Pioneer DVH-3900MP/XZ/EW5 Service Manual page 29

5
QQ
3 7 63 1515 0
Not avaliable to LCD lighting control?
TE
L 13942296513
www
.
5
http://www.xiaoyu163.com
6
3-C
YES
Checked the
dimmer control input?
YES
Checked the LCD Vdd?
YES
Checked the LCD
Vdd control?
YES
Checked the LED?
YES
OK
x ao u163
y
i
6
http://www.xiaoyu163.com
7
2 9
8
NO
F302, CN801(11), IC401(66), IC301(9)
NO
IC301(4), Q320, Q322, CN901(12)
NO
NO
Q Q
3 6 7 1 3 1 5
co
.
DVH-3900MP/XZ/EW5
7
8
9 4 2 8
IC401(58, 59), Q319, Q321
LD991 ~ LD992
0 5 8 2 9 9 4 2 8
m
8
9 9
A
B
C
9 9
D
E
F
29