Panasonic PT-60LCX64-K Service Manual page 123

How to solve the problem indicated by the Error Indication of LED
Error No. Problem
16)
It indicates when the temperature detected by the
Temperature Sensor (R2821) on Thermistor 2 C.B.A.
exceeds 85 C (185 F).
1. The surrounding temperature of the place of use
may be too high.
2. The vents on the rear may be blocked.
Clogged Air Filter.
17)
1. The Digital Tuner Power is
18)
defective.
2. The DTV Tuner Unit is
defective.
3. The Main C.B.A. is defective.
4. The Tuner C.B.A. is defective.
Possible Solution
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 40 C (104 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.
Clean the Air Filters on the Projection
Unit.
Still NG
Replace the Fan Case Unit
(including FAN1).
Still NG
Check if the voltage at Pin 18 of
YES
P5302 on the Main C.B.A. is approx.
+1.4V.
NO
Check if the voltage at Pin 18 of
YES
P2501 on the LCD Drive C.B.A. is
approx. +1.4V.
NO
Check the signal line between Pin
18 of P2501 and Pin 2 of P2902 and
the surrounding parts on the LCD
Drive C.B.A.
Repair if necessary.
Check the voltage at the following
points on the Tuner C.B.A.
OK
(Use Pin 5 of P7002 as GND.)
P7002(Pin1): Approx.30V
P7002(Pin2): Approx.10V
NG
The Digital Tuner Power C.B.A.
is defective.
(Refer to "CHECKING THE
DIGITAL TUNER POWER
C.B.A.")
123
Check if the voltage at Pin 65 of
IC6003 on the Main C.B.A. is approx.
+1.4V.
YES NO
Check IC6003 and the
surrounding parts on the Main
C.B.A.
Repair if necessary.
Check the signal line between Pin
18 of P5302 and Pin 65 of IC6003
and the surrounding parts on the
Main C.B.A.
Repair if necessary.
Replace the 20-pin Cable (Ref. No.
14) connecting P5302 on the Main
C.B.A. and P2501 on the LCD Drive
C.B.A.
The DTV Tuner Unit and/or the
Tuner C.B.A. or Main C.B.A. is
defective.
(Refer to "HOW TO DETERMINE
IF THE DTV TUNER UNIT IS
DEFECTIVE.")
PT-60LCX64-K