TROUBLESHOOTING CLV-160
4. TROUBLESHOOTING
1. CONTENTS
Classification Symptom
Check item Page
Light source
unit/Lamp
Power is not supplied.
The light source xenon lamp is not ht.
The lamp goes out after once ignition up.
The scope cannot be connected.
Observation
No light is emitted from the scope.
Setting/Display
The cooling fan does not work.
When the scope is disconnected, the
brightness is not reduced to the minimum or
changed.
The pump does not work or the supply air
flowrate does not change even if the pump
ON switch is depressed.
The temperature switch does not turn off
even if the temperature in the unit rises over
the specified value, or the temperature switch
malfunctions at the temperature below the
specified value.
The turret plate does not rotate even if the
Filter switching operation
filter switch is depressed.
check
The visual field is dark or too bright.
LED does not light or LED indication does
not change even if the switch is depressed.
Emergent light check
Manual brightness
adjustment check
Automatic brightness
adjustment check 1
Automatic brightness
adjustment check 2
Lamp brightness check
Panel operation check
The emergency lamp is not automatically lit Emergency lamp operation
when the xenon lamp goes out.
check
The values set before the power is turned off
are not stored when the power is turned off.
Backup function check
25
The lamp life meter does not return to zero
Lamp life meter reset function
even if the lamp life meter reset switch.
check
Brightness does not change even if the
Transillumination function
transillumination switch is depressed.
check
Power supply check 2 to 3
Lamp check 4 to 5
Lamp going-out check
6 to 7
Scope connection check
8
Cooling fan operation check
9
Shielding check on removal of
10
the scope
Pump check 11 to 12
Temperature switch function
check
13
14 to 15
16
17
18
19 to 20
21
22
23 to 24
26
27
4-l
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