DVH-3900MP/XZ/EW5
21
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Not available to remocon?
OK
YES
RMC1, R906
YES
NO
Checked the remocon
sens Vdd?
YES
CN901(5), IC401(5)
NO
Checked the remocon
sens line?
1-A
Not available to volume control?
OK
YES
EV901, CN901(6, 7), IC401(40, 41)
YES
NO
Checked the encoder volume?
YES
IC401(1, 2), IC601(22, 23)
NO
Checked the volume
IC control?
1-B
Not available to key control?
OK
YES
SW901 ~ SW918, EV901
YES
NO
Checked the tact switch?
YES
CN901(8, 9), IC401(52, 53)
NO
Checked the key line?
1-C
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299