Samsung 912N Problem

[LAS]

Re: Samsung 912N Problem

Hi Retiredcaps,

I was hoping to hear from you. The inverters check out ok. Am I able to substitute an 1157 auto bulb in place of a ccfl?

I'm thinking this monitor may have been dropped, as the base is broken where it is secured to the monitor with the four screws.

[retiredcaps]

Re: Samsung 912N Problem

After six months of searching, I have finally come across another dead monitor - on Craigslist.

I also have dry spells where there are no monitors and then I get the odd batch. It is hard to justify buying better tools with nothing to fix!

And then, when I plug in the video cord to my PC, it goes into 'two seconds to black' mode.

I can post logic board photos if necessary.

1) 2 seconds to black can be

a) bad caps (Samxon GF are a known bad series)
b) bad ccfls
c) bad ccfl wiring
d) bad inverter transfomer

2) What is the part number of T602 and T603?

3) More about the subject can be found starting with post#19 at

https://www.badcaps.net/forum/showthread.php?t=10419

4) Your logic board is likely working since the power LED is on and you can see the display briefly.

5) Great photos.

6) Check b), c), and d) first before replacing any caps.

[LAS]

Hi BadCaps folks,

After six months of searching, I have finally come across another dead monitor - on Craigslist. The good news is that the monitor was free, and the other news is that it doesn't look like a straightforward cap replacement project.

On this particular 912N, if I plug in the power cord only, I get the shifting box that says Check Signal - only the box borders are not as well defined as I would expect. And then, when I plug in the video cord to my PC, it goes into 'two seconds to black' mode.

I have taken a cursory look at both boards, and saw nothing out of the ordinary, including the always-suspect Samxon caps. I have tried reseating the ribbon cables, and also tried a different VGA cord. Power board photos are below; I can post logic board photos if necessary.

It is my hope that these symptoms sound familiar to someone; my backup plan is to change the caps and hope for the best.

LAS.