3-23
[Video Contrast Adjustment]
Condition:
Input signal 10 step signal (White: 100 IRE level)
Measurement point YC-148 (H) board CN1003 pin 8
Measuring equipment Oscilloscope
Adjustment page F
Adjustment address 96
Specification value 0.7 ± 0.02 Vp-p
Connection:
Adjustment Procedure:
(1) Connect a oscilloscope to the CN1003 pin 8 on the YC-148
(H) board.
(2) Set (or confirm) data: 01 to page 0, address 01. (Cancel F
page protect)
(3) On page F, address: 96, change data with the PLAY and STOP
buttons and press the PAUSE button to write data so that the
B level of waveform on the oscilloscope satisfies the speci-
fication value.
Adjustment and Connection Location: YC-148 (H) board
(see page 3-30)
[Color Adjustment]
Condition:
Input signal Color bar signal
Measurement point YC-148 (H) board CN1003 pin 8
Measuring equipment Oscilloscope
Adjustment page F
Adjustment address 98
Specification value 0 ± 0.02 Vp-p
Connection:
Adjustment Procedure:
(1) Connect a oscilloscope to the CN1003 pin 8 on the YC-148
(H) board.
(2) Set (or confirm) data: 01 to page 0, address 01. (Cancel F
page protect)
(3) On page F, address: 98, change data with the PLAY and STOP
buttons and press the PAUSE button to write data so that the
C level of waveform on the oscilloscope satisfies the speci-
fication value.
Adjustment and Connection Location: YC-148 (H) board
(see page 3-30)
[Hue Adjustment]
Condition:
Input signal Color bar signal
Measurement point YC-148 (H) board CN1003 pin 8
Measuring equipment Oscilloscope
Adjustment page F
Adjustment address 97
Specification value 0 ± 0.02 Vp-p
Connection:
Adjustment Procedure:
(1) Connect a oscilloscope to the CN1003 pin 8 on the YC-148
(H) board.
(2) Set (or confirm) data: 01 to page 0, address 01. (Cancel F
page protect)
(3) On page F, address: 97, change data with the PLAY and STOP
buttons and press the PAUSE button to write data so that the
D level of waveform on the oscilloscope satisfies the speci-
fication value.
Adjustment and Connection Location: YC-148 (H) board
(see page 3-30)
+
–
Oscilloscope
(DC range)
CN1003 pin
8
(VIDEO G)
CN1003 pin
1
(GND)
YC-148 (H) Board
B
+
–
Oscilloscope
(DC range)
CN1003 pin
8
(VIDEO G)
CN1003 pin
1
(GND)
YC-148 (H) Board
C
+
–
Oscilloscope
(DC range)
CN1003 pin
8
(VIDEO G)
CN1003 pin
1
(GND)
YC-148 (H) Board
D
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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