JVC DT-V2000SU Service Manual page 59

•
•
•
•
•
720P 16 : 9 UNDER SCAN H.CENTER, H.SHIFT
Test equipment Signal generator (Cross-hatch circle pattern)
Test points
Adjustment locations
DH03 (H.SHIFT), DH01 (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 720P component Y signal to
the input A terminal.
3. Adjust the DH03 to correct the horizontal center agree with the CRT
screen center.
4. Adjust the DH 01 so that the picture size falls within the place of 10mm or
-----
more from both sides of the escutcheon.
10mrr
720P 16 : 9 UNDER SCAN V.CENTER, V.SHIFT
Test equipment Signal generator (Cross-hatch circle pattern)
Test points
Adjustment locations DH04 (V. SHIFT), DH02 (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 720P component Y signal to the
input A terminal.
3.Adjust the DH04 to correct the vertical center agree with the CRT screen
center.
4.Adjust the vertical scan size to 217mm with the DH02 .
Escutcheon
;t
/
r--..______
/ \
I \
\
/
"'
/
'----. /
720P 16 : 9 UNDER SCAN SIDE PINCUSHION, TRAPEZOID, PARALLELOGRAM
Test equipment Signal generator (Cross-hatch pattern)
Test points
Adjustment locations DH05 (SIDE PIN), DH08 (TRAPEZOID),
DH07 (PARALLELOGRAM)
1.Set the scan size to the UNDER, and set the ASPECT to 16: 9 in the
MENU screen.
2. Input the cross-hatch pattern of the 720P component Y signal to the input
I
A terminal.
I
I
3. If the vertical lines are distorted in the side pincushion condition, adjust the
I
OHOS to 2nd vertical lines from the screen edges become straight.
I
I
4. Confirm the trapezoidal distortion. If illeagal, adjust the DH08 to correct the
I
distortion.
5. Confirm the parallelogram distortion. If illeagal, adjust the OHO? to correct
t
the distortion.
to straight
No. 515198
DT-V2000SU
:~
~
10mm
I
I
I
I
I
I
I
I
t
43