TP3: ON - 3.27, OFF - 0
TP2: ON - 3.28, OFF - 0
TP7: ON - 0, OFF - 3.28
-------: ON - 4.94, OFF - 4.98
-------: ON - 4.94, OFF - 4.98
TP4: ON - 14.07, OFF - 14.55
-------: ON - 14.08, OFF - 14.55
TP1: ON - 0, OFF - 0
-------: ON - 0, OFF...
Noodneek
Member
Last Activity: 09-15-2024, 01:29 AM
Joined: 08-30-2024
Location: Beer Sheva
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I connected everything and measured the voltages on all the contacts on the mother board connector going to the CN701 connector on the power board, both in ON and OFF states. Here are the values from top to bottom as seen on my 1st picture below:
TP3: ON - 3.27, OFF - 0
TP2: ON - 3.28, OFF - 0
TP7: ON - 0, OFF - 3.28
-------: ON - 4.94, OFF - 4.98
-------: ON - 4.94, OFF - 4.98
TP4: ON - 14.07, OFF - 14.55
-------: ON - 14.08, OFF - 14.55
TP1: ON - 0, OFF - 0
-------: ON - 0, OFF... -
This is interesting, thank you!
Though, I don't understand Croatian well anough (I know Russian and Ukrainian) to get what he did to fix the issue permanently, and he didn't show what components he replaced on the T-con board.
And now my display is black permanently, I missed the chance to measure stuff when it was still in a partially working state......Leave a comment:
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ISquishWorms[USER="429384"]ISquishWorms[/USER], I just measured the voltages on my monitor and I get 29.3 V on the two middle red wires (contacts 3 and 4 on my last picture). Are you sure your readings were 65?.....Leave a comment:
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Long posts are absolutely fine if they contain useful detailed information, I meant it as a compliment 100%!
Apparently I wasn't clear enough. I wasn't talking about buying the whole new monitor, but only the replacement [B]LCD panel[/B] (without the frame, the electronics and the stand). There are no deals to buy the whole new monitor for the 3rd of the retail price, but that's exactly how much standalone replacement LCD panel costs...
But before that I want to be sure first, that the PSU's working fine, and also hear from that company wich makes replacement LED strips I...Leave a comment:
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OK, I found the tutorial on how to disassemble the display to get to the led strips... But even then I might have a problem identifying the leds... Here, I found this thread by someone who took apart the same BenQ SW2700pt display and couldn't figure it out:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-computer-displays/3211128-benq-sw2700pt-backlight[/url]
So, again, how do I find the right LEDs??
Another thing, before that I have to make sure the PSU board is OK, right? So as I understand, I need to power...Leave a comment:
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Hi, I have the same monitor and most probably the same issue with failed LEDs. Have you got any luck finding these strips? Also, how do I take the panel apart? I don't even know where to start...
Thank you for advance!...Leave a comment:
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Thank you for the reply. How do I disassemble the panel and find matching LED strips?...Leave a comment:
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It is apparently a backlight issue, since I can see the image on the screen with a flashlight.
Here are some pictures:
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Polish_20240831_091244272~2.jpg","data-attachmentid":3340555}[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Polish_20240831_091244272.jpg","data-attachmentid":3340556}[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Polish_20240831_091729273.jpg","data-attachmentid":3340557}[/ATTACH]...Leave a comment:
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Replacing all the caps on the BenQ SW2700pt's power board didn't help...
My 3.5 years old monitor (BenQ SW2700pt) started to black out for 1-2 sec every minute or so, it was doing this even with PC disconnected from it. I searched online and read that it's probably aging capacitors and there's a workaround to lower the brightness.
I lowered it from 100 to 65% and it indeed helped, but after a couple of months the issue returned... I continued to lower the brightness, but it helped only for a couple of hours at most, then I needed to lower it further... Turning the monitor off and waiting for it to cool down also helped for a short time, after which it... -
Hi, I'm just a guy trying to fix his expensive PC screen.
Hope to find some help here...Leave a comment:
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