Sony TRINITRON PVM-14L1 Service Manual page 27

2-12. White Balance Adjustment
2-12-1. Sub Bright Adjustment
1
2.
Receive Gray Scale pattern signal.
* Gray scale : 0, 5, 10, 15 IRE (4 Steps)
Set the following items at PICT/SOUND CTRL.
CONTRAST => MIN
BRIGHTNESS => 0 (CENTER)
Adjust SUB BRIGHT using the resistor of [SUB
BRIGHT] at SEVICE MODE [SIGNAL] - [WHITE
BALANCE}.
Check 0 and 5 IRE section of Gray Scale is completely
cut off and 10 IRE section of it lights faintly. (If not
readjust it.)
2-12-2. White Balance Adjustment [D65]
Set the COLOR TEMP to D65.
Receive window pattern signal.
Adjust the D65 white balance within standard (de-
scription below) using the resistor [R DRIVE] and [B
DRIVE] at SERVICE MODE [SIGNAL]-[WHITE
BALANCE]-[AJUST GAIN].
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Switch the item R => G => B with [ENTER], and
change the data with [+]/[-].
Change over to all white signal and lower signal level ,
set brightness to 3 (+1/—0) cd/m'.
Adjust the D65 white balance within standard (de-
scription below) using the resistor [OFFSET R] and
[OFFSET G] at SERVICE MODE [SIGNAL]-
[WHITE BALANCE]-[AJUST BIAS].
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Switch the item R => G with [ENTER], and change
the data with [+]/[-].
Repeat the manual 2 to 5 until be able to adjust GAIN
side and BIAS side to the same value.
PVM-1411/14L1MDE/20L1
SSM-14L1/20L1
2-12-3. White Balance Adjustment [D93]
1.
5.
Receive window pattern signal.
Set the COLOR TEMP to D93.
Adjust the D93 white balance within standard (de-
scription below) using the resistor [R DRIVE] and [B
DRIVE] at SERVICE MODE [SIGNAL]-[WHITE
BALANCE]-[AJUST GAIN] .
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Switch the item R => G => B with [ENTER], and
change the data with [+]/[—].
Change over to all white signal and lower signal level,
set brightness to 3cd/m?,
Adjust the D65 white balance within standard (de-
scription below) using the resistor [OFFSET R] and
[OFFSET G] at SERVICE MODE [SIGNAL]-
[WHITE BALANCE]-[AJUST BIAS] .
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Switch the item R => G with [ENTER], and change
the data with [+]/[—].
Repeat the manual 2 to 5 until be able to adjust GAIN
side and BIAS side to the same value.