Pioneer CX-692 서비스 매뉴얼 - 페이지 27

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- Disc Detection

DSP switch(S851) is turned ON and OFF by the DSP

switch lever driven by the cam gear which controls the

tray extending motion. The photo sensor is timed with

this ON and OFF status, detecting the existence and

non-existence of the disc as well as the type of disc.

- Tray Extension and Retraction Detection

A)Clamp

When the clamp motion of the clamp lever is

complete the jointed arm moves and the protruding

section of the arm pushes the TRP switch(S852) ON

via the leaf spring.

B)Tray retraction

When the tray retracts the switch arm, which operates

on the same fulcrum as the tray extending arm,

moves and the TRP switch(S852) is pushed ON by the

protruding section of the arm via the plate spring.

Cam gear

TRP switch (S852)

Plate spring

Photo sensor

DSP switch (S851)

Fig. 34

CX-692