Good Morning i need schematic
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Good morning, colleagues.
I'm looking for the schematic or boardview for a Dell Alienware M16 R1 AMD (Infinity A+N MB1 213199-1 Y5J11$CA).
I would really appreciate it if someone could share it.
My main issue is that the backlight is not working. I found fuse F5503 to be blown; I replaced it, but it blows again (goes into protection).
It's worth noting that there's no short on the fuse line, so any guidance or similar experience would be greatly appreciated.08-12-2025, 09:21 AM -
Laptop model: Sp513-54n-74V2
Testing power rails (separated by chip) reveals:
19V_DCBATOUT - (active)
5V_AUX_S5 - (active)
5V_S5 - (active)
3D3V_AUX_S5 - (active)
3D3V_S5 27Ω - (good) - enabled by Nuvoton chip
1D8V_VCCIN_AUX - (good) - enabled by 1D8V_S5 PG signal -- (dependent on 3D3V_S5)
1D8V_S5 41Ω - (good) - enabled by 3D3V_S5 PG signal
1D05V_VNN_BYPASS - (good) - enabled by 1D8V_VCCIN_AUX PG signal... -
Good morning guys,
I have a Lenovo V15 G3 that came in with liquid damage. The damage was very minor and some corrosion on the IO board where the power switch was. After cleaning both the motherboard and IO board in alcohol, the laptop turned on and I had backlight for about 3 seconds but nothing further. I don't have a boardview for this laptop (Have requested this in the Schematic Request section), however from previous experience on Lenovo laptops I have checked pins 1, 2, 3 on the EDP connector. When the battery is connected only, I get 8V and when AC adapter is connected, I get... -
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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