Panasonic PT-52LCX66-K, Service Manual, Page: 96 / 223

TP
Screwdriver (+),
PC(2), Test Pattern Signal,
(NTSC Video Pattern
Generator)
Refer to Description below
SPECIFICATION EQUIPMENT
ADJ. INPUT
No signal input (Black screen
is displayed.) (SET UP 1)
or
(PC Input Terminal)
Black Signal (SET UP 2)
or
(VIDEO Input 1 Terminal)
Black Signal (SET UP 3)
Light IN Polarizer Green
Light IN Polarizer Red
Light IN Polarizer Blue
LIGHT IN POLARIZER RED ADJUSTMENT
1. Loosen a Screw (B) of the Light IN Polarizer Red Unit.
2. Move the Light IN Polarizer Red Unit to the right and left
so that there is no red tint on the whole screen, and then
tighten a Screw (B) (0.8-1.0 N
·
m).
Fig. E4-2
LIGHT IN POLARIZER BLUE ADJUSTMENT
1. Loosen a Screw (C) of the Light IN Polarizer Blue Unit.
2. Move the Light IN Polarizer Blue Unit to the right and left
so that there is no blue tint on the whole screen, and
tighten a Screw (C) (0.8-1.0 N
·
m).
Fig. E4-3
POLARIZER ADJUSTMENT
Note:
Be sure to perform this adjustment after Full Mirror
Adjustment are completed.
Purpose:
To set the polarizer in the proper position.
Symptom of Misadjustment:
The picture will become bluish or reddish or greenish.
Note:
This adjustment should be done in a darkroom.
Test Pattern Signal:
- Black Signal: "8 Black" in "1 Color"
SET UP 1:
1. Place the unit into Service Position (2).
2. Set to a desired mode except TV mode by pressing TV/
VIDEO key on the remote.
3. No signal input.
4. Perform Light IN Polarizer (Green, Red and Blue)
Adjustment as follows in order.
OR
SET UP 2:
1. Place the unit into Service Position (2).
2. Connect the PC (2) to the PC Input Terminal with the
RGB cable.
3. Supply Black Signal and set to PC mode by pressing
TV/VIDEO key on the remote.
4. Perform Light IN Polarizer (Green, Red and Blue)
Adjustment as follows in order.
OR
SET UP 3:
1. Place the unit into Service Position (2).
2. Connect the NTSC Video Pattern Generator to the
VIDEO Input 1 Terminal.
3. Supply Black Signal and set to VIDEO 1 mode by
pressing TV/VIDEO key on the remote.
4. Perform Full Mirror (Green, Red, and Blue) Adjustment
as follows in order.
LIGHT IN POLARIZER GREEN ADJUSTMENT
1. Loosen a Screw (A) of the Light IN Polarizer Green Unit.
2. Move the Light IN Polarizer Green Unit to the right and
left so that there is no green tint on the whole screen,
and then tighten a Screw (A) (0.8-1.0 N
·
m).
Fig. E4-1
Note:
Confirm that the picture will become black (not become bluish
or reddish or greenish) after adjustment.
Screw (A)
Light IN Polarizer Green Unit
Screw (B)
Light IN Polarizer
Red Unit
Screw (C)
Light IN Polarizer
Blue Unit
PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K
96