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Table 5-5. The Printer Does Not Operate at All
Cause Step Checkpoint Finding Solution
Connector CN207 on the
C169 MAIN-B Board may be
disconnected.
1
Is connector CN207 on the
C169 MAIN-B Board
disconnected?
Yes
Connect CN207 on
the board.
The fuse on the PWB-E board
may be blown.
2
Has the fuse blown on the
PWB-E board?
Yes
Replace the fuse.
PWB-E board may be dead.
3
With power on, is there an
output of +5 VDC between pin 4
(+) and pin 3 (–) for CN207 on
C169 MAIN-B Board?
No
Replace the PWB-E
board.
C169 MAIN-B Board may be
dead.
4
—
—
Replace the C169
MAIN-B Board.
Table 5-6. Both LED Lights Do Not Come On
Cause Step Checkpoint Finding Solution
The C169 MAIN-B Board may
be dead.
1
If you change the C169 MAIN-B
Board, do the LEDs come on?
Yes
Replace the C169
MAIN-B Board.
Table 5-7. The LED Does Not Come On (1)
EPL-5500 Service Manual Troubleshooting
Rev. B 5-7