Dover markem-imaje 5200 Service Manual page 99

Symptom
Heartbeat LED on
Control Board blinks
(continued)
Heartbeat LED on
Control Board does
not blink
Machine Will Not
Power Up
0855855eng 6/08
Possible Cause / Problem
Corrupted RAM
Failed back light circuit (LCD)
Failed LCD Interface Board
No AC input power
Incorrect AC input voltage
configuration (Soft Start Board)
Electrical connection
Control board is locked up.
Failed Backplane or Control
Board
No AC input power
Incorrect voltage configuration
Failed AC circuit breaker
Failed Soft Start Board
Incorrect SW1 settings on
Control Board
Failed transformer
SECTION 5 Troubleshooting
Reference / Action
Reset to factory default.
NOTE: Resetting RAM will
result in a loss of parameters.
If running Rev L software or
lower, loss of job files will also
result.
SE, 6, Replacing the User
Interface Module
SE, 6, Replacing the User
Interface Module
IN, 2, Connecting the AC
Power
IN, 2, Changing the Voltage
Configuration
5200/5400 Block Diagram
Test for properly seated
electrical connections; test for
proper DC voltage levels.
SE, 4, LED Indicator on
Control Board
SE, 6, Replacing the I/O Panel
Assembly
SE, 6, Replacing the Control
Board
IN, 2, Connecting the AC
Power
IN, 2, Changing the Voltage
Configuration
IN, 2, Changing the Voltage
Configuration
Verify breaker functionality;
measure line voltage at Soft
Start Board.
SE, 6, Replacing the Soft Start
Board
SE, 4, Switch Pack 1 Settings
on the Control Board
Normal setting of SW1 is
position 2 inwards, all others
out towards edge of board.
Measure per 5200/5400 Block
Diagram or 2150315
5–9