Specifications

5-18 888-2500-001 5/2/2013
WARNING: Disconnect primary power prior to servicing.
DAX-1/DAX-3
Section 5 Maintenance and Alignments
•DAX-3: 3kW
•DAX-5: 5kW
•DAX-6: 6kW
STEP 15 On page 5 of the VT100 screens hit the “M” key
STEP 16 Use the up/down arrow keys on the keyboard to adjust the B+ DAC until
the DC voltage reading on the meter of the B+ supply is as close to
300.0V as possible
STEP 17 Press the “Enter” key to store
STEP 18 Press the “2” key, type the number “300” and press the “Enter” key
STEP 19 With the transmitter still operating, set the transmitter to a power level
range that has been pre-set in the “level” menu to the following:
•DAX-1: 400W
•DAX-3: 1300W
•DAX-5: 2500W
•DAX-6: 2500W
NOTE:
(Verify that the number in the lower right-hand corner of the transmitter GUI dis-
play reads the number listed above).
STEP 20 While on page 5 of the VT100 screens, press the “N” key and the VT100
screen will display a “WAIT” message
STEP 21 If the “WAIT” message becomes “PASS” press the “Enter” key. If the
“WAIT” message becomes a “FAIL” message hit the “N” key again.
NOTE:
If this low-tap calibration fails more than once, there is a problem with the trans-
mitter and a call to Harris Broadcast service may be required.
5.6.3 LVPS Replacement
The following section outlines the steps necessary to replace either of the industrial
power supplies: +12Vdc or +48Vdc.
STEP 1 Turn off CB1
STEP 2 Disconnect primary power to the transmitter
STEP 3 Note the yellow-wire numbers as they are currently attached to the
power supply terminals