Dear forum,
I'm stuck with this old TV unit.
PSU: 17PW04-1
MB: 17MB62-1
Symptoms:
- Blue LED constantly blinking when connected to AC.
- Only sigh of life is beeping when touching the capactive buttons on the front.
Diagnostics so far:
Checked the PSU output voltages:
12V present
5V present altought its only around 4.2V
3V is present measured 3.4V.
I check TP 202 which is for the short circuit protection: 0.606V on diode mode
Since I met with some vestel models before with similiar symptoms...
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-
05-03-2024, 03:18 AM
-
dont work, only 3 asterics on lcd
It seems like a BIOS problem in the support of the page they have to update from Windows, but this is not even recognized as a device on the computer, I am looking for help I think you can rewrite the NAND memory again but I don't have the accessory
If anyone with a sililar case or experience has something to comment on, it is welcome
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3266527}[/ATTACH]
Unfortunately they provide a *.fls...Today, 11:11 AM -
Hi! I have a corrumpt bios for this laptop
Model: Toshiba Satellite L50-A-14K
Motherboard: tmt YA-4A1 E114139 Rev 2.1
H000057570
No power, only led charging
This laptop have got two winbond
25q32fvsiq and 25q16dvsig
Thanks for all reply!Today, 11:10 AM -
Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you
VSYS_OUT 9.2v
Meter in resistance mode auto range 6M ohm ok
NORMAL BOARD VSYS_OUT 10.2V
PQ101
PIN 2 20V
PIN 7 0.004V
PIN 6 6V
PIN 5678 0V
PQ102
PIN 567 0V
PIN 9 0.004V
PIN 234 9.2V (VSYS_OUT)
PU101 BQ25700ARSNR
1 VBUS 20V...Yesterday, 10:48 AM -
I like to get one on mouser/digikey along with a order i plan to place
i have 2 breadboards one from ebay w/ horrendous contact resistance (to the point on NC)
and another from ali-express that feels like i am going to break my micro controller putting it into the thing
any suggestions? (note that i am not spending $50 on a 3m board)04-29-2024, 08:50 AM -
there is no reaction, it hangs at 20 V/0A. There was a little corrosion in the u7650 area. Replacing the u7000 did not help. Tell me, what else could it be? PPBUS_G3H=12.9V
Flashing the bios with a clean region also did not work!Yesterday, 04:31 PM -
Hello there friends
Can someone Clear this bios file for me ?
serialnumber: 5CG33778XV
productid: 709Z1AV
Thanks in advance...Today, 05:03 AM -
Hello, I have a da0h9bmbcd0 card which had a liquid spill, there was an area in which corrosion damaged the power rails but it is almost undetectable to where they are connected, I looked for the schematic diagram of the equipment but it is not available so if you can help me I would appreciate help knowing which integrated part is the one that had the damage....Yesterday, 06:01 PM
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hello,
need bios dump for asus fx570u
attached the original bios,
the computer run and enter bios, but not windows boot
and the problem is that all the bios parameters are jamed
thank you...Today, 09:14 AM -
NEE BIOS FOR HP ZBOOK 15 G5
SERIAL NUMBER 5CD9015B7K
BACKUP NOT AVAILABLE
IC IS DEAD
32MB & 16MB BIOS PLEASE...Today, 09:05 AM
-
Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you
VSYS_OUT 9.2v
Meter in resistance mode auto range 6M ohm ok
NORMAL BOARD VSYS_OUT 10.2V
PQ101
PIN 2 20V
PIN 7 0.004V
PIN 6 6V
PIN 5678 0V
PQ102
PIN 567 0V
PIN 9 0.004V
PIN 234 9.2V (VSYS_OUT)
PU101 BQ25700ARSNR
1 VBUS 20V...Yesterday, 10:48 AM -
Hello there friends
Can someone Clear this bios file for me ?
serialnumber: 5CG33778XV
productid: 709Z1AV
Thanks in advance...Today, 05:03 AM -
there is no reaction, it hangs at 20 V/0A. There was a little corrosion in the u7650 area. Replacing the u7000 did not help. Tell me, what else could it be? PPBUS_G3H=12.9V
Flashing the bios with a clean region also did not work!Yesterday, 04:31 PM -
This laptop is the same laptop I was working on [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/3262622-hp-14-dq0055dx-bios-problem-pending-image-being-cleared-loop"]in this thread[/URL] and I wasn't sure if I should post a new topic or post in that thread because I already solved the issue that thread was discussing and this is a completely different issue although it is dealing with the same laptop. I decided to make a new thread since it's a new issue, but please move...Today, 08:06 AM
-
dont work, only 3 asterics on lcd
It seems like a BIOS problem in the support of the page they have to update from Windows, but this is not even recognized as a device on the computer, I am looking for help I think you can rewrite the NAND memory again but I don't have the accessory
If anyone with a sililar case or experience has something to comment on, it is welcome
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3266527}[/ATTACH]
Unfortunately they provide a *.fls...Today, 11:11 AM -
Hi! I have a corrumpt bios for this laptop
Model: Toshiba Satellite L50-A-14K
Motherboard: tmt YA-4A1 E114139 Rev 2.1
H000057570
No power, only led charging
This laptop have got two winbond
25q32fvsiq and 25q16dvsig
Thanks for all reply!Today, 11:10 AM -
Shown in picture, trying to replace a MOSFET and looks like I knocked this off, in guessing it's the same as one next to it. Has 1.8 Mohms. Any way to bypass it? It's on the hot side
The component circled is the one there, the arrow is I think another of same component?Yesterday, 11:47 AM -
hello,
need bios dump for asus fx570u
attached the original bios,
the computer run and enter bios, but not windows boot
and the problem is that all the bios parameters are jamed
thank you...Today, 09:14 AM -
NEE BIOS FOR HP ZBOOK 15 G5
SERIAL NUMBER 5CD9015B7K
BACKUP NOT AVAILABLE
IC IS DEAD
32MB & 16MB BIOS PLEASE...Today, 09:05 AM -
Hi, I have this laptop, it is completely dead, no charging light when connected to a working charger.
Can anyone help me with some hints for troubleshooting this laptop?
Thanks in advance...Today, 05:28 AM