and bottom of your board, this will help Members to help you
Bob

Hi Bobdee, sorry for late reply been babysitting sisters house while she was on holiday, thanks for your reply i will as you say replace caps and you say there is one by the controller, is that the controller underneath the board, im sorry im a bit of a novice about boards but i am willing to learn.
Thanks again fez

[Bobdee]

Re: Aoc Lm 725

Hi Bobdee, sorry for late reply been babysitting sisters house while she was on holiday, thanks for your reply i will as you say replace caps and you say there is one by the controller, is that the controller underneath the board, im sorry im a bit of a novice about boards but i am willing to learn.
Thanks again fez

Hello Again
If you look at Kharrs first picture, there is a large capacitor laying on its side in the bottom right hand corner, above that is a PWM controller (8 pin IC) and above that is the small cap leaning to its side, thats the one
Good replacements are required, panasonic FCs or FMs are readily recommended in this forum
Bob

[fez]

Re: Aoc Lm 725

Hi Bob thanks for the info from picture i will obtain the caps and let you know how i get on.
Thanks again fez

[fez]

Re: Aoc Lm 725

Hello Fez
I think a recap is called for first (just a suggestion) the on off LED is a bit diffrent to Kharrs
I dont like suggesting recap when all the caps on board look good, because you may recap and still not fix problem, but in this case I think its called for
In Kharrs thread, posting #31 he tells you the 7 caps that he renewed, it is best if you add the other small one that was left out,the one by the PWM controller
Also when you got 5 minutes post pictures of top and bottom of your board, this will help Members to help you
Bob

I have replaced caps but still led is blinking and it sounds as if you can hear it through speakers. Also i can see backlight from inside the lcd going off and on in time with the led.Has anyone got any idea what else could be the cause. Thanks again for any help.
fez

[Krankshaft]

Re: Aoc Lm 725

How about some pics of the inverter board?