KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954
RM-914
– 68 –
0 V
Cathode setting voltage:
175 V
±
2 (VDC)...25"
180 V
±
2 (VDC)...29"
White
second from the right
Black
2. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 5-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the PICTURE to minimum.
4) Select GCT (WHB 4) and BCT (WHB 5) with
[1]
and
[4]
,
and adjust the level with
[3]
and
[6]
for the best white
balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 1) and BDR (WHB 2) with
[1]
and
[4]
,
and adjust the level with
[3]
and
[6]
for the best white
balance.
7) Write into the memory by pressing
[MUTING]
then
[0]
.
3. SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Input a staircase signal of black to white from the pattern
generator.
3) BRIGHTNESS ............. 50%.
PICTURE ..................... MINIMUM
4) Select SBR (WHB7) with
[1]
and
[4]
, and adjust SBR
(WHB7) level with
[3]
and
[6]
so that the second stripe
from the right is dimlylit.
4-4. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C6 board cathode to the
oscilloscope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
5) Adjust G2 (screen) on the FBT until picture shows the
point before cut off.