Appendix C: Troubleshooting - FrontRow CM900 Installer's Manual

Appendix C:
I can't remember what IP address I changed the CM900 to, and now I can't communicate with it
1. Disconnect the serial cable (if connected) from the RS232 connector
2. Build a shorting plug by connecting the TX1 and RX1 lines of connector
3. Power down the CM900, then insert the shorting plug.
4. Power up the CM900 and remove the shorting plug within 3 to 4 seconds
5. If the reset was not successful try again with a shorter or longer time duration before pulling out the plug
6. A hardware reset changes the IP address back to the default (192.168.1.103)
7. In addition, the web-access password will be reset back to 'calypso' (login name remains admin), though the state of
password protection will not change (active or in-active as before). No other settings are changed.
I can't remember what web access password I set for the CM900, and now I can't log onto it
• Reset the CM900 to its default web access password ('calypso') by following steps 1 - 5 above
I've connected a new CM900 to my computer for configuration but can't communicate with it
• If you are using a Windows
enter: ARP -D IPADDRESS (e.g., ARP -D 192.168.1.104)
Also check the LED indicators
• Status LED should be flashing once per second
• Error LED should not be lit
I've connected the serial cable from the CM900 to the projector and I've verified that baud rate and other settings are
correct, but I still can't control the projector.
• Try switching the TX and RX wires. In a 9-pin connector the standard is to use pins 2 and 3 for TX and RX, but there is no
standard as to which is which. Most manufacturers use pin 2 for TX and pin 3 for RX, but over 10% use the reverse.
I've connected everything but I can't get any sound from the amp
• Check Master Volume settings by going to the command line and enter #AUD1[ ];
• Response 0 0
• Check the PA Fault LED – this should not be lit. If it is lit – and the device is not in mute mode – then, PA may be damaged;
see the LED Status information below.
Troubleshooting
computer, clear the ARP cache. From the command prompt,
®
00
Volume Level value 0 - 100 where 100 is max
Mute state: 0 = Not Muted, 1 = Muted
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