G2 Adjustment - Sony TRINITRON BVM-14G1A Operation And Maintenance Manual

• 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 vertical convergence adjustment data (V CONV
data) to the same value as the 4:3 NORMAL SCAN
mode.
3. Check the horizontal and vertical convergence, and if
there is misconvergence, adjust again.
• 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 vertical convergence adjustment data (V CONV
data) to the same value as the 4:3 NORMAL SCAN
mode.
3. Check the horizontal and vertical convergence, and if
there is misconvergence, adjust again.
• 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 vertical convergence adjustment data (V CONV
data) to the same value as the 4:3 NORMAL SCAN
mode.
3. Check the horizontal and vertical convergence, and if
there is misconvergence, adjust again.

3-8. G2 Adjustment

Note: The G2 REF Adjustment menu is under the BK
BOARD menu of the MAINTENANCE menu.
1. Input the color bar signal.
2. Connect the R, G, and B cathodes of the C board to the
probes of the oscilloscope, and check the DC voltage of
the color bar signal pedestal. (20V/Div)
3. Connect the cathode with the highest pedestal DC volt-
age to the probe of the oscilloscope.
4. Adjust the G2 REF data so that the pedestal DC voltage
becomes 97.0 ±3.0 V.
Pedestal
97.0 V
DC
0 V
Fig. 1-24
C Board –B SIDE–
Fig. 1-25
3-11