Panasonic PT52LCX66 - MULTI MEDIA DISPLAY Service Manual page 14

PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
RESET USER'S MEMORY FUNCTIONS
Be sure to reset the user's memory:
- After replacing the Digital Tuner P.C.B.
- If the secret code for V-chip has been forgotten.
- When moving the unit to a new location.
- When resetting SOS (Error) number records.
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 3 seconds. When
reset is finished, power shuts off automatically (the user's
memory is reset).
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.
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.
HOT CIRCUIT
Primary circuit exists on the Power P.C.B.
This circuit is identified as "HOT" on the P.C.B. and in the
Service Manual. Use extreme care to prevent accidental shock
when servicing.
MODEL NO. IDENTIFICATION MARK
Use Marks shown in the chart below to distinguish the different
models included in this Service Manual.
MODEL
PT-52LCX66
PT-56LCX66
PT-61LCX66
PT-52LCX16
PT-56LCX16
NOT USED
Note:
Refer to Item 3 of Schematic Diagram Notes of
Schematic Diagram and Circuit Board Layout Notes,
for mark "PT."
14
MARK
A
B
C
D
E
PT