Air 820-00165 water damage no ppbus

yair37

Member
water damage (cleaned) no PPBUS_G3H.
PPBUS_G3H 0V sometimes 0.7V
PP3V42_G3H 1.8V
PPDCIN_G3H_ISOL 16.7V

changed:
u5110
u7090
u7100
and reball u5000
 

2informaticos

Administrator
Staff member
Post diode mode to ground at L7130 and L7095.
Check U7090 area for corrosion; pay atention to R7095/96.
 

yair37

Member
U7090 :
1-0.7
2-1.8
3-1.5
4-1.8
6-2.6
8-2.7

U7100:
1-15.6
2-16.4
3-4.4
9-0
12-1.8
13-0
14-1.8
15-0
17-0.4
19-5.1
20-5.1
27-16.3
 

2informaticos

Administrator
Staff member
Post diode mode to ground at C7092.
If short, remove the caps one by one amd test each time.
If still short, change U7090.

BTW, at least one of R/D7005 is burnt...
 

yair37

Member
C7092 diode mode - 328
R7005 nothing , no read
D7005 - leg1-135 leg2 - no read leg3 - 334
i was replace r/d7005 but the same..:/
 

yair37

Member
o.k fan work with just charger, but its not charge the battery the charging symbol apper just for 1 secound, there is green and orange light, and its work just with charger..
 

2informaticos

Administrator
Staff member
Did you try known good battery?
Better to test with an old original, instead of crappy chinese bat.
If liquid spilled on battery electronic board, it must be changed.
 

yair37

Member
update:
r7115/6 and c7115 didnt seat wall...after out the right i was charge but just to 50% , now its not charging and just green light.
i was replace the battery again and the IO and the same.
 

2informaticos

Administrator
Staff member
Exact PPBUS_G3H voltage (without battery)?
Check if SYS_DETECT_L is 0V.
Post voltage and diode mode to ground at SCL/SDA lines of battery bus.
Be sure ISL6259 is properly soldered.
 
Top