Hello everybody,
I have seen a lot of posts about the A2237/A2338 about the 5V not boosting up to 20V issue, but none of them seem to have the exact problem as my board does.
My PPBUS_AON was measuring ~9.32V and the board kept power cycling, so I removed the fuse F5200 to measure PPVBAT_AON_CHGR_REG and indeed it was still 9.32V, but the board stopped power cycling. Then I measured U5200 values and got this:
U5200:
PPDCIN_AON_CHGR_R = 5.144V
AUX_DET = 1.287V
VDD = 2.767V
VDDP = 2.767V
AUX_OK = 0.848V
AMON = 0V
BMON...
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by JonnxToday, 12:00 PM
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by farouk_1994Hello please need bios unlock for hp elitbook 845 G10
Sn:5CG41056NC...-
Channel: BIOS Requests ONLY!
05-23-2024, 07:06 AM -
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HELLO PLEASE I NEED THE DUMP OF THIIS MOTHERBOARD
THIIS IS THE OLD DUMP FOR MY BORD
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by OmronHello Guys! I have trouble with my car radio Kenwood KDC 3051G I hope someone more knowledgeable can help me, I tried everything in my power that I stumbled upon online.
My radio is permanently in demo mode, it says Press Volume Knot Cancel Demo and when I press it nothing happens.
- Tried to unplug radio and plug it back in into power,
- Tried to reset radio by holding reset button key for 5,10,30 seconds while in power and without power, plugging it back in, it wouldn't work.
- Tried to hold 3,6 while turning it back on and then pressing 1,2...-
Channel: Troubleshooting Audio Equipment
05-23-2024, 01:27 PM -
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Hi everyone!
Hope you're all having a great day, and thank you very much for stopping by and taking the time to read this post to help me with my parents' Samsung TV.
My issue: No backlight.
Model: QE82Q70RAT
Type No: QE82Q70RAT
The TV was already serviced by Samsung once under warranty for the exact same issue, but six months after the fix, the backlight went out again. Now, Samsung is asking for nearly the same price as a brand new TV to fix this with the same 6-month guarantee.
So hopefully, I can fix this cheaper.
...05-22-2024, 06:56 AM -
by mazloumhi
I did bios update for this laptop, but something went wrong and I lost the serial, model even mac adress:
Model: 15-da0103ng, serial: CND8488CXW, ProdID= 4ET85EA#ABD.
I tried to use hp bios configuration tool, but always i get access denied and cannot set config file
I read my bios:...-
Channel: BIOS Requests ONLY!
Today, 06:32 AM -
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by vincelxOn this board I have no backlight, but I can see that an image is present when I put a strong light behind the lid.
On LCD connector:
PPVOUT_S0_LCDBKLT =0V - resistance to ground on this pin: 163ko
LCD_HPD_CONN =2.5V
PP5VR3V3_SW_LCD =5V
EDP_PANEL_PWR_OR_PSR_EN =3.3V
EDP_PANEL_PWR =3.3V
LCD_PSR_EN =0V
EDP_BKLT_EN =3.3V
EDP_BKLT_PSR_EN =3.3V
LCDBKLT_EN_L =12.5V
On U7700:
VDDD =5V
VDDA =5V
EN =3.3V
SD =12.4V
VSENSE_N =12.6V
VSENSE_P =12.6V
Any suggestion on...05-22-2024, 06:42 AM -
by gen.ohmhi,
does anyone have schematics for a HP Elitebook 840 g9?
The specific motherboard model is: 6050A3299901-MB-A01 but schematics close to that are also appreciated.
thanks in advance!!-
Channel: Schematic Requests ONLY!
Today, 08:46 AM -
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by rtstormHello my vacuum cleaner dock died, 0V on output. I replace the caps but still no voltage. I found out that this resistor is broken (showing 0 Ohm) do know the value of this? Is this really 0 Ohm resistor?...Yesterday, 10:07 AM
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HELLO PLEASE I NEED THE DUMP OF THIIS MOTHERBOARD
THIIS IS THE OLD DUMP FOR MY BORD
MY MOTHERBOARD TURNED ON BUT DOES NOT DISPLAY...-
Channel: BIOS Requests ONLY!
Today, 11:04 AM -
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by PITERPENYHello. When you press the caps lock, the green LED does not work. At the same time, caps lock in the system works and switches letters from small to large. what do you advise?Today, 11:02 AM
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by cheeky2I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
Obviously the same LVDS connector for the screen connection...Today, 03:27 AM -
by mazloumhi
I did bios update for this laptop, but something went wrong and I lost the serial, model even mac adress:
Model: 15-da0103ng, serial: CND8488CXW, ProdID= 4ET85EA#ABD.
I tried to use hp bios configuration tool, but always i get access denied and cannot set config file
I read my bios:...-
Channel: BIOS Requests ONLY!
Today, 06:32 AM -
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by lcdcaps1Hi
All
Does anyone have a board view for
LA-1701 REV 2.0 HP Compaq nx700, schematic and board view
Thanks so much-
Channel: Schematic Requests ONLY!
Today, 06:24 AM -
-
Hi everyone!
Hope you're all having a great day, and thank you very much for stopping by and taking the time to read this post to help me with my parents' Samsung TV.
My issue: No backlight.
Model: QE82Q70RAT
Type No: QE82Q70RAT
The TV was already serviced by Samsung once under warranty for the exact same issue, but six months after the fix, the backlight went out again. Now, Samsung is asking for nearly the same price as a brand new TV to fix this with the same 6-month guarantee.
So hopefully, I can fix this cheaper.
...05-22-2024, 06:56 AM -
by gen.ohmhi,
does anyone have schematics for a HP Elitebook 840 g9?
The specific motherboard model is: 6050A3299901-MB-A01 but schematics close to that are also appreciated.
thanks in advance!!-
Channel: Schematic Requests ONLY!
Today, 08:46 AM -
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by Maxpower3Hello everyone.
Here is the bypass solution for several Lenovo ECs.
This has worked on many ECs.
Only works if password is contained in EC
I succeeded on many models
[URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/104872-lenovo-l15-gen-2-ryzen-password-removal-w-vertyanov-successor?p=3217086#post3217086"]https://www.badcaps.net/forum/troubl...86#post3217086[/URL]
[URL="https://www.youtube.com/channel/UCeF58jC2Bt_adKcguvynjeA"]https://www.youtube.com/channel/UCeF...t_adKcguvynjeA[/URL]...-
Channel: BIOS Requests ONLY!
03-17-2024, 11:57 AM -
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by MozwaldHi can anybody help me with a Bios password removal on a ASUS UX425EA-KI560T /N:M6N0LP02P89724B NB2555_PCB_MB_V4
I have searched under Bios guides and Methods, extracted the bios and used a Hex reader to search for the correct string but i simply cant get my head around it.
Original Bios dump attached...-
Channel: BIOS Requests ONLY!
Yesterday, 01:54 AM -