4-12
Service Manual
Y108540-8
4.10 DISPLAY TUBE CHARACTERISTICS
Front display:
Union Jack 10LY-01G (ECR 6800: 1pc, ECR 6900/ECR 6920F: 2pcs)
Rear display:
Union Jack 10LY-01G
Character size:
Front is 14.0mm x 4.9mm
Rear is 14.0mm x 4.9mm
Operator/Client display
The following figure shows the front display on the ECR 6900/6920F. The ECR 6800 has just one tube of the same
display device.
Fig. 4- 9
4.9.1 DISPLAY TROUBLESHOOTING
PROBLEM
CORRECTIVE ACTION
No display.
Check the voltage at points (1) and (2) in the previous figure
(point (1) must be DC+28V and point (2) must be AC4.0V).
•
If it outputs correctly at both (1) and (2), replace the front display PWB unit.
•
If it does not output properly at both (1) and (2) or either of them, check the
power supply circuit.
A part of the display
Replace the mainboard.
is chipped off
1. Operator display
2. Client display
2
1
