It been sometime I don't ad a tread, but this time I need some help. I pick this tv real cheap. It has sound and if I put a flash light I can see the video, but there is not backlight. I am getting the 5 and the 12 volt, still no back light. I connect the 5v to the bl_on with a 1k resistor but nothing happen. Can someone tell me how can I get the backlight on? Posting some pics.
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Re: Sanyo dp52449 no backlight
This sounds like an inverter problem. Do the inverters live on the PSU, or are they separate? I'll wait for pics.
Edit: I saw that you started another thread for the same issue: https://www.badcaps.net/forum/showthread.php?t=31388Last edited by capkid; 09-06-2013, 10:05 PM. -
Re: Sanyo dp52449 no backlight
in the psuComment
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Re: Sanyo dp52449 no backlight
same thread, just a mistake and didn't know how to erase it.Comment
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this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
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unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
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I bought this p2210f dell monitor to fix. Schematic is the same as p2210.
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Hello all,
Am trying to figure out this backlight issue with this A1990 Macbook Pro.
Tests performed:
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Backlight IC is receiving the correct support voltages.
Fuse F8400 ok
Current sense resistor R8400 ok
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Anyone... -
Hi all,
I've got an LG Flatron 24EN33TA with a backlight issue. The problem began with the monitor not powering up after sitting for a long time (overnight or during the day throughout work). When I would wake the computer up, the backlight would flick on for a second then go out. Sometimes it would take many tries to get it to come on. Once the monitor came on, it worked flawlessly until another long duration of being powered off.
I thought the problem would be bad caps but I checked both of the caps on the board and they are fine. I also tried powering the monitor from...
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