JVC DT-V2000SU Service Manual page 52

DT-V2000SU
480i 16: 9 UNDER SCAN H.CENTER, H.SHIFT
Test equipment Signal generator (Cross-hatch circle pattern)
Test points
Adjustment locations DC03 (H.SHIFT), DC01 (H.SIZE)
1. Set the scan size to the UNDER, and set the ASPECT to 16 : 9 in the
MENU screen.
2. Input the cross-hatch circle pattern of the 480i component Y signal to the
input A terminal.
3. Adjust the DC03 to correct the horizontal center agree with the CRT
screen center.
4. Adjust the horizontal screen size to 385mm with the DC01.
480i 16: 9 UNDER SCAN V.CENTER, V.SHIFT
Test equipment Signal generator(Cross-hatch circle pattern)
Test points
Adjustment locations DC04 (V. SHIFT), DC02 (V. SIZE)
1. Set the scan size to the UNDER, and set the ASPECT to 16 : 9 in the
MENU screen.
2. Input the cross-hatch circle pattern of the 480i component Y signal to the
input A terminal.
3.Adjust the DC04 to correct the vertical center agree with the CRT screen
center.
4.Adjust the vertical scan size to 217mm with the DC02.
480i
16: 9 UNDER SCAN SIDE PINCUSHION, TRAPEZOID, PARALLELOGRAM
Test equipment Signal generator (Cross-hatch pattern)
Test points
Adjustment locations
DC05 (SIDE PIN), DC08 (TRAPEZOID), DC07 (PARALLELOGRAM)
1. Set the scan size to the UNDER, and set the ASPECT to 16 : 9 in the
MENU screen.
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2. Input the cross-hatch pattern of the 480i component Y signal to the input
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A terminal.
3. If the vertical lines are distorted in the side pincushion condition, adjust
the DC05 to 2nd vertical lines from the screen edges become straight.
4. Confirm the trapezoidal distortion. If illeagal, adjust the DC08 to correct
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the distortion. -.
5. Confirm the parallelogram distortion. If illeagal, adjust the DC07 to correct
to straight
the distortion.
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No. 51519B
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