Sony VPH-D50HTU Installation Manual page 57

!¶ PLUGE (for adjusting
BIAS only)
!• Stair step (for adjusting
GAIN only)
The patterns 1 to !™ appear in numerical order when pressing the
PATTERN key in service adjustment mode.
The patterns !£ to @º appear in specified adjustment modes only.
The outmost bold line of each pattern in the illustration stands for the edge
of the screen.
!ª 5 IRE
(for adjusting BIAS only)
@º 100 IRE
(for adjusting GAIN and
BIAS only)
57
Before adjustment (GB)