Schematic needed of lenovoG50

[Gau_saha]

Sir
ACLU3/ACLU4 UMA -NM A362 REV 1.0 Schematic needed .
Regards
Gautam...

[gigi capaldi]

Can you help me to identify this capacitor? Imac 2017 21,5.

[Repair Electronics]

Anyone know moatherboard ruf the blacklight fuse ? Where they are ? Is an AMD Ryzer 5 i spend couple of hours to fiind it and still not fiind nothing....the problem is once i connect the afaptor i have image but not blacklight..when i remove the adaptor and stay on battery i not have at all image...and i thing so is the fuse problem

[Factiss]

Can anyone get a hold of the schematics and boardview for the Asus laptop ROG Strix G713QE-HX043 ! I have a motherboard that is missing parts, I would like to replace them but I can't find a boardview or schematics for it anywhere. Motherboard part number : [U][B]G513-6050A3249301-MB-A04( A4 )

THANKS !![/B][/U]



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[sarry86]

Hello, I have this Hp pavilion 1030 G1 that starts with a single light on caps lock then it turns off, measurements at the coils, meter in resistance mode (not continuity mode) are as follows: The problem started just after it fell from a desk to the ground. I can't find a boardview or a schematic diagram anywhere, please help me 🙏

1. 13k ohms
2. 0.00 ohms
3. 6.7 ohms
4. 8.9 ohms
5. 18.2 ohms
6. 83.5 ohms
7. 99.4 ohms
8. 10.7k ohms
9. 68.5 ohms

[URL=filedata/fetch?id=3260316&d=1714132446][ATTACH=JSON]{"alt":"Click...

[Squaryhead]

Hi,

I'm trying to locate the Bios chip on my T495s 20QJ to recover the Bios.

The computer shut down during the bios update, now it's just singing. I want to try to reprogram it. I've read the BIOS guide but I'm still missing some information. I hope I'm asking in the right place.

Do you now which one of those chips is the BIOS ? And, are those compatible with the CH341A ?

Thanks a lot !

[Biostechnology]

nm-d031 need schematic

[vijayppatel017]

A2442 hinge sensor has liquid damage, not possible to repair, is there any alternate?...

[Marco_compucell]

Gooday
I have an Lenovo ThinkPad P15s gen2 that keeps giving me this error 2203
I have used the Lenovo Gold Key U1 Tool erased the eeprom and enter all the configs again but I still receive this error
I believe it to be an BIOS problem
I will Attach bios dump and some screen shots

Board number: HT4B0 /HP4B0 /HT5B1 /HT4B2 NM-D352 Rev2.0
SN: PF-3R33ZC
Type Number: 20W7-S2L700...

[jackclements]

Hello,
I have replaced the psu on this Toshiba 42HL196 twice. I have no HDMI or tuner. The component and composite inputs work though. I had a spare seine but it just gives me 3 red blinks so it's either a faulty seine or needs programming. It would seem it's the seine board. Ideas?

[JoeFlash]

Hi! I have a TV, Samsung ue49ku6100kxxu, no boot, when connect the power cord, standby led and the backlight up and down repeated. When i disconnect the MB, the backlight is up.
I take some measurement and all ok. I have already try tape method and same happen, if I disconnect both flex from mainboard to panel tv same happened. This is a software error?
I have an IC programmer: CH341A
MB model: BN41-02528
MB code: BN41-02528A
on the glued label: BN94-10826K

[webster456]

Hello everybody I need to clean ME region in this bios or new clean bios for this motherboard...

[amingpx]

I need flash file monitor samsung 931b...

[DARNO786]

Hi guys i have an m720q bios which has a password on it.

i tried Patching with the autopatcher but it gave an error

it has also shows up with the 0199 error on boot

Anybody know how i can patch this?


Thanks...

[valente222]

Hello everyone. I have this board from a colleague, with a short in O2U2 GPIO, it was replaced. But when you turn it on it turns the fans at times as if it wants to display video on the screen, but the loop restarts. If someone has a backup it would be great.

[gurj1979]

I'm new to I2C programming, and I need to find out / learn how to program R/W RTS5450 and RTS5441.
What hardware and software do I need?

[michdundee]

Hi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
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[s_henya]

Hi guys,

Need your help with clearing out BIOS Password.
Laptop model: TOSHIBA SATELLITE Radius 12 P20W-C-10D
P/N: PSPVVE-00300WTE
SN: YF069816S
Motherboard: H000095820

Thanks in advance!...

[mon2]

Hello. Have a known good Saeco SG200E Coffee machine but the internal hose from the pump were disconnected. Would someone be kind enough to share a few clear pics of the inside of this machine so we can reconnect the hose plumbing again? Many thanks....

[mohammedsaid]

need bios dump Toshiba dynabook B45/D
toshiba
FLESSY2
A4227A...

[milui]

Brand: Acer
Model: CB314-1H
BoardA0ZBCMB6E0
Rev: E

[gjgib]

Hi, looking for this Schematic/Boardview. Only found the MT one but need the 9020 SFF.

Thanks in advance!

Btw: seen in repairlap.

[NConstantinou]

DEAR ALL

i need bin file for above board.

Laptop turns on but no screen.

thanks...

[Amraks]

Looking for this schematic
Thanks in advanced who ever has uploads this.

[Cornboats]

I've several amplifiers of different sizes which are faulty. I haven't fixed them because I haven't a clue. This is the smallest culprit. 240v in (UK) and 12v dc to the board. Small neon lights when power button is on. Different dc voltages across all of the capacitors. Where do I go from here?

[lrservicios]

Hi all good morning i have a Toshiba Satellite Pro R50-EC-132

PART No: PT5A1E-1HQ038CE Serial Number: 70135628H

ASympthon is computer turns ON an it shows Logo of Dynabook as stated on picture but doesnt continue to boot

Please check Bios for me becaus i think is corrupted:...

[Test asus]

Hello,

My laptop's touchpad is not working. I have tried software, touchpad and touchpad fpc. I think the motherboard is faulty, can you share motherboard schematics or how can I fix the problem?

Model
X542UR-GQ272T

Part No
90NB0FE2-M03490

Part Desc
AS X542U 7500U/1DG5/12G/TU

Part Specification
X542UR-1BGQ/8SL/V/WAC/A08

Have a good day,...

[Arshad alam4659]

how to program mec 1416 -nu
EDI54 la-g712p rev 1.0

[trepachka]

Hello,

I have this Thinkpad T15p Gen 3 laptop. It starts normally with keyboard lighting up, I can hear the fan starts spinning, amps quickly reach about 1.7A without the battery, CPU gets hot. However, it is not posting.

I suspect the BIOS is corrupted. I am providing 2 BIOS files as I see 2 BIOS 256Mb chips. I am also providing a photo of the chips' location on the motherboard.

Model: Thinkpad T15p Gen 3
S/N: PF-45G6VM
Type: 21DA-000PUS
Motherboard: NM-E221

Thank you....

[wrongpolarity]

Hi All,
I have been struggling to repair a HP 8460P laptop. Motherboard does not turn on. I have traced the problem to what seems to be a missing signal KBC_PWR_ON causing Trip2 on IC 5006 (TPS51123) to be activated.

The following components have been replaced but the problem remains.
C5191
C5192
U50006

Listed below are voltages appearing on U5006 when the Motherboard is supplied with power from a bench power supply for the first 15 seconds or so.

Pin 1 (Trip1) = 0.65
Pin 6 (Trip2) = 0.65
Pin 8 (Vreg3) = 3.31
Pin...

[pimpjersey2019]

help me bypass frp HUAWEI Y7a..can anyone give software for this...thanks

[Txus3232]

hi Can you also help me with computrace? The BIOS is unlocked but has computrace.
service tag CH0TL33
mother board EDC41 LA-G891P REV 1.0 (A00)...

[Canario137]

Hi!

My [B]Lenovo Ideapad 3-15ACL6[/B] just got bricked after updated the bios a few weeks ago, today i was trying to flash a new bios in Crisis Mode (just to try) but idk how do i can find the bios .fd /.rom.

*I need to flash an old bios or could be latest bios?


Saw some tutorials that need to extract two times to find the real bios .fd/.rom, used innoextract for the first one GLCN57WW.exe and the second GLCN57WW.exe that inno extracted doesnt work, 7-zip says "Cannot open file as archive", so i cant complete the tutorial.

...

[ThisTimeNextYear]

[SIZE=12px]Hello world,

Just wondered if anyone could help shed some light on a Razor laptop which I'm struggling to repair for a friend.

Razor RZ09-01963w31
CPU - i7-7500U - 16GB - Intel® HD Graphics 620

Codes from motherboard:
H3 MB
MP V3.0
20170421
E327208


[U][I][B]SYMPTOMS:[/B][/I][/U]

So far the most life I've seen from it is powers on, keyboard lights up, no screen life at all, then powers down; after which any attempt to power it on again results in the power light blinking once and then...

[Nick Nougat]

Hi, I'm currently trying to diagnose a Gainward RTX 3060 12GB "Pegasus" that I bought as damaged. I know nothing of its prior history.

A boardview for an MSI model, which matches the board layout apart from some resistor values I saw, was already uploaded in the past if you'd like to have a look (I used file V397_70). See [URL="https://www.badcaps.net/filedata/fetch?id=2101580"]www.badcaps.net/filedata/fetch?id=2101580[/URL]

It does not have any shorts but it's not detected by the system (i.e. not even shows up in the output of lspci and the CS pin...

[doomste]

Hi guys!

I have the following Lenovo Thinkpad T14s NM-C791
Serial Number: PF-2CNJYM
Type Number: 20UJ-000WUK

Power button blinks 3 time and nothing happen, there is no boot. EC_RSMRST# is missing. You're my last chance, I hope you help me


[ATTACH]n3259309[/ATTACH]...

[Pilotow 67]

Hello !!
i have a problem with the bios to a Panasonic CF-19
model:Cf-19rdt5a1m mk4
serial:1CKSA49802

with faulty bios chip MX25L6445e and I need a dump for this laptop model !!
Thanks

[abajor]

Trying to identify this part if anybody has any idea what it might be, would be a good start to repairing this laptop....

[prototypedoc]

Hello guys,

Got my hands on this laptop and started troubleshooting. The only thing I know is it turned off and never came on. No lights and not coming on.

Started doing some checks and found the main rail present everywhere. Something weird though as the gate of the first input mosfet is 3.7V and the output is 20.3V.
Tried to trace the gate and it looks like it's connected to pin 61 on the io. Is the IO supposed to monitor the gate voltage?

5V and 3.3V are missing from the coils. Found by lifting PL6202(on the 5V rail) the clicking fet sound goes...

[mon2]

Hello. Coming to you from the laptop forum. Have a client with the Fortinet 50E that has 320 Mbps as internet input speed but only 20 Mbps output on each and every downstream port (using FAST.COM to benchmark).

Reseller is stating the Fortinet is 'worn out' which does not sound logical at all unless the flash memory is 'worn out'. They, of course, want to sell another + onsite installation fees.

Can anyone share feedback on this unit? What can cause this sluggish behavior. From our knowledge, this device is snooping on the traffic to halt viruses / hack attacks, etc....

[paparazzo79]

Hi guys.
I ordered used LG 34UM88 monitor which should come with 19V 5.76 A adapter from LG.
I payed for monitor but sadly I got scammed it came with 14V 58W Samsung adapter.
Luckly I did not even tried to turn on monitor, but I think they used the 14V adapter.
Is it possible to use 14V adapter and what already damage could happen?

[mikkele86]

Hello good people of badcaps.

im back with another question

Im trying adjust the current bias accordingly to the manual, but my meter is showing the same value no matter whatever position VR-804a/VR-804b is in.

DC bias is adjusted and is working as intended.

Is my settings on the multimeter wrong ? or should i look for a bad component

note: all transistor are new

Picture from manual
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[NConstantinou]

Dear all,

the laptop is charging, i have 3.3,5v and 1v on coils. when i switch on the fan spins and stops.. i tried removing the battary and hold the power button by removing power cable for 60 sec but nothing.
does anyone has any suggestions!

i noticed the sw3 on board is broken completely.

thanks

[mitchw]

Looking for a BIOS for HP 255 G8 (HPL51 LA-L021P).

The main problem is that the laptop will crash while booting to OS. Will crash even on booting from USB, like a Ubuntu or to a Windows 11 installer.
Before junking the board I would try the new BIOS if it does anything.

Thank you!...

[debidoobs]

Hello,

im actually trying to save a d1500 delay from yamaha. I found the service manual but schematic is missing and BOM list is a bit unclear as components listed have no reference linked to the pcbs... In my case, one zener diode was broken (114 code on the pcb in attached file) and couldn't be repaired : it was a zener type package. In the BOM list i found 3 reference on this board : 1S555 (can be replaced by 1N4148), RD4.7EB2 (approx 5v rectifier), RD7.5EB3 (approx 7v rectifier)...

Actually the cathode goes to VCC of sram M5M5118P, without this diode missing, i have...

[nickstyle]

Hi, i have this laptop and in device manager the RTX 3050TI has an exclamation mark
Tried windows 11 and 10 and same thing
Any ideea what is the problem?

[orgamisho]

Hello!

I am still learning on laptop repairs and I am currently working on the above mentioned device.
Currently the laptop is dead (no power on). The device takes 2-3 mA when 20v are injected onto the charging plug.
Main power rail is present (20v), but no other power rail is present, including the 3v and 5v. I noticed that when no power is connected the 3v and 5v coils have large (normal) resistence to ground, but when I plug the power, both are being shorted to ground.
I wonder is that an expected behavior or there is an outer protection activated.

...

[MDSI]

Hello.

I have an Asus X705UV which no longer starts since the last Windows update. I suspect Windows Update of having tried to update the bios and having corrupted it, because currently, I have the charging indicator when I plug in the charger and I have the power indicator when I press the on/off button but nothing more, not even a fan running.
Could someone check this bios and if it is broken, repair it?

Sorry in advance, google translate is useful but not perfect. 😂

Thank you in advance ! 🙏...

[fedeRaider]

Hello everyone

My TV no longer shows signs of life, but if I unplug the motherboard, the backlight works.

I bought a CH341A USB Programmer, and this is my dump (BN41-02568B):

Could someone help me fix it?...

[Zhab27]

Всім доброго дня!
Режиму очікування немає.
Перепаяв SPI 25Q40 і прочитав прошивку. У дампі перші байти не стираються. Записав дамп донора BN94-12399N, режим очікування з'явився з , але телевізор все одно не виходить в робочий режим. Будь ласка, допоможіть відновити рідний дамп!

[Rofix]

Hi everyone, I wanted to kindly ask you for help, I have a problem with my Dell vegas/turis mlk kbl-r 17841-1 wx2rr PC, it turned off and I was no longer able to turn it back on, I'm checking the various voltages, unfortunately I found the 19 v up to the input components PU4411, PQ4401, thank you all for any advice
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[alford111]

Hi. Can any one help me with a schematic for Predator Helios 300 G3-571-77QK. Many thanks in advance.

[Drake328]

Hello,
I recently got a PS5 with an EMD-032 board and someone before me “tried” to change the HDMI port. Unfortunately, a few SMD components are now missing, see image. the top one should be a 100nF cap. but what is the lower (0Ohm resistance?)
[ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3258823}[/ATTACH]...

[vpower]

Hi,
I have this dead laptop, if I plug the charger I see only charging led light blinking 3 times.
I disassembled it, removed the battery and checked with my multimeter:

red arrow input connector 19v

green arrow first mosfet drain 19v

white arrow first mosfet source 3v

yellow arrow second mosfet 19v

pink arrow 3v

blue arrow third mosfet shorted to ground

current resistor 3 volts on both sides

Any advice? I have a thermal camera and I could inject low voltage if needed.
Thanks...

[sauce]

Hi,

I am trying to help someone to repair a mac mini A1993 820-00939.
The mac mini won't power on.

Voltages on U7800 are all good except
PP1V2_PRIM 0v
PP1V_PRIM 0v

PP5V_G3S is missing too

Someone has the power on sequence of this ?

Thank you on advance.

Eric...

[baiceanu_stefan]

Hello, I have a legion pro 5 16arx8 serial number pf4bf4aw mb code nm-f251 rev1.0 which was dissasembled by the client for cleaning. Now it does start but for 20 secs after that fans run at maximum and then shut down. Found PU8302 burned but cannot identify it the part. It is written eHFAA on it but didn't found any info, no boardview, nothing. Can anyone help identify the part so I can order it from somwhere? Ataching some pictures of the motherboard, serial number and part. Than\k you...