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(3) OXIDE Y/C confirmation
Playback the 75% color-bar signal portion (0:00 to 3:00) of the alignment tape CR5-2A or CR5-2A
PS, and perform the check of each composite signal level. If the specification is not satisfied, perform
the adjustment of the composite output level.
(DNW-A22: CR5-2A, DNW-A22P: CR5-2A PS)
n
For DNW-A22, perform the check (adjustment) for Y signal only.
Equipment setting
WAVEFORM mode
VECTOR mode
WAVEFORM mode
A
(4) Eject the alignment tape CR5-2A/CR5-2A PS.
DNW-A22/A22P
Specifications
DNW-A22: A = 714 ± 7 mV (100 ± 1 IRE)
DNW-A22P: A = 700 ± 7 mV
Inside the corresponding frames
(DP: ± 2.5d, DG: ± 2.5%)
WAVEFORM mode
A
DNW-A22
DNW-A22P
Adjustment point
1RV504/DM-89(F-1)
1RV704/DM-89(B-1)
DNW-A22P only
VECTOR mode
R
M
G
Y
L
B
G
C
Y
A
B
C
D
RV703
OFF
D902
ON
E303
TP8
TP7
TP6
TP5
S501
S901
OFF
RV704
E901
TP705
TP704
E701
TP703
TP702
RV501
TP701
RV507
RV702
TP305
TP700
TP306
RV701
TP208
RV401
RV301
RV302
RV303
RV304
RV402
S302
RV406
S301
TEST
NOR
RV407
E302
TEST
NOR
TP303
TP304
RV405
TP403
TP404
TP302
TP300
E301
DM-89 Board (Side A)
6-3. DM-89 Board Replacement
DM-89
E
F
G
ON
RV503
E105
TP3
TP2
TP1
TP4
A No.
LOTNO,
S NO,
1
E702
RV504
2
TP505
TP503
TP504
3
TP502
E501
RV502
TP501
RV506
TP500
TP105
TP106
4
TP506
RV305
RV105
RV102
RV104
RV306
RV106
RV107
RV307
RV101
RV103
RV202
5
RV308
RV201
RV108
E104
E102
TP104
S102
TP103
TEST
NOR
S101
RV211
RV212
TP102
NOR
6
TEST
E103
TP202
RV205
TP204
TP100
TP203
E101
E902
7
6-67
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