Sony DNW-A100 Maintenance Manual page 177

5. Component Video Input Phase Adjustment
Refer to 4-1 page for the operation method of the maintenance mode when adjusting.
(1) Connect as connection 3 or 2.
(2) Select "Y INPUT PHASE" of A22: AD VR (LOOP) of the maintenance mode.
(3) Magnify the horizontal axis on the screen of the waveform monitor, then display 2T pulse.
(4) Adjust that 1st signal and signal after looping overlap.
ANALOG COMPONENT Y OUT
Before adjustment
1st signal
t
(5) Set the waveform monitor to BOWTIE mode.
(6) Select "Y/B-Y INPUT DELAY".
(7) Measure the cross point of Y and B-Y, then adjust "Y/B-Y INPUT DELAY" that the deviation
between the dip point and the center marker satisfies the specification.
(8) Select "Y/R-Y INPUT DELAY".
(9) Measure the cross point of Y and R-Y, then adjust "Y/R-Y INPUT DELAY" that the deviation
between the dip point and the center marker satisfies the specification.
Specification : A = 0 ±10 ns
(10)After completing the adjustment, push the MENU button once so as to exit A22: AD VR (LOOP).
(11)Select A2F: NV-RAM CONTROL and save the adjusted data in NV-RAM (execute "SAVE ALL
ADJUST DATA").
(12)Check that the message "Save Complete" is displayed on the video monitor screen.
(13)Push the MENU button once so as to exit A2F: NV-RAM CONTROL.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
After adjustment
Looped signal
8
Center markers
Y/B-Y Y/R-Y
A B
Specification : B = 0 ±10 ns
4-3. AD-105 Board (BKNW-104)
t < 20 ns
4-23