Shinkawa VM-5T - Troubleshooting; LCD Display Abnormalities

10. TROUBLESHOOTING VM-5S
-75-
10-1 LCD DISPLAY CONTENT ABNORMAL
Start
Display is blank.
Is power
supply on?
Are
connections to
power supply terminals
correct?
Turn on power supply
again.
Is display normal?
OK
Turn on power supply.
Connect correctly.
Perform LCD
contrast adjustment.
Is display normal?
OK
Repair VM-5.
Display is abnormal.
YES
NO
YES
YES
NO
NO
YES
NO
Is Main board
inserted firmly to
the rac
k
?
Is LCD
connector inserted
firmly?
Insert Main board
firmly by pushing
Main board frame.
Insert LCD connector
firmly.
YES
NO
YES
NO