I have a Samsung 2232GW monitor, it's ten years old and I love the display hence I don't want to replace it (can't really afford to either).
Some months ago it started to exhibit the well known power on issues so I replaced all of the electrolytics (except for the 100uf 450v) with new, high quality, 105 degree electrolytics. Suffice to say that a number of the old caps were bulging, but not leaking.
All was well for a few months but power on problems have returned, a little different this time though as now after a few hours switched off and then powered on, the overall display will be dim but is particularly dark on the left side; it will rapidly flicker then blank out completely after a few seconds. If I leave it like this for a few minutes (blank display, power still on) then power off and on again all is well. So there's a warm up required.
I've taken it apart again, checked the ESR of all of the new caps (they are fine and physically they look fine too) and the old 100uf 450v electrolytic also has good ESR. Not sure if it's worth replacing that (I'd need to order one).
Any thoughts please as to the cause of this latest fault? (note: this only started a few days ago).
Thanks
Edit: Here's a photo of the board that I found online:
http://www.ccfloffer.com/bookpic/01/..._IP-45130B.jpg
Model no: IP-45130B
I'm tempted just to buy a new board from China, but is it possible that the power board itself isn't at fault?
Some months ago it started to exhibit the well known power on issues so I replaced all of the electrolytics (except for the 100uf 450v) with new, high quality, 105 degree electrolytics. Suffice to say that a number of the old caps were bulging, but not leaking.
All was well for a few months but power on problems have returned, a little different this time though as now after a few hours switched off and then powered on, the overall display will be dim but is particularly dark on the left side; it will rapidly flicker then blank out completely after a few seconds. If I leave it like this for a few minutes (blank display, power still on) then power off and on again all is well. So there's a warm up required.
I've taken it apart again, checked the ESR of all of the new caps (they are fine and physically they look fine too) and the old 100uf 450v electrolytic also has good ESR. Not sure if it's worth replacing that (I'd need to order one).
Any thoughts please as to the cause of this latest fault? (note: this only started a few days ago).
Thanks
Edit: Here's a photo of the board that I found online:
http://www.ccfloffer.com/bookpic/01/..._IP-45130B.jpg
Model no: IP-45130B
I'm tempted just to buy a new board from China, but is it possible that the power board itself isn't at fault?
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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