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PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
POLARIZER ADJUSTMENT
(Mechanical Adjustment)
Purpose:
To set the polarizer in the proper position.
Symptom of Misadjustment:
The picture will become bluish or reddish or greenish.
TP
ADJ.
Polarizer Green
Polarizer Red
Polarizer Blue
EQUIPMENT
Screwdriver (+),
PC(2), Test Pattern Signal,
(Video Pattern Generator)
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. Set to a desired mode except TV mode by pressing TV/
VIDEO key on the remote.
3. No signal input.
4. Perform Polarizer (Green, Red and Blue) Adjustment as
follows in order.
OR
SET UP 2:
1. Place the unit into Service Position.
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 Polarizer (Green, Red and Blue) Adjustment as
follows in order.
OR
SET UP 3:
1. Place the unit into Service Position.
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 Polarizer (Green, Red and Blue) Adjustment as
follows in order.
Note:
Confirm that the picture will become black (not become bluish
or reddish or greenish) after adjustment.
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)
SPECIFICATION
Refer to Description below
POLARIZER GREEN ADJUSTMENT
1. Loosen a Screw (A) of the Polarizer Green Unit.
2. Move the 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) (30+/-10 N
Polarizer Green Unit
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) (30+/-10 N
Polarizer Red Unit
Screw (B)
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) (30+/-10 N
52
·
cm).
Screw (A)
·
cm).
·
cm).
Polarizer Blue Unit
Screw (C)
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