JVC TK-C675BU Service Manual page 18

Measuring
No. Item instrument &
Input signals
13 SC phase • Color bar chart
adjustment (just scan)
(E Ver. only) • Oscilloscope
(H-rate, 10:1)
• Vectorscope
14 Offset data • It is not neces-
adjustment sary the infinity
adjustment lens
for this adjust-
ment.
15 R-Y low, B-Y (INDOOR)
low (indoor/ • Color bar chart
outdoor) (just scan)
adjustment •Oscilloscope
(H-rate, 10:1)
(OUTDOOR)
• Color bar chart
(just scan)
• Filter (80C+80C)
• Oscilloscope
(H-rate, 10:1)
2-9
Measuring point (
Adjustment parts (
Mode
Adjustment level (
VIDEO output
LENS IRIS
0.65Vp-p
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
VIDEO output
29h (SC phase)
Red dots should be
superimposed.
66h (2R-G offset)
67h (2B-G offset)
6Ah (Y low offset)
VIDEO output
LENS IRIS
0.65Vp-p
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
62h (B/Y indoor data)
L
63h (R/Y indoor data)
L
VIDEO output
LENS IRIS
0.46Vp-p
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
64h
(B/YL outdoor data)
65h
(R/YL outdoor data)
)
)
Adjustment procedure
)
1) Attach the infinity adjustment lens with color
bar chart to the lens.
2) Set lens iris so that white level of color bar
chart is 0.65Vp-p at VIDEO output.
3) Adjust the SC phase data so that the red dots
are superimposed on the vectorscope.
1) Close the lens iris.
2) Press Enter key. The adjustment is preformed
automatically.
1) Attach the infinity adjustment lens with color
bar chart to the lens.
2) Set lens iris so that white level of color bar
chart is 0.65Vp-p at VIDEO output.
3) Press Enter key. The adjustment is preformed
automatically.
1) Put the filters (80C+80C) to the lens.
2) Set lens iris so that white level of color bar
chart is 0.46Vp-p at VIDEO output.
3) Press Enter key. The adjustment is preformed
automatically.