I don't know the model number of this vizio but it's 46in lcd what would be causing this issue
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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 — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — 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.
⚠️ New Problem: One USB-C Port Only Works in One Orientation... -
Hi all. So from the knowledge I've picked up so far I believe the issue maybe caused by a failed strip of LED's? Looking at the photos would that be plausible?
Secondly. How in gods name do you get access to the backlight panel? Mother of god
I've tested the voltages with the tv powered up on the terminal rail marked CNL 802 and they're as follows reading from pin marked (A) upwards. Pin to ground.
Pin A 298v DC
298v DC
0v DC
216v DC
216v DC
0v Dc... -
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... -
Have a acer laptop ex215-22 with motherboard part no daz8emb18a0 the issue is the battery gets drain overnight upto 25-30 percent even when switched off / shutdown.even after ssd is removed and laptop off with button the battery keeps draining.i have updated the bios but same issue have tried another new battery and the charging works fine only issue is battery is discharging when connected to motherboard in off condition.
Help me to diagnose this issue as there is no shortage in the inputs MOSFET -
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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