I have a LG 60pv250, picture look good except for some what looks like noise that flashes on and off in certain areas across the screen. Grainy pic splotches. Looks like it would be an area across the screen horizontally. Also the tv stays on for probably 2-3 mins and then turns itself off. I can turn it back on but cycle continues. If I unplug the YSUS board the tv will stay on forever but no picture of course but have audio. Would this point to a bad YSUS board? I have already touched up the bad solder joints on the coils on this board as its a known issue. If it is a bad YSUS board do I have to replace the 2 buffer boards? I have seen opinions both ways. I have measured the voltages going to the YSUS and TSUS boards and both are identical coming from the power supply. Any help would be appreciated.
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Re: LG 60pv250 plasma tv issue
Y-sustain, Z-sustain, and power supply commonly have cracked solder joints on these models.
I recommend you thoroughly reflow all 3 boards. If the issue doesn't get resolved, then you missed the cracked joints. there can be many dozens of cracked joints, sometimes hundreds. It will take a while to properly reflow all three boards but it will take care of the problem.
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Hello guys,
My Plasma Philips 37inch chassis FTL2.1 does no picture ,and goes into protection mode after 30 seconds (red led blinks at 3Hz).
Can someone has any symptom like this ?
Thanksโ05-09-2024, 10:56 PM -
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Hi everyone,
I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck โ hoping someone here can shed some light.
๐ Original Issue
The machine initially wouldn't negotiate 20V over USB-C โ stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.
โ ๏ธ New Problem: One USB-C Port Only Works in One Orientation... -
I have three identical-spec 820-01700 boards (2.6/32/512), and ALL THREE boards came to us with the same fault, from different sources: The boards don't wake from hibernation with the keyboard or lid, they ONLY wake when you press the power button. I understand this is a very minor issue, but the boards must be fixed!
We will of course begin with the obvious (checking lid signals), but I couldn't help but notice these three boards were all 32GB variants. Has anyone noticed an issue relating to these 32GB boards in particular? I of course don't think it's a RAM issue, but it's bizarre... -
HP Pavilion 15-CW1002UA
S/N 5CD0251CBC
P/N 7KE54EA
Hello guys!
I have a strange issue with my laptop keyboard and I'm lost trying to detect what's wrong - the KB9028Q-C or the keyboard itself.
It powers on OK and has no other issues except the following:- CAPS LOCK does not work at all
- Fn button toggles Flight Mode
- When I press 't' or '5', it produces 't5', and when I press 'y' or '6', it produces 'y6'
- (with SHIFT pressed: 't%' and 'y^' respectively)
but when I press and hold...06-27-2025, 01:10 AM
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