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Lamp

Light source. DC-driven high-pressure mercury vapor lamp.

UV/IR filter

Used to absorb ultraviolet and infrared rays.

Colour wheel

Used to let the source light through the colour filter and to separate it into
R, G and B colours.

Rod lens

Used to make for uniform light beams.

Relay lenses

Used to collect the light from the rod lens into the DMD
chip.

Reflector

Used to reflect the light from the relay lenses against the
DMD chip.

Prism

Used to introduce the light from the reflector over the effective surface of
the DMD chip. When the micromirror gets tilted (ON) as specified, the
reflected light is guided to the projection lens.

DMD chip

Used to turn on and off the micromirror in response to the ratio of colour
components at each dot and thus to reflect the incoming light
accordingly.

Projection lens

Used to enlarge the light from the DMD chip and to get the light
projected on the screen.

To repair this set without top cabinet, attach the left side body beforehand. (Since the exhaust
heat gets in around the set and the temperature sensor detects it giving the TEMP error and
the lamp goes off.)

32

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

1

Initialization of EEPROM

1. Turn on the power (the lamp lights
up) and warm up the system for 15
minutes.

1. Make the following settings.
Press S2002 to call the process mode and
execute "SS2" on SS menu.

2

Adjustment of CW
index

1. Input the gradation pattern of RGB.
2. Select the following group and
subject.
Group: DLP
Subject: Select CW-INDEX.

1. Select subject and make adjustment so
that the lamp gradation patterns of R, G and
B should be smooth without noise.

3-1

Adjustment of R brightness
/ contrast

1. Select the following group and
subject.
Group: AD
Subject: R-Bright
R-Contrast
2. Feed the window pattern having
91%(0.64Vp-p) R signal and 0%.
(Process gamma interlock)

1. On the bit-less screen, adjust in the order
of black side R-bright and white side R-
contrast.
Adjust the black level so that bright red bit-
less may disappear and may turn pale red.
Adjust the white level so that red bit-less
may appear from black.

3-2

Adjustment of G brightness
/ contrast

1. Select the following group and
subject.
Group: AD
Subject: G-Bright
G-Contrast
2. Feed the window pattern having
91%(0.64Vp-p) G signal and 0%.
(Process gamma interlock)

1. On the bit-less screen, adjust in the order
of black side G-bright and white side G-
contrast.
Adjust the black level so that bright green
bit-less may disappear and may turn pale
green.
Adjust the white level so that green bit-less
may appear from black.

3-3

Adjustment of B brightness
/ contrast

1. Select the following group and
subject.
Group: AD
Subject: B-Bright
B-Contrast
2. Feed the window pattern having
91% (0.64Vp-p) B signal and 0%.
(Process gamma interlock)

1. On the bit-less screen, adjust in the order
of black side B-bright and white side B-
contrast.
Adjust the black level so that bright blue bit-
less may disappear and may turn pale blue.
Adjust the white level so that blue bit-less
may appear from black.

4

Adjustment of DTV
brightness / contrast

1. Feed 480P 100% Black/White
window pattern signal.
2. Select the following group and
subject.
Group: DTV
Subject: Bright
Contrast
(Process gamma interlock)

1. On the bit-less screen, adjust in the order
of black side Bbright and white side
Contrast.
Adjust the black level so that bright green
bit-less may disappear and may turn pale
green.
Adjust the white level so that bit-less may
appear from black.

5

Adjustment of DTV tint

1. Select the following group and
subject.
Group: DTV
Subject: Tint

1. Confirm the fixed value.
Tint: 8