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]...
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-
04-24-2024, 03:48 AM
-
Hello everyone!
I have a surface pro 4 (1724) with corporate management set up (in this case, I understand it's called SEMM). In the operating system installer (Pro version), after connecting to Wi-Fi, it asks me to enter the company system. If I don't sign in, it won't let me continue (similar to enterprise enrollment on chromebooks). This can be avoided if I install the Home version instead of Pro, and then upgrade to the pro version, but this is not very elegant. I would like the machine to be as it should be in factory condition. That's why I would like someone to remove this restriction...Today, 06:39 AM -
Hello,
I've been working on this laptop for a few hours and I am stumped. Still learning this kind of troubleshooting. Hoping someone can help.
[U][B]Computer Information:[/B][/U]
Model: Lenovo IdeaPad Gaming 3 15ARH7
Motherboard model: NM-E211 Rev: 1.0
Schematic, Boardview, & FlexBV Free - Attached
[U][B]Problem:[/B][/U]
The computer does not charge the battery or power on also does not power on with power adapter only. Battery have no charge on it at all (reading mV on battery charge). When connecting the power adapter...Today, 01:27 PM -
Hello everyone! Please, help me to find out missing elements and their value. I think there should be 2 resistors or 1 capacitor and 1 resistor. Place near the FBVDDQ coil [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3262143}[/ATTACH]...Today, 01:19 PM
-
Hi there, if anyone could have a quick look I am missing 3 components on bottom side of PCH
Mobo does not post (reset pulled down, no vcore etc).
Thanks in advanceToday, 01:19 PM -
have been looking at earth leakage clamp meters and its like a minefield out there . i wondered if anyone here had bought one that actually works properly ?...04-17-2024, 01:31 PM
-
Hi All,
i got one Macbook a1534 boardnumber 820-00244 that is taking only 5V 0,2A
I've tried to replace 3x CD3215B01 chip but it's still behaving same ....
On the board there was blown L4804 so i've replaced it.
when power is connected 5V 0,2A
PPBUS_G3H - 0V
PP20V_USBC_XA_VBUS_F - 5V
I've tried to remove F7040 as mentioned here
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/102582-macbook-a1534-820-00244[/url]
...Today, 07:48 AM -
Hi everyone. An HP X2 1012 G2 came the other day. The problem was that the device drained the battery while off. I checked and saw the current is 0.2 before start. I went and checked parts on the MB and saw that the JHL6340 IC that is responsible for controlling Type-C gets hot. Everything worked fine and I checked charging and data of type-C both were OK. I went ahead and replaced the JHL6340. Now it does not get hot, no current before start, charging is OK, but the data of type-c is lost. I mean any type-c device like flash memory or hdmi adapter etc. do not work. I tried another jhl6340 and...Today, 03:34 AM
-
I downloaded a BIOS file from Lenovo and once I extracted the actual BIOS from the executable, it is 16MB in size, but my IC(Winbond 25Q80DV) is only 8MB in capacity. I have read you can trim the BIOS file with a hex editor but I can't find any instructions on specifically what you will remove.04-27-2024, 10:55 AM
-
Dear forum, I would like to ask some help identifying the backlight circuits resistors to limit the ampere to the backlight leds.
The power supply is a BN44-00852 and I want to decrease the backlight to increase the lifetime of the LEDs.
The TV is pretty much always on, used for CCTV cameras.
I suspecting R9838 -> R9841 resistors but I'm not sure. Thanks in advance!
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tsamsung_bn44-00852_psu_sch_full.png Views:\t0 Size:\t443.0 KB ID:\t3261858","data-align":&qu...Today, 04:49 AM
-
Hi everyone. An HP X2 1012 G2 came the other day. The problem was that the device drained the battery while off. I checked and saw the current is 0.2 before start. I went and checked parts on the MB and saw that the JHL6340 IC that is responsible for controlling Type-C gets hot. Everything worked fine and I checked charging and data of type-C both were OK. I went ahead and replaced the JHL6340. Now it does not get hot, no current before start, charging is OK, but the data of type-c is lost. I mean any type-c device like flash memory or hdmi adapter etc. do not work. I tried another jhl6340 and...Today, 03:34 AM
-
Hi All,
i got one Macbook a1534 boardnumber 820-00244 that is taking only 5V 0,2A
I've tried to replace 3x CD3215B01 chip but it's still behaving same ....
On the board there was blown L4804 so i've replaced it.
when power is connected 5V 0,2A
PPBUS_G3H - 0V
PP20V_USBC_XA_VBUS_F - 5V
I've tried to remove F7040 as mentioned here
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/102582-macbook-a1534-820-00244[/url]
...Today, 07:48 AM -
anyone could share a schematics or boardview for the said model? No LCD Backlight is the main issue. tried already with other lcd.
UX21E REV 3.1
thanks...Today, 10:30 AM -
Hello everyone!
I have a surface pro 4 (1724) with corporate management set up (in this case, I understand it's called SEMM). In the operating system installer (Pro version), after connecting to Wi-Fi, it asks me to enter the company system. If I don't sign in, it won't let me continue (similar to enterprise enrollment on chromebooks). This can be avoided if I install the Home version instead of Pro, and then upgrade to the pro version, but this is not very elegant. I would like the machine to be as it should be in factory condition. That's why I would like someone to remove this restriction...Today, 06:39 AM -
Hello,
I've been working on this laptop for a few hours and I am stumped. Still learning this kind of troubleshooting. Hoping someone can help.
[U][B]Computer Information:[/B][/U]
Model: Lenovo IdeaPad Gaming 3 15ARH7
Motherboard model: NM-E211 Rev: 1.0
Schematic, Boardview, & FlexBV Free - Attached
[U][B]Problem:[/B][/U]
The computer does not charge the battery or power on also does not power on with power adapter only. Battery have no charge on it at all (reading mV on battery charge). When connecting the power adapter...Today, 01:27 PM -
Hello everyone! Please, help me to find out missing elements and their value. I think there should be 2 resistors or 1 capacitor and 1 resistor. Place near the FBVDDQ coil [ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3262143}[/ATTACH]...Today, 01:19 PM
-
Hi there, if anyone could have a quick look I am missing 3 components on bottom side of PCH
Mobo does not post (reset pulled down, no vcore etc).
Thanks in advanceToday, 01:19 PM -
Hi. I could not find a more related and active thread for Alienware 15 R1. Currently have BIOS password locked so cannot modify and save changes. Service tag: 3V69L32, Express Service Code: 8415323390. Please help me. Thank you for your time and effort!Today, 06:27 AM
-
I have an Lenovo l340 that has two missing caps on the motherboard. How can I find the value of the caps so I can replace them.
thank you in advance.Today, 01:49 AM -
I recapped the power supply recapping the Power supply with Toasty's sketch (replaced all Shotgun, as well as "Other" caps besides C4+C5+C37). Somehow the PSU turns automatically on when I insert it in the socket. Did anyone else encounter this problem?
I would be really thankful for some advice.
Best,
KorayToday, 10:34 AM