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Troubleshooting
No Power
Refer to Schematic Diagram or Power Supply Line, find out the part of trouble.
Before opening Cabinet Top, check the AC cord and power source.
No
Yes
No
Yes
Power Indicator: flashes red
Warning Indicator: flashes red
Warning Indicator: lights red
Does
a indicator
flash or light?
Is
fuse (F601)
in Inlet Board
broken?
Check Varistor (VA601)
in Inlet Board.
Temperature Fail:
Check and clean the air filter.
(See page 6.)
Check : Switch Circuit
Lamp Switch Unit (SW8803), Lamp Cover (Open?),
Door Switch Unit (SW8801), Door (Closed?)
Check :
Fail Circuit
(Refer to page 34 or 35.)
Secondary Voltage Line: S5V, -5V, 15.5V, S12VA
Signal Line (Fan Error): FAN_ERR
Fan: FN901, FN902, FN903, FN904, FN905
Signal Line (Power): FAN_SW, 5V_SW, ON_3.3V
Signal Line (Lamp Error): RXL (Fail: High)
On (Normal): Short
Off: Open (More than 100
°
C)
Check Thermal Switch
(SW902)
Power Unit is broken.
Power Indicator: flashes red
(at long intervals)