need toshiba p70 ac 129 shematic\boardview

george_gpu

Senior Member

Join Date: Dec 2015

Posts: 77

Country: greece
#1

need toshiba p70 ac 129 shematic\boardview

02-25-2021, 06:42 AM

hi
i need toshiba p 70 a 129 shematic
bdb board daobdbbmb8f0 ( no power symptom & it has short circuit pq2 mosfert ,very hot)
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Help me find the short circuit on this WORKING Nvidia GTX1650

by aaronkatrini

Hi 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...
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
04-18-2024, 03:15 PM
9th Gen Dell Optiplex Micro PC motherboard repair: Short Circuit?

by Geeker007

Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?

I am new to electronics repair, so my queries could be naive but I am ready to learn.

So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is...
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
01-28-2025, 03:31 PM
Nintendo Switch lite charging chip heats up and does not short circuit

by fab13

Hello 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...
- Channel: Troubleshooting Game Consoles & Other Weird Devices
09-16-2023, 04:59 AM
Short Circuit tester

by Tarot Superstars

Hello.
I have seen a short circuit tester made with 3 * 9V batteries, a voltage limiter component and a resistor connected to the probes of a multimeter.
The theory is that the meter becomes sensitive enough to read very low resistances and the lowest resistance to ground on a circuit is likely to be a short circuit in that area.

Link
The Amazing $1 Short Finder Upgraded! Convert ... - YouTube
https://www.youtube.com/watch?v=0eixDdCpiO4

My multimeter isn't normally sensitive to very small resistance, but when I put a 1 mega ohm resistor...
- Channel: General Electronics Technical Discussion
09-25-2023, 09:11 AM
MSI B250 Gaming M3 Short circuit in CPU power supply circuit

by M1NEBLANK SHOW

Hello. MSI B250 Gaming M3 board, short-circuit on the power supply. Found a problematic mosfet VQ1
(N-PK616BA_PDFN8-HF) soldered it out - short circuit is gone. I replaced VQ1 + VQ5 (N-PK632BA_PDFN8-HF). VQ1 was replaced with PK618. After starting attempt VQ1 is lit again. What can be the problem? In the driver?

Schematic and Boardview here
...
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
04-04-2025, 03:57 PM
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need toshiba p70 ac 129 shematic\boardview

need toshiba p70 ac 129 shematic\boardview

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