estelanim416
Member
Hi,
This one had liquid exposure towards the centre of the board. At least that's all I can see here
Issues:
Slow performance
Fan High Speed constantly
No sound via speakers nor headphones
Backlight goes on and off
I put it thru Crest cleaner as it was quite dirty
After crest sounds seems to be back (some audible regular 'burp' from the speakers) but other issues remain
Cant see anything wrong under the scope
Some readings below:
Q7706
1 8.59v 7.92v switching from one to another
2 8.6v 7.92 same as pin 1
3 8.35v 6.4v jumping
4 8.6v
5 from 0v to 6.2v (variation of values)
6 looks like I am "draining it" will go from 2.3v to 0v every time I put the probes on
D7701
1 8v goes down, then raises up
2 16v and "draining down"
F7700
1 8.6v
2 8.6v
There is a continuity between D7701 and A5 ball of U7701
Please assist
This one had liquid exposure towards the centre of the board. At least that's all I can see here
Issues:
Slow performance
Fan High Speed constantly
No sound via speakers nor headphones
Backlight goes on and off
I put it thru Crest cleaner as it was quite dirty
After crest sounds seems to be back (some audible regular 'burp' from the speakers) but other issues remain
Cant see anything wrong under the scope
Some readings below:
Q7706
1 8.59v 7.92v switching from one to another
2 8.6v 7.92 same as pin 1
3 8.35v 6.4v jumping
4 8.6v
5 from 0v to 6.2v (variation of values)
6 looks like I am "draining it" will go from 2.3v to 0v every time I put the probes on
D7701
1 8v goes down, then raises up
2 16v and "draining down"
F7700
1 8.6v
2 8.6v
There is a continuity between D7701 and A5 ball of U7701
Please assist