Got this board Im trying to diagnose. I have a short (dc jack "+" and "-" are short). Ive removed the dc jack to see if that was the issue. Ive removed a diode to see but same short. In red, Ive replace that IC but same issue. Are pointers or schematic?
Acer zc-606 - Short Circuit
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by 2Stupid4ULaptop data:
NTB Acer An517-51 FHD
i7-9750H
16GB replaced with RAM Crucial Ballistix SODIMM DDR4-3200 32GB K2 SW
1TB SSD
RTX2060
Bon soir dear online techies, enthusiasts, modest helpers and whomever I might have forgotten!
Search gave me no hits so this is my first post.
My Acer 5 Nitro mainboard had a short circuit when I tried to plugin a USB device. Some smoke rose from the port and it became super hot a that point of entry/exit. Warranty was of about a month.
Since I am on a low budget I cannot afford to buy... -
by konterHello,
ACER Nitro 5 AN515-55-774Z ((FH52M LA-J891P REV.1)
Intel Core i7-10750H
RTX 2060 6GB GDDR6
Turned off during normal operation and never turned on again.
After disassembling and connecting to the power supply PLW3 burned out.
Resistances on all chokes are within normal limits except PLW1 and PLW2 (about 0.5 ohms) - powering the video memory.
I am new to repair( Advise what to do next to find the short circuit and fix it.
Or if burned GPU then how to disconnect GPU and use without it.
If there is anything else that needs to be measured,...2 Photos -
by aaronkatriniHi all,
Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.
Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second... -
by MireniaHi 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.
... -
by fab13Hello everyone
Small technical problem on a Nintendo Switch lite
Here's what I noticed: the USB port has been damaged internally, with a short circuit on the power supply line to the small fuse.
After replacing the USB connector, the short circuit went away and I can't see any other short circuit in the whole motherboard.
When I charge the console, it seems to be charging: I get 15 volts and an amperage of 0.450 A.
Then, after a while, the amperage increases to 1.1 A and the BQ24193 charging chip starts to heat up, as evidenced... - Loading...
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