Toshiba 29CJZ8UR, Service Manual

Page: 12 / 101

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GENERAL ADJUSTMENTS
ADJUSTMENT PROCEDURE
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 ad-
justment in the bright area.
5) Repeat procedures 3) and 4) if necessary.
Adjustable value:
Bright area: 0.0075uV
(103cd/m 2 )
Dark area: 0.0105uV
(17cd/m
2 )
1) Select SCNT in the sub data adjustment mode.
2) With TP-Y, set the amplitude from pedestal level to
white peak to 0.70
±
0.03 V (0-p).
1) Select BRTC in the sub data adjustment mode.
Adjust the number of black solid lines to 4
±
1.5.
ADJUSTING ITEMS
AND POINTS
Cutoff adjustment and
white balance adjust-
ment
RCUT
GCUT
BCUT
GDRV
BDRV
Screen VR
Sub contrast adjustment
(SCNT)
Sub brightness adjust-
ment
(BRTC)
V/C system adjustment
No.
1
2
3
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
J-2ch sub brightness signal
DYNAMIC
ADJUSTMENT PROCEDURE
ADJUSTING ITEMS
AND POINTS
No.
REMARKS
1) Select PCNT in the sub data adjustment mode.
2) With TP-Y, make adjustment so that the amplitude of
sub screen (right image) coincides with that of main
screen (left image).
DW sub screen contrast
adjustment
(PCNT)
4
J-2ch for both main and sub
screens
Sub brightness signal
DYNAMIC
V/C system adjustment (Chassis adjusment)