Looks like they repaired this just enough so they could flip the TV. Owner bought it used. Would have been less work to replace the strips. Had to patch all the holes in the reflector sheet. LG 50LN5750. Saved a diffuser panel for this one but not the sheet.
Heard of the stacking method for LED repair. How about the side by side method.
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Re: Heard of the stacking method for LED repair. How about the side by side method.
That is such a shoddy repair I would never put my name to it.Willing to help but I'm no expert. -
Re: Heard of the stacking method for LED repair. How about the side by side method.
I have also seen a 42LN strip installed in a 50LN. The narrower spacing caused the corner to be darker and I had to patch the reflector sheet which had new openings cut to fit the shorter strip.Comment
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by flibidyI have here a Magnum IA.100 which belongs to my parents.
The unit powers on & when the relay kicks in, you get a pop from the speakers (this might sound weird but is usual behavior for this amp). However, you get nothing coming through it from any of the inputs & no pops and crackls from any of the controls.
Because of the sound from the speaker when the amp turns on I have assumed that the output section probably works but I could be wrong & I'm not sure how to test that side of things further.
What Ive done........8 Photos-
Channel: Troubleshooting Audio Equipment
01-01-2025, 01:26 PM -
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by bouny56βHello
Laptop E15 I5 10gen
Mb nm-c421
I have a problem with the usb-c power dc.
The motherboard start only in one side of the usb-c
Replace the usb-c port 2 times same problem
With the usb-c meter, one side 20v ok, other side the usb-c meter don't come on
Try to test the pin with the Mechanic Tail insertion tester and every pin are ok ?
Can the pd controler be the fault ? Or something else maybe ?
Thx
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by howardc64All left and right refers to looking from rear of TV (or looking from front with TV upside down)
- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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by StephenRight SIDE usb.c port charges and transfers data without issue, two left side uSB c ports charge but do not receive or see data. Was liquid damaged, and repaired significantly and thought we were in the clear but appears this is the last issue that is rearing its head. I am trying to locate the RETIMER chip that communicates the DATA TX/RX but I cannot seem to find it on the schematic or maybe I am just so tired my eyes wore out lol. Any help would be great.05-29-2025, 10:35 AM
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by dicky96Hi guys
I have a faulty Xilence ATX PSU here
The fault basically is I have two short circuit power transistors on the primary side of the large SMPS transformer - they are 2SC3320.
There is another smaller transistor on the primary side C3866 which tests ok
The PSU has three transformers - it looks like the 2SC3320's drive the big one and the C3866 drives one of the small ones. There is a separate PFC PCB with it's own controller and MoSFETS
There is also a short on the 3.3V output and a near short on 5V - I suspect this probably blew... - Loading...
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