DV-NC65H (serv.man13). Adjustment, replacement and assembly of mechanical units - Sharp DVD Service Manual (repair manual). Page 19

•   Replacement (Perform in the numerical order)
1 Remove the motor as stated in 8-21 Replacement of

Drum D.D. motor.

2 Remove the drum earth brush ass’y 2.
3 Remove the upper and lower drum assembly from main

chassis 1.

4 Remove the drum FFC holder 3.

[Cares when replacing the drum]
1. Be careful so that the drum earth brush is not lost.
2. Do not touch directly the drum surface.
3. Fit gently the screwdriver to the screws.
4. Since the drum assembly is an extremely precise as-

sembly, it must be handled with utmost care.

5. Make sure that the drum surface is free from dust, dirt

and foreign substances.

6. After replacing the drum  be sure to perform the tape

running adjustment.
After that, perform also the electrical adjustment.
• Playback switching point adjustment
• X-position adjustment and check
• Standard and x-3 slow tracking adjustment

7. After replacing the drum clean the drum.

2

1

3

Lower drum bottom side

1. Assemble the reverse guide lever and pinch drive cam.
2. Mounting the sifter (on the back of the mechanism

chassis).

3. Mounting the master cam (on the back of the mecha-

nism chassis).

4. Assemble synchro gear (on the back of the mechanism

chassis).

5. Assemble the loading motor parts.

(Assemble the following parts in numerical order.)
(1)Pinch drive cam 1
(2)Reverse guide spring 2
(3)Reverse guide lever ass’y 3
(4)Open guide 4

4

2

3

1

B

A

Insert it into the 
groove of the shaft

Don't run up
on the spring

1

3

2

Synchro gear

The hole is in 
the direction of 
Synchro gear shaft.

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