DVH-3900MP/XZ/EW5
35
5
6
7
8
5
6
7
8
C
D
F
A
B
E
No reading &
"FILE CHECK"
display?
CN1202(13),
IC1301(75)
See Figure 18
NO
YES
Checked the
limit SW?
IC1201(18)
See Figure 19
YES
YES
NO
Checked the
motor DRV mute
control?
IC1201(10)
See Figure 20
YES
NO
Checked
the focus
control?
FMON0
See Figure 20
YES
NO
Checked the
focus error level out.
(FE Mon)?
IC1201(9)
See Figure 21
YES
NO
Checked
the tracking
control?
FMON1
See Figure 21
YES
NO
Checked the
tracking error level
out.(TE Mon)
CN1101(17)
See Figure 22
YES
NO
Checked
IC1201(1, 2, 3, 4)
See Figure 23, 24
NO
6-C
No Spindle
motor operating?
IC1201(22, 27, 35,
42, 43)
OK
YES
NO
Checked the
spindle driver
IC Vdd?
IC1201(4, 16)
YES
NO
Checked the
spindle driver IC
VHALF?
IC1201(36, 38, 41)
YES
NO
Checked the
spindle driver IC
GND?
IC1201(37, 39, 40)
See Figure 16
YES
NO
Checked the
A1, A2, A3 of the
driver IC?
IC1201(27~33)
See Figure 17
YES
NO
Checked
the hall Bias
signals?
IC1201(5)
YES
NO
Checked
the spindle motor
control?
YES
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