The markings on the board are R17.. so they are resistors not fuses. To find what is shorted using voltage injection you would need to have a good resolution thermal camera.
You can not start injecting 12V because you dont know through what the line is shorted (example: it is shorted through core which operates at 0.9 to 1. something and you inject 12V you killed it )
If you want to inject voltage inject 0.9V and check with thermal camera.
I hope this helps a bit.
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Re: SAMSUNG UE32F4000AW dead no power
I had to order a new set of capacitors because the post office lost the package.
They arrived yesterday, soldered a new fuse and cap -> it works
Thank you all for help.
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Re: SAMSUNG UE32F4000AW dead no power
Still waiting for the capacitors to arrive. They arrived in my country on 27.05. We have very slow post office. .
Once i ordered Gameboy from Japan.
It took 4 days to arrive in Croatia and 3 weeks for parcel to travel 2 km air distance from post office hub to my house.Last edited by krsta; 06-12-2023, 12:42 AM.
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Re: SAMSUNG UE32F4000AW dead no power
I will replace capacitor and fuse and see what happens....
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Re: SAMSUNG UE32F4000AW dead no power
All diodes and resistors are ok, no shorted caps arround s3310 mosfet driver
(cant find the datasheet).
Mosfet :
D -> S 0,54V (red probe on source)
D -> S OL (red probe on drain)
G -> D OL (black probe on gate)
G -> S 0,65V (black on gate) resistance 9Kohm
G -> S 1.2V (red probe on gate) resistance 9Kohm
Looks like mosfet is dead. Ill replace mosfet and the driver and try then.
This aluminum heatsing is a pan in the a** to remove,...
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Re: SAMSUNG UE32F4000AW dead no power
Thank you for the info.
I have ordered some from ebay. i hope it wont blow up ...
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SAMSUNG UE32F4000AW dead no power
Hello.
My mother in law turned the TV on it said no signal, she then unpluged the tv plugged it in and big bang happened. After that no led indicator was glowing.
Took the tv apart and fuse was dead, rectifier is ok, but found the blown blue capacitor near the 9NM60N mosfet between drain and source. Can anyone tell me the value of this cap.
And the mosfet driver model is unreadable like its spilled with some foggy glue.
This is my first time trying to repair a TV, any help would be apreciated....Last edited by krsta; 05-22-2023, 01:59 AM.
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Re: MSI RX 5700 XT dead?
Read this thread and watch the videos:
[URL="https://www.badcaps.net/forum/showthread.php?t=84308"]https://www.badcaps.net/forum/showthread.php?t=84308[/URL]Re: MSI RX 5700 XT dead?
Read this thread and watch the videos:
[URL="https://www.badcaps.net/forum/showthread.php?t=84308"]https://www.badcaps.net/forum/showthread.php?t=84308[/URL]
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Re: ASRock B550M-ITX/ac - Need help with SOT23
Site for smd markings says it :
A3*** SOT-23 Si2303DS Vishay P-Channel MOSFET
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P1 Mini pocket projector horizontal lines
I found P1 Mini Pocket Projector in original box without remote on the street.
Charged the battery and when powered on noticed 1, 2 or 3 distorted horizontal lines.
I havent opened it yet, the warranty sticker in unbroken.
I was wondering if anyone knows what the source of the problem could be, maybe a known issue. Take a look at the attachments.
Thanks....
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Re: Asrock Z170 EXTREME4 Strange behaviour
Flashed both bios chips with latest 7.50 bios version -> same symptoms.
Then flashed the same version of Intel ME FW (11.8.50.3425) -> same thing.
I noticed when installing drivers that LAN card cant be installed and it has
"Error while starting" so i disabled it in bios, and now everything WORKS(except LAN card).
No more 19 error on debug display,
no more fan spinning when MB is off,
i noticed that when MB hanged with 19 error main bios led was lighted...
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Asrock Z170 EXTREME4 Strange behaviour
Got the motherboard free of charge because it was not powering on.
8 pin CPU power connector is not shorted, and all pins are acounted and ok.
So i put the Pentium G4400 inside presed the MBO power button and still nothing.
5VSB is present and 3.3V also.
Now the strange part.
If i press and hold power button for few seconds nothing happens but if i press it again (1 short press) after the long press the mbo starts and i see the 19 debug code on display.
I then power it off (long press).
After this...
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Re: Asus GTX 970 Turbo No Picture
Update:
Bought x1 pcie riser and gpu gives picture and drivers install.
I will revisit pcie dataline capacitor job i did, maybe put a new one.
Parts for EGA did not arrive yet.
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Re: Asus GTX 970 Turbo No Picture
It is on pin 1 and 2 that go to cap (marked in green).
IC is INA3221 (Triple-Channel, High-Side Measurement,
Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface) specs say :
Pin 1: IN–3 Analog input Connect to load side of the channel 3 shunt resistor. Bus voltage is the measurement from this pin to ground.
Pin 2: IN+3 Analog input Connect to supply side of the channel 3 shunt resistor.
The other 2 channels i see 12v steady and traces are going somewhere (probably...Last edited by krsta; 01-05-2023, 02:24 AM.
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Asus GTX 970 Turbo No Picture
So, where to start.
I bought EVGA GTX 970 and Asus GTX 970 Turbo for 30 Euros total (warranty stickers were untouched).
The EVGA one has a short on 12V external power rail on high side mosfet of the Vcore, ordered low, high side ones and mosfet driver just in case because it takes 20-30 days for it to come from China. When they arrive ill post the result.
The Asus one is pain in the ass.
[url]https://imgur.com/kjHzBi3[/url]
[url]https://imgur.com/G29eh7n[/url]
Before disassembling the card i measured resistances and...Last edited by krsta; 12-28-2022, 08:50 AM.
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HP 17-bs011nm no power
I have HP 17-bs011nm PN:2KF05EA.
No led light when plugged on charger, when PW button is pressed it blinks 3 times indicating that battery is empty.
Does anyone have schematics or boardview for this laptop.
Markings on MB:
NFL GIANTS 1.0 SKL-U
16875-2
448.0C707.0021
THANKS.
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