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5-5
5-8. Status Display Process
In the status display process, two-color lighting LEDs of
DL037, DL038 and DL039 turn ON for each kind of
status shown in the table below by using LED0 to LED5
terminal output of the microprocessor.
5-9. On-screen Display Process
In the on-screen display process, control signals are
supplied to the OSD display IC QX003 (CD0016AM),
and the OSD display IC generates character display
signals at the timing determined by VD, HD and clock
supplied to the IC separately.
ON
X
Green
Red
Orange
Green
Green
Green
Green
Orange
Red
Red
Red
Red
Red
Red
Red
LAMP
X
Green
Red
X
X
(Green)
Green
X
(Green)
X
Red
Orange
X
X
X
X
TEMP
X
Green
Red
X
X
X
X
X
X
X
X
X
(Red)
(Orange)
(Green)
Red
Function
Stand-by power supply
abnormality
Non-volatile memory OK
Non-volatile memory NG
Stand-by
Lamp ON
Lamp Heat-up
Lamp Lighting
Lamp OFF
Lamp cool-down
Main power supply
abnormality
Lamp no-lighting
Lamp lighting-lifetime
Suction fan stop
Exhaust fan stop
Fan filter open
Temperature sensor
abnormality
Status
At AC cord plugged
At AC cord plugged
At AC cord plugged
At power off
At power on
At power on
During power on
At power off
At power off
At power On/During
At power On/During
At power on
At power on
At power on
Ever
Ever
Countermeasure
Repair
Normal
At initial time
Normal
Normal
Normal
Normal
Normal
Normal
Repair
Repair or preparation failure
Operates after approx. 2500 H
operation
Repair
Repair
Close
Lower internal temperature of
the unit.
Table 5-8-1 Contents of the status display signals and the logic
X: Lighting OFF
( ): Blinking