Pioneer DVH-3900MP/XZ/EW5 Service Manual page 27

5
QQ
3 7 63 1515 0
3. DISPLAY ERROR CORRECTION FLOW CHART
Something wrong with the display?
No display or some display is broken?
TE
L 13942296513
www
.
5
http://www.xiaoyu163.com
6
YES
Checked the LCD
driver Vdd?
YES
Checked the LCD
driver Ground?
YES
Checked the LCD
driver reset?
YES
Checked the LCD
driver OSC?
YES
Checked the LCD
driver data interface?
YES
Checked the LCD
to LCD driver line?
YES
OK
x ao u163
y
i
6
http://www.xiaoyu163.com
7
2 9
8
~
3-A 3-C
NO
NO
NO
IC901(57), CN901(11), IC401(75)
NO
NO
IC401(76, 78, 79), CN901(3, 4, 10),
Q Q
3 6 7 1 3 1 5
NO
co
.
DVH-3900MP/XZ/EW5
7
9 4 2 8
IC901(56)
IC901(60)
IC901(61)
IC901(62, 63, 64)
0 5 8 2 9 9 4 2 8
IC901(1 ~ 55), LCD
m
8
9 9
A
B
C
9 9
D
E
F
27
8