Panasonic PT43LCX64 - MMD DIGITAL TUNER, Руководство по обслуживанию

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BEFORE REMOVING THE PROJECTION
UNIT FROM THE UNIT AT THE USER’S
LOCATION
1. When removing the Projection Unit, remove the Lamp from
the Projection Unit and keep it. Then, reinstall this Lamp
into the new Projection Unit.
2. When removing the Projection Unit, remove the Fan 3 Unit,
the Top Duct 3 Unit and the 20-pin Cable from the Projection
Unit and keep them. Then, reinstall the Fan 3 Unit, the Top
Duct 3 Unit and the 20-pin Cable into the new Projection
Unit.
Fan 3 Unit
GND
Wire
Top Duct 3 Unit
Lamp
Screw
for lamp
402
402
421
421
Clamper
Projection Unit
21
P2904
MODEL NO. IDENTIFICATION MARK
Use Marks shown in the chart below to distinguish the different
models included in this Service Manual.
MODEL
PT-43LCX64
PT-50LCX64
PT-60LCX64
NOT USED
MARK
A
B
C
PT
Note:
Refer to Item 3 of Schematic Diagram Notes of
Schematic Diagram and Circuit Board Layout Notes,
for mark "PT."
HOT CIRCUIT
Primary circuit exists on the Audio Amp C.B.A., the Ballast
C.B.A. and the Power C.B.A.
This circuit is identified as "HOT" on the C.B.A. and in the
Service Manual. Use extreme care to prevent accidental shock
when servicing.
DO NOT UNPLUG AC CORD DURING
COOLING OPERATION
The lamp cooling fan will continue to operate for approximately
1 minute after the power is turned off.
At the same time, the POWER LED will flash red.
Do not disconnect the AC Cord from the power outlet and do
not open any circuit breakers while the cooling fan is still
operating.
CLOGGED AIR FILTER DETECTION
When a dirty or clogged air filter is detected, the OSD display
appears for 1 minute. And then the Lamp is turned OFF.
When this OSD display appears, remove the Projection Unit
from rear, and clean the air filters gently on the Projection Unit.
AIR FILTER CLEANING
IS RECOMMANDED AT THIS
TIME. FIRST TURN THE
UNIT OFF.
PLEASE CALL FOR
SERVICE.
UNIT WILL BE TURNED
OFF AFTER 1 MINUTE.
RESET USER’S MEMORY FUNCTIONS
Be sure to reset the user’s memory:
•
After replacing the DTV Tuner Unit (included in the TV/
Tuner Unit)
• If the secret code of V-chip is forgotten.
• When moving the unit to a new location.
1. Turn on the power.
2. Press and hold the VOLUME DOWN button on the unit and
the OK key on the remote for more than 5 seconds. When
reset is finished, power shuts off automatically (the user’s
memory is reset).