Hello. Lenovo 710-11isk NM-A771,SR2ER processor with built-in hub and video. When connected from a laboratory power supply, the current consumption rises to 300mA, after 10-20 seconds it drops to 250mA. It may stay like this for a long time, or it may fall to 10mA. The display is connected to the board, voltages are present on the processor PWM, except +CPU_VCCGT video core power supply (no PWM signal) I replaced the NCP81206 controller, but it did not change anything. All voltages are normal except +CPU_VCCGT. I also replaced the PWM charge controller because there is no signal from it to the PSYS_CPU processor PWM. It didn't change anything. I also flashed the BIOS with a clean ME region. I understand that the signal rises under load, but I have no other display to check. If anyone had a similar problem, please let me know. Thank you
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Last edited by Kharkov.A; 11-25-2023, 10:57 AM.
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Hi all
I have an Lenovo Thinkbook 14 G2 laptop with no picture
when pressing the power bottom the ESC and Caps lock led are on then the Caps lock goes off and ESC stays on but with no picture
earlier it startup but freeze at Lenovo logo
All voltages are present so I suspect the onboard ram
I flashed a disabled onboard ram Bios but with no success
There is a memid section on the schematic which I believe it concerns about the onboard ram
but I don't understand it
Anyone could help me with this issue is appreciated
(attached the memid part)... -
Hello, I have a problem with lenovo all in one ThinkCentre M800z, mb: lm70z 14072-1, ih110sw/v1.0, It turns on and post no picture, i think that the problem is with the bios, the attached dump of the main bios 8mb, there are three spi flash on the board in total.
the board stopped working after windows update and reboot.... -
Hello. Lenovo Legion 5 15ACH6H 82JU PF303BT1, board HY660 HY661 HY561 HY572 HY56C HY57K NM-D562 Rev:2.0 2021-01-25.
Starts up, the keyboard backlight lights up, the sound of the Windows 11 password entry window loading is heard, the backlight brightness is adjustable on the keyboard,
when pressing caps or numlock there is an indicator, there is no picture either to its own or to an external one via HDMI. I checked the board under a microscope, ok, clean and untouched.
I threw in a matrix (FHD, 40 pin, 144Hz), flashed the BIOS (official, took the latest gkcn65ww and one earlier... -
Greetings badcaps community,
I would ask for little help with diagnosing Lenovo V330-15IKB, which I got as dead - after pressing the power button there was no reaction, just dead.
Model: V330-15IKB
Board number: LV315KB ; 17807-3 ; 448.0DC04.0031
Serial number: R90Q6BW3
(Schematic, boardview and resistances/voltages attached)
When I got it, battery had 0V, so I am diagnosing it without battery, with original lenovo charger. After some searching, I managed to make it run by reflashing the bios - but I have no picture ( even on attached... -
Lenovo 3000 Series Schematic
Lenovo 3000 was a line of low-priced notebook and desktop computers designed by Lenovo Group targeting small businesses and individuals. It was replaced with the IdeaCentre and IdeaPad brands.
3000 C100 laptop with Braille keyboard
Lenovo 3000 C
C100, C200 - 15-inch XGA screen
Lenovo 3000 N
N100, N200 - 14.1-inch- and 15.4-inch- WXGA models
N500 - 15.4 inch screen.
Lenovo 3000 V
V100, V200 - 12.1-inch WXGA models
Lenovo 3000 G
G400, G410, G430, G450, G455, G510, G530, G550, and G560...10-04-2024, 06:05 AM