Acer B173 - Page 29

1. No Power
No Power
Check CN1
+5
V
Yes
Change Power
Board
NO
Check
Q7,Q8,=1.8V
Change
Q7,Q8,Q9,U1
NO
Check Short Of
Main Board
No
Yes
Check
Y1=24MHz
NO
Change Y1
Yes
Check U3 Pin
15,16 Clock
NO
Change U3 or
U7
RUN Software
ISP
Change U5
Yes
Check U7
Pin X1 Clock
Change U7
NO
Check Bottom
Board
Chapter 4
TROUBLE SHOOTING
This chapter provides trouble shooting information for B173