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7. Replacing the pickup
Since the pickup optical axis and turntable inclination of DVD are adjusted with higher accuracy than th of CD/MD, make
a replacement as a mechanism service chassis ass'y specified in Parts Guide.
8. Replacing the Sled Motor
(1) At the rear side of chassis remove the two M1.7 screws A , and remove the motor angle B .
(2) Remove the thrust holding screw C (for easier removing wipe off the thread lock).
(3) Remove the two motor fitting screws M1.4 D , and replace the motor E . Motor is replaced in the state while the
worm F is kept press-fitted to the output shaft.
Note: When installing the motor, take care so that the worm does not damage the ANG B hole.
(4) Screw in the thurust holding screw C , adjust the worm front end clearance to 0 to 0.1 mm, and apply screw lock.
Thurust holding screw
9. Replacing the Spindle Motor
Since the pickup optical axis and turntable inclination of DVD are adjusted with higher accuracy than th of CD/MD, make
a replacement as a mechanism service chassis ass'y (refer to Parts Guide).
Apply screw-lock.
C
M1.7 screw
A
Motor Angle
B
M1.4 screw
Mecha chassis Ass'y
Caution: Do not attempt to adjust
Sled motor E
Worm F
D
Mecha chassis Ass'y
6-4
DV-550U
any control on the pickup.
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