Re: Samsung 305T Plus issues
It might be the same chip that gave me trouble overheating (Altera Hardcopy). If you have the equipment, try reflowing it. Once open, check the caps, some may need replacement as well.
Try and fix it if you can, it's well worth the trouble. Current batch of 30 inchers don't come close to this one.
KuroNeko
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Last Activity: 07-03-2014, 04:56 AM
Joined: 01-06-2012
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Re: Samsung 305T Plus issues
Many monitors have high pitch sound when using the dimmer. It's annoying but not necessarily a sign of defect. Have you excluded your gfx card as possible cause by using another or a different PC?Leave a comment:
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Re: Samsung 305T Plus issues
No new mod, just the same heatpads. I'll see about adding a silent fan - any power lines available (12v) on the inside that are easily reachable?Leave a comment:
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Re: Samsung 305T Plus issues
A little update on my part: replaced Tcon, problem fixed. I'll use the old board to experiment on reflowing the Altera with a cheap hotair soldering stationLeave a comment:
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Re: Samsung 305T Plus issues
Good timing, I just received confirmation from the Dutch repair parts shop (official Samsung parts dealer) that my order has been shipped. I should have it by next weekend so I'll try and fix it then and keep you informedLeave a comment:
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Re: Samsung 305T Plus issues
Thanks for all the replies guys! I'll provide a bit more detail to answer your comments:
- it happens immediately. If I switch back down to 1280x800, it immediately disappears. So no overheating of the Altera (yet)
- I have tried several dual link cables, same result. Single link cables give no picture at all, not even at 1280x800.
I just ordered a new Tcon board. If the seller can deliver (not in stock) that leaves me with the old one to 'experiment' (providing replacing the board solves the problem). If...Leave a comment:
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Re: Samsung 305T Plus issues
I have not had time to work on the monitor in the past weeks, but with some free time coming up next month, I'm getting the necessary stuff together.
I also tested a bit more with the monitor and noticed it will work fine at resolutions up to 1280x800. Above those the picture errors occur.
Now, this monitor does not natively support any resolution apart from 1280x800 and 2560x1600. Anything inbetween, including 1920x1200 must be scaled by the graphics chip. So I do not know if resolutions above 1280x800 are already dual...Leave a comment:
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Re: Samsung 305T Plus issues
Thanks Bill! Will recapping solve the issue or just improve quality and lifespan (so I still need to get a replacement TCon; found a Dutch dealer selling it at 215 EUR, not cheap)
Would reflowing the TCon help, or do you think some component is actually broken?Leave a comment:
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Re: Samsung 305T Plus issues
OK, here are the pictures. Turns out there are 4 boards accessible, though 2 of them seem part of the display unit. The top board with Altera is there, just like on the 305T non Plus. Strange the service manual does not mention them. Since I don't know what each of these boards do exactly, I named them for their position or obvious role (power, input).
None of the caps are bulged or bloated, they look outwardly fine (and I do know how bad caps can look - thrown out dozens of Dell SX PCs or MSI mainboards at work with caps foaming at the...Leave a comment:
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Re: Samsung 305T Plus issues
ok, I'll see when I can make those pics. The display unit should be OK, in the BIOS screen only the flickering lines show up, and with no signal the monitor flashes sequences of full screen colors without distortions as it shouldLeave a comment:
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Samsung 305T Plus issues
To the mods: I have seen the 305T thread but because it is quite a different error, and the model is different I started a new thread. Feel free to merge if you prefer.
I own a used Samsung 305T Plus, for several years it worked ok, now it has decided the world should end in 2012. Since 30" monitors are now all crappy IPS (I loathe the shimmering effect) I really would like to fix it. In another thread they're talking about reflowing the boards, but the service manual of the 305T Plus shows different boards and since the distortions are quite different from the green haze that...
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