I need schematic for lkm-1 12308-2 please
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Looking for schematics: Lenovo thinkpad t540p
Hello,
the mainboard ID is Wistron LKM-1 SWG 12308-2, motherboard seems to be dead, no power on, no lEDs, unit was given +20V on the sensor pin of the power connector. Hopefully it can be repaired, because it's a very nice laptop.
Thanks for any help!
ClaudioComment
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Re: I need schematic for lkm-1 12308-2 please
Oh, thank you for moving this here and sorry, I could not find "t540p" when searching for schematics. Thank you SMDFlea!Comment
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Re: I need schematic for lkm-1 12308-2 please
Just found the Hardware Maintenance Manual for the t540p and share it for anybody interested.Comment
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What I need: Schematic diagram or service manual for the main board (logic board) of an LG UltraFine 5K monitor, model 27MD5KL.
Board details:- Part number: EAX68174501
- Revision: 1.9
- Monitor model: LG 27MD5KL (Thunderbolt 3 version)
- Photo of the board: [Imgur link] (прикрепите фото платы)
Why I need it:
The USB-C/Thunderbolt 3 port was damaged during a repair attempt. I need to identify and possibly replace small SMD components near the port (likely diodes D106, D107) that may have been damaged. A schematic is crucial for proper repair.
What I've tried...12-19-2025, 09:22 PM -
Hey everyone,
I'm currently working on a mid-70s Sharp Electronic Digital Clock Radio, Model FY-70CH. I found the service manual online, printed it out, and have been studying it for a while. My main reasons for tackling this are: (1) I want to learn electronics and figured I'd start with something I had on hand, and (2) I want to fix its issues. Right now, the radio sounds awful, has about 5V DC at the speaker terminals, and the alarm time setting doesn't work. But I'm not asking how to fix these problems.
Instead, here's what's been bugging me so far:
The schematic... -
Ii wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this... -
I'm asking if anyone has a schematic for the dag3pmb18b0 rev:b g3p board. I found a schematic of the board, but I don't have the component numbers. If anyone needs a schematic, I can send it to you, but I don't have the numbers....11-26-2025, 03:43 AM -
Hi guys, I'm working on a MSI Ventus RTX 4080 16G. The GPU has 12v, 5v, however what I assume is the 1.8v rail has 1.1v and what I assume to be PEX is 0v. As you may have guessed already there is no Vmem and no Vcore.
I have looked around in related forum posts for a schematic so Much appreciated if anyone can share a Broadview schematic.
Thanks.
Comment