Panasonic PT-56LCX66, Service Manual, Page: 15 / 83

Note:
The TV Unit includes the Main P.C.B.
CAUTION:
1. Be sure to make a note of the CURRENT LAMP value
(value A) in Service Mode (1/4):
Value A
(Changeable)
<Service Mode (1/4)>
S E R V I C E M o d e 1 / 4
L A M P O P E R A T I O N T I M E
C U R R E N T L A M P : 2 0 0 0 h
O S D D I S P : O N
L O N C O U N T : 1 5 3
B K S V : 4 B 7 E 3 D C A F B
Fig. 2
LAMP OPERATION TIME is stored in EEPROM on the
Main P.C.B. Therefore, before removing the Main P.C.B. or
the TV Unit at the user’s location, make a note of the
CURRENT LAMP value (value A) in Service Mode (1/4).
Then, after installing the new Main P.C.B. or the TV Unit at
the user’s location, set the CURRENT LAMP value to the
original value (value A) in Service Mode.
Otherwise, OSD and LED Lamp replacement indications
will be displayed at the wrong time.
Note:
In case it is impossible to make a note of the CURRENT
LAMP value because of a defective Main P.C.B., ask the
customer their daily average use and the approximate age
of the current Lamp. Then, calculate the CURRENT LAMP
value as follows and make a note.
Note:
The TOTAL value can be set to the original value in Service
Mode (2/4) by similar method:
Before removing the Main P.C.B. at the user’s location,
make a note of the TOTAL value in Service Mode (2/4).
Then, after installing the new Main P.C.B. at the user’s
location, set the TOTAL value to the original value in
Service Mode.
BEFORE REMOVING THE MAIN P.C.B. OR
THE TV UNIT FROM THE UNIT AT THE
USE’S LOCATION
Daily average use
X =
Approx. age CURRENT LAMP
(hours) (days) (hours)
CAUTION:
1. Set CURRENT LAMP value to original value as follows.
1) Select CURRENT LAMP in Service Mode (1/4).
2) Press the VOLUME UP/DOWN key on the remote to
change to the original value (value A) that was noted
before removing the Main P.C.B. or the TV Unit at the
user’s location.
Value A
(Changeable)
<Service Mode (1/4)>
S E R V I C E M o d e 1 / 4
L A M P O P E R A T I O N T I M E
C U R R E N T L A M P : 2 0 0 0 h
O S D D I S P : O N
L O N C O U N T : 1 5 3
B K S V : 4 8 B F 9 D 7 2 B 5
WHEN REINSTALLING THE MAIN P.C.B.
OR THE TV UNIT FROM THE UNIT AT THE
USE’S LOCATION
Fig. 3
Service Mode Map
CH DOWN key CH UP key
CH DOWN key
CH DOWN key
CH UP key
Enter:
VOLUME DOWN TV/VIDEO key
(on the front) (on the remote)
(for more than 5 seconds in power off condition)
Exit:
Power OFF.
< Service Mode (2/4) >
< Service Mode (3/4) >
< Service Mode (1/4) >
S E R V I C E M o d e 1 / 4
L A M P O P E R A T I O N T I M E
C U R R E N T L A M P : 2 0 0 0 h
O S D D I S P : O N
L O N C O U N T : 1 5 3
B K S V : B 0 3 A 5 9 C D 6 6
Power ON
S E R V I C E M o d e 3 / 4
I C 6 0 0 1 P O R T
P 0 : 1 0 1 0 1 0 1 0 P 8 : - - - 1 0 1 1 0
P 1 : - 1 1 1 1 1 0 0 P 9 : - - 1 1 1 1 1 1
P 2 : 0 0 0 0 0 0 0 0 P A : 0 0 0 0 0 0 0 0
P 3 : 0 0 0 0 0 0 0 0 P B : 1 1 1 1 1 1 1 0
P 4 : - - 1 1 1 1 1 0 P C : 1 1 1 1 1 1 0 0
P 5 : 1 0 1 1 0 1 0 1 P D : - - - - - 1 1 1
P 6 : 0 1 0 1 1 0 0 1 P E : 1 1 0 0 0 0 0 0
P 7 : 1 0 1 0 1 0 0 1 P F : - - - - 0 0 1 1
CH DOWN key CH UP key
< Service Mode (4/4) >
S E R V I C E M o d e 4 / 4
- S O S -
L A S T S O S H 1 0 S A F E 0 1
S A F E 1 0 . 4 0 . 5 0 . 5 0 . 4 0
H 1 0 S O S 2 : 0 1 H 2 0 F A N S T : 0 0
H 3 0 D T 5 V : 0 0 H 4 0 A C L S T : 0 0
H 5 0 G C 4 P R : 0 1
S E R V I C E M o d e 2 / 4
I R : 1 U N I T : 1
I C 2 3 0 1 : 1 3 1 0 1 : 1 4 0 0 2 : 1
4 5 0 4 : 1 5 0 0 0 : 1 5 0 0 1 : 1
5 8 0 1 : 1 6 0 0 0 : 1 9 5 0 2 : 1
T O T A L : 1 2 3 4 5 h
T U 8 2 0 0 : 1
E : 0 6 0 3 0 3 0 1
I C 6 0 0 1 V : 0 0 0 5 0 2 4
BKSV number
PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
15