Marquette Hellige GmbH MicroSmart V 2.xx Page 50
Servicing Instructions 227 470 35 B - 97.12
Error detected during self-test
If an error is detected during the self-test, the display shows the message "Test failed !" in
addition to the error code and a brief description. The error codes are described in chapter 3.7.1.
MicroSmart fails to print, no paper feed
Carry out the following test in the "Man" mode.
- paper available? paper correctly inserted? paper feed disruption?
- paper flap properly latched in both locking mechanisms?
- green Start LED must light up after pressing the Start/Stop key
- if not: ===> PCB MicroSmart defective
- motor supply lead defective? plug AC properly connected?
- motor blocked? (check drum, transmission)
- measure the voltage +24V on diode D506 (cathode). 24V available?
- if yes: ===> motor defective?
===> or PCB MicroSmart defective (motor control)
Paper feed works, nothing printing out
- paper flap properly latched in both locking mechanisms?
- plug connection
AA properly connected?
- measure the voltage +24V on diode D506 (cathode). 24V available?
- a great deal printed recently, array still over-heated? allow to cool off
- none of the above malfunctions applies:
===> PCB Control defective?
===> or thermal array defective
MicroSmart only prints in top or bottom part of record
- paper flap engaged only on one side
MicroSmart prints, only zero lines are written
- electrodes correctly attached?
- patient lead defective? (e.g. N-lead defective)
- contact problems on patient input of MicroSmart?
- none of the above malfunctions applies: ===> PCB MicroSmart defective
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