Panasonic KX-FT78RU-B / KX-FT78RU-W Service Manual ▷ View online
2.3.4.6.
BLACK OR WHITE VERTICAL LINES APPEAR
CROSS REFERENCE:
DIGITAL BOARD SECTION (P.55)
TEST FUNCTIONS (P.84)
2.3.4.7. SKEWED RECEIVING IMAGE
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KX-FT78RU-B / KX-FT78RU-W
2.3.4.8.
EXPANDER PRINT (WHEN PRINTING)
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.86)
2.3.4.9. WHEN COPYING OR PRINTING, AN ABNORMAL SOUND IS HEARD FROM THE
UNIT
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KX-FT78RU-B / KX-FT78RU-W
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.86)
2.3.5. COMMUNICATION SECTION
Find the problem in the table shown below, and refer to the corresponding troubleshooting procedure in DEFECTIVE
FACSIMILE SECTION (P.36).
FACSIMILE SECTION (P.36).
No.
Symptom
Content
Possible cause
1
The paper is not fed properly when faxing.
(Copying is also not possible.)
(Copying is also not possible.)
Troubleshooting
Problem with the feeding
mechanism.
mechanism.
2
The fax usually transmits successfully but sometimes
fails. (Copying is possible.)
fails. (Copying is possible.)
Troubleshooting
Problem with the service line or
with the receiver´s fax.
with the receiver´s fax.
3
The fax receives successfully one time and fails another.
(Copying is possible.)
(Copying is possible.)
Troubleshooting
Problem with the service line or
with the transmitter´s fax.
with the transmitter´s fax.
4
The fax completely fails to transmit or receive.
(The unit can copy documents.)
(The unit can copy documents.)
Troubleshooting
Problem with the electric circuit.
5
The fax fails either to transmit or receive when making a
long distance or an international call.
(The unit can copy documents.)
long distance or an international call.
(The unit can copy documents.)
Detailed description of the
possible causes (Similar to
troubleshooting items No.2
and No.3.)
possible causes (Similar to
troubleshooting items No.2
and No.3.)
Problem with the service line.
6
No.1-No.5
The troubleshooting
procedure for each error
code will be printed on the
communication result
report.
procedure for each error
code will be printed on the
communication result
report.
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KX-FT78RU-B / KX-FT78RU-W
2.3.5.1. DEFECTIVE FACSIMILE SECTION
2.3.5.1.1. TRANSMIT PROBLEM
CROSS REFERENCE:
LCD MESSAGE (P.3)
ADF (AUTO DOCUMENT FEED) SECTION (P.28)
OPERATION BOARD SECTION (P.73)
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KX-FT78RU-B / KX-FT78RU-W
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