This knowledge base serves as a resource to troubleshoot any equipment problems and as a source for technical information on our products. If you are ever in additional need of information or technical support, do not hesitate to contact our technical services department at 1-800-869-5632 ext. 120.
           RC-8 Matrix Switcher FAQ's
           AVM Switcher FAQ's
           VR-2 Series FAQ's
           VR-4 Series FAQ's
           VS & AS Series FAQ's
           AC Series FAQ's
           SI-2 FAQ's
           VI & VA Series FAQ's
           Matrix Keypad FAQ's
RC-8 Series
I cannot get a response from my matrix switcher when trying to control it via RS-232 using terminal emulator software.
First, be sure that you are using a ""Null Modem"" (crossover) cable and that all RS-232 cables are firmly attached to your computer and matrix switcher. The use of USB to serial adapters is not reccomended. Once you are sure that your cables are properly attached, send the status command, ""MX00S"" (with the ""Append CR"" box checked if using CBAV's terminal emulator program) to see if you get a response. If you still have no response, change the COM port settings in your terminal emulator software. If you were previously using COM port #1, change to a different port and re-send the status command to see if you get a response. If you go through all COM ports and receive no response with the status command, then there may be a problem with the serial port on your computer or with the serial port on the matrix switcher. To narrow down the possibilities, try using your terminal emulator software to communicate with another RS-232 device. If you are able to determine that the serial port on your computer is working properly, please contact CBAV technical support at 1-800-869- 5632 to obtain further technical assistance or an RMA number for the repair of the unit.
 
I'm sending multiple RS-232 commands to my CBAV Matrix Switcher from an external control system, but the Matrix Switcher is not recognizing and/or responding to all of the commands I am sending.
Many external control systems will send RS-232 commands too quickly for the Matrix Switcher to respond appropriately when in their default mode. When possible, insert a delay of at least 0.3 seconds between commands to ensure that the Matrix Switcher can process all commands. If you have the option of selecting what baud rate your control system will send RS-232 commands at, set the baud rate at 9600 for best results when communicating with a CBAV Matrix Switcher.
 
I'm having problems teaching IR commands to my learning remote.
First, ensure that you are using a high quality IR emitter/flasher that is firmly plugged into the IR port on the back of your Matrix Switcher. Second, ensure that your computer is firmly connected to the Matrix Switcher's RS-232 port using a ""Null Modem"" (or crossover) cable. Next, make sure you are using the IR teach commands located on pages 23-34 in the RC-8 Series Matrix Installation Manual. Then, ensure that your learning remote is in learn mode before executing the teaching of the IR command from the terminal emulator software and that the IR emitter/flasher is in direct proximity to the IR receiver on your learning remote (0-4mm). If all of these steps are followed and your learning remote is not confirming that it has learned a command from the matrix, or if the command learned is not causing the desired result on the Matrix, then repeat the procedure after eliminating any ambient light from the room (i.e. drawing blinds to eliminate sunlight from the room or turning off any unneccessary lights in the room), as most ambient light can add extra IR rays which can mingle with the code being sent to your learning remote, causing the command to alter. If you are still experiencing problems after following these steps, contact CBAV technical support at 1-800-869-5632 for additional troubleshooting advice.
 
I am getting no response from my CBAV Matrix Switcher when I try to program presets.
The "preset" feature mentioned in pages 21-23 of the installation manual is an optional feature that must be activated at the factory before the unit is shipped. If you intend on using the preset feature, please notify CBAV when placing your order so that this feature can be activated before the unit ships to you. If you have already received your CBAV Matrix Switcher, you may send it back to our factory to have this feature activated at no additional charge to you (not including freight).
 
I'm not getting any signal from one or more of my audio outputs.
First, ensure that your audio connections are secure. Then, check that the amplifier that the problematic audio output is connected to is turned on. Then, check to see that an audio source is being routed to the output in question either by sending a status command (MX00S) from your terminal emulator program (if you have the matrix connected to a computer), or by manually sending an input to that output using the front panel of the device. If you are still not receiving any audio signal from the output after you have verified all connections, call CBAV technical support at 1-800-869-5632 for additional troubleshooting assistance.
 
I'm not getting any signal from one or more of my video outputs.
First, ensure that your video connections are secure and that your video display is turned on. Then, check to see that a video source is being routed to the output in question either by sending a status command (MX00S) from your terminal emulator program (if you have the matrix connected to a computer), or by manually sending an input to that output using the front panel of the device.
 
I'm not getting any signal from one or more of my audio and/or video inputs.
First, ensure that your input connections are secure and that your video/audio source is turned on. Then, check to see if you can route your incoming signal to any of the outputs on the matrix. This can be checked by sending a ""A/V input to all outputs"" command from your terminal emulator program if you have the matrix connected to a computer (this command can be located on page 16 of the installation manual) or by manually switching the input to multiple outputs using the front panel. If you are unable to send a signal from that input to any output, the unit may be malfunctioning. If this is the case, call CBAV technical support at 1-800-869-5632 for additional troubleshooting advice. If the unit is determined to be defective by CBAV staff, the unit may be sent to our factory for repair if it is still under warranty.
 
AV-M Series
My AVM Switcher seems to be stuck in manual mode and I need it to switch automatically.
CBAV's AVM Series Switchers are configured to be in automatic or manual mode at the factory. If a request is not made for automatic mode at the time when your order is placed, then the unit will ship in manual switching mode, by default. If you still need automatic mode enabled, this can be handled by simply sending the unit to our factory where we can usually complete this modification the same day your unit arrives.
 
I'm having problems teaching IR commands to my learning remote.
First, ensure that you are using a high quality IR emitter/flasher that is firmly plugged into the IR port on the back of your Matrix Switcher. Second, ensure that your computer is firmly connected to the Matrix Switcher's RS-232 port using a ""Null Modem"" (or crossover) cable. Next, make sure you are using the IR teach commands located on pages 2-4 in the RC-8-AVM Series Switcher Installation Manual. Then, ensure that your learning remote is in learn mode before executing the teaching of the IR command from the terminal emulator software and that the IR emitter/flasher is in direct proximity to the IR receiver on your learning remote (0-4mm). If all of these steps are followed and your learning remote is not confirming that it has learned a command from the matrix, or if the command learned is not causing the desired result on the Matrix, then repeat the procedure after eliminating any ambient light from the room (i.e. drawing blinds to eliminate sunlight from the room or turning off any unneccessary lights in the room), as most ambient light can add extra IR rays which can mingle with the code being sent to your learning remote, causing the command to alter. If you are still experiencing problems after following these steps, contact CBAV technical support at 1-800-869-5632 for additional troubleshooting advice.
 
VR-2 Series
 
VR-4 Series
 
VS & AS Series
I'm having problems getting the 12V trigger to activate when I have an audio or video source running through the device.
The AS and VS series sensors use a mechanical relay which can be heard 'clicking' when activated. If you hear this clicking, then the device is being triggered and a 12v signal should be sent from the 12v. After ensuring that your device is powered by a 12v power transformer. You can test this by using a multimeter on the 12v trigger outputs. If you do not hear a 'click' after the device is receiving a audio signal (with a AS-B), then adjust the sensitivity knob on the device until you do hear a click. This will indicate that the audio signal being received by the VS-B is now within the sensitivity threshold needed to trigger the relay.
 
The 12v trigger on my AS or VS series sensor is being activated, but I'm not getting any feed through audio or video signal.
The device is most likely malfunctioning. It is of no consequence which rca jack your input or output is connected to, so switching your input and output will likely yield no result. If your unit is still under warranty, it can be sent to our factory for repair. In this case, please call 1-800-869-5632 for a RMA number. If the unit is not covered under warranty, you may be able to work around this problem by connecting a high quality rca splitter to your source cable and sending one of the two ends to the AS or VS series sensor and the other end directly to your display/amplifier. This will still enable to trigger on the sensor, and give you a working audio or video signal with minimal signal loss.
 
After the video signal is removed from my VS-A or VS-B sensor, it takes several seconds for the 12v trigger or contact closure to release.
The VS series sensors are equipped with a knob to adjust the delay between the time that signal is removed and the time that the trigger is released. The range for this delay is 10-30 seconds, so with the delay knob turned all the way counterclockwise, there will always be a minimum delay of 10 seconds. There should be no delay between the time when a video signal is detected and the time when the 12v trigger or contact closure is activated.