Panasonic DP-180, Service Manual

Page: 110 / 375

110
UF-9000
APR 2006
Ver. 3.0
DP-180/190
4.5.2. Poor Transmitted Copy Quality
START
Yes
Make a copy.
No
No
Yes
Is the printed copy normal?
Perform a transmission test
to a reference fax unit.
Is the LED Array lit?
the SC PCB?
Yes
Yes
No
Are CN (SC PCB)
and CN (CCD PCB)
connected properly?
Connect them correctly.
Replace the LVPS.
Does nLEDON go Low
when the scan starts?
Check CN on the SC
PCB and the LED
harness.
Does the problem still
occur?
Replace the LED Array.
The receiving unit may be
defective.
1. Replace the Scanner
Block.
2. Replace the SC PCB.
Replace the SC PCB.
Is the transmitted copy
normal?
No
Yes
No
No
1. Check CN (SC PCB)
and CN (FXB PCB).
2. Check the telephone line cable.
Replace if necessary.
Does poor transmitted copy
appear when transmitting to
a specific receiver?
Telephone line quality is
poor.
END
Yes
Yes
Yes
Does +24 VDC alive on