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1-2-1. Sub Carrier Frequency Adjustment
Screen display:
01 INT SC
Test equipment: Frequency counter
Test point:
TL01/Driver PC board
Adjusting point:
DATA UP/DOWN
Specification:
3.579545 MHz ± 10 Hz
Note: External sync mode is not set.
DC/DC
TL01
Fig. 10
1-2-2. R - Y Carrier Balance Adjustment
Screen display:
02 R - Y CAR BAL
Test equipment: Vector scope (MAX GAIN)
Test point:
VIDEO OUT
Adjusting point:
DATA UP/DOWN
1. Set the luminance spot of the vector scope
at its center with the DATA buttons.
1-2-3. B - Y Carrier Balance Adjustment
Screen display:
03 B - Y CAR BAL
Test equipment: Vector scope (MAX GAIN)
Test point:
VIDEO OUT
Adjusting point:
DATA UP/DOWN
1. Set the luminance spot of the vector scope
at its center with the DATA buttons.
2. Repeat the items 1-2-2 and 1-2-3 to set the
luminance spot to the center of the vector
scope.
1-2-4. REF G Adjustment
Screen display:
Test equipment: WFM (LPF mode)
Test point:
Adjusting point:
Specification:
1. Adjust the white level of the waveform to 60
± 1 IRE with the DATA buttons.
1-2-5. REF R , REF B Adjustment
Screen display:
Test equipment: Vector scope (MAX GAIN)
Test point:
Adjusting point:
1. Set the luminance spot of the vector scope
at its center by adjusting at RL50, RL51.
Note: The black and white luminance spots appear.
Adjust either of the two which is moved by the
RL50, RL51.
2-5
04 REF G
VIDEO OUT
DATA UP/DOWN
60 ± 1 IRE
05 REF R, REF B
VIDEO OUT
RL50, RL51/Driver PC board
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