Hello people,
I've got this laptop not working for repairs, and as you can see something was done to it as you can see in the coils PL58XX (which I for some reason cannot find in the schematics...) The first FET (PQ201) was not an original part and a questionable one at that and the second one (PQ202) was shorted. Both are N-channel. Ordered replacements for them and replaced them after arrival. Now I have encountered another problem: there is no power at the second FET. By following the thread linked I got to the injection part. Applied 0.8V at 1.5A, but couldn't feel anything getting hot,...
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Topics: 101,428
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Welcome to our newest member, fabioshot.
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by FronczekToday, 04:18 AM
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by reformattTrying to identify where to source the LCD connectors on the motherboard side for a HP 14-cf2051la. This one came in with liquid damage to the connector and the flex cable. It appeared to clean up ok, however customer says that display blanks out intermittently. It's a 30 pin EDP flat ribbon cable on motherboard side. Believe it to be a HEDWIG-6050A3155301-MB-A01 motherboard.
I've stolen the connector from another HP motherboard which matches up but it's not the best since it's been kicking around my donor pile for a while. This connector is different to most flip type ones I have...03-25-2024, 08:29 PM -
[SIZE=14px][FONT=Arial]I have a TCL 55P6US with sound and backlight but no picture. This model does not have a T-CON board, and the right (rear perspective) panel board is fed from the left panel board. I have not been able to induce any change by disconnecting the secondary panel board or the tape cut-off method on the primary board.
There are a bunch of voltages missing on the panel boards. I can't find any shorted caps of the panel boards, and all of the missing voltage rails read in the kiloohms, which leads me to suspect the issue may lie on the circuit board, rather than a short...11 PhotosYesterday, 07:17 AM -
yesterday i bought this [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"251","title":"corrossiom.png","width":"354","data-attachmentid":3238358}[/ATTACH]
I was not high on caffeine but the specs we nice-[LIST][*]Processor: AMD Ryzen 5 4600H 6 x 3 - 4 GHz, Renoir-H (Zen 2)[*]Graphics adapter: AMD Radeon RX Vega 6 (Ryzen 4000/5000)[*]Ram: 16gb DDR4[/LIST]so i bought it now i need schematics and help trouble shooting this all i saw is this burned cap idk what...03-19-2024, 05:00 AM -
by Aadi Awanhey everyone. hope you all fine..
plz anyone help me to unlock password bios toshiba tecta a11.
thanks in advance..........-
Channel: BIOS Requests ONLY!
Today, 05:18 AM -
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by nissimezraDevice: Laptop
Brand: Redmibook
Model: Redmibook Pro 14 AMD 6800H
Board number: NB6098_MB_V7
Serial number: couldn't find serial it's in chinese
Request: BIOS dump
Problem,: Black screen
Many thanks​-
Channel: BIOS Requests ONLY!
03-19-2024, 06:17 PM -
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by egelaptopHello, can someone help me clean the area of my original file?
820-3115-B
There was slj8c on the device. I wanted to say that I read that slj8e works on many devices, but I could not get an image. I want to try it with a region-cleared file....-
Channel: BIOS Requests ONLY!
Today, 04:35 AM -
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by bryanXHi guys!
Firstly, I will apologize if my topic is in the wrong section, please move it if necessary.
I want to repair one treadmill from the brand Horizon the model is Omega II. Practically, the motor power control board has suffered one damage.One mosfet has blown and I suppose by doing that, the short circuit has damaged a couple of diodes, one zener diode and two transistors. I hope that is all. I will find out when I will put them all back on board. I have dismantled and cleaned the rotor of the DC motor, tested it, and it seems to be working properly. I suppose it was water...5 Photos03-05-2024, 01:11 PM -
by iyan76Please fix this Bios.
I got +3VS5 and +5VS5 but Power and Battery LED won't turn on, board cannot switch on.
S/N# 5CD9194QW1...-
Channel: BIOS Requests ONLY!
Yesterday, 10:28 AM -
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HI I have a break in the EHT wire that connects to anode that goes into the tube i.e noticed light beaming out from a tiny section of the wire and sparks on a component on the pcb.Please advise the best method to repair the eht wire i.e what type of glue can i use.thank you.Today, 03:20 AM
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by egelaptopHello, can someone help me clean the area of my original file?
820-3115-B
There was slj8c on the device. I wanted to say that I read that slj8e works on many devices, but I could not get an image. I want to try it with a region-cleared file....-
Channel: BIOS Requests ONLY!
Today, 04:35 AM -
-
by FronczekHello people,
I've got this laptop not working for repairs, and as you can see something was done to it as you can see in the coils PL58XX (which I for some reason cannot find in the schematics...) The first FET (PQ201) was not an original part and a questionable one at that and the second one (PQ202) was shorted. Both are N-channel. Ordered replacements for them and replaced them after arrival. Now I have encountered another problem: there is no power at the second FET. By following the thread linked I got to the injection part. Applied 0.8V at 1.5A, but couldn't feel anything getting hot,...Technical discussions covering any type of laptop, notebook, netbook, tablet, or smartphone. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!Today, 04:18 AM -
by Egidio85hi, can anyone be kind enough to create the bios file for me? I attach the backup I read and the original bios downloaded from the Acer website
serial NHQ8KET00204410E333400
THANKS...-
Channel: BIOS Requests ONLY!
Today, 02:37 AM -
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by samstownHello,
I have this Hiopos Cash system running on android that stopped working without notice. The power supply is ok, there's light on motherboard but when pressing power button it doesn't turn on.
I've google for schematics but no luck. Motherboard is S2802_V1.3B. I've took some measure and maybe it could be a transistor, the one I am pointing on with the orange arrow on the pics. Does anyone knows this board ?
Thanks
Sam...Yesterday, 07:26 AM -
by Aadi Awanhey everyone. hope you all fine..
plz anyone help me to unlock password bios toshiba tecta a11.
thanks in advance..........-
Channel: BIOS Requests ONLY!
Today, 05:18 AM -
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by bohabohaOn this set new LED strip. Backlight on but no image
have discovered very hot ic in red market in the picture plus some capacitor that are shorted on mainboard ,3v,5v,and 12v is in present want help deciding which is the bad boy...03-26-2024, 05:27 PM -
HI I have a break in the EHT wire that connects to anode that goes into the tube i.e noticed light beaming out from a tiny section of the wire and sparks on a component on the pcb.Please advise the best method to repair the eht wire i.e what type of glue can i use.thank you.Today, 03:20 AM
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by KABYhello every one
i have bought seconde hand chromebook i fund that its locked by administrator by serial number can someone help me with this
i tried rcunlocker nothing happend enrollment dev mod nothing CHANGED IN bios
when i change serial number laptop wont turn on ( i change only one number in bios bin not everythin)
can someone help me with it!!!!
the serial number is NXHKAEF006321039717600
ORIGINAL BIOS BIN...-
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Yesterday, 10:34 PM -
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yesterday i bought this [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"251","title":"corrossiom.png","width":"354","data-attachmentid":3238358}[/ATTACH]
I was not high on caffeine but the specs we nice-[LIST][*]Processor: AMD Ryzen 5 4600H 6 x 3 - 4 GHz, Renoir-H (Zen 2)[*]Graphics adapter: AMD Radeon RX Vega 6 (Ryzen 4000/5000)[*]Ram: 16gb DDR4[/LIST]so i bought it now i need schematics and help trouble shooting this all i saw is this burned cap idk what...03-19-2024, 05:00 AM -
by Donny2derbyHi again all. Picked the above model up a couple of days ago. Information was that it just stopped working all of a sudden. Was from a nice house with no kids or pets and no reason to think it's suffered impact damage.
Working my way through it. I get a flashing silver light on the front which indicates an attempt to start?? Then it turns off and doesn't attempt to reboot.
Had the back panel off and with the plugs disconnected to the backlights, on the connectors I'm getting 63v DC on CN 6801 and 4.0v DC on all pins on CN 6802. All except the not connected ones I should...2 Photos02-21-2024, 03:56 PM