Search found 3 matches

by santosh_rawat
Mon Apr 18, 2016 2:51 pm
Forum: Laptop Case Studies
Topic: hp 540 no display
Replies: 0
Views: 1221

hp 540 no display

Hp 540 no display..
repalce mch now ok
by santosh_rawat
Sun Apr 17, 2016 6:25 am
Forum: Laptop Case Studies
Topic: Sony Vaio mbx-273
Replies: 7
Views: 5616

Sony Vaio mbx-273

Motherboard part no. Mbx-273 Brand Sony Problem can't switch on.. Diagnose chk necessary signal.bios pin no.8 and 1have no 3.3v.no 3v and 5v..but batt connector have 3.3v..then chk vin (19v) on sn608098.its available..but no 3v and 5v. Then chk necessary signal for bq725 .like AC in;AC detect.acdrv,...
by santosh_rawat
Sun Apr 10, 2016 4:53 pm
Forum: Laptop Case Studies
Topic: how to use dc supply to find short component on motherboard
Replies: 6
Views: 5242

Re: how to use dc supply to find short component on motherboard

Directly inject 3.3v at 3.3v coil without attaching afapter.if any Component is heating.that means those component is faulty..this method for 3.3v shorting finding.

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