Mechanism Description - Pioneer AVX-P7700WES Service Manual

AVX-P7700W

7.3 MECHANISM DESCRIPTION

- Hardware Description
Drive Motor
Eject (position) motor
Angle raising (angle) motor
Sensor
Angle detection rotary encoder
Eject detection rotary encoder
Eject end detection switch (At detecting time : L)
Angle 0 Detection switch (At detecting time : L)
- Operation Description
1. For the operation, two motors for forward/backward drive and for angle control are used.
2. The photo interrupter detects pulses and counts them in order to detect respective operation states and operating
positions.
3. At the time of starting after resetting, the storing state proceeds to the ejecting operation again and to the starting
state.
4. Angles are adjusted with the angle adjustment key
5. When the OPEN key is pressed again (or when ACC is set to OFF (when the automatic open/close setting is ON), the
storing operation starts.
- Ejecting Operation
1. Press the OPEN key or when the ACC is set to ON,
the position motor will start operating in the high-
speed mode.
2. When the longitudinal position sensor switch (LIFT
SW) is set from H to L, the position motor will stop
and the angle motor will start operating at high
speed at the same time.
3. When the angle encoder pulse reaches 12-waves, the
angle motor will stop. (Brake mode) When the previ-
ous angle has been stored, the angle motor operates
up to the angle.
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- Electrical Conditions
Sensor Signals
Encoder Pulses
DEGPUL : Angle pulse sensor
IOPUL : Eject pulse sensor
Sensor Signals
LIFT SW : Eject end sensor (At detecting time : L)
DEG 0 SW : Angle 0 sensor (At detecting time : L)
Control Signals
MTRPW : Motor power control (at ON time : H)
MTR1 : Angle motor control signal (At driving time :H)
MTR2 : Eject motor control signal (At driving time : H)
MTRS : Motor speed control (At high speed time : L,
At low speed time : H)
MTRSEL : Motor turning direction control (At forward
rotation time : *, At reverse rotation time : *)
Motor terminal voltage
High-speed mode : VMH=7.0V
Low-speed mode : VML=6.2V
12-waves or mem-
ory position