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Search: Posts Made By: ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Today, 07:04 AM
Replies: 4
Views: 86
Posted By ktmmotocross
Re: Lenovo E480 no sign of life

in schematic i dont see any ID pin but in cable there is wire for it.

Anybody know how this USB-C charger work? i have new charger, why it dont give voltage?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Today, 06:39 AM
Replies: 4
Views: 86
Posted By ktmmotocross
Re: Lenovo E480 no sign of life

we have some good guys like SMDflea that share this schematic

https://www.badcaps.net/forum/showthread.php?t=85795
Forum: Schematic Requests ONLY! Yesterday, 02:59 PM
Replies: 3
Views: 71
Posted By ktmmotocross
Re: Lenovo E480 need schematic or BV

:rejoice:many thanks mate
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 09:38 AM
Replies: 4
Views: 86
Posted By ktmmotocross
Lenovo E480 no sign of life

Hello have this Lenovo E480 that after storm wont work
NM-B421

two chargers USB-C dont give me voltage. so i cut one and with cable connect my source and see 2.7W steady. Found hot area near...
Forum: Schematic Requests ONLY! Yesterday, 08:35 AM
Replies: 3
Views: 71
Posted By ktmmotocross
Lenovo E480 need schematic or BV

Hello guys.
i Need schematic or BV for Lenovo Thinkpad E480 NM-B421
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-28-2020, 02:00 AM
Replies: 4
Views: 123
Posted By ktmmotocross
Lenovo Yoga LA-A341P wont charge good battery

Helo.
Have this Lenovo Yoga LA-A341P that wont charge good battery. When they bring it to me it wont work. found shorted mosfet PQ302 that i replaced, but after that it wont charge. when i...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-16-2020, 12:06 AM
Replies: 3
Views: 137
Posted By ktmmotocross
Re: HP Omen 15 - short somewhare

without capacitors 1.3ohm, with capacitors 0.6ohm
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-14-2020, 02:21 AM
Replies: 3
Views: 137
Posted By ktmmotocross
Re: HP Omen 15 - short somewhare

without GPU and CPU coils power is building in 1.0V , 1.2V 3.3V, 5V rails but still have power reset

i even injected VIN but after start normal currwnt occurs and same power reset, so that reset...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-14-2020, 12:36 AM
Replies: 3
Views: 137
Posted By ktmmotocross
HP Omen 15 - short somewhare

Hello.
Have this HP Omen 15 dag35dmbad0 rev d, that have shorted fet on main rail. i repaired main rail and now charging and have power.
But when i push start button, i only hear CLICK and whole...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-12-2020, 10:07 AM
Replies: 8
Views: 276
Posted By ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-11-2020, 01:26 AM
Replies: 2
Views: 165
Posted By ktmmotocross
Re: Lenovo B51-30 no post

sry bad check

Board is LA-C292P re. 1.0

no schematic available
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-07-2020, 12:59 AM
Replies: 2
Views: 165
Posted By ktmmotocross
Lenovo B51-30 no post

Hello.
Have two boards of this Lenovo B51-30, one with GPU other without. It is boards with SoC chip.
Both have same fault. Start, all voltages are ok, but no post.
Did enbody resolve what is...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-06-2020, 02:14 AM
Replies: 12
Views: 7,341
Posted By ktmmotocross
Re: HP 6735s shorted out - Multimeter time!

just throw it to bin. this ATI platform is useless to repair.

u will still need to rebal/replace ATI NB
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-03-2020, 03:57 AM
Replies: 2
Views: 123
Posted By ktmmotocross
Re: Lenovo B560 Switching Ic Equivalent

if u dont have exact one than order exact one
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-03-2020, 03:52 AM
Replies: 3
Views: 167
Posted By ktmmotocross
Re: Razer RZ09-01952 can someone identify what kind of fix has been made here

looks like someone i grabbing voltage and giving it to some points. look in schematic for vhat voltage is grabbing and where it injecting
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-03-2020, 03:49 AM
Replies: 10
Views: 237
Posted By ktmmotocross
Re: MacBook Pro 15" Mid 2012 Unibody NO AUDIO

did u check audio ic for power, short on outputs ...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-03-2020, 03:36 AM
Replies: 6
Views: 167
Posted By ktmmotocross
Re: Lenovo ThinkPad T440p running slow

check cpu with CPU-Z for throttling problem
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-12-2020, 01:05 PM
Replies: 9
Views: 224
Posted By ktmmotocross
Re: Lenovo G50-80 turns on and quickly shuts down

1.6V is way high i think. replace all mosfets on cpu rails
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-24-2020, 11:21 PM
Replies: 8
Views: 369
Posted By ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-21-2020, 05:15 AM
Replies: 0
Views: 96
Posted By ktmmotocross
Asus X550LN screen glitches when flexing board

Hello Have this Asus X550LN that have glitches on screen when flexing board and even turn off. I try to isolate flex point and it looks like it is bad ball under processor.

Have this model...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-18-2020, 03:07 PM
Replies: 4
Views: 173
Posted By ktmmotocross
Re: HP 6560b Wireless Module not supported

put in original card type or search for "whitelist" bios
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 05:10 AM
Replies: 5
Views: 145
Posted By ktmmotocross
Re: Lenovo E520 - Low 3., and 5V ALW

replaced ic and all works
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 04:59 AM
Replies: 5
Views: 145
Posted By ktmmotocross
Re: Lenovo E520 - Low 3., and 5V ALW

sry bad reading. have no REG1 and REG2
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 02:18 AM
Replies: 5
Views: 145
Posted By ktmmotocross
Re: Lenovo E520 - Low 3., and 5V ALW

Pin 16 and 18 have no voltage
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 02:08 AM
Replies: 5
Views: 145
Posted By ktmmotocross
Re: Lenovo E520 - Low 3., and 5V ALW

i find datasheet if this ic

https://www.bulcomp-eng.com/datasheet/BD95280MUV.pdf
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