Re: Samsung SyncMaster 2493HM black screen with power
I should be getting back to this soon, the monitor has been working since my last post. It has worked for this long before so I suspect it goes back out. If/when it quits again I will continue to test as needed and post my results. I would request the moderator clip this thread at it's hijacked point and start those posts a new thread as it is VERY OFF TOPIC and the original info could really help someone else. The barbas posts are not related and do NOT contribute to this topic. Thank you.
thirdoff
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Last Activity: 06-06-2011, 09:20 PM
Joined: 05-05-2011
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Re: Samsung SyncMaster 2493HM black screen with power
Thank you, I still need to set it up so I can check the test points. I was not clear to where the "pins" were located on the inverter. On the white/blue cable or ???...
I was originally hoping just switching the caps would help. Does the noise reveal anything?Last edited by thirdoff; 05-13-2011, 05:27 PM.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
I should also add this started the night of a storm and a power outage. I do not know if it is related.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
The monitors works with no noise and full display when its working.
The clicking sounds like it is coming from the bottom right of the monitor. I swear the moment I shut down my recording device, the monitor went blank and started clicking. It is blank again after working for about 24 hours, I see it is in power saving mode ok, but when it wakes up it is blank. I got it recorded! The attached zip file contains a recording of the clicking and an amplified version. I will also get readings on the ribbon cable....Last edited by thirdoff; 05-12-2011, 02:07 PM.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
The backlight just came back on. It is still intermittent like it was. What troubleshooting point is next? Again all the CAPS look great. I will record the sound the next time it goes blank. The sound is consistent and only with the blank screen. Every time I try to record the sounds stops and the monitor works, maybe I found the fix! (not really) ...I'll just set up constant recording and it appears it will work forever not allowing me a chance to record.Last edited by thirdoff; 05-11-2011, 04:43 PM.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
Replaced the two 470uF 35V CAPS on the invertor board. The ones from digikey were too long but they worked any way. They did not however fix my problem. The screen is black, LED is still solid blue and I still here the clicking/ticking. It hasn't light up at all now but the noise is the same. I will try to record it and attach.Last edited by thirdoff; 05-11-2011, 04:42 PM.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
Thank you. I will replace the two caps on the inverter board (470uF 35V).
I will use and support this board unless I can find it locally over the weekend or with cheaper shipping. I will read up on your brand recommendation.
THANKS AGAIN! (Yes I am shouting because it's exciting to see educated, responsive community support!)
I will be back with the results if it will help someone else.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
So the invertor board is the one in picture 5? I know what an invertor board looks like in a notebook and that looks most like it?Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
Sorry, picture 4 shows both boards and I can generically troubleshoot components but I have no idea the location you refer.
Sorry, I am ignorant to these monitor's components.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
Thank you. I will set it up where I can power on while open. Or I may just change all the caps. I wanted to be sure as the screen may flicker for several minutes before going out. It also may run and be lit for hours or days before it goes out. It does not go out right after turning on. Once it's out - it seems to stay out for a long time. It does not come on and then turn off after 2 seconds ever.Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen with power
Photos Attached...Leave a comment:
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Samsung SyncMaster 2493HM black screen with power
Hello. My Samsung 2493HM will power on but has a black screen.
Working great for a while, it even sometimes works for a long time but then the screen goes black.
This is what I do know;
The Blue LED is solid when this occurs.
Sometimes while it's black, a clicking/ticking noise will start in no particular pattern. The noise may be coming from the speakers but I cannot tell for sure.
I have opened the case, inspected the caps and they are not visibly swollen. I know this might still be the issue I just want to move in the right direction.
I shined a flashlight... -
Re: New Members - please post your introductions here
Hello,
So many dead monitors, so little time.Leave a comment:
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