Rs-232 Remote Control Connections; Specifications - Maxent MX-42VM7 User Manual

CONNECTING THE DISPLAY

RS-232 Remote Control Connections

RS-232 Serial Terminal Overview
This display is equipped with an RS-232 serial terminal for using the display with computer controls. The
RS-232 serial terminal conforms to the RS-232C interface specification. The computer will require software
application (such as programming language software) which allows the computer to send and receive control
data that can support the communications parameter listed below.
Communications Parameters
These parameters are required to setup communica-
tions with the display.
Specification
Sync Method
Baud Rate
Parity
Character Length
Stop Bit
Pin Layout for RS-232 Terminal
The RS-232C terminal pin layout are as follows:
Pin 1 Received Line Signal Detector (Data Carrier
Detect)
Pin 2 Received Data (RXD)
Pin 3 Transmit Data (TXD)
Pin 4 Data Terminal Ready (DTR)
Pin 5 Signal Ground
Pin 6 Data Set Ready (DSR)
Pin 7 Request To Send (RTS)
Pin 8 Clear To Send (CTS)
Pin 9 Ring Indicator
Command Parameters
These remote control commands are available to
send to the display using RS-232.
Item C m d Data
Read 80 81-A7
Volume 81 01-64H
Power On/Off 83 00-01
Brightness 85 01-64H
Contrast 86 01-64H
V-Size 87 01-64H
V-Position 88 01-64H
H-Size 89 01-64H
H-Position 8A 01-64H
Color 8E 01-64H
Tint 8F 01-64H
Sharpness 90 01-64H
Input Select 91 00-07
Recall 92 00
Mute On/Off 95 00-01
PanelKey Lock96 00-01
14
RS-232C
Synchronous
9600 bps
None
8 Bits
1 Bit
Details
Reads the displays current
settings for command 81
thru A7
Set between 01-64H
00=Off 01=On
00=TV, 01=AV1, 02=AV2,
03=AV3, 04=Component 1,
05=Component 2, 06=RGB,
07=DVI
00=Initiate recall
00=Off 01=On
00=Off 01=On
Basic Format for Command Parameters
In order to transmit data from the computer to the
display, the data must be sent in 1-byte-hex format.
The command code (see table below) must first be
sent to the display, followed by the desired value
setting in hexadecimal format. The following is an
example of a sequence to change the displays input
to RGB:
Step 1: Send 1-byte for command 91 (input select) to
the display in hex format 0x91
Step 2: Send 1-byte for the value of the RGB input.
In this example, send 0x06.
Step 3: The display will then respond back to the PC
with a 1-byte value to confirm the setting.
Notes:
! If there are no data to be sent, then the param-
eter signal does not need to be sent.
! If multiple commands are transmitted, make sure
to wait for the response for the first command to
come from the display before sending the next
command. The following are response command
signals:
RESPONSE: 80 70 = MODE ERROR
80 71 = ITEM ERROR
80 72 = FORMAT ERROR
Item C m d Data
Language 97 00-02
Color Temp 98 00-03
Bass 9A 01-64H
Treble 9B 01-64H
Balance 9C 01-64H
Woofer 9D 00-01
BBE 9E 00-01
Surround 9F 00-02
RF Input A0 00-01
Full Search A1 00
MTS A4 00-02
Zoom A5 00-05
PIP/POP A7 00-03
Details
00=English, 01=French,
02=Spanish
00=High, 01=Mid, 02=Low,
03=6500D
00=Off 01=On
00=Off 01=On
00=Off, 01=3D Stereo,
02=3D Mono
00=Air, 01=Cable
00=initiate full search
00=Stereo, 01=Mono,
02=SAP
00=16:9, 01=Panorama,
02=4:3, 03=Zoom1,
04=Zoom 2, 05=Zoom3
00=Normal, 01=PIP,
02=POP1, 03=POP2 (4:3),
04=POP3 (16:9)