Re: acer 5734z no power issue.
Here
Here
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Hi everyone,
got an Acer Helios 500 Laptop (PH517-51) for diagnosing with a strange issue:
The laptop runs for a while (1-2 hours, sometimes less) and then suddenly shuts completely off, like someone pulled the power cord and restarts immediately after on its own.
If this happened once, then the laptop only runs for a few minutes until restart.
This happens regardless while staying in windows or uefi or in a linux environment.
At first I thought of a normal overheating issue, but as I monitored temps with HWInfo64, nothing seems very hot.
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Ii wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this... -
Hi, I am looking for schematics for an Acer Predator 17 G9-793-73A6?
I can not read the last digit, maybe 6.
In another topic I found a boardview that seems to match mine: Acer Predator 17 G9-793 - Pegatron MU5DC CH7DC BoardView
But in the same topic schematics don't match (both board view & mine) : Acer Predator 17 G9-793 - Pegatron MU5DC CH7DC REV 2.0
On this mainboard, the GPU is dead (shorted), but I am trying to have it booting without the GPU Nvidia, to disconnect GPU I have desolder 3 coils powering the GPU, and one bigger in upstream these 3.
Now it begin... -
Hello, I'm having issues with this acer nitro 5 GH53G LA-L191P, I bought it for repair and found out the problem was de BQ24781, replaced this and the laptop worked, but the battery was on 4v and didn't charge beyond that, on windows was detected, but on 0%, so I used the power supply to try to charge the battery, with the laptop off, so at some point the battery took current and I was on this for two minutes (used 14v/2a, label says 15/17v max) and after this the laptop stopped taking current and when I tried to turn it on, it doesn't.
So I measured the laptop and when plugged in I got... -
Hi there all, Merry Christmas and Happy New Year!
Looking for advice, Need to restore/fix the damaged Acer Aspire 514 -54 power circuit pathways.
I am not good at reading schematics and have difficulty finding the board viewer schematic or simple schematic for damaged parts, but I have all the tools and experience for micro-soldering. All I need to figure out is which ends (from-to) and trace wires to restore lines.
Hope the pictureS are clear enough to see the problem...