X409FB REV 2.0 Schematic
Hi I really neeeded a schematic for this because I accidentaly damage the board and no schematic available
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Hi. I have a lenovo 16IAH7H (NM-E231) with a small amount of water spilled on the RT8816CGQWGPU buck converter. When powering on, keyboard lights up, fans will spin slowly. CPU and GPU are getting hot. No image. Not via HDMI either.
Part number is PU4001. The liquid spillage looked minor so I cleaned it up with some alcohol and cleaned ups some crusty joints with solder and flux.
BoardView and schematic is provided. The buck converter diagram is on PAGE 107.
I'm inquiring about any troubleshooting tips like probe points to measure and such. I can... -
ASUS 14 X409FA X409FB X409FJ X409FL Laptop Schematic & Board View...10-06-2024, 03:10 AM
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Hi,
I have got a water damage Asus Zenbook UX3404 (exact model no. UX3404VC-PURE5) where one of its component got burned, picture attached. MARKING ON COMPONENT is ONLY 5k6 !!
Wondering does anyone know what is that component, it is located near the GPU. I have found out the same component near the LVDS cable on and that is how conclude that the suspected burned component
Thank... -
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...
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