User manual

HDMI Selection Switcher 4x1
PTN Electronics Limited 7 www.PTN-electronics.com
Rear View:
9. Communication Protocol and Command Codes
Communication protocol: RS232 Controlling Protocol
Baud rate: 9600 Date bit: 8 Stop bit: 1 Parity bit: none
Command
Function Description
Feedback Code
1B1.
Switching audio/video from input 1 to output
AV: 1 -> 1
2B1.
Switching audio/video from input 2 to output
AV: 2 -> 1
3B1.
Switching audio/video from input 3 to output
AV: 3 -> 1
4B1.
Switching audio/video from input 4 to output
AV: 4 -> 1
0B0.
Mute the output
MUTE
0B1.
UnMute the output
UNMUTE
600%
Checking the working status
AV:1 -> 1
601%
Switching the input automatically
Auto Swicth
602%
Switching the input manually
Manual Switch
10. Troubleshooting & Maintenance
1) When images of terminal unit output with ghost, such as the projector output with
ghost. Generally this is not a unit faulty, this may be caused by an incorrect setting
on the projector or a bad quality of cable. Please check the projector’s setting or try
another high quality connection cable.
2) When there is a color losing or no video signal output, please check the input and
output end connections of the cables.
3) When the remote controller doesn’t works:
 The battery has no power, please change a new one.
 The controller was broken, please repair it.
4) When there is no output images:
 Check if there is any signal at the input.
 Check if there is any signal at the output.
We can check these by using an oscilloscope or a multimeter. If there is no signal
input/output, maybe the input/output cables broken or the connectors loosen,
please change for another cable.
 If not the problem mentioned above, probably there is something broken inside
the unit, please send it to the dealer for repairing.
5) If the POWER indicator doesn’t work or no respond to any operation, please make