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
Summary of Contents for DV7720KV
Page 21: ...Samsung Electronics 5 2 5 1 Adjustment Point Location Alignment and Adjustment ...
Page 150: ...Samsung Electronics 8 1 8 Block Diagram ...
Page 151: ...Samsung Electronics 9 1 9 PCB Diagram 9 1 Front Top DV7720KV ...
Page 152: ...Samsung Electronics 9 2 PCB Diagram 9 2 Front Top DV4720KV ...
Page 153: ...Samsung Electronics 9 3 PCB Diagram 9 3 Video cd 9 4 1 Top view 9 4 2 Bottom view ...
Page 154: ...Samsung Electronics 9 4 PCB Diagram 9 3 Main ...
Page 155: ...Samsung Electronics 9 5 PCB Diagram ...
Page 156: ...Samsung Electronics 9 6 PCB Diagram 9 5 Power ...
Page 157: ...Samsung Electronics 9 7 PCB Diagram 9 6 Deck ...
Page 158: ...Samsung Electronics 9 8 PCB Diagram 9 7 Deck 9 8 Deck ...
Page 159: ...Samsung Electronics 10 1 10 Wiring Diagram Fig 10 1 Wiring Diagram DV7720KV DV4720V ...
Page 160: ...Samsung Electronics 10 2 Wiring Diagrams Fig 10 2 Wiring Diagram DV7700KV DV4700V ...
Page 161: ...Samsung Electronics 11 1 Schematic Diagrams 11 Schematic Diagram 11 1 Front ...
Page 162: ...Samsung Electronics 11 2 Schematic Diagrams 11 2 Main 1 4 Servo Section ...
Page 163: ...Samsung Electronics 11 3 Schematic Diagrams 11 3 Main 2 4 LD Video Section ...
Page 164: ...Samsung Electronics 11 4 Schematic Diagrams 11 4 Main 3 4 Audio Section ...
Page 165: ...Samsung Electronics 11 5 Schematic Diagrams 11 5 Main 4 4 Syscon Section ...
Page 166: ...Schematic Diagrams 11 Ð 6 Samsung Electronics 11 6 Video CD ...
Page 167: ...Samsung Electronics 11 7 Schematic Diagrams 11 8 Power DV 7620KV DV 7622KV ...