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4-1
Spindle m otor does not m ove
Yes
Yes
N o
N o
N o
N o
Yes
C heck w hether “+P5V”
(+5V) voltage is norm al.
C orrect connection
C heck the +5V pow er supply
C heck/R eplace Q 4
、
Q 5.
C heck/ R eplace U 2.
H ave no to focus
1. C heck
U 2 42pin FO O signals
2.If there are F+, F-, T+ and T-
signals output from U 3.
C heck/R eplace the loader
Yes
Yes
N o
G o
C heck w hether laser voltage
(2V for VC D & 2.2V for D VD )
on C ollector of Q 4 and Q 5
C heck the FFC connection
betw een 24P and the loader.
1.W hether voltage on pin 114 of U 2
varies betw een 0 and 3.3V (3.3V for
VC D and 0V for D VD ),
2.W hether peripheral com ponents
are eroded or badly soldered.
Trouble shooting chart
M otor no m ove
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Содержание DVP5100
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