Blanking Adjustment - Sony TRINITRON BVM-14G1A Operation And Maintenance Manual

3-5. V Blanking Adjustment
• Preparations
1. Connect the signal generator and input the monoscope
signal.
2. Increase BRIGHT until the blanking can be seen.
Note: The following adjustment menus are under the E
BOARD menu of the MAINTENANCE menu.
V BLK TOP
V BLK BOT
V BLK
• 4:3 NORMAL SCAN Mode
1. Set the SCREEN MODE to 4:3 NORM at the INPUT
CONFIGURATION menu of the SETUP menu.
2. Adjust the V BLK TOP data until the blanking at the top
of the screen just disappears outside the effective screen.
3. Set the V BLK TOP data to +30.
Write down the V BLK TOP data.
4. Adjust the V BLK BOTTOM data until the blanking at
the bottom of the screen just disappears outside the ef-
fective screen.
5. Set the V BLK BOTTOM data to –30.
Write dwon the V BLK BOTTOM data.
6. Set the V BLK data to fixed at value (128).
• 4:3 UNDER SCAN Mode
1. Set the SCREEN MODE to 4:3 UNDR at the INPUT
CONFIGURATION menu of the SETUP menu.
2. Set the V BLK TOP data to 255.
3. Set the V BLK BOTTOM data to 000.
4. Set the V BLK data to fixed at value (128).
• 16:9 NORMAL SCAN Mode
1. Set the SCREEN MODE to 16:9 NORM at the INPUT
CONFIGURATION menu of the SETUP menu.
2. Set the V BLK TOP data to 255.
3. Set the V BLK BOTTOM data to 000.
4. Set the V BLK data to fixed at value (128).
• 16:9 UNDER SCAN Mode
1. Set the SCREEN MODE to 16:9 UNDR at the INPUT
CONFIGURATION menu of the SETUP menu.
2. Set the V BLK TOP data to 255.
3. Set the V BLK BOTTOM data to 000.
4. Set the V BLK data to fixed at value (128).
Fig. 1-8
3-5