Mitsubishi Electric DLP XD8100U, Service Manual

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DIAGNOSIS INFORMATION
LED error indication
LED indication and failures are described in the following table. LED can be reset “automatically”, “by resetting the power” or “by
turning on/off of the main power” after the failure is corrected.
LED Error Indication List
1. POWER, STASUS and FILTER error indications.
Preferen-
tial order
LED Indication
Symptom Failure
Check Point
Reset
POWER STATUS FILTER PCB Reference
1 --- --- ---
STBY5 is not
supplied.
Primary power source
failure
POWER,
PFC
F9G0
F9F0
Turning off/on of
the main power
Secondary power source
failure
POWER
LSTBY5
(RH-2)
Turning off/on of
the main power
STBY5 is supplied LED failure KEY D7J5
Turning off/on of
the main power
2 Red / green ---
Green
flash
No power-on E2P access failure (SCU) MAIN IC740
Turning off/on of
the main power
3 Red / green ---
Green
flash 2
No power-on
C/W memory access failure
(SCU)
MAIN IC740
Turning off/on of
the main power
4 Red / green ---
Green
flash 3
No power-on E2P access failure (FCU) MAIN IC7A0
Turning off/on of
the main power
5 Red / green ---
Green
flash 4
No power-on E2P access failure (MCU) MAIN IC440
Turning off/on of
the main power
6 Red / green ---
Green
flash 5
No power-on
C/W memory access failure
(MCU)
MAIN IC440
Turning off/on of
the main power
7 Red / green ---
Red
flash
Return to STBY after
the indication of LED
Communication failure
between microcomputers
(FCU/SCU)
MAIN IC7A0/IC740 Auto
8 Red / green ---
Red
flash 2
Return to STBY after
the indication of LED
Communication failure
between microcomputers
(MCU/SCU)
MAIN IC440/IC740 Auto
9 Red / green --- --- No power-on
LBOX/CWBOX/FBOX/
CBOX opened
MAIN
SN, SG, SU
connector
Auto
10 Red / green ---
Orange
flash
Return to STBY after
the indication of LED
Position detection failure of
the mechanical shutter
MAIN
SW
connector
Power-on
again
11 Red / green
Red
flash
Red
flash
Return to STBY after
the indication of LED
Cooling fan (for power)
stopped
MAIN
SFA
connector
Power-on
again
12 Red / green
Red
flash
Red
flash 3
Return to STBY after
the indication of LED
DMD fan stopped MAIN
MFC connector
SV connector
Power-on
again
13 Red / green
Red
flash
Red
flash 4
Return to STBY after
the indication of LED
CW fan stopped MAIN
SFD
connector
Power-on
again
14 Red / green
Red
flash
Red
flash 5
Return to STBY after
the indication of LED
Cooling fan (exhaust 1)
stopped
MAIN
DFE connector
SE connector
Power-on
again
15 Red / green
Red
flash 2
Red
flash
Return to STBY after
the indication of LED
Cooling fan (exhaust 2)
stopped
MAIN
DFF connector
SE connector
Power-on
again
16 Red / green
Red
flash 2
Red
flash 2
Return to STBY after
the indication of LED
Upper cooling fan (lamp 1)
stopped
MAIN
SFG
connector
Power-on
again
17 Red / green
Red
flash 2
Red
flash 3
Return to STBY after
the indication of LED
Lower cooling fan (lamp 1)
stopped
MAIN
SFH
connector
Power-on
again
18 Red / green
Red
flash 2
Red
flash 4
Return to STBY after
the indication of LED
Upper cooling fan (lamp 2)
stopped
MAIN
SF1
connector
Power-on
again
19 Red / green
Red
flash 2
Red
flash 5
Return to STBY after
the indication of LED
Lower cooling fan (lamp 2)
stopped
MAIN
SFJ
connector
Power-on
again
20 Red / green
Red flash /
Green flash
---
Return to STBY after
the indication of LED
No LAMP-ON signal
returned
FORMATTER
FW
connector
Power-on
again
21 Red / green ---
Orange
flash 3
Return to STBY after
the indication of LED
C/W stopped
(C/W failure during power-on) FORMATTER
FW
connector
Power-on
again