New Members - please post your introductions here
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Re: New Members - please post your introductions here
Just signed in to get some advice. Im a good EE but a novice technician. Looking to get better and more experience at troubleshooting. First challenge is a receiver throwing a DC protect fault. Always good to get adice before blowing things up.Comment
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Re: New Members - please post your introductions here
hello guy's i wish find here all what i want from bios or repairing guide than's alllComment
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Re: New Members - please post your introductions here
Hi, my friends call me Mad. I started out working on electronics with my dad back in the 80's I would repair CB & Ham radio equipment which led me into other electronic repairs such as computers and game consoles. I have always been one of those people that just like to see what made things work, so I would tear computers apart and break them so I could repair them. I hope to get to know more people that share the same interests.Comment
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Re: New Members - please post your introductions here
Hi Guys,
I am a software engineer that likes to fix different devices from microwaves to laptop motherboards that would otherwise have been thrown away as to recycle and benefit from having more hardware options. Also, getting more hardware for less allows me go further and port foss firmware to support our right to repair, extend and fully own/hack our devices at our will.
Thanks and hope you are all doing well n healthy.Comment
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Re: New Members - please post your introductions here
Glad to join this forum. I go by Mac. Currently working on getting an old Sharp LC-52E77UN up and running. I could sure use a Delta DPS-286AP schematic... I have the Standby 5v but the blink codes say I have a problem with the 10V???Comment
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Re: New Members - please post your introductions here
Hello Everyone,
My Name is Lucius, im a IT Technician.Comment
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Re: New Members - please post your introductions here
Hi am Michael am 25 from Liverpool United Kingdom and been fixing tvs for as long as I can remember got it from me dad who used to fix crts and VHS back in the dayComment
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Re: New Members - please post your introductions here
New member, fixing lots of tv's lately thoughComment
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Re: New Members - please post your introductions here
Hi everybody
Geoff here from India
Dabbled a fair bit with electronics until about 6 years ago when came to india now find myself missing the challenge so thinking of getting back into the game, looking forward to joining in with this forum hopefully will also be in a position to contribute after short while when I find my feet againComment
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Re: New Members - please post your introductions here
Wassup guys. Big Lenovo thinkpad t440p fan, want finally go into BIOS-modding so I can have different batteries/wifi-cards and unlocked TDP. Nice to see that there is some progress with that lately. I hope I will be able to do the modding soon myself.Comment
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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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