5-88
A
2H
Pedestal
(0 IRE)
90 IRE
5.
Contrast Adjustment (PD-125 Board)
Mode
E-E
Signal
Arbitrary
Measurement Point
Pin
5
of CN505 on FR-157 board
(VG)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
8C
Specified Value
A = 2.00 ± 0.05 Vp-p
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 60, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 3, address: 22, set data: 01, and press the PAUSE
button.
4) Select page: E, address: 8C, change the data and adjust the
voltage (A) between the pedestal and 90IRE to the specified
value.
5) Press the PAUSE button of the adjustment remote commander.
6) Select page: 3, address: 22, set data: 00, and press the PAUSE
button.
7) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
8) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-53
A
2H
Pedestal
(0 IRE)
GAMMA 1
limiter level
4.
Gamma 1 Adjustment (PD-125 Board)
Mode
E-E
Signal
Arbitrary
Measurement Point
Pin
5
of CN505 on FR-157 board
(VG)
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
83
Specified Value
A = 0.92 ± 0.05 Vp-p
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 60, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 3, address: 22, set data: 02, and press the PAUSE
button.
4) Select page: 9, address: 0E, set data: 40, and press the PAUSE
button.
5) Select page: E, address: 83, change the data and adjust the
voltage (A) between the pedestal and GAMMA 1 limiter level
to the specified value.
6) Press the PAUSE button of the adjustment remote commander.
7) Select page: 9, address: 0E, set data: 00, and press the PAUSE
button.
8) Select page: 3, address: 22, set data: 00, and press the PAUSE
button.
9) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
10) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-52