Re: Samsung 2232bw 2 seconds to black

Ok, I found an analog multimeter, very basic does dc and ac to 1000v. I resoldered the filter cap and tested, it got a steady 300v with just the power plugged in and not connected to the logic board. I tested the power pins for the 13v and 5v, all I got was 13v across both 13v and 5v pins.

Whats wierd is I tried turning it on and.... it came on. How long it will last I dont know, Im letting it sit here to see if anything happens. I will turn it on and off throughout the day, and see if I can get the problem to come back.
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Re: Samsung 2232bw 2 seconds to black

The pled dims when it goes black, when the monitor comes back on and shows the screen for 2 seconds it is bright again. It dims then brightens and repeats.

I recently recapped a samsung 2232bw, all the larger caps were bulging and so I replaced them and the smaller 47uf 50v etc. This samsung like others had the 3 820uf 25v in a series, not having the 820uf's I used 2 1000uf and 1 470uf 25v. The 2 capacitors on the inverter were also 820uf 25v, I used 1000uf 25v instead.

The monitor worked great for an entire day with no issues. Today I go to turn it on and I get the 2 seconds to black, the pled stays on but dims when the screen turns black.

I dont think the transformer is bad, but I dont have a multimeter to test anything....

Re: Hanns G HG281D Blacklight fails after warming up.

So I won an auction for another hg281d on ebay, it arrived today. I was able to use its parts to figure out what the issue is.

It seems I messed up something on my logic board, which is causing the screen to quickly flash auto adjust over and over when you hit the menu button. The new monitor had the same symptoms as my old. After a complete recap, and being very careful with the logic board, that monitor works 100%.

So I now have one monitor thats 100% and the other works just fine but doesnt have...

Re: Hanns-G HG281D, LCD Monitor no power



Im sure he will tell you the same thing he told me above

On that note I believe c603,c606 and c707 on the psu were ones people had the most trouble with. Maybe start there?

I am not an expert like others on here, just what I have read when trying to fix mine.

Good luck!...

Re: Hanns G HG281D Blacklight fails after warming up.

Thanks for the suggestions. I will look into that. And thank you plainbill for all of your help. I have around 15 monitors here at work I want to try and fix. I hope to learn a lot from you and others in the future!

Re: Hanns G HG281D Blacklight fails after warming up.

Ok, so since my last post I re re did the solder joints. This time I also touched up the joints for the cable plug ins, as well as a through hole chip on the logic board.

I also decided to blow the logic board off with a compressor. Why might you ask? Well when I was desoldering the old caps off I had a hell of a time getting the solder out of the negative holes for the caps. So I used a very small drill bit the size of the hole, and a hand drill to clear the holes. I thought I had blown any potential solder bits...

Re: Hanns G HG281D Blacklight fails after warming up.

1. The series were mainly Panasonic FC and Nichicon PW but a few were Nichicon HE series and the 10v 1000uf caps were KY. The 10uf 35v , 10uf 16v , and 100uf 16v caps were Panasonic GA and the large 22uf 400v was a panasonic CE.

2. No the power light stays on.
The caps on the inverter are green, I cant read the manufacturer only the last part says CON they say EVL on the side and are 100uf 35v caps. I have Nichicon 100uf 35v's in PW. I removed one of the caps to get the specs on it and tested with an ESR...

Hello all. I have been reading these forums for awhile now but have yet to post until now!

I have a hanns g HG281D monitor that started having problems awhile ago. It started much like others on this forums have. The power button wouldnt turn the monitor on, having to press it 20-30 times before it would finally come on. Once it did come on artifacting could be seen randomly on the screen.

Eventually it stopped powering on all together and I let it sit and used my tv as a monitor. Well yesterday I finally decided to fix it. I took it all the way apart and completely...