DVH-3900MP/XZ/EW5
33
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Something wrong with the DVD system?
6. DVD ERROR CORRECTION FLOW CHART
6-A
~
6-D
Loading/Unloading?
OK
YES
See the system error correction
process with the key control.
YES
NO
Checked the eject
key defect?
IC1202(1, 6)
YES
NO
Checked the loading
motor IC Vdd?
IC1202(7, 8, 2, 3)
See Figure 9, 11
YES
NO
Checked the Load/
Unload control?
CN1301(2, 4), SW1301, CN1202(13)
See Figure 10, 12
YES
NO
Checked the Load/
Unload SW?
IC1301(VDD33, VDD12, +3VA)
See Figure 13
YES
NO
Checked the
MPEG Vdd?
IC1301 VSS (1, 23, 35, 46, 63, 81,
100, 171, 180, 198, 208, 220, 234, 245)
YES
NO
Checked the
MPEG Ground?
IC401(23), IC203(5, 6)
CN902(10) IC1301 NRST(101)
YES
NO
Checked the
MPEG Reset?
X1301(1, 3)
See Figure 14
YES
NO
Checked the
MPEG X-tal?
IC401(84, 85, 86, 29), CN902(4, 5, 6, 7)
IC1301(84, 85, 86, 87)
YES
NO
Checked the main
Micom data interface?
CN902(4, 5, 6, 7), CN1601(4, 5, 6, 7)
See Figure 15
YES
NO
Checked the main
Micom data interface?
CN1301(2, 4)
YES
NO
Checked the disc
in load switch?
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TEL 13942296513 QQ 376315150 892498299
