A/D Adjustment (Component); A/D Adjustment (Rgb) - Sony LMD-2450W Service Manual

2-3. A/D Adjustment (COMPONENT)

1. Input the 575/50I 100% 8 color-bar COMPONENT
signal to this unit.
2. Press the input switch to accept the COMPONENT
input signal.
3. Enter the Service menu, then select SIGNAL →
SIGNAL LEVEL → AUTO ADJ. Perform the
following automatic adjustments.
. Y/G LEVEL
. PB LEVEL
. PR LEVEL
. Y OFFSET
. PB OFFSET
. PR OFFSET
4. Perform the adjustments of items 1-2 to 1-4 in table 1
shown below by repeating the above described
procedures.
However, before performing AUTO ADJ, adjust the
COMPONENT level or NTSC SETUP appropriately
according to the respective conditions described in
table 1.
COMPONENT selection input
1-1 575/50I 100% 8 color-bar signal
Y/G LEVEL
PB/B LEVEL Conditions:
PR/R LEVEL COMPONENT LEVEL No specific conditions
Y/G OFFSET NTSC SETUP No specific conditions
PB/B OFFSET
PR/R OFFSET
1-2 480/60I BETA0 100% 8 color-bar signal
Y/G LEVEL
PB/B LEVEL Conditions:
PR/R LEVEL COMPONENT LEVEL BETA 0
Y/G OFFSET NTSC SETUP No specific conditions
PB/B OFFSET
PR/R OFFSET
1-3 480/60I BETA7.5 100% 8 color-bar signal
Y/G LEVEL
PB/B LEVEL Conditions:
PR/R LEVEL COMPONENT LEVEL BETA 7.5
Y/G OFFSET NTSC SETUP No specific conditions
PB/B OFFSET
PR/R OFFSET
1-4 1080/60I 100% 8 color bar-signal
Y/G LEVEL
PB/B LEVEL Conditions:
PR/R LEVEL COMPONENT LEVEL No specific conditions
Y/G OFFSET NTSC SETUP No specific conditions
PB/B OFFSET
PR/R OFFSET
Table 1
2-2

2-4. A/D Adjustment (RGB)

1. Input the 480/60I 100% 8 color-bar RGB signal to this
unit.
2. Press the input switch to accept the RGB input signal.
3. Enter the Service menu, then select SIGNAL →
SIGNAL LEVEL → AUTO ADJ. Perform the follow-
ing automatic adjustments.
. Y LEVEL
. PB LEVEL
. PR LEVEL
. Y OFFSET
. PB OFFSET
. PR OFFSET
4. Perform the adjustment of item 1-6 in table 2 shown
below by repeating the above described procedures.
RGB selection input
1-5 480/60I RGB 100% 8 color-bar signal
Y/G LEVEL
PB/B LEVEL
PR/R LEVEL
Y/G OFFSET
PB/B OFFSET
PR/R OFFSET
1-6 1080/60I RGB 100% 8 color-bar signal
Y/G LEVEL
PB/B LEVEL
PR/R LEVEL
Y/G OFFSET
PB/B OFFSET
PR/R OFFSET
Table 2
Conditions:
No specific conditions
Conditions:
No specific conditions
LMD-2450W