3-11
Part 3: Adjustment
2.4 Contrast Adjustment
Measuring equipment ............Oscilloscope
Input signal ...........................16-step gray scale
Enter the service mode.
Adjust part A of the signal waveform at each test point to the minimum with the
/- button.
1. Enter computer input mode and input a 16-step gray scale signal.
Item No.
Test point
Adjustment
4
TP-R1
Computer red contrast
5
TP-G1
Computer green contrast
6
TP-B1
Computer blue contrast
2 Enter AV input mode and input a 16-step gray scale signal.
Item No.
Test point
Adjustment
4
TP-R1
AV red contrast
5
TP-G1
AV green contrast
6
TP-B1
AV blue contrast
3. Enter component input mode and input a 16-step gray scale signal (480i signal).
Item No.
Test point
Adjustment
4
TP-R1
Component red contrast
5
TP-G1
Component green contrast
6
TP-B1
Component blue contrast
Fig. 3-4
A
Summary of Contents for D78-5351
Page 8: ...Part 1 General Information ...
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Page 21: ...Part 2 Repair Information ...
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Page 34: ...Part 3 Adjustment ...
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Page 57: ...Part 4 Parts Catalog ...
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Page 73: ...Part 5 Electrical Diagrams ...