Pioneer LD-V4400 Level I User Manual page 131

LD-V4400 Control Blocks
The following control blocks are used within the LD-V4400.
1.) Communication control block
2.) Player control block
1) Communication control block
The communication control block is divided into ten units. It analyzes commands
sent via various input methods, and executes the commands.
Status display LED
The LD-V4400 player has seven LED status display indicators: POWER,
LD-ROM / BUSY, PARK, PLAY, SEARCH and KEY LOCK on the front panel.
See Section 3.1 Player Indicators for details on LED operations.
LED driver
The LED driver turns on the LED indicators.
Front Panel Buttons
The LD-V4400 player has OPEN/CLOSE, PLAY, STILL/STEP FORWARD,
STILL/STEP REVERSE, SCAN FORWARD, SCAN REVERSE, and DISPLAY
and LD-ROM On/Off buttons on the front panel. (See Section 3.1 Front
Panel Control Buttons, page 3-1. Also see Section 2.4 On-Screen Function
Switches, page 2-11, for more details on using these buttons.)
Key Decoder
When a front panel button (key) is pressed, the key decoder generates data
corresponding to the pressed button and sends it to the subcontrol manager.
Wireless Remote Control Unit
This is the remote sensor on the front panel. It converts the infrared
LaserBarcode or RCU code to an electric signal.
Wired Remote Control Unit
This is the LaserBarcode terminal on the front panel. It receives the
LaserBarcode or RCU code via the stereo pin jack.
Button/RCU Command Processor
This command processor analyzes the front panel button /RCU command
data received from the subcontrol block for execution.
RS-232C Command Processor
The RS-232C command processor analyzes RS-232C command data received
from the RS-232C buffer for execution.
Appendix F LD-V4400 Internal Player Controls
LD-V4400 Internal Player Controls
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