Theory of Operation: Power-Up
32 6881086C22-B
Power-Up The ON/OFF power button located on the ASTRO Spectra/Spectra Plus 
control head is disabled before shipment. Therefore, the station is immediately 
operational when its power cord is plugged into a live AC outlet. To enable the 
ON/OFF power button on the control head, refer to the information in “DIP 
Switch and Jumper Settings” on page 8 of this manual. Please note that the 
ON/OFF power button on the control head controls the power to the control 
head only. For W9 model Consolettes (Digital Remote Control), no control 
head is present and the station will become immediately operational when its 
power cord is plugged into a live AC outlet.
Once the station is powered, the Power On
 LED should light up, and the station 
should be ready to receive or transmit.
Receive Since there can be various configurations of the Consolette depending upon 
the user's requirements, no detailed receive operating instructions will be given 
in this section. However, detailed operating instructions can be found in the 
ASTRO Spectra/Spectra Plus radio user’s guide. For information regarding 
remote control deskset operation, refer to the applicable instruction manual.
Transmit Since there can be various configurations of the Consolette depending upon 
the user's requirements, no detailed transmit operating instructions will be 
given in this section. However, detailed operating instructions can be found in 
the ASTRO Spectra/Spectra Plus radio user’s guide. For information regarding 
the operation of the digital remote deskset, refer to the applicable instruction 
manual.
NOTE: Each Consolette is shipped with the Emergency (Emer) 
button disabled. Use the current version of the ASTRO CPS 
to enable the Emergency button, if desired.
Power-Up Self-Check 
Errors
Each time the radio is turned on, the MCU and DSP perform some internal 
diagnostics. These diagnostics consist of checking the programmable devices 
such as the FLASH ROMs, internal and external EEPROMs, SRAM devices, 
and ADSIC configuration bus checksum. At the end of the power-up self-check 
routines, if an error exists, the appropriate error code is shown on the display. 
Self-test errors are classified as either “fatal” or “non-fatal.” Fatal errors will 
inhibit user operation; non-fatal errors will not. For non-display radios, the error 
codes may be read using the Customer Programming Software (CPS) from the 
universal connector at the rear of the ASTRO Spectra or Spectra Plus 
Transceiver.
Do not connect anything to Accessory Connector 1 
other than the supported ACIM connection. 
Damage could occur to the Consolette and 
unsupported external devices.