stuck in on off loop....fan runs for a second then turn off and this loop keep on .......anyone slove this before
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Hi, I wonder if anyone can help me fix my Lenovo Legion 5 (15ITH6H) laptop. Basically, after a windows update the computer would not boot anymore. When powering on the laptop the screen has no backlight and nothing would show up, using an external monitor did not help. However, the laptop would still spin up the fans and turn on the keyboard backlight. The keyboard backlight intensity function key would work and the power button led and the charging led are also working. I've tried every possible combination of key press and power button hold down time but did not change anything. At this point... -
DEVICE: Laptop
Model: lenovo thiinkpad t410
Board Id: 09A33-3 48.4FZ09.031
NZM1H-8
ISSUE: NO POWER
From the first mosfet 20v is not passing through, pin 4 has 19.5v and the first mosfet is a P-CHANNEL mosfet (SI7121DN) i think the pin 4 should be lower to active the 1st mosfet to allow the 20v to pass to second mosfet ive check all for shorting in the board , i did;nt find in rails, so ive check the schematic and im suspecting that, my Q61 is faulty due to its pin 1 is 0.47ohms? im not pretty sure, hope someone can help me figure out this issue.
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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 -
This specification for the Lenovo IdeaPad 120S Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 120S boardview and 120S schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo IdeaPad 120S...09-06-2024, 06:40 AM
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This specification for the Lenovo IdeaPad 320 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 320 boardview and 320 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo IdeaPad 320...09-06-2024, 06:06 AM