76232103 datasheet(11/70 Pages) TOSHIBA

11 / 70 page

– 11 –

Cutoff adjustment and

white balance adjust-

ment

RCUT

GCUT

BCUT

GDRV

BDRV

Screen VR

Sub brightness adjus-

tment

(BRTC)

1) Setting to horizontal alignment, turn the screen VR to

stop where the brightness lines are slightly luminous.

(Adjustment shall be made so that they look almost

white.)

2) Cancel horizontal alignment.

3) Varying R, G and B CUTOFF, make white balance

adjustment in the dark area.

4) Adjusting G and B DRIVE, make white balance

adjustment in the bright area.

5) Repeat procedures 3) and 4) if necessary.

Adjustable value:

Bright area: 11500K+0.0075uV

(103cd/m2)

Dark area:

10500K+0.0105uV

(17cd/m2)

1) Select BRTC in the sub data adjustment mode.

Adjust the number of black solid lines to 4±1.5.

No.

ADJUSTMENT PROCEDURE

V/C syatem adjustment

ADJUSTING ITEMS

AND POINTS

REMARKS

No outside lighting shall

be allowed.

Measurement shall be

performed at the center of

CRT.

Receiver shall be in the

standard state.

Total white signal Varying

the level of input signal,

adjust the brightness.

J-2ch sub brightness

signal DYNAMIC

Focus Adjustment

Main Focus: T461

Conditions

: PAL RETMA ch

Screen Size

: Wide

Presentation Mode : Dynamic

Only for 29-inch model

1) Adjust the Main Focus VR knob of T461 model to optimize center focus.

Refer to the diagram below for the location of the Main Focus VR knob.

No.

ADJUSTMENT PROCEDURE

Circuit adjustment (Procedure Manual for Deflection Adjustment)

ADJUSTING ITEMS

AND POINTS

Main Focus VR knob

SCREEN knob

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