ASTRO XTS 2500/XTS 2500I Model III 25 
General Radio Operation
Radio On and Off
Turn the Radio On
2 Snap the larger end of the 
adapter into place in the 
shroud indent, below the 
antenna port.
Turn the On/Off/Volume 
Control knob clockwise.
• If the power-up test is 
successful, you will briefly see 
Self Test and then the 
home display.
• If the power-up test is 
unsuccessful, you will see 
ERROR XX/YY. (XX/YY is an 
alphanumeric code.) Turn off 
the radio, check the battery, 
and turn the radio on again. If 
the radio continues to fail the 
power-up test, record the 
ERROR XX/YY code and 
contact a qualified service 
technician.
Self Test
ERROR XX/YY
94C06.book  Page 25  Wednesday, June 23, 2010  11:41 AM