Sony DNW-A22 Maintenance Manual page 251

Digital videocassette player
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Perform following steps (10) through (13) only when the specification in step (9) is not satisfied.
(10) Playback the color-bar signal portion (14:00 to 17:00) of the alignment tape CR5-1B or CR5-1B PS
again.
(11) Enter the maintenance mode, then enter A37 : TBC VR.
(12) Change the data value of item "SQ Y RZ" within +1 or _1.
(13) Perform step (9) again.
Data save [to step (18)]:
Perform the data save only when SQ Y RZ's data value of A37 : TBC VR is changed.
(14) To exit A37 : TBC VR, press the MENU button on the lower control panel.
(15) Enter A3F : NV-RAM CONTROL, then execute "SAVE ALL ADJUST DATA".
(16) Check that the message "Save Complete" is displayed on the video monitor.
(17) To exit A3F : NV-RAM CONTROL, press the MENU button once.
(18) To exit the maintenance mode, press the MENU button three times again.
(19) Stop the playback of the alignment tape CR5-1B/CR5-1B PS or eject it.
n
It is not necessary to eject the alignment tape when perform subsequent "6. TBC Y/C Delay Rough
Adjustment".
TBC-24 board (suffix-11 and 12)
RV200 RV500 RV501
RV300
RV201
TBC-24 board (suffix-13 and higher)
RV300
RV201 RV500 RV501
RV504
RV300 on TBC-24 Board
DNW-A22/A22P
RV101
RV101
6-7. TBC-24 Board Replacement
6-99

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