DVH-335UB/XNRC
72
1
2
3
4
1
2
3
4
C
D
F
A
B
E
Disc used:TDV-582
Measurement reference: AGND3
Measurement point: RF
Expansion
Oscilloscope
RF
AGND3
-
SKEW adjustment
When one of the following replacements has taken place, SKEW adjustment for the pick up will be required.
(1) Replacement of the pick up unit
(2) Replacement of the spindle motor
(3) Replacement of the carriage chassis
(4) Replacement of the main shaft of the pick up unit
Measurement equipment and tools/jigs: Oscilloscope
Driver for SKEW adjustment -> Driver
Bond for fixing the SKEW -> GEM1033
Bond for resonance -> 1530 (1530 : produced by THREE BOND)
Bond for locking the screw -> 1401M (1401M : produced by THREE BOND)
Connection drawing
DVD core unit
Symptom in case the adjustment is not adequate: Worsening of the error rate 10
(Normally
10
or
less.)
Large
RF
jitter
RF
waveform
distortion
Tracking
drawing/Unstable
servo
* Caution: Do not look into the laser light during adjustment.
-3
-4
RF
AGND3
Содержание DVH-335UB/XNRC
Страница 17: ...DVH 335UB XNRC 17 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 45: ...DVH 335UB XNRC 45 5 6 7 8 5 6 7 8 C D F A B E Side A COMPOSITE GNDV Fig 11 3 VIDEO signal check point ...
Страница 48: ...DVH 335UB XNRC 48 1 2 3 4 1 2 3 4 C D F A B E Side A DGND1 IC1501 50pin Fig 13 3 48 MHz check point ...
Страница 50: ...DVH 335UB XNRC 50 1 2 3 4 1 2 3 4 C D F A B E Side A SCLOCK SDATA D CP_ RESET D DGND2 ...
Страница 56: ...DVH 335UB XNRC 56 1 2 3 4 1 2 3 4 C D F A B E 5 5 CONNECTOR FUNCTION DESCRIPTION ...
Страница 66: ...DVH 335UB XNRC 66 1 2 3 4 1 2 3 4 C D F A B E 1 Have a specified part Handling OK Handling NG How to have it ...
Страница 82: ...DVH 335UB XNRC 82 1 2 3 4 1 2 3 4 C D F A B E 9 2 EXTERIOR 1 B ...
Страница 84: ...DVH 335UB XNRC 84 1 2 3 4 1 2 3 4 C D F A B E 9 3 EXTERIOR 2 A 601 A B B A ID ...
Страница 88: ...DVH 335UB XNRC 88 1 2 3 4 1 2 3 4 C D F A B E A GEM1045 B GEM1038 C GEM1024 A C C A A C C C C C A A ...
Страница 89: ...DVH 335UB XNRC 89 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 107: ...DVH 335UB XNRC 107 5 6 7 8 5 6 7 8 C D F A B E ...