Pitney Bowes DA50S Service Manual page 39

4.3
Troubleshooting
Tables
✍
TIP: Device name
is unique to each
printer's main board.
Therefore, replacing
an existing main board
in the printer gives that
printer a new device
name.
DA50S/DA55S/DA70S/DA75S AddressRight™ Printers Service Manual
Table 4-6 Miscellaneous Problems
Symptom
LCD display shows
solid line of erroneous
characters
Nothing happens
when power is
switched on
Troubleshooting/Diagnostics • 4
Possible Cause
Power supply problem
Bad Main Board
Cable loose at the display
or motherboard
Bad LCD display board
No power to AC inlet of
printer
J13 on Main Board discon-
nected
Fuse is blown on Main
Board
Fuse blown in Power Sup-
ply
Solution
Check J13 (provides power
to board from power supply).
Replace Power Supply if
necessary.
Replace main board
Check P9 cable to LCD dis-
play is secured at both ends
Replace the display board
Check power cord and AC
outlet to which it is plugged in
Connect J13 (provides power
to board from power supply)
Replace fuse (Slo Blo 1A
250V) on the mainboard right
next to J13
Replace power supply (no
service replaceable parts
inside)
4-13