Pioneer DVH-3900MP/XZ/EW5 Service Manual page 21

5
QQ
3 7 63 1515 0
Not available to volume control?
TE
L 13942296513
www
.
5
http://www.xiaoyu163.com
1-A
Not available to remocon?
YES
Checked the remocon
sens Vdd?
YES
Checked the remocon
sens line?
YES
OK
1-B
YES
Checked the encoder volume?
YES
Checked the volume
IC control?
YES
OK
1-C
Not available to key control?
YES
Checked the tact switch?
YES
Checked the key line?
YES
OK
x ao
y
i
http://www.xiaoyu163.com
6
8
NO
NO
NO
NO
Q Q
3 6 7 1 3
NO
NO
u163
.
DVH-3900MP/XZ/EW5
6
7
2 9 9 4 2 8
RMC1, R906
CN901(5), IC401(5)
EV901, CN901(6, 7), IC401(40, 41)
IC401(1, 2), IC601(22, 23)
1 5 0 5 8 2 9 9 4
SW901 ~ SW918, EV901
CN901(8, 9), IC401(52, 53)
m
co
7
8
9 9
A
B
C
2 8 9 9
D
E
F
21
8