Pioneer DVH-3900MP/XZ/EW5 Service Manual page 33

5
QQ
3 7 63 1515 0
6. DVD ERROR CORRECTION FLOW CHART
Something wrong with the DVD system?
TE
L 13942296513
www
.
5
http://www.xiaoyu163.com
6
Loading/Unloading?
YES
Checked the eject
key defect?
YES
Checked the loading
motor IC Vdd?
YES
Checked the Load/
Unload control?
YES
Checked the Load/
Unload SW?
YES
Checked the
MPEG Vdd?
YES
Checked the
MPEG Ground?
YES
Checked the
MPEG Reset?
YES
Checked the
MPEG X-tal?
YES
Checked the main
Micom data interface?
YES
Checked the main
Micom data interface?
YES
Checked the disc
in load switch?
YES
OK
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i
6
http://www.xiaoyu163.com
7
2 9
8
~
6-A 6-D
NO
See the system error correction
process with the key control.
NO
NO
NO
CN1301(2, 4), SW1301, CN1202(13)
NO
IC1301(VDD33, VDD12, +3VA)
Q Q
3 6 7 1 3 1 5
NO
IC1301 VSS (1, 23, 35, 46, 63, 81,
100, 171, 180, 198, 208, 220, 234, 245)
NO
IC401(23), IC203(5, 6)
CN902(10) IC1301 NRST(101)
NO
NO
IC401(84, 85, 86, 29), CN902(4, 5, 6, 7)
IC1301(84, 85, 86, 87)
NO
CN902(4, 5, 6, 7), CN1601(4, 5, 6, 7)
NO
co
.
DVH-3900MP/XZ/EW5
7
9 4 2 8
IC1202(1, 6)
IC1202(7, 8, 2, 3)
See Figure 9, 11
See Figure 10, 12
See Figure 13
0 5 8 2 9 9 4 2 8
X1301(1, 3)
See Figure 14
See Figure 15
CN1301(2, 4)
m
8
9 9
A
B
C
9 9
D
E
F
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