Sony DNW-A100 Maintenance Manual page 121

2. Y Adjustment
1. Connect and set the oscilloscope as follows:
CH-1: TP203/DM-89(G-7), DC 500 mV/DIV
GND: E902/DM-89(G-7)
CH-2: TP4/DM-89(E-1), DC 1 V/DIV
GND: E702/DM-89(D-1)
TIME: 5 ms/DIV
TRIG: CH-2, _ slope
2. During play back the alignment tape in PLAY mode,
adjust the DC level at CH-1 on the oscilloscope.
PB portion: Flat filed signal (24:00 to 26:00) of
CR5-1B (NTSC) / CR5-1B PS (PAL)
1RV205/DM-89(G-6)
Adj. point:
Specification: A = 2.0 ± 0.2 V dc
A
3. Stop the playback of the alignment tape.
A B C
RV704 RV703
D902
ON
TP8 TP7 TP6
S901
OFF
E303
TP5
E901
TP704
TP702
TP701
RV702
TP305
RV701 TP700 TP306
TP208
RV401
RV301 RV302 RV303 RV304
RV402
S302
RV406
S301
TEST
NOR
RV407
E302
TEST NOR
RV405
TP303
TP304
TP403
TP404
TP302
TP300
E301
DM-89 Board (Side A)
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
0 V
D DM-89 E F G
OFF ON
RV504 E105
S501 TP3 TP2 TP1 RV503
A No. LOTNO, S NO,
TP4
E702
TP705
TP505
TP503 TP504
E701
TP502
TP703 E501
RV501 RV502
TP501
RV507 RV506
TP500
TP105
TP106
TP506
RV305 RV105
RV102 RV104
RV306 RV106
RV107
RV307
RV101 RV103
RV202
RV308 RV201
RV108
E104
E102
TP104
S102
TP103
TEST NOR
S101
RV211 RV212
TP102
TEST NOR
E103
TP202
TP204
RV205
TP100
E101
E902
TP203
3. C Adjustment
1. Change the connection of the oscilloscope as follows:
CH-1: TP403/DM-89(D-6)
GND: E303/DM-89(B-1)
CH-2: TP5/DM-89(D-1)
GND: E702/DM-89(D-1)
2. During play back the alignment tape in PLAY mode,
adjust the DC level at CH-1 on the oscilloscope.
PB portion: Flat filed signal (24:00 to 26:00) of
CR5-1B (NTSC) / CR5-1B PS (PAL)
1RV405/DM-89(C-6)
Adj. point:
Specification: B = 2.0 ± 0.2 V dc
B
3. Stop the playback of the alignment tape.
n
It is not necessary to eject the alignment tape when
perform subsequent "3-8-16. Search Picture Adjust-
ment".
1
2
3
4
5
6
7
3-8. Analog Betacam PB System Alignment
3-8-15. RF Envelope Adjustment
0 V
3-85