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DIAGNOSIS INFORMATION
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: LED off
Orange
: Both Red and Green light
Red flash N : The cycle that Red flashes N times and goes out for fixed time is repeated.
LED Error Indication List
Outline of self-diagnosis function
This product is provided with the self-diagnosis function. In case of any abnormality, the LED at the top of the product will
indicate the errors. There are 2 ways for diagnosis.
1
Connect a personal computer to the product. Then, input [00~CHK] from the hyper-terminal window of the personal
computer during stand-by.
2
Connect a personal computer and click the “diagnosis” button of PCGC, the diagnostic software to read the warning
history.
Note:
Diagnosis can be carried out by turning on the main power and then turning on the power of the operation panel.
However, as the diagnosis items are different and it may cause a secondary failure, carry out the diagnosis in the above-
mentioned way normally.
Diagnosis result indication
LED indication and failures are shown in the following table. LED can be reset “automatically” or “by turning on/off of the main
power” when the fault detection is finished.
Preferen-
tial order
1
Symptom
STBY5 is not
output
STBY5 is
being output
No power-on
Failure
AC system (Primary
power source) failure
Secondary power source
failure
IC700 is not operating
Microcomputer is not
operating
CPU bus failure
Main
Power
Main
Power
Main
Power
Main
Power
Main
Power
POWER,
MAIN
MAIN
INLET,
POWER
MAIN
MAIN
STBY5 (SF-8 pin),
STBY3.3 (IC7A4)
IC700-80pin (RESET),
X700 (20MHz)
IC7A0-91pin (RESET),
IC7A0-4pin (10MHz)
IC7A0-CA0 to 17, CD0 to 15
IC700-CA0 to 17, CD0 to 15
MEMBRANE failure
Main
Power
MAIN,
MEMBRANE
ST Connector
IIC bus 1 failure
(EEPROM)
Main
Power
MAIN
IC705
ICLK0, IDA0
Reset
Check Point
PCB
Reference
LED Indication
POWER
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2
Red/Green
alternately
Green
Red
LAMP
TEMP
No power-on
FAN STOP : PBS fan
MAIN
SY Connector
Red/Green
alternately
Red
Red
flash 4
No power-on
FAN STOP : Intake fan
Main
Power
MAIN
SX Connector
Red/Green
alternately
Red
Red
flash
No power-on
FAN STOP : Exhaust fan
Main
Power
MAIN
SW Connector
Red/Green
alternately
Red
Red
flash 2
No power-on
FAN STOP : POWER
UNIT fan
Main
Power
Main
Power
MAIN
SP Connector
Red/Green
alternately
Red
Red
flash 3
3
No power-on
LAMP COVER open
(POWER-ON inhibited for
safety)
Auto
MAIN
SN Connector,
LAMP COVER
Red/Green
alternately
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4
No power-on
STBYR5 power
Main
Power
POWER,
MAIN
SD Connector,
STBY5 (SD-6 pin)
Red/Green
alternately
Orange
Red
flash
5
No power-on
Missing thermistor
Main
Power
MAIN
SZ Connector
Red/Green
alternately
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Red
flash
6
