Hi ,
this laptop (VPCEJ2L1E /MBX 248 / DA0HK2MB6E0) doesn't show sign of life .
I have found PM6686 burn , with pin 6 cut on the motehrboard.
I have replace PM6686 and repair pin 6 , but nothing change .
I don't have schématic , which pin i have to check on PM6686 ?
Best regards

Привет,
этот ноутбук (VPCEJ2L1E / MBX 248 / DA0HK2MB6E0) не показывает признаков жизни.
Я нашел PM6686 ожог, с вывода 6 разрез на motehrboard.
Я заменить PM6686 и ремонт контакт 6, но не изменение.
У меня нет схемы, которые закрепляют я должен проверить на PM6686?
С уважением

You have Quanta HK2 Motherboard.
Try schematic from Quanta HK1.

Check resistance on PL13, PL14. PQ45 (2 pin) PQ62 (4 pin)

Many thanks



I have check :
PL13 between pin 1 and 2 i have found 0 ohm
PL14 between pin 1 and 2 i have found 0 ohm

PQ45 pin 2 with ground i have found 64 ohms
PQ62 pin 4 with ground i have found 86 ohms

Best regards

So i presume i have made a mistake
i have found 90 ohm with PL14 ,PL13 and the ground

Hi
PL14 , PL13 , PQ62 and PQ45 have no voltage.

Pins 1, 2,3, 4, 6, 14, 27, 32 Voltage ?

Hi,
pin 1 ; 2.05v
pin 2 ; 0v
pin 3 ; 0v
pin 4 ; 3.9v
pin 6 ; 19.5v
pin 14 ; 0.8v
pin 27 ; 0v
pin 32 ; 0v

Thank you for your help

Look at scheme.
pin 14 = 0V, it's bad.
and, i think, you must have on 3 pin - 5V. Check, maybe you don't have +5V_VCC1.

p.s. You can read datasheet for PM6686 and see what should be on each pin.
http://master-chip.ru/store/files/65b83 ... PM6686.pdf

Thank you for your help .
Which component gives 5_VCC ?

I don't know. Maybe he UP after start PM6686.