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2-7. Focus Adjustment
2-7. Focus AdjustmentAdjustment Procedures
Subject :Resolution chart1. Adjustment point :1RV109/DF-58
Specification : 1RV109 fully counter-Turn
Noteclockwise, and slowly turn it
clockwise until the optimum focus
This focus adjustment, O2-8. Picture Frame Adjustment�is achieved.
and O2-9. Bright Extent Adjustment� affect each other.2. After the adjustment, confirm that the focus can be
Therefore, repeat these adjustments until all specificationsachieved at all settings of BRIGHT, CONTRAST and
are satisfied.PEAKING controls.
m
. If the picture frame adjustment is out of specifications,
Preparations
especially in horizontal size, the focus may not be achieved.
. Shoot the resolution chart so that the chart frame isIn this case, turn 1RV112/DF-58 clockwise a little
aligned with the underscanned monitor frame with the(referring to Section 2-8), and perform the focus adjust-
zoom control.ment.
. The application of too-high voltage may make the high-
voltage protection circuit activated. In this case, power
off once and turn 1RV109/DF-58 fully counterclockwise.
After that power on again to perform the adjustment.
(Viewfinder screen)
. Adjust the iris of the lens so that the output level (Y
level) at TEST OUT connector on the camera is 500 ?50
mV.
. BRIGHT control :Mechanical center
. CONTRAST control : Mechanical center
. PEAKING control : Fully counterclockwise 3
CN102
RV120
RV119
RV107
RV106
RV112
RV108
RV101
RV121
RV122
CN101RV123
RV110
RV113
RV114RV109
RV105
RV102RV118
RV111RV117
RV104
RV116
RV103
RV115
DF-58 - component side -
HDVF-20A2-5 (E) |
ACEC
SONY
