Command Description; Input Config (21H); On Switch Function (29H) - Sony HR Trinitron PVM-20M7MDE Interface Manual For Programmers

Command Description

Input Config (21H)

This command controls the current video signal being
displayed on the monitor.
You can select the input connector, sync signal,
underscan mode, preset white balance and VTR
connected to RGB/COMPONENT A or B connector
using this command.
The command has two parts
• First byte: Item to be changed
• 2nd and 3rd bytes: Item settings
First byte
The first byte defines the item to be changed.
The bit assignment of the first byte is as follows.
The bit corresponding to an item to be changed is set
to 1. bits and their values are always ignored.
MSB LSB
Preset white balance
AFC
Underscan
Sync signal a)
Input connector
a) The item is effective when RGB/COMPONENT A or B is
selected.
Bits which are not specified here are undefined
2nd and 3rd bytes
The 2nd and 3rd bytes are the settings for the items
defined in the first byte.
The bit assignments of bytes 2 and 3 are as follows.
Underscan mode
Sync signal
Input connector
Bits which are not specified here are undefined bits
and their values are always ignored.
The values are specified as follows.
Input connector
LINE A = 000
LINE B = 001
RGB/COMPONENT A = 010
RGB/COMPONENT B = 011
6
Preset white balance
AFC
Sync signal
EXT SYNC = 0
SYNC ON G/Y = 1
Underscan mode
Normal scan = 00
Underscan = 01
Preset white balance
6500K = 00
5600K = 01
USER 1 = 10
USER 2 = 11
AFC time constant
FAST = 0
SLOW = 1

On Switch Function (29H)

This command toggles a monitor function to the on
state.
The function to be toggled on is determined by the
byte data sent after the command code 29H.
The following table shows the functions that can be
specified and what action is taken.
Function Byte data
REMOTE 30H
DEGAUSS 31H
TALLY a) 35H
POWER SAVING 37H
(30 MIN) b)
a) The tally control connection on the RS-232C connector
takes precedence over this On Switch Function (29H)
command. However, the settings toggled by this
command are written to the monitor's nonvolatile RAM.
b) To reduce the power consumption to approx. 25% 10
minutes after sensing the absence of a sync signal, use
the on-screen menu function.
For details, refer to the instruction manual supplied with
the monitor.
Action taken
REMOTE ON
DEGAUSS ON
TALLY ON
POWER SAVING
(30 MIN) ON