Hi, I have a Toshiba L500 (compal model). The motherboard is dead and I have ordered a new one. However, I want to practice on this dead board and I thought I would start by checking for shorts. The question is, do I need to have the CPU and ram in the board when doing this?
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Re: Question on checking for shorts
Also, when checking voltages does the CPU and ram need to be in then too? -
Re: Question on checking for shorts
No they don't you can still measure all the voltages without them.Comment
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Re: Question on checking for shorts
To measure the voltages you need the cpu installed in many mobo. Espacially amd ones. Also most of intel boards requires cpu. But if you are checking for shorts you dont need anything.Comment
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Re: Question on checking for shorts
Can discuss here what tips or trick tracking short component spidey. Sometimes use regulator power supply some use capacitor wizard tools. But not all problem done with this toolsComment
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Hi! i have an asus gl703ge totallt dead.
no shorts connected to power bench
i've not 3,3 nor 5v...
you can donwload boardview/schematic here
https://www.badcaps.net/forum/showthread.php?p=1052820
pu28 has not 3,3 and 5v out...it has voltage in, but i have no en1 and en2
en1 and en 2 are "s5_on" and are coming from Ec IT8987...
is it 8987 preprogrammed? should i try to change it?
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Hi,
So I've got that console PS4 Original model CUH-1006A logic board SAA-001
The console suddenly has stopped working.
First there was no beep upon pressing the power button, but eject button will give us a reaction. Then after replacing PSU by original owner with exactly same model it completely stopped working. No beep, no reaction at all.
I personally think it is pure coincidence and some IC just died over the time.
Both power supplies are good, checked them inside and are working with the other board with BLOD.
I have...02-10-2021, 04:21 AM -
Toshiba C45-C4320K LA-C442P Motherboard
Hello, can someone please help troubleshoot and verify voltages on this Toshiba board, I can´t seem to find schematic for this model.
It won´t boot, no video, just power LED lights up when button is pressed.
Inductors resistance to ground is:
A 3.3MOHM
B 32K OHM
C 43K OHM
E 48 OHM
F 92 OHM
G 166 OHM
I checked all relevant KBC IO (KB9022Q) signals (VCC, AVCC, EC_RST, AC_ON, LID_SW, ON/OFF_BTN, ETC...) and all is good; just in case I reprogrammed KBC and BIOS with... -
I have two of these soundbars, both with the exact same issue. The soundbars were hit by lightning and no longer power on. The PSU does not output any voltage on the DC side. When plugged into mains, the DC output is a stone-cold 0.0 volts. The AC side of the PSU seems to be functioning correctly (as far as I can tell). When checking the plugged-in PSU with my thermal camera, the OB5269CP PWM controller (U1) and the two resistors (R12 and R13) pulse on and off. These run to the positive DC side of the bridge rectifier (among other components along the way).
There's no physical damage... -
Hello:
I have both these laptops that appeared to have the same fault so I thought I would have a go at replacing the PCH as something to learn, they both are using the same PCH.
I started on the ACER:
Up on connecting power no signs of life but current is consumed from the bench power supply and the PCH is hot.
All the caps on the top of the PCH are showing 0 ohms and the 3.3v rail is shorted.
I followed the videos from Sorin, Electronics Repair School on Youtube heating from the bottom to install. I practised on around 10 scrap...
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