Canon MultiPASS C530 Service Manual page 181

MultiPASS C530/C560 Chapter 3: Maintenance & Service
4.3 Errors not Shown on the Display
4.3.1 General errors
• The unit does not turn on. (Evaluation criteria: Look at the actual unit.)
(1) Check the power cord connection.
(2) Check the connection between the SPCNT board (J33) and power supply unit.
(3) Check the power supply unit's fuse (F1).
(4) Replace the power supply unit.
• The display looks abnormal. (Applicable test mode: Operation panel test)
Nothing is displayed.
(1) Check the connection between the Operation panel unit and SPCNT board (J9).
(2) Replace the Operation panel unit.
(3) Replace the SPCNT board.
Part of the LCD panel does not display anything.
(1) Check for LCD problems with the test mode.
(2) Check the connection between the Operation panel unit and SPCNT board (J9).
(3) Replace the Operation panel unit. (Faulty LCD)
(4) Replace the SPCNT board.
• The buttons do not work. (Applicable test mode: Operation panel test)
(1) If the test mode can be used, check for faulty buttons.
(2) Check the connection between the Operation panel unit and SPCNT board (J9).
(3) Replace the Operation panel unit.
(4) Replace the SPCNT board.
• No sound from the speaker
(1) Check the connection of the speaker and SPCNT board (J5).
(2) Replace the speaker.
(3) Replace the SPCNT board.
3-24