Panasonic KX-FT21BX, Руководство по обслуживанию

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KX-FT21LA
- 28 -
3-5. ADF (Auto document feed) SECTION
(1) No document feed
When setting the document,
confirm a beep tone.
Check the separation
spring for distortion.
Check the sensor
lever movement.
Replace the sen-
sor lever.
Replace the defec-
tive parts.
Replace the motor
and connector.
Replace the gear.
Replace IC8.
Replace the
motor.
Check the power supply
unit section. (page 74)
Check the sensor
[Use the sensor check
function (page 88)]
and digital board.
(pages 59 and 79)
Check the gear.
Is the voltage at emitter
of Q7 +24 V?
Is the voltage at collector
of Q7 +24 V?
Is the voltage at pin 11 of
IC8 less than 2V?
Replace Q7.
Check the motor and
connector.
Is the phase signal from
pins 126-130 of IC4 out-
put?
Is the solder at pins 126-
130 of IC4 OK?
Replace IC8.
OK?
OK?
OK?
OK?
OK?
OK?
OK?
OK?
YES
END
YES
YES
NO
NO
NG
END
NO
NO
NO
YES
NO
YES
NO
YES
NO
Clean the separation roller.
(page 103)
Does the separation roller
rotate? [Use the motor test
function (page 88)]
Adjust the separation spring
and clean or replace the pad.
Replace the separation
roller unit.
Replace the operating cover
unit.
To digital board
section. (page 59)
Repair.
NG
NG
END
END
YES
NG
NG
OK
NO
YES
YES
YES
YES
NG
OK
OK
OK
END
OK
When using thin paper etc., if the document will not feed.
refer to the feed pressure adjustment (page 92).
YES
NO
YES
NG