Checking Horizontal Synchronization; Convergence - DEC VR297 User Manual

28
Adjustments
TOP and BOTTOM PIN AMP Adjustment ma-0946-89

2.4.5 Checking Horizontal Synchronization

To adjust the horizontal frequency:
1. Display the circle-crosshatch screen.
2. Disconnect the green input cable with the BNC connector from the
rear of the monitor. The screen should roll vertically and horizontally.
3. Turn the H-FREQUENCY (RV207) control on the D board to minimize
the horizontal roll.
4. Reconnect the green input cable at the rear of the monitor.

2.4.6 Convergence

The following figure shows the location of adjustment controls for the L
board.
L board ma-0950-89