134
1
2
3
4
1
2
3
4
F
E
D
C
B
A
AVH-P6500DVD/UC
A
B
C
Symptoms in case of poor adjustment: Error efficiency deteriorated: 10-3 (Optimum value: 10-4 or lower)
High jitter of the RF signal
RF waveform deformed
Unstable operation in tracking closing and servo control
Caution: Avoid exposing your eyes to laser beams for a long time.
Preparation for adjustment: Clean both ends of the shafts.
Use brand new skew screws supplied with the service kit CXX1639.
Procedures:
1. Place the DVD mechanism module upside down.
2. After replacing the pickup (by referring to the procedures of “ Removing the Pickup.” ),
roughly adjust the three skew screws through visual check so that the pickup is mounted in parallel
to the CRG chassis around the inner and outer tracks.
3. Connect an oscilloscope as shown in the connecting diagram.
4. Turn on the power of the product. Load the test disc (GGV1018).
5. In the front-end test mode, set the disc type to DVD layer 1. Move the pickup toward the inner tracks.
6. Turn on the laser diodes.
7. With the focus servo closed, complete all automatic adjustments. Close the tracking servo, and
then complete all automatic adjustments.
8. Observing the RF waveform on the oscilloscope, slightly turn the skew adj. screw C to maximize the RF level.
Next, move the pickup toward the outer tracks. Slightly turn the skew adj. screw B to maximize the RF level.
Turn the skew adj. screws A and B in the same direction keeping their rotating angles the same until the RF level
becomes the maximum.
Lastly, move the pickup toward the inner tracks. Turn the skew adj. screw C so that the RF level
becomes the maximum.
Repeat the step 8 three times.
9. Turn off the power in the test mode. After confirming that the disc has stopped, eject the disc.
10. Apply Screw lock(GYL 1001) to the skew adj. screws and the shafts.
Screw lock(GYL 1001)
Shaft
Skew adj. screw
Skew adj. screw
Prevent applied Screw lock
from extending beyond this position.
Prevent applied Screw lock
from extending beyond this position.
Summary of Contents for AVH-P6500DVD
Page 6: ...6 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 1 SPECIFICATIONS ...
Page 7: ...7 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 10: ...10 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 2 2 EXTERIOR 1 ...
Page 13: ...13 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 14: ...14 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 2 3 EXTERIOR 2 ...
Page 16: ...16 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 2 4 EXTERIOR 3 ...
Page 18: ...18 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 2 5 DVD MECHANISM MODULE ...
Page 41: ...41 D b 1 2 D b 1 2 D a 1 2 2 stream D 2 2 D 2 2 0 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 45: ...45 A a D b 2 2 D a 2 2 D b 2 2 D a 2 2 3 4 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 55: ...55 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 60: ...60 I a I b I b I MONITOR PCB V V V V 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 62: ...62 L UC RC RD EW EW 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC 3 13 GRILLE PCB ...
Page 65: ...65 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 70: ...70 A A MOTHER PCB IC Q 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 71: ...71 A SIDE B M CN5901 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 73: ...73 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 76: ...76 D D DVD CORE UNIT MS3 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 77: ...77 D SIDE B IC Q E 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 79: ...79 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 81: ...81 G G TUNER UNIT SIDE B 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 83: ...83 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 85: ...85 I SIDE A J CN4301 SUB DISPLAY A CN803 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 86: ...86 I I MONITOR PCB 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 87: ...87 I SIDE B 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 93: ...93 N MAIN UNIT SIDE B 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC N ...
Page 138: ...138 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 140: ...140 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 142: ...142 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 144: ...144 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 146: ...146 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 148: ...148 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC System Computer I F MPEG stream ...
Page 205: ...205 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC 8 OPERATIONS UC model ...
Page 206: ...206 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 207: ...207 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...
Page 208: ...208 1 2 3 4 1 2 3 4 F E D C B A AVH P6500DVD UC ...
Page 209: ...209 5 6 7 8 F E D C B A 5 6 7 8 AVH P6500DVD UC ...