To learn more about onboard diagnostics and repair
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Hello, I am Tairon, I am new to electronic repair. Thanks for inviting me to your forum. I wish we could collaborate so we can become billionaire together. cheers. TaironComment
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Hi everyone,
Thanks to let me join the forum, totally new here and want to learn on pcb troubleshooting.
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Hello,
My name is Baudman. I am a very hands on person and loves to tinker with electronics. Also learning more about embedded systems and PCB design.
My embedded systems pursuit inspired my interest in fixing broken electronics. And that's what brought me here.
Hope to learn a lot from this platform, benefit from the resources, and also contribute.
Thank you.Comment
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Hello everyone,
I’m new to the forum and just wanted to introduce myself. I’m a software programmer by trade, but I’ve always had a strong interest in electronics and hardware tinkering. Over the years, I’ve been learning more about circuit design, repair, and troubleshooting, and I’m excited to be part of a community that shares the same passion.
Looking forward to learning from all of you, contributing where I can, and hopefully sharing some interesting projects along the way!
Cheers,
actuosusComment
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Related Topics
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by fredyjbiplease help friends thinkpad T470 board CT470 series NM-A931 error post "bottom cover tamper detection error"
I've already
flashed the bios clean me and updated from the Lenovo site, then removed the switch and immediately jumped the S3 from pins 1 to 4, 2 to 3 but the problem remained the same, thank you1 Photo -
by fredyjbiplease help friends, I have 3 T490 units with the same case, the USB type C is completely dead, showing 20v 0 amp, loss of voltage VINT20_IN resistance to ground is fine, thank you
I think the problem is that I lost the voltage at PQ0008 pon 1 -PWRSHUTDOWN which should have been high which was picked up by R9512 VCC3SW, thank you very much for your help
PF0002 20v
PQ0005
pin 5 20v
pin 1.2.3 19.8v
pin 4 19.8
resistance
source & drain 2,4 m
source & gate 100k
PQ0006
pin 1.2.3 19.8v
pin 4 19.8v... -
by fredyjbiplease help friends x1 yoga 7th no display beep melody thank you...
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Channel: BIOS Requests ONLY!
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by fredyjbiplease help friends clean me bios x1 yoga 7th no display melody beep, thank you
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Channel: BIOS Requests ONLY!
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by fredyjbiPlease help friends, thinkpad t480 nm-b501 is dead, help me fix it, thank you
usb meter 20v 0.00 amp, after I took the VSYS measurement the drop was only `9.2v which should have been 10.2v I measured from a normal matherboard machine, the VSYS path resistance to ground diode mode is 1900 thank you
LINK to Schematic -> https://www.badcaps.net/forum/troubl...b501-schematic - Loading...
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