Hi there,
I got this laptop which was not working at all. When attached to an amp-meter, the meter wasn't working at all also. I quickly found out that the PD-Power switch was gone and fully shorting to ground. After replacing that (NX20P5090) I got live back into the laptop.
Now the battery is charging, charge indicator is working and the power led is blinking 3 times when i attach a charger. but, unfortunately, this is it. When i push the power-button, the power led turns on, but that's it. No display, no beep, no fan spin, nothing (but cpu gets warm).
I tried flashing a new...
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by CapLeaker
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04-19-2024, 03:01 PM
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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?...Today, 06:05 AM -
For those in 220V locales, anyone power their SMPS with DC, and how high of a voltage is okay?
What kind of PSU?
I suspect that 240V * sqrt(2) = 340V DC is probably fine because that would be about how much the the primary rectifier ends up with peak voltage. Just wondering, other than input capacitor voltages, can one go up above this 340V without damage? Will that input capacitor be the upper bound?
Wondering if exactly that, can I feed near 400VDC into bona fide specced at 220V SMPS without damage?
Currently have a 120/220V switchable SMPS I want to see if I...04-22-2024, 08:03 PM -
Hello. I will be buying new apartment to live. But fuse box is older. Not the newest.
And my question. It will be fine to plug pc in this new apartment with that fuse box,i think it is aluminium,right?
PC WILL BE: Rtx 4090,14900K,1600W PSU
It looks like this ( screen from internet ). Looks like this,not sure i dont take a pic from there. Can i plug pc with that one?
screen of this:
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tGetty-Images-1345734173.jpg Views:\t0 Size:\t236.3 KB ID:\t3244496","data-align":"none","data-attachmentid":"3244496","data-size":"full","title":"Getty-Images-1345734173.jpg"}[/ATTACH]...03-29-2024, 05:37 PM -
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!...Today, 10:03 AM -
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]...Today, 10:19 AM -
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....Today, 12:51 PM -
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?Today, 11:04 AM -
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]...Yesterday, 01:58 PM -
Hello, I have the following laptop:
HP Pavilion Aero 13-be0003ca
ProdID: 2L7M8UA#ABL
S/N: 8CG150GPV6
Motherboard information is below:
HP Part# M52826-601
448.ONE04.0011
203016-1
It needs BIOS repaired.
I created a flash drive using HP firmware utility and then had it plugged into the computer. I did the standard WinLogo->B key->Power button press. A window appeared and immediately began flashing the bios using the flash drive.
But I don't think it finished all the way. So, now when I attempt...04-21-2024, 10:57 PM
-
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!...Today, 10:03 AM -
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?...Today, 06:05 AM -
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?Today, 11:04 AM -
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 ! 🙏...Today, 06:38 AM -
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]...Today, 10:19 AM -
Hi. Can any one help me with a schematic for Predator Helios 300 G3-571-77QK. Many thanks in advance.Today, 02:35 AM
-
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]...Yesterday, 01:52 PM -
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....Today, 12:51 PM -
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?Today, 08:51 AM -
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!Today, 05:55 AM