PANASONIC PT-44LCX65_PT-53LCX65_PT-61LCX65 _ LED BLINKS _ SYMPTOMS & CHECKING
LED BLINKS
- Each LED indication facilitates finding the cause of the error.
- When an error is detected, the Lamp comes off and the LED on the front will flash.
- When two or more errors have occurred at the same time, the LED will alternate flash patterns as shown above every 5 seconds.
Warning OSD appears when the air filter is clogged.
LAMP
OFF: The LED will flash immediately after the Lamp comes off.
Error No.
|
Error Information
|
POWER LED
|
TEMP LED
|
LAMP LED
|
1
|
Fan1,
Fan2 or Fan3 stopped
|
flashes orange once every 5
seconds
|
---
|
---
|
2
|
Lamp
Cover open
|
flashes orange twice
every 5 seconds
|
---
|
---
|
3
|
Temperature Sensor shorted
or open
(Thermistor
1 C.B.A.)
|
---
|
flashes once
every 5 seconds
|
---
|
4
|
Abnormal Temperature
(Thermistor
1 C.B.A.)
|
---
|
flashes twice
every 5 seconds
|
----
|
5
|
Ballast
Error (abnormal Lamp or Ballast)
|
---
|
---
|
flashes once
every 5 seconds
|
6
|
Ballast
Error (abnormal Lamp voltage)
|
---
|
---
|
flashes twice
every 5 seconds
|
7
|
Ballast
Error (abnormal temperature)
|
---
|
---
|
flashes 3 times
every 5 seconds
|
8
|
Ballast
Error (other causes)
|
---
|
---
|
flashes 4 times
every 5 seconds
|
9
|
Abnormal Voltage (+17V,
+9V, +5V line) for LCD
Drive
C.B.A.
|
flashes orange 7 times every 5 seconds
|
flashes 3 times
every 5 seconds
|
flashes 3 times
every 5 seconds
|
10
|
Temperature Sensor shorted
or open
(Thermistor
2 C.B.A.)
|
---
|
flashes 3 times
every 5 seconds
|
---
|
11
|
Abnormal Temperature
(Thermistor
2 C.B.A.)
|
---
|
flashes 4 times
every 5 seconds
|
---
|
12
|
Clogged
air filter
|
---
|
flashes 5 times
every 5 econds
|
---
|
TO SOLVE THE PROBLEM INDICATED BY THE ERROR INDICATION OF LED
- All symptom is that Lamp turns off or Lamp does not light up)
Note: Before performing the troubleshooting, confirm that all connector cables in the unit are connected to connectors correctly.
Error No
|
Problem
|
Possible Solution
|
1
|
Cooling
Fan (Fan1, Fan2 and/or Fan3) malfunction.
|
Are
the Fan1, Fan2 and Fan3 operating?
No: Replace the TV unit
(Power C.B.A. or
Base C.B.A.). Still NG,
replace the Projection Unit.
Only
the fan-1 stops: Replace the Projection Unit.
Only
the fan-2 stops: Replace the Projection Unit.
Only
the fan-3 stops: Replace the Fan3.
|
2
|
Mis-installed
the Lamp Cover (the Lamp cover is open).
|
|
3
|
The
temperature sensor (R2811) on the Thermistor 1 C.B.A. on the Fan 1 is short
or open.
|
Remove
P2302 connector on the LCD Drive C.B.A. and check if the resistance between
pin1 and pin2 of P2811 on the Thermistor 1 C.B.A. is 5k 200k . If NG, replace
the Temperature Sensor (R2811) on the Thermistor 1 C.B.A. Still NG, replace
the Projection Unit. Still NG, replace the Main C.B.A.
Note: The Projection Unit includes LCD Drive C.B.A.
|
4
|
Temperature Sensor (R2811)
on Thermistor 1 C.B.A. exceeds 55 °C (131 °F).
1. The surrounding
temperature of the place of use may be too high.
2.
The vents on the rear may be blocked.
|
1. Relocate the unit to a
proper location.
2.
Check if the fans are operating properly.
|
5
|
1. The Lamp is not cooled
off.
2. Thermal Fuse Unit (115°C
(239°F)) is defective (open).
3. The Lamp is defective
(crack).
4. The Lamp voltage becomes
more over 130V or less than 30V.
5. The Ballast C.B.A. is
defective.
6.
The Main C.B.A. is defective.
|
1. Confirm that the Thermal
Fuse Unit (115°C(239°F)) on the Lamp House is not open.
2. Wait until the Lamp is
cooled off and try to turn the power back on. If same error LED indication
continues, remove the Lamp and visually inspect it. If it is cracked, it must
be replaced. If the Lamp is not cracked, replace the Ballast C.B.A.
3.
If still NG, replace the TV unit (Main C.B.A.).
|
6
|
The
Lamp is defective (short of the Lamp).
|
Replace
the Lamp.
|
7
|
Thermal
fuse (F1302) 117 °C (243 °F) on the Ballast C.B.A. is open due to abnormal
temperature rise.
|
Replace
the Ballast C.B.A.
|
8
|
The
Ballast C.B.A. is defective.
|
If
the Lamp does not light up after attempting turning on the power 2 or 3
times, replace the Ballast C.B.A.
|
9
|
1. +17V line on the LCD
Drive C.B.A. error.
2. +9V line on the LCD
Drive C.B.A. error.
3.
+5V line on the LCD Drive C.B.A. error.
|
1. Replace the TV unit
(Power C.B.A. or Base C.B.A.).
2.
If still NG, replace the Projection Unit (LCD Drive C.B.A.).
|
10
|
The
temperature sensor (R2821) on the Thermistor 2 C.B.A. on the Lamp House is
short or open.
|
Remove
P2303 connector on the LCD Drive C.B.A. and check if the resistance between
pin1 and pin2 of P2821 on the Thermistor 2 C.B.A. is 5k 1M . If NG, replace
the Temperature Sensor (R2821) on the Thermistor 2 C.B.A. Still NG, replace
the Projection Unit. Still NG, replace the Main C.B.A.
Note: The Projection Unit includes LCD Drive C.B.A.
|
11
|
It indicates when the
temperature detected by the Temperature Sensor (R2821) on Thermistor 2 C.B.A.
exceeds 105 °C (221 °F).
1. The surrounding
temperature of the place of use may be too high.
2.
The vents on the rear may be blocked.
|
1. Relocate the unit to a
proper location.
* Do not place in direct
sunlight and other sources of direct heat.
* Do not place the unit in
humid or dusty location, or areas exposed to smoke or steam. (surrounding temperature should be between
0 °C (32 °F) and 35 °C (95 °F) and humidity should be between 20 % and 80 %
(with no condensation).)
* The vents are not
blocked.
It is recommended that a
gap of at least 10 cm is left all around the unit even when it is placed
inside a cabinet or between shelves.
2.
Check if the fans are operating properly.
|
12
|
Clogged
air filter of the Fan Case Unit.
|
1. Cleaning the Air Filter
on the Projection Unit.
2. If still NG, replace the
Projection Unit.
3.
If still NG, replace the TV unit (Main C.B.A.).
|
