— 13 —
2-B
B
Does the
disc motor rotate?
Yes
No
No
Is waveform at pin
24 (DMEO) of IC902 like that
shown
in figure 14?
Is waveform at pins
14 to 16 of IC903 like that
shown
in figure 15?
l
Check circuit around pin
24 of IC902.
l
Check circuit around pins
14 to 16 of IC903.
l
IC902 is defective.
Yes
Yes
l
Check sled motor (DC resistance : 12
Ω
).
l
Check wire connector.
B1
(See page14)
Vref
4 V
Vref
4 V
Figure 14
Figure 15
