Samsung Electronics
6-11
6-11 Tracking is not working normally
4V
0V
0V
500mV
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
• Focus is normal
• Tracking is not working normally
Check for signal
at pin E,F of SCW1
Check for signal
at pin 1 of SIC2
Check for signal
at pin 91 of SIC6
Check for signal
at pin 8 of SIC6
Check for signal
at pin 8, 9 of SIC4
Check for pick-up,
connector
wire and SR67
Check for connector
wire and pick-up
Check for SIC and
power source : ±5
Check for SEMI VR (SVR7)
and PCB pattern
Replace parts of EQ circuit
for phase compensation
response of tracking
Replace SIC4
Troubleshooting
Содержание DV7720KV
Страница 21: ...Samsung Electronics 5 2 5 1 Adjustment Point Location Alignment and Adjustment ...
Страница 150: ...Samsung Electronics 8 1 8 Block Diagram ...
Страница 151: ...Samsung Electronics 9 1 9 PCB Diagram 9 1 Front Top DV7720KV ...
Страница 152: ...Samsung Electronics 9 2 PCB Diagram 9 2 Front Top DV4720KV ...
Страница 153: ...Samsung Electronics 9 3 PCB Diagram 9 3 Video cd 9 4 1 Top view 9 4 2 Bottom view ...
Страница 154: ...Samsung Electronics 9 4 PCB Diagram 9 3 Main ...
Страница 155: ...Samsung Electronics 9 5 PCB Diagram ...
Страница 156: ...Samsung Electronics 9 6 PCB Diagram 9 5 Power ...
Страница 157: ...Samsung Electronics 9 7 PCB Diagram 9 6 Deck ...
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 ...