Yamaha IMX644 Owner's Manual - Page 18

Appendix Troubleshooting Symptom The power won't turn on. No sound. Sound levels don't change when the level knobs are operated. Pressing a MEMORY button results in no change to the settings. Memory cannot be recalled via the GPI interface. The IMX644 cannot be operated from an external controller (AMX/Crestron). The IMX644 cannot be operated from the IMX644 Manager application. Possible Cause The power cable is not properly connected. The audio cables are not properly connected. Connected devices are not turned ON. Wrong matrix settings. Level settings too low. The LOCK function may be engaged. The LOCK function may be engaged. No settings have been saved in memory. The appropriate memory-tobutton assignment has not been made. A memory is not assigned to the GPI input. The IMX644 is operating in IMX644 Manager mode. The IMX644 is operating in normal mode. Solution After connecting the power cable to the connector on the rear panel of the IMX644, plug the cable into an appropriate AC outlet. Check all audio connections. Check to make sure that the power to all connected devices is turned ON. Check the matrix indicators to make sure that the input and output assignments are correct. If the matrix settings are not appropriate use the IMX644 Manager application to set them as required. Also check the matrix send levels. Make sure that the panel level controls are set appropriately. If this doesn't produce the desired output check the settings via the IMX644 manager application. Disengage the main LOCK function via the IMX644 panel (page 8), or disengage LOCK for a specific knob via the IMX644 Manager application. Disengage the main LOCK function via the IMX644 panel (page 8). Make the required settings via the IMX644 Manager application, and then save them to the appropriate memory. Use the IMX644 Manager application to assign the desired memory to the button. Use the IMX644 Manager application to assign the desired memory to the GPI Input Terminal. Turn the IMX644 power OFF, and then after waiting for at least six seconds turn the power ON again (without holding the MEMORY [D] button) to start the IMX644 in "normal" mode. Turn the IMX644 power OFF, and then after waiting for at least six seconds turn the power ON again while holding the MEMORY [D] button to start the IMX644 in "IMX644 Manager" mode. Memory Initialization The following procedure initializes the IMX644 memory. CAUTION • All data stored in memory will be erased when the memory is initialized. Perform the following procedure with caution. 1 Turn the IMX644 power OFF. 2 Turn the power back ON while simultaneously holding the MEM- ORY [A] and [D] buttons. Initialization will take about one second. When initialization is complete the odd-numbered matrix input channel indicators will light. 3 To recall the initial memory data press a MEMORY button for longer than two seconds. NOTE • Initialization erases the password required to connect the IMX644 Manager application to the IMX644 unit. After initialization it will be necessary to set a new password to bring the IMX644 online. 18 IMX644 Owner's Manual