Hp 540 no display..
repalce mch now ok
Search found 3 matches
- Mon Apr 18, 2016 2:51 pm
- Forum: Laptop Case Studies
- Topic: hp 540 no display
- Replies: 0
- Views: 1221
- 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,...
- 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.
[ Post made via Android ]
[ Post made via Android ]