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DR-E22BK
DR-E22LBK
Microcomputer System (System Input)
The source indicator does not light up.
is Whe power
heemale
Stable
+10 V, +5.6 V, and
+5 V
7
power
XT602
IC602
D559, D560, 0654, Q656
Check the voltages at all the pins of IC602.
.
Is there overvoltage at the IC pin?
System microcomputer abnormality
IC602
Is the mechanism control microcomputer clock generated?
as
YES.
|NO.
Oscillator abnormality
XT601
System microcomputer abnormality
IC601
YES.
|NO.
Check the voltage at J4591, motor voltage
?
Is the motor control IC normal?
check 1C451
and 1C453
Is there overvoltage at the IC pin?
Check the voltage at each pin of IC106.
Abnormality in the mechanism contro}
|
IC601
microcomputer
ne
|
Is there a cut connection
Cam
position data error
(FW601
or FW602)?
)
System microcomputer
1C602, 1C601
°
communications error
Mechanical
interference by
IL
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