Re: Problem with Samsung ps43d490 PDP
It seems to have worked, I have given it about 5 hrs of testing and had no issues compared to 10mins max before but time will tell. It's certainly done something and hopefully it helps someone else too.
guy_hall
New Member
Last Activity: 10-17-2021, 12:21 PM
Joined: 09-27-2012
Location: Notts
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Re: Problem with Samsung ps43d490 PDP
[url]http://youtu.be/PC1Fo1Huipg[/url]Re: Problem with Samsung ps43d490 PD...Fo1Huipg[/url]Leave a comment:
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Re: Problem with Samsung ps43d490 PDP
Just for info, before I just did this, voltages were round 207 and 58 on standby, as soon at I took it out of standby, the voltages dropped slowly and the screen didn't come on. I have also updated the firmware now the screen is working a bit In case there was an issue thereLeave a comment:
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Re: Problem with Samsung ps43d490 PDP
I watched a video on YouTube about this model shutting down, for him it ended up being bad solder joints on the 42dh ym so I took it off, re soldered most of the joints, put it back in ant it is working at the minute. I refined the voltages using the pots, now I'm just waiting to see if it goes off, while having a go on the ps3
hope the picture uploads properly
The heatsinks on the transistors get red hot though, don't know if that normal...Leave a comment:
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Re: Problem with Samsung ps43d490 PDP
I have just tried to turn it on and the screen won't come on at all now. When I give power from the wall, the standby light is on. When I press the power light on the remote, the red light flashes on and off every second but the screen stays off, no luminance / glow at all from the tv?Leave a comment:
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Re: Problem with Samsung ps43d490 PDP
Just watched about 5 mins of a hd film on hdmi then screen went black but sound still there. Turned tv off and on again, sound comes back but screen doesn't. Are there any caps that could affect this before I replace the board?Leave a comment:
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Re: Problem with Samsung ps43d490 PDP
Yes, I turn it on and the screen comes on. It lest you watch for a bit then goes off and doesn't come back on for a while. It's worse on he channels. Sometimes only lasts for a few minutes. I had similar on my other lg and replaced the capacitors on the main board and it's been fine since (those weren't domed) but this one doesn't have any on its main board...Leave a comment:
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Re: Problem with Samsung ps43d490 PDP
I have similar problems with a ps43d450a2wxxu. There is sound and some times the screen comes on for a bit then goes off, other times it won't come on.
If I have all boards plugged in, y&x buzz (x more) and va is 58 and vs is 208. The green light in the logic board flashes every second. If I unplug x main, it comes on for 5 seconds and off for 2, and the boards stop buzzing. Also, with either x, y or both unplugged from the psu, the voltage drops from 58 and 208 down to zero over a few seconds.
I cannot see any...Leave a comment:
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