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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-A22: CR5-1B, DNW-A22P: 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: 1RV601/TBC-24(D-6)
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)
DNW-A22/A22P
See the next figure below.
Before adjustment
D
E
F
G
TBC-24
RV300
TP101
RV101
TP103
RV102
E100
TP102
RV400
RV402
TP300
TP401
TP400
E302
RV303
TP403
TP404
TP402
TP301
TP406
RV404
LV401
RV401
E301
TP302
TP405
E502
After adjustment
A
B
RV500
RV201
RV501
TP203
1
A No.
2
3
E501
TP500
TP601
4
5
RV503
TP604
RV502
TP603
LV601
6
7
TBC-24 Board (Side A) (Suffix-13 and higher)
6-7. TBC-24 Board Replacement
C
D
E
F
TBC-24
TP201
RV504
RV300
E200
RV101
TP101
LOT No.
S No.
E100
RV400
RV402
TP300
TP401
E302
RV303
TP602
TP606
TP404
TP402
RV601
LV401
RV401
TP405
E502
TP605
TP303
G
TP103
1
2
3
4
5
TP403
TP406
6
E301
7
6-103
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