IBM 6360 Product Support Manual page 17

DISPLAY INDICATORS
There are three display indicators on the back of the
display module. They are:
0= Low Voltage Power Supply (LED)
1
=
High Voltage Power Supply (Neon)
2
=
Horizontal Beam Deflection Circuit (Neon)
These indicators show the operating condition of the
two power supplies and the circuit.
If an indicator is ON (glowing), it indicates correct
operation.
If an indicator is OFF, it indicates a problem.
The problem may be caused by one or more of the
following:
Loose or defective indicator lamp
Loose or defective cable or plug
Defective Low Voltage or High Voltage
Power Supply
Defective Analog Card
NOTE: Loss of horizontal beam deflection causes
both indicators 1 and 2 to be OFF.
LARGE DISPLAY - Display Indicators
-11-
Display
Indicators
2