Intermec EasyCoder PD41 Service Manual page 21

Printer Problems at Power Up (continued)
Problem
The printer is not ready
No reaction at power up
EasyCoder PD41/PD42 Printer Service Manual
Solution
• Check that the printhead is properly
locked in a closed position.
• Check that the network cable is plugged
in.
• Use the command SYSHEALTH$ to
obtain an error diagnosis. Enter the line
PRINT SYSHEALTH$ through a
terminal connection to receive the printer's
Ready-to-Work status.
• Check the power outlet and power cord
• Check the power switch and cables to power module
• Check the main board and cable to the panel module
• Check the 24 VDC output on CN1 on the power module between line and
ground (there are 3 red line wires and 3 black ground wires). If there is no +24V,
replace the entire power module.
• Verify that the same electric potential is present in the other end of the cable
(connected to socket P60 on the main board) to rule out the possibility of errors
in the cable.
• Check that the cable between CN1 on the power module and P60 on the main
board is properly connected.
• Check the status of the F1 and F2 fuses on the power module. If blown, replace
the entire module.
• Check the temperature in the power module. If it is too high, shut off the power
and wait for the power supply to cool off (may take up to half an hour). If the
error persists, examine the power module.
• Check for main board problems
• The electronics compartment contains wires and components with dangerous
voltage (up to 380V). Always switch off the power and unplug the power cord
before you remove the cover over the electronics compartment.
• Check the fuse F1 on the main board, and try to determine the source of the
error. Most likely, you will have to replace the main board.
• Check the cable between main board and console board not connected or
damaged.
• Check that the cable is properly connected to P92 on the main board and P1 on
the console board and that there is no visible damage. Replace if necessary.
• Check for a faulty console unit
• Connect the cable to a replacement console board without actually installing it
(mind the risk of electrostatic discharges). If the trouble seems to be the console
board, replace the entire panel module.
• Check the console board
• Check with some other electrical device
Chapter 1 — Troubleshooting the PD41/PD42
Refer to
7