Service manual

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DT-100

ELECTRICAL ADJUSTMENT

1 EEPROM

initialization

1. Turn on the power (with the

lamp on) and warm up the

set for 15 minutes.

» Make the following settings.

Press S2551 to call the process mode and execute

"SS2" on SS menu.

3 Adjustment of

CW index

1. Signal input: Send 256

STEP color bar.

XGA series (XGA60HZ),

SVGA series (SVGA60HZ)

2. Select the following group

and subject.

Group: ADJUST

CW/Auto KS

Subject: CW-INDEX.

No. Adjusting point Adjusting conditions Adjusting procedure

4 R/G/B contrast

adjustment

(manual or

automatic)

1. Select the following group

and subjects.

Group : ADJUST

AD/DLP

Subject : R-CONT

G-CONT

B-CONT

(Process GAMMA interlock)

2. Feed white signal with the

amplitude level of 96%

(0.67Vpp). XGA series

(XGA60HZ), SVGA series

(SVGA60HZ)

1. Measure chromaticity of the 96% white wind pattern

using CA100.

2. On the screen where bit dropouts occur, raise the

values of R/G/B-Contrast. Adjust the values so that

bright red, green, and blue bit dropouts appear on a

black background; and amounts of change in x value

of R and y values of G/B become 100/1000 or more.

3. If adjustment is performed manually watching the

screen, make adjustment so that bright red, green,

and blue bit dropouts appear on more than half of

the screen.

1. Feed the signal to input 1.

2. Select the adjustment item and adjust the lamp

gradation patterns of RGBW so that smooth

patterns without noise appear.

5 RGB white

balance adjust-

ment

1. Feed the 50% gray signal.

XGA series (XGA60HZ),

SVGA series (SVGA60HZ)

2. Select the following group

and subjects.

Group : ADJUST

AD/DLP

Subject : R-GAIN

G-GAIN

B-GAIN

1. Raise the values of two of R/G/B-GAIN (default:

100) so that the following chromaticity values are

obtained using CL200.

x value: 300 ± 5

y value: 320 ± 5

6 sRGB white

balance adjust-

ment

1. Feed the 50% gray signal.

XGA series (XGA60HZ),

SVGA series (SVGA60HZ)

2. Select the following group

and subjects.

Group : CONFIRM/DLP

Subject : S-G-OS

S-B-OS

1. Adjust S-G-OS and S-B-OS so that the following

chromaticity values are obtained using CL200.

x value: 313 ± 5

y value: 329 ± 5

2 Model setting (Process menu)

1. Select the following group

and subject.

Group: CONFIRM

Subject: MODEL

1. Set as below.

: 1 (default)