Re: Please help with a Samsung 2233SW monitor.

I shopped around for CCFLs. It seem's that they are either quite costly or not costly if you buy from a China supplier.

Anybody has some experience or advice based on facts.

I don't mind paying more if it's worth doing so.

Re: Please help with a Samsung 2233SW monitor.

Thanks Budm,

I need some advice, should I replace all 4 CCFLS or is it a low risk gamble to leave the 3 good ones in place? The monitor is 6 years old.

Attached is a picture of one end of the bad CCFL. There's this ''hot filament'' (that would be the electrode) which look's abnormal......

Re: Please help with a Samsung 2233SW monitor.

I got the CCFLs out, they are bundle in pairs (2 X 2). One of them seems bad. It does light up but has this pinkish color.

I switch the CCFLs position on the transformer secondary's with the same result, still the same pink color.

But after cycling the ''on/off'' many times, the bad CCFL lit up ok and has the same white colour than the others CCFLs !

I'm testing it right now, it's been on for 10 minutes with no ''2 sec to black'' but I expect that it will eventually go bad. Reminds me...

Re: Please help with a Samsung 2233SW monitor.

Thanks for the replys,

I connected the CCFLs one by one while keeping the 3 other secondary outputs connected to a CFL. For one of the CCFL's the monitor will go 2 sec to black (2secTB). I guess that's the faulty one (wiring or lamp).

Just curious, for the 2secTB to kick in do you know if the system detects any load imbalance or does it take a absence of load on one of the secondary outputs. Hence I have all 13w CFLs but what if I had a mix of CFL's, 11w 14w etc.

Another question, does it...

Re: Please help with a Samsung 2233SW monitor.

Hello Brian D,
I have a 2233sw with the same PCB has your's. I am now about 100% sure it has a bad CCFL.

I checked the inverter impedance secondary and primary and they look ok; (off board)
Replace all the caps with quality caps (except the large one);
Checked the inverter output with CFL lamps (13w) and they all light up and stay on (picture included);

So my next step his to check the CCFL's. How did you proceed to confirm what CCFL was at fault? Tear down the screen and just take...

Re: New Members - please post your introductions here

Hi,

I am from Eastern Canada. Electronics has always been a hobby to me.

Fixing a Samsung monitor (2233sw) I ran accross the Badcaps website which provided very helpfull information.

So I decided to join the Badcaps community.