4x1 HDTV Switcher
Operation Manual
CHDD-41AR
Pins definition of modem cable
Command Code
"I" + "1"
PORT 1 ON
"I" + "2"
PORT 2 ON
"I" + "3"
PORT 3 ON
"I" + "4"
"P" + "1"
"P" + "0"
POWER ON
POWER OFF
Comment
PORT 4 ON
CHDD-41AR RS-232 Remote Control Protocol
* The connection between CHDD-41AR and remote controller with RS-232 modem cable.
* RS-232 transmission format:
Baud Rate : 9600 bps
Data Bit : 8 Bits
Parity: None
Stop Bit: 1 bit
* Command :
CHDD-41AR
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
T xD
R x D
NC
GND
NC
NC
NC
NC
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
R xD
T x D
NC
GND
NC
NC
NC
NC
Remote Controller
Connection and Installation:
1. Works as a 4-in 1-out HD switcher for sharing one HDTV display.
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
Y/V1
DC 5V
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
INPUT 1
INPUT 2
INPUT 3
INPUT 4
OUTPUT
RS232
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
COAXIAL
L
R
Y/V1
DC 5V
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
Y/V1
Pb/V2
Pr/V3
INPUT 1
INPUT 2
INPUT 3
INPUT 4
OUTPUT
RS232
Plasma/LCD TV
or any monitor
with YUV input
YUV input 4
DVD 4
YUV input 3
DVD 3
YUV input 2
DVD 2
YUV input 1
DVD 1
Composite
input 4
DVD 4
Composite
input 3
DVD 3
Composite
input 2
DVD 2
Composite
input 1
DVD 1
2. Works as a 4-in 1-out composite switcher for sharing one SDTV display.
CRT or any monitor
with RCA input
Trouble Shooting Guide:
When there is no picture, please check:
1. Whether all connectors connect well or not ? Or
2. Whether the connecting cable is damaged ?
4