Electrical Adjustments - Sony DNW-A22 Maintenance Manual

Digital videocassette player
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6-7-2. Electrical Adjustments

Adjustment Items
No. Item
0
Preparation
1
Composite output level adjustment
METAL Y
METAL C
OXIDE Y
OXIDE C
2
A/D clamp DC level adjustment (Note 1)
C
Y
3
VCO lock-in range adjustment
Y
C
4
FAST VCO tracking adjustment
Gain
Offset
5
PB video phase adjustment
6
TBC Y/C delay rough adjustment
METAL
7
Impact error offset adjustment
Y
C
8
TBC Y/C delay adjustment
METAL
OXIDE
Note 1: Their RV102 and RV202 are not equipped on the TBC-24 board of board number suffixes 13
and higher.
Note 2: Their RV404 and RV604 are not equipped on the TBC-24 board of board number suffixes 13
and higher.
Note 3: This RV400 is not equipped on the TBC-24 board of board number suffixes 14 and higher.
Note 4: This RV402 is not equipped on the TBC-24 board of board number suffixes 14 and higher for
DNW-A22P.
Note 5: If the specification is not satisfied by RV300, change the data of A37: TBC VR: SQ Y RZ.
Note 6: If the specification is not satisfied by RV500, change the data of A37: TBC VR: SQ C RZ.
Note 7: This RV504 is not equipped on the TBC-24 board of board number suffixes 11 and 12.
DNW-A22/A22P
Adjustment point
1RV101/TBC-24
1RV201/TBC-24
1RV504/DM-89
1RV704/DM-89 (DNW-A22P only)
1RV202/TBC-24
1RV102/TBC-24
1RV404/TBC-24 (Note 2)
1LV401/TBC-24
1RV604/TBC-24 (Note 2)
1LV601/TBC-24
1RV400/TBC-24 (Note 3)
1RV402/TBC-24 (Note 4)
1RV300/TBC-24
A37: TBC VR: SQ Y RZ (Note 5)
1RV502/TBC-24
1RV503/TBC-24
1RV500/TBC-24
A37: TBC VR: SQ Y RZ (Note 6)
1RV504/TBC-24 (Note 7)
1RV401/TBC-24
1RV601/TBC-24
1RV500/TBC-24
1RV504/TBC-24 (Note 7)
1RV501/TBC-24
Remarks
VIDEO OUTPUT COMPOSITE 1
TP202/TBC-24
TP102/TBC-24
RV404/TBC-24
TP403/TBC-24
RV604/TBC-24
TP603/TBC-24
RV400/TBC-24
Video monitor
VIDEO OUTPUT COMPOSITE 1
VIDEO OUTPUT COMPOSITE 1
Video monitor
VIDEO OUTPUT COMPOSITE 1
VIDEO OUTPUT COMPOSITE 1
6-7. TBC-24 Board Replacement
6-89

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