Panasonic PT-56DLX25, Service Manual

Page: 46 / 98

c. Electrical Picture Position Adjustment
1) Adjust OPT HPOSI so that "C" is symmetrical to "D" by
pressing the VOLUME UP/DOWN key on the remote to
change the value.
2) Press the CH UP/DOWN key on the remote to return to
the OTHER menu.
3) Select OPT VPOSI by pressing CH UP/DOWN key on
the remote.
4) Adjust OPT VPOSI so that "A" is symmetrical to "B" by
pressing the VOLUME UP/DOWN key on the remote to
change the value.
5) Confirm that all "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
"K", "L" are each symmetrical.
6) If not, adjust the "OPT HPOSI" and "OPT VPOSI"
(repeat steps 1-6) until the picture is in the correct
position.
7) Press the CH UP/DOWN key on the remote to return to
the OTHER menu.
<Focus Screen>
"G" "H" "B"
"E"
"I"
"C"
"K"
"J"
"D"
"C"
width "c"
width "c" = width "d"
width "a" = width "b"
width "a"
width "b"
"D"
"L"
"F" "A"
"B"
"A"
width "d"
O P T H P O S I 8 0 0 0
O P T V P O S I 8 0 0 0
d. Copying the adjustment data of the Optical
Block Unit to EEPROM IC on the Main
C.B.A. (Circuit Board DG)
1) Press the CH UP/DOWN key on the remote to select
"EEP COPY L->DG" on menu.
Fig. M1-7
2) Press the OK key for more than 3 seconds. "OK" will
appear for 5 seconds. The adjustment data of the
Optical Block Unit will copy to EEPROM IC on the Main
C.B.A. (Circuit Board DG).
Fig. M1-8
<Factory Adjust Mode>
F A C T O R Y A D J U S T 1 / 1
M : 2 . 0 2 0
V I D E O A D J
S O U N D
F A N
O T H E R
P A R T I A L
D T B O A R D
E E P C O P Y L - > D G
D E F A U L T S E T
<Factory Adjust Mode>
F A C T O R Y A D J U S T 1 / 1
M : 2 . 0 2 0
V I D E O A D J
S O U N D
F A N
O T H E R
P A R T I A L
D T B O A R D
E E P C O P Y L - > D G O K
D E F A U L T S E T
e. Verifying the Color Wheel Index Delay and
the white balance on the screen
1) Display the internal pattern for "Color Wheel Index
Delay" in Factory Adjust Mode.
If required, perform the "Color Wheel Index Delay"
adjustment.
2) Check the white balance on the screen. If required,
perform the "White Balance" adjustment.
PT-56DLX75 / PT-61DLX75
44