Appendix B Button Modes SP1200 Button Modes

Appendix B: Button Modes

Press 1 on Power Up: AGC Reset

•Press and hold the Input 1 button while powering up the SP1200.

•Release the Input 1 button and the Input 1 LED blinks.

This resets the AGC for all four inputs to the default setting (–5 dBu).

•Press the Input 1 button again and the OFF LED lights. This indicates that the AGC circuit is turned off.

•Press the Input 1 button again and the OFF LED turns off. This indicates that the AGC circuit is turned on.

•Press the OFF button to save the settings and return to normal operation.

•Press and hold the Input 2 button while powering up the SP1200.

•Release the Input 2 button. The Ambient Mic Preamp gain is indicated on the LED meter.

•Use this mode to calibrate the ambient mic (see procedure on page 20).

•Press the OFF button to return to normal operation.

•Press and hold the Input 3 button while powering up the SP1200.

•Release the Input 3 button. The lowest Paging Mic level is indicated on the LED meter.

•Use the Up/Down buttons to adjust the lowest Paging Mic level.

•Press the OFF button. The highest Paging Mic level is indicated on the LED meter.

•Use the Up/Down buttons to adjust the highest Paging Mic level (see procedure on page 20).

•Press the Input 3 button to save the settings and return to normal operation.

Press 4 on Power Up: Firmware Version

•Press and hold the Input 4 button while powering up the SP1200.

•Release the Input 4 button. The LEDs on the front panel indicate the firmware version in binary.

•The Input 1-4 LEDs indicate the digit to the left of the decimal point, and the LED meter indicates the digit to the right of the decimal point.

•For example, the following illustration indicates version 1.7.

•Press the OFF button to return to normal operation.

3 LED pairs lit

111 (in binary) = 7 (in decimal)

Version 1.7

SP1200 – 26