DOWNLOAD Panasonic KX-FT57E Service Manual ↓ Size: 3.76 MB | Pages: 127 in PDF or view online for FREE

|

25

|

FUNCTION

SYMPTOM

PAGE

The unit doesn't work at all.

Printing

Paper paths section

     Abnormal
     mechanical sound

Cutter

Power supply

Operation panel

Sensor

     Communication
     FAX,   TEL

(Analog board)

No character or faint response in the LCD

Skewed sending image
Expanded printing
Image is distorted.
Black or White lateral lines on the printed copy.

No feed
Paper jam
Multiple feed
Skewed

Abnormal sound from the product

Can not cut the recording paper.

Voltage output is abnormal.

Keys are not accepted.

"PAPER JAMMED" is displayed.
"CHECK COVER" is displayed.
"CHECK DOCUMENT" is displayed.

Can not communicate by fax.
An error code is displayed.
Can't talk.
DTMF tone doesn't work.
Handset/Monitor sound, volume
TAM doesn't work.
Digital speaker phone

Page 34
Page 34
Page 31
Page 32

Page 27
Page 28
Page 29
Page 30

Page 35

Page 33

Page 79

Page 83

Page 84

Page 37
Page 37
Page 73
Page 73
Page 73
Page 73
Page 77

|

26

|

FUNCTION

JUDGEMENT

DATE

REFERENCE

FAX operaton

Copy operation

Telephone operation

Operation panel

Sensor

Digital speaker
phone

Digital TAM

Clock

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

OK / NG

Service code 815 

ƒ

(Digital SP-Phone LED)

Service code 561 

ƒ

Service code 557 

ƒ

Service code 558 

ƒ

Service code 815 

ƒ

Check accuracy.

Transmission

Receiving

FINE mode

HALF TONE mode

Handset transceiver/ receiver

Ringer sound

Dial operation

Volume operation

VOX detection

Key check

LED check

LCD check

Sensor check

Voice prompt

OK / NG

Service code 784
Check whether voice
prompt is played or not.

Greeting Rec/Play

OK / NG

Incoming message Rec/Play

OK / NG

Memo Rec/Play

SERIAL NO.

ƒ 

Check according to the service code referring

   to the Test function on page 98.

|

27

|

When setting a document, 
confirm the beep tone.

ƒ

 When using thin paper etc., if the document will not feed,

     refer to the feed pressure adjustment (page 101).

Check if separation 
spring is distorted.

Check the sensor 
lever movement.

Replace the sensor
lever.

Replace the defec-
tive parts.

Replace the motor
and connector.

Replace the gear.

Replace IC7.

Replace 
the motor.

Check the power supply 
unit section. (page 79)

Check the sensor
and digital board.
(pages 58 and 84)

Check the gear.

Is the voltage at emitter
of Q1 +24 V?

Is the voltage at collector
of Q1 +24 V?

Is the voltage at pin 11 of
IC7 less than 2V?

Replace Q1.

Check the motor and
connector.

Is the phase signal from
pins 73-77 of IC1 out-
put?

Is the solder at pins 73-
77 of IC1 OK?

Replace IC7.

OK?

OK?

OK?

OK?

OK?

OK?

OK?

OK?

YES

END

YES

YES

NO

NO

NG

END

NO

NO

NO

NG

YES

NO

YES

NO

YES

NO

Clean the separation roller.
( page 114 )

Does the separation roller 
rotate?

Check the separation spring
and pad?

Replace the separation
roller unit.

Replace the operation cover
unit.

Go to the digital board 
section. (page 58)

Repair.

NG

NG

END

END

YES

NG

NG

OK

NO

YES

YES

YES

YES

NG

OK

OK

NG

END

OK

|

28

|

Check the feed route.

Check the paper jam for markings or objects stuck on the sheet.

Clean or replace the
defective parts.

Confirm that the location tip of the read position
sensor lever works smoothly. [Use the sensor test function (page 98)]

Repair or replace the 
sensor lever.

Go to the sensor section.
(page 84)

Check if the sensor 
reacts while the flag is 
moving.

Check that the separation, feed and pinch 
rollers are attached correctly. 

Repair the defective parts.

Check each of the 
sensors movement.

Check each roller
mount.

Check the white plate.

Replace the white plate.

Clean each of the rollers.
(pages 113 and  114 )

OK?

OK?

OK?

OK?

NG

OK?

OK?

OK?

NG

NG

NG

NG

YES

YES

YES

END

END

END

END

NO

NO

NO

OK

OK

OK

OK

Operation Board Cover

White Plate

Operation 
cover

Document

Fig. A