Sony Betacam SX DNW-A100 Maintenance Manual page 350

6-8. TBC-24 Board Replacement
7. Impact Error Offset Adjustment
Measuring equipment: Video monitor
(1) Playback the color-bar signal portion (26:00 to 28:00) of the alignment tape CR5-1B or CR5-1B PS.
(DNW-A100/A50/A45: CR5-1B, DNW-A100P/A50P/A45P: CR5-1B PS)
(2) Adjust the following RVs until disappear the drop-out parts (Y DO and C DO) of displaying color-
bar on the video monitor.
Adjustment points: Y DO: 1RV401/TBC-24(F-6)
C DO:
Specification:
C DO portion
Y DO portion
(3) Eject the alignment tape CR5-1B/CR5-1B PS.
n
It is not necessary to eject the alignment tape when perform subsequent "8. TBC Y/C Delay Adjust-
ment".
A B C
TP201 E200
RV500
TP203
RV200
RV501
LOT No. S No.
A No.
RV201
RV202
TP202
E501
TP500
TP601
RV503
TP602
TP604
TP606
RV502
TP603
LV601
RV601
RV604
TP605
TP303
TBC-24 Board (Side A) (Suffix-11 and -12)
6-112
1RV601/TBC-24(D-6)
See the figure below.
Before adjustment
D E F G
TBC-24
RV300
RV101
TP101 TP103
RV102
E100
TP102
RV400 RV402
TP300
TP401
TP400
E302
RV303
TP403
TP404
TP402
TP301
TP406
RV404
LV401
RV401
TP302 TP405 E301
E502
After adjustment
A B
RV500
RV201
RV501
TP203
1 A No.
2
3
E501
TP500
TP601
4
5
RV503
TP602
TP604
RV502
TP603
LV601
6
7
TBC-24 Board (Side A) (Suffix-13 and higher)
C D E F
TBC-24
RV504 TP201
RV300 E200
RV101
TP101
LOT No. S No.
E100
RV400 RV402
TP300
TP401
E302
RV303
TP606
TP404
TP402
RV601
LV401
RV401
TP405
E502
TP605
TP303
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
G
TP103
1
2
3
4
5
TP403
TP406
6
E301
7