JVC 340 SC, 330, 370 SC service manual To set G2 1. Cut off R and B and view G

Chapter 3---Service Adjustments

8.Adjust Menu Position using the Grey Scale and the Timing Setup Menu. (Refer to the Menu Position section).

To set G2:

1.Cut off R and B and view G.

2.Select the Pluge test pattern.

3.Adjust green G2 so that the small, black rectangle in the center of the larger, black rectangle is just barely visible (Figure 3-8).

4.Select the Dot Pattern test pattern and toggle the HIDE key. While toggling, verify there is no change in the background raster brightness. (The Dot Pattern will turn on and off as the HIDE key is toggled but the background brightness should not change while toggling.) If the background brightness changes as the HIDE key is toggled, G2 is set too high and the procedure should be repeated. When readjusting G2, look for a slightly less visible small, black rectangle in the larger, black rectangle.

5.Select the Pluge test pattern again.

6.Cut off G and view R.

NOTE: When setting the G2 levels for green, red, and blue, they should be set as closely as possible so that all 3 colors are at approximately the same level.

7.7. Repeat steps 3 and 4 for the red G2 level.

8.8. Cut off R and view B.

9.9. Repeat Steps 3 and 4 for the blue G2 level.

NOTE: G-2 adjustments affect Color Balance, Shading, and Proportional Offset. After completing the G-2 setting, verify and readjust these adjustments.

Figure 3-9The Pluge test pattern. Use the two small rectangles in the center to set G2 and Sensitivity Offset.

Model 330, 340SC, 370SC Service Manual 3-17