Mitsubishi SD200U, Service Manual

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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
supplied to
SD-4.
STBY5 is not
supplied to
SD-4.
No power-on
Failure
AC system (Primary power source)
failure
Secondary power source failure
STBY5 connection failure
STBY5 connection failure
STBY5 connection failure
Main
Power
Main
Power
Main
Power
Main
Power
Main
Power
POWER
DMD, KEY
POWER
DMD,
FORMATTER
FORMATTER,
SIGNAL
F9A0
J13-KT connector
J3 connector
SF-J1 connector
F900
Microcomputer is not operating
Main
Power
SIGNAL
IC4A0 109pin (RESET)
IC408 1, 4, 5pin (CLK)
IC403 2, 3pin (3.3V, 2.2V)
IC400-IC401 BUS
Reset
Check Point
PCB Reference
LED Indication
POWER
--- ---
2 Red ---
LAMP
No power-on Keypad failure
Main
Power
DMD, KEY J13-KT connector
No power-on Gate Array (IC4A0) bus error
Main
Power
SIGNAL IC4A0 76-106pin 3
Orange/Red
alternately
(cycle :
few second)
Don’t
care
No power-on
IIC bus failure of EEPROM at initialize
of microcomputer
Main
Power
SIGNAL IC402 (SCL, SDA) 4
Orange/Red
alternately
(cycle : 1S)
Don’t
care
No power-on LAMP COVER open Auto SIGNAL
SE connector 2pin,
LAMP COVER
5
Red/Green
alternately
---
No power-on FAN STOP : LAMP (Exhaust)
Main
Power
IRR CN connector
6
Red/Green
alternately
Red
No power-on FAN STOP : DMD
Main
Power
IRR CP connector
No power-on FAN STOP : POWER
Main
Power
FAN FJ connector
No power-on FAN STOP : OPTICAL UNIT (Sirocco)
Main
Power
FAN FM connector
No power-on FAN STOP : DMD, LAMP (Exhaust)
Main
Power
IRR, FAN CW-J14 connector
No power-on FAN STOP : All FANs
Main
Power
FAN,
POWER-SUB
RC-FC connector, Z9A1