Samsung Electronics
5-3
5-2
Reference Frequency Adjustment
5-3
Tilt Balance Adjustment
5-4
Tracking Balance Adjustment
5-5 LD Focus Balance Adjustment
TP1(4fsc)
GND
IN
GND
1 .Turn power on and set the unit STOP mode.
2 .Adjust VCTC1 so that frequency counter reads
14.31818MHz
¡
10Hz.
3 .Use 1:1 damping probe.
TP1(4fsc): pin2 of VIC2
1. Insert STLD -
¥
, STLD -
¥–
LD Disc and press PLAY button.
2 .Set the vertical bar pattern at the STILL mode.
3 .Adjust SVR1 so that no cross talk noise.
1. Insert STLD-
¥
, STLD-
¥–
LD Disc and press PLAY button.
2 .Set 1200 frame at the STILL mode.
3 .Adjust SVR2 so that the center of waveform at TB locates at 0V.
1. Insert STLD-
¥
, STLD-
¥–
LD disc and press PLAY button.
2. Adjust SVR5 so that the waveform at TP2(RFV) is at the
maximum.
Main PCB
Counter
CROSS TALK
0V
0V
Alignment and Adjustment
Содержание DV7720KV
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Страница 153: ...Samsung Electronics 9 3 PCB Diagram 9 3 Video cd 9 4 1 Top view 9 4 2 Bottom view ...
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Страница 158: ...Samsung Electronics 9 8 PCB Diagram 9 7 Deck 9 8 Deck ...
Страница 159: ...Samsung Electronics 10 1 10 Wiring Diagram Fig 10 1 Wiring Diagram DV7720KV DV4720V ...
Страница 160: ...Samsung Electronics 10 2 Wiring Diagrams Fig 10 2 Wiring Diagram DV7700KV DV4700V ...
Страница 161: ...Samsung Electronics 11 1 Schematic Diagrams 11 Schematic Diagram 11 1 Front ...
Страница 162: ...Samsung Electronics 11 2 Schematic Diagrams 11 2 Main 1 4 Servo Section ...
Страница 163: ...Samsung Electronics 11 3 Schematic Diagrams 11 3 Main 2 4 LD Video Section ...
Страница 164: ...Samsung Electronics 11 4 Schematic Diagrams 11 4 Main 3 4 Audio Section ...
Страница 165: ...Samsung Electronics 11 5 Schematic Diagrams 11 5 Main 4 4 Syscon Section ...
Страница 166: ...Schematic Diagrams 11 Ð 6 Samsung Electronics 11 6 Video CD ...
Страница 167: ...Samsung Electronics 11 7 Schematic Diagrams 11 8 Power DV 7620KV DV 7622KV ...