Re: Lenovo B51-80 / LA-D101P - No Battery Power
LA-D101P schemactics, if anyone has, can they share?
tolgaaydin
Member
Last Activity: 04-28-2025, 01:32 AM
Joined: 07-26-2020
Location: Turkey
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Re: Lenovo B51-80 / LA-D101P - No Battery Power
Hello,
BATDRV - 00.2v
SCL - 3.1v
SDA - 3.1v
(Measurements were made with the battery and adapter attached.)...Leave a comment:
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Lenovo B51-80 / LA-D101P - No Battery Power
Hello everyone,
My Lenovo B51-80, which I forgot the battery on a long time ago, did not react at all when I tried to run it with the battery today. It works fine with the adapter. When I try a new battery it still doesn't respond.
I made the measurements of the battery/charger integrated. I'm very new to repair and I'm waiting for your help.
thank you all so much in advance.
Note: Sorry if the translation is wrong.
[B]BQ24780[/B]
ACN - 21.1v
VCC - 20.7v
REGN - 6.1v
ACOK - 3v
AVDRV - 26.4v
ACDET... -
Re: Lenovo B51-80 BIWB6/B7/E7/E8 LA-D102P
Dear the forum members,
Lenovo B51-80
MOTHERBOARD : LA-D101P Rev:1.0
schematics i need it, can you help?Leave a comment:
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Re: Lenovo LA-9641 - shuts down after 3 seconds
I tested it with another broken lcd panel in my hand. The image looks fine. What do I need to measure in the panel part to solve the backlight problem?...Leave a comment:
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Re: Lenovo LA-9641 - shuts down after 3 seconds
Hello
ohm measurements taken without power.
I cleaned the motherboard with alcohol. I tried to fix what I saw as cold solder and dried it with hot air.
[U]There is an image on the screen but no backlight.[/U]Re: Lenovo LA-9641 - shuts down after 3 seconds
Hello
ohm measurements taken without power.
I cleaned the motherboard with alcohol. I tried to fix what I saw as cold solder and dried it with hot air.
[U]There...Leave a comment:
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Re: Lenovo LA-9641 - shuts down after 3 seconds
can anyone help me?Leave a comment:
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Re: Lenovo LA-9641 - shuts down after 3 seconds
Hello, thank you for your time.
PL 803 - 1.1Ω - firstly gets 1.6V, then drops to .925mV.
PL 605 - 1.2Ω - .949mV
PL404 - 75 kΩ - 5v
PL701 - 53Ω - 1.1v (coil close to ram slots)
note: my dc regulated power supply is not pirated. I'm testing with the original adapter....Leave a comment:
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Lenovo LA-9641 - shuts down after 3 seconds
Hello guys
I have LA-9641P Motherboard. It shuts down 3 seconds after starting. The power led is on and I think the video card chip and HM chipset are getting hot.
I have made a few measurements below but I need your help and guidance. I would appreciate if you could help me, thanks in advance.
Note: This article was created with translate, I apologize for any mistakes.
PQ301 - (P CH Mosfet)
Drain - 19.5V
Source - 19.5V
Gate - 7.7V
PR301 - 19v
PL301 - 19V
PL302 - 2.3V
PL803 -... -
Re: New Members - please post your introductions here
Hello i am Tolga. I am joining from Turkey. I work in the IT department of a private company and I am interested in motherboard repair as a hobby. Have a nice day everyone
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Re: Laptop repair book for beginners
thank you so much mnciks11Leave a comment:
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