Mitsubishi Electric HITACHI VS-50111 Troubleshooting Manual page 16

V20 Chassis Technical Training
and Troubleshooting Guide
1. Use the VIDEO button to select an item.
2. Use the ADJUST buttons to change data.
Note: When Item "1 HVOL" is selected the screen goes black except for the data display.
This occurs since a black screen is required when making the HV Regulation adjustment.
E. COARSE CONV (Press 5)
There are four Sub Functions in the Coarse mode, COARSE GREEN, COARSE RED, COARSE BLUE
and DF.
• COARSE GREEN .... used to make Coarse Raster Geometry Adjustments.
• COARSE RED ... used to make Coarse Red Convergence Adjustments.
• COARSE BLUE ... used to make Coarse Blue Convergence Adjustments.
• DF ... used to preset data values controlling the Dynamic Beam Focus circuit drive signal.
1. Use AUDIO button to select a Sub Function
2. Use the VIDEO button to select an Adjustment Item.
3. Use the ADJUST buttons to change data.
F. FINE CONV (Press 4)
Sub Functions
This mode is used to perform Fine Raster Correction, and Fine Red and Blue Convergence Adjustments.
There are three Sub Adjustment Functions, selected with the AUDIO button:
• FINE GREEN .... a Green Crosshatch is displayed, for Fine Raster Corrections.
• FINE RED .... a White Crosshatch is displayed, for Fine Red Convergence Adjustments.
• FINE BLUE .... a White Crosshatch is displayed, for Fine Blue Convergence Adjustments.
Cursor
In the Fine mode a Cursor is added to the Crosshatch. The ENTER button toggles the Cursor between
two modes:
• MOVE (blinking Cursor) .... use the ADJUST buttons to select any of 64 points on the Crosshatch.
• ADJUST (Non blinking Cursor) .... the ADJUST buttons adjust the active color at the current
Cursor position, horizontally or vertically.
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