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KX-F l ZuU
I
Note
5) Check
motor
driw
ulaut_tlOll
Motor test start
(Refer to page
20.)
1
Does the platen I
rotate?
I YES
Does the docu-
ment roller ro-
tate?
r----"
"-I
Check trans-
I
I
mission motor
section.
L
J
NO
END
J
F
•
I Check recep-
,
-'-- tion motor sec-
I
|
tion.
"
I
"
Is the connec-
I
tor (CN409)
I
loose?
NO I-_
I Ooes the motor
I
rotate?
YES
Check foreign
matter in gear,
damaged gear
and motor.
NO
y_-_
NO l
Repair.
1
OK?
l
Repair.
t NO
IS the solder at pins i _
16,17,20-22
of IC404 OK?
YES
I Replace
IC406.
Isthe connec-
_
Repair.
I
tor (CN408)
loose?
]
INO {
-=
YES
NO
OK?
I O°esthe m°t°r t N°
rotate?
I
YES
Check foreign
matter in gear,
damaged gear
and motor.
I
END
I YES
l
OK?
I Replace Q410.
YL_
"
Is the phase
signal
from pins 16,17,
20-22 of IC404 output?
NO I
YES
i
Is the voltage at
pin 8 of IC407.
Repair.
_ =
NO
END
eac L
I NO
I No
YEsYES
I
[
,- I Is the phase
t
signal from pins
23-27 of IC404
output?
Is the solder at
pins 23-27 of
1C404 OK'?.
I YES
I Replace 1C406. /
Is the voltage at pin 1
of IC407 less than 2 V?
YES
_
NO
Check switching
power supply
section. (Refer to
page 63.)
I
YES
- 50 -
Check the
connection
of IC407.
NO
/
Isthe voltage at I
NO
emitter of Q403.
F-
+24 V?
YES
,
YES
I
I
Is the voltage at
Replace
collector of Q403 1
•
+24 V?
_
/
1
,I
Is the voltage at pin 11
_oflC4061essthan2V?
I
NO
t YES
_ Replace Q403.
_-_
OK?
J
Check switching
power supply
section. (Refer to
page 63.)
IC406.
I
NO
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