Need schematic and boardview Acer CB314-1h

[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
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"444","title":"image.png","width":"687","data-attachmentid":3259133}[/ATTACH]...

[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
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tIMG_20240424_111713072.jpg Views:\t0 Size:\t855.7 KB ID:\t3258866","data-align":"none","data-attachmentid":"3258866","data-size":"custom","height":"843","title":"IMG_20240424_111713072.jpg","width":"1124"}[/ATTACH]...

[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...

[syedlaiq]

Hi All,
i have This HP consumer series laptop HP 15-ac with Motherboard number La-c701p.

Issues - Low Load (only200ma),Powers on but No Display, capslock blinking every 4sec.

Tried - Fresh Clean Bios, ram ic change, crystal change.
All Voltages Present.

Thank sin Advance...

[abajor]

I've gotten into the habit of Looking at peoples Mechanical Hard drives with a Ubuntu thumb drive to boot their system.
I understand the raw values are not really uniform between manufacturers, but I have noticed that high seek and read error raw values at the very least correlate to a drive that is going to have sub par access time, and extremely slow OS booting.
The odd thing is I've often seen very high seek and read error rates on drives with fairly low on time.

Does anybody have any other takes on evaluating smart data? I've used Crystal Disk Info, It seems to present...

[reformatt]

Couple of Windows 11 machines have come in this week with the same issue. After you login, the taskbar will not appear (or just be a black bar). No access to Start Menu. Task Manager (use CTL+SHIFT+ESC) works, however the Performance stats seem stuck with CPU on 100% for Task Manager itself. Trying to exit Task Manager result in it hanging as well. No issue if you boot into Safe Mode.

First machine, tried many things to no avail (System Restore from last Windows update, rebooting in Diag mode, trying to reinstall Windows Apps via Powershell). In the end, I did an in-place upgrade...

[Faroks]

Hello guys,

i got this laptop from a friend to solve a problem.
The Laptop got a black screen. After turning it on, the keyboardlight is on and the fan working sometimes but nothing to see. The LCD is fine.
I did the LCD selfttest.
I think my friend tryed to update the Bios and failed.

I have a TL866 ll Plus and ordered a SOIC8 clamp. I want to flash the Bios on circuit.
I don't know which of the two chips are the bios.

Near the CMOS Battery: MXIC MX25L8006E
Near the CPU: AH1721 259(8)128CSIG E7A026 the 9 can be a 8.
...

[wwbielsko]

Hi,
I got corrupted bios bin file, which way is correct to repair.
File puts errors on Me Analyzer and cannot open in FIT.

To open in FIT I made:
1. Extract MFS and EFS using MEAnalyzer from other bios file with the same parameters
2. put it in HxD to my file
3. MEAnalyzer shows 1 error after that
4. file opens in FIT

and:

A:
1. extract current dell bios on website
2. put System BIOS with BiosGuard v1.30.0.bin using FIT
3. MEAnalyzer OK no errors
(this version shows only logo at bootup - freezeing)...

[abajor]

I have the above mentioned MBP, quick scan with thermal camera revealed that only U3200 was heating up. I found that C3208, C3219 and C3205 were all reading ~6.8ohms to ground.
so I swapped U3200.

I connected the PSU again for a quick check on thermal it's drawing about the same amount of current but now I'm seeing only heat radiating from U7800 and the T2 chip from under the black shielding fabric, and the bottom of the board.
It's hard to judge the actual temperature without removing the shielding.

Does anybody have any insights?

PPBUS_G3H is...

[tommy97]

Hi,

I've got a problem with laptop Asus ROG GA503R, laptop power on (it does take a while) show asus logo and then it stuck on the black screen noticed that laptop goes to windows. I've tried new LCD, no difference, I can go to BIOS, laptop would stay on can change options etc., tired boot it externally with disconnected LCD and it only display on BIOS, attempt to boot to Linux, same problem.

I would provide with board model tommorow....

[kalemaroni]

A customer called me up and said that half the screen was like a shadow - presumably the backlight has partially gone. I've never done a repair like this on a monitor, only circuit board based repair on Macbooks etc - is it something that's doable or generally not?

[queenriver]

I had this Lenovo Flex 3 1580 worked fine. Suddenly it won't power up. After open it up, I found it can start with lid closed when I plug in the power adapter. (No need to press the power button) If the lid is open, it won't start after plug in the power. After it is powered up, the on-screen keyboard works. But the mouse pad and physical keyboard won't work. The power button won't do anything.

From the symptoms, it looks the keyboard control is not working. The logic of the signal from the lid sensor is reversed. If just one thing is broke, what is it?...

[Shamitha]

Can any one find me the bin file of Asus X540UA. Core i3 8 gen and on board vga. Bios are locked and need to flash new bios. Please help me !

[madan1]

Hello everyone.
I'm troubleshooting a cisco switch, which seems to have an issue with the PSU.
The psu has the following power rails - +12v, -53.5V and +3.3V
When connected to power, the +12 and -53.5 seem to work fine, but the +3.3 starts at ~3v and then goes down to ~0 (I guess this is the cap discharging). This happens both when the cable is connected and not to the switch board.
Any ideas what might be causing this behavior?
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3258494}[/ATTACH]...

[timonix20]

hello everyone I am looking for a solution for my tv, I think corruption of the eemc,

the TV starts, LG logo, then nothing (rear backlight)
no reaction to rear command or infrared


the usb procedure that I tried on the LG site is a procedure with the screen and the remote control so I can't.


I have a chance with a usb procedure or other if you have .bin

if any people have this main board

Sony LG 60la620s EAX64797004 (1.1)

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"1713895782944.jpg","data-attachmentid":3258485}[/ATTACH]...

[newjan]

Toshiba portage x30-e-13m, FURRSY1 A4481A1_Main 16MB...

[sda sad]

Hope this is the right place, someone can help me.
My laptop started having a really strange problem....
When I turn it on the fans start working at a crazy rate and with random breaks...
They can work for say 10 seconds and stop for 2 seconds and then turn on again for 5 etc...
And it's from 0 to 100%. I tried to install AIDA and did the processor chip test and the graphics did not exceed 70 degrees and the fans were not even close to working at the power they work randomly.

The model of the computer:
Xiaomi Notebook Pro X 15 OLED (A30)

...

[maricm]

IH all, Got this vizio tv P65-E1 from FB marketplace hoping to be able to reflow mainboard as selerrstated that it was diagnosed with bad mainboard. However they must have tried to repair tv by putting another board in and they put P55 board in .
Tv starts and responds to remote but screen does not look right , It looks like low resolution with some image ghosting. Now not having original board I dont know what to order ? Any advice how to figure out what exact board fits this tv ?
And another question Would it be possible to adopt this board to this tiv by chagning eeprom or tcon...

[MBaads]

Hey friends.

I bought a used Microsoft Surface Pro 6 . Good condition, only downside is that the xHCI complient USB Host Controller gives code 10.
I have tried everything that seemed immediately obvious to solve this, like driver updates, roll back OS versions, run all MS's diagnostics tools etc.

The kicker: It works in UEFI just fine.
It works in Grub2, too.
I can even boot off a USB recovery drive thumbstick. However, after it has loaded the image and starts the OSs drivers, it fails.
(This is actually how I got Windows back on it, by putting...

[abbassink]

ga503qs rev3 ok 100%...

[Biostechnology]

11254-3 charging problem
off condition enable to charge . when i turn on unable to charge batter plz help...

[Denisgan22]

Hello everyone,I need to unlock my bios password.Please help me.
Model Aspire 3 A317-53G-324G
S/N NXADBEU0041441A2693400...

[notrespond]

the problem only stuck windows logo, i was change NVME and RAM can't solve the problem, maybe bios problem, need rebuild to solved the problem.
Mainboard Code HLG30 LA-L916P Rev 1.0

SN : MP28NW8T
MTM : 82S900K8JP...

[ductranvinh]

Version Bios: 2101
It working back up bios and me...

[zurvanielle]

halOoh Guys, good day.. need ur help here...^_~ anyone who got a working or clean bios bin file for
DELL Inspiron 14 7000 EDW40 LA-H451P REV 1_0
thank u n advance ^_~
service tag: 8SPMXY2
SERIAL: 19150372442...