Maintenance Manual Service Maintenance
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•
The printer initializes correctly but it does not display anything.
Cause:
The operator panel board is faulty or with bad connection to main
board.
Actions:
Check for the proper connection to the main board.
Replace the operator panel board or the operator panel cable or the
main board.
TEST POINT
OUTPUT VOLTAGES:
CONNECTOR PIN 1
+ 5 V
CONNECTOR PIN 2
+ 5 V
CONNECTOR PIN 3
GROUND
CONNECTOR PIN 4
GROUND
CONNECTOR PIN 5
GROUND
CONNECTOR PIN 6
GROUND
CONNECTOR PIN 7
GROUND
CONNECTOR PIN 8
+ 38 V
CONNECTOR PIN 9
+ 38 V
CONNECTOR PIN 10
+ 38 V
(a) KATODE DIODE D1
+ 79 V
CONNECTOR PIN 12
FAN CONTROL (not used)
Figure 6.1 Power Supply Test Points
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LA400 Multiprinter 6. 9 ER-LA400-SV
Содержание LA400
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