Pioneer CX-3168 Service Manual page 20

1
2)Camgear motor system
2.1) Detect system
A
It uses a rotary position sensor (VR2), converts a
camgear rotation angle to voltage value and captures
it by a microcomputer A/D to detect absolute position.
Detect circuit
B
C
2.2) Drive system
Controlling a cam gear motor by the control unit
enables the following function:
Open/close of shutter
Open /close of tray tab
Division of tray
Rotation operation of CRG chassis
(moving to the play position)
Release of mechanism lock
Drive of eject arm
D
E
F
20
1
2
CAMSNS
CX-3168
2
3
SWDVDD
VR21
CAMREF
GND
3
4
4