Using the PCA LEDs to Troubleshoot 51
Troubleshooting
4. If the Power Switch LED is Green and the 3V3 LED is ON, 5V LED is ON, VAUX LED is ON and the
VPOWER2 LED is OFF, then try the following:
• Check the connection between the PSU and the PrintMech PCA.
• Run the Electronics Module Test to further diagnose the problem
⇒ page 123.
• Replace the PrintMech PCA
⇒ See page 464.
Heaters Control Assembly PCA (Petisa)
There are four LEDs that can help when troubleshooting basic issues with the Heater Control Assembly:
24V ON ON
Blue
and
Green
• Check the System Error that is pro-
duced and run the corresponding
Diagnostic Test (either Scan-Axis or
Media-Axis Test.
24V OFF OFF
Blue
and
Green
• Check the connection between the
PSU and the PrintMech PCA and
Interconnect PCA.
• If connection OK, run the Electronics
Module Test to further diagnose the
problem.
24V OFF ON
Blue
and
Green
• Check the connection between the
PSU and the Interconnect PCA.
• If connection OK, run the Electronics
Module Test to further diagnose the
problem.
24V ON OFF
Blue
and
Green
• Check the connection between the
PSU and the PrintMech PCA.
• If connection OK, run the Electronics
Module Test to further diagnose the
problem.
Signal
LED on
Interconnect
PCA
LED on
PrintMech
PCA
Power
Switch
LED
Corrective Action
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