Mitsubishi SL1U Service Manual page 28

LED Indication
Preferen-
tial order
POWER LAMP
Red/Green
Orange
alternately
Red/Green
Orange
alternately
Red/Green
7 Orange
alternately
Red/Green
Orange
alternately
Red/Green
8 Green
alternately
9 Red Red
Red ---
10
Red ---
Green
11 Red
flash
Red
Red
flash
12
Red/Green
Green
alternately
Red/Green
13 Green
alternately
Green
14 Green
flash
Green
15 Red
flash
: LED off Orange
---
Red flash N : The cycle that Red flashes N times and goes out for fixed time is repeated.
Symptom
TEMP
Red
No power-on
flash 3
Red
No power-on
flash 4
Red
No power-on
flash 6
Red
No power-on
flash 7
Red
No power-on
flash 3
--- No power-on
No power-on
Red
No power-on
flash
after power-
off during
power-on
No power-on
Red after power-
flash 2 off during
power-on
No power-on
---
for one minute
Warning
indicated by
---
the LED
during STBY
Warning
indicated by the
---
LED during
power-on
Red
No power-on
flash 2
No power-off
---
for one minute
No power-on
---
for one minute
: Both Red and Green light
Failure
SW3.3 power
SW15.5 power
SW5A power
SW9AU power
AV bus failure
Power-on prohibited due
to the end of Lamp's life
span (1500h)
High intake air temperature
(outside air temperature)
High intake air
temperature (outside air
temperature)
High temperature around
the Lamp
Lamp failure
Lamp malfunction or
lamp off by the
thermostat of the lamp
power source.
Warning that the end of
Lamp's life span is near
(1000 to 1500h)
Warning that the end of
Lamp's life span is near
(1000 to 1500h)
IIC bus 2 failure
(DECODER)
For one minute after
POWER-ON
For one minute after
POWER-OFF
- 2 -
Check Point
PCB Reference
SF Connector,
POWER,
MAIN
SW3.3 (SF-6)
SD Connector,
POWER,
MAIN
SW15.5 (SD-4)
SD Connector,
POWER,
MAIN
SW5A (SD-2)
POWER,
SV Connector,
AUDIO,
SW9AU (SV-2)
MAIN
IC700-AAD0 to 23
MAIN
IC400-AAD0 to 23
Replace the lamp and reset the lamp time.
(Press the "POWER", " " and "
buttons at the same time.)
Room temperature not
SETTING conforming to the
specification.
Room temperature not
SETTING conforming to the
specification.
SETTING Covered vent
POWER ON after the green flash on the
LAMP indicator is turned off. When the
lamp is turned on after carrying out the
above operation for several times,
replace the lamp.
Lamp
Lamp malfunction or the
intake is blocked.
SETTING
According to the product's specifications.
Not a malfunction.
Replace the lamp and reset the lamp time.
(Press the "POWER", " " and "
buttons at the same time.)
According to the product's specifications.
Not a malfunction.
Replace the lamp and reset the lamp time.
(Press the "POWER", " " and "
buttons at the same time.)
IC2A2,
MAIN
ICLK1, IDA1
According to the product's specifications.
Not a malfunction.
According to the product's specifications.
Not a malfunction.
Reset
Main
Power
Main
Power
Main
Power
Main
Power
Main
Power
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