DHC-NXM4D, HCD-NXM4D (serv.man2) - Sony Audio Service Manual (repair manual). Page 6

6

2

 screw

     (+PTPWH 2.6 

×

 8)

4

 screw

     (+PTPWH 2.6 

×

 8)

6

 screw

     (+PTPWH 2.6 

×

 8)

3

 pulley (BU)

5

 gear (BU2)

7

 gear (BU1)

1

 belt (sub tray)

gear (BU1)

cam (BU)

Before re-assembling, slide the cam (BU) in the direction of 
the arrow. 
Assemble the gear (BU1) in such a manner that the groove
of the cam (BU) is aligned with the rib of the gear (BU1).

rib

groove