Press BACK button on the test panel key pad to get back to the frequency "Main" screen
tone=0 (turns off DSP 1kHz test tone)
Test Segment 40 of 60
Install VCO shield cover
No DC power in at battery contacts
Disconnect radio board from audio board
Install VCO shield assembly Part number ?
Bend tabs at 45 degrees and Solder around the VCO shield
Allow to cool for a minimum of 10 minutes
Test Segment 50 of 60
NOTE: This segment must be performed using the audio/radio board pairs that will remain paired up
Setup:
Audio board with PIC18LF6J11 µC IC running firmware
version appropriate & current for part number connected
to an untested radio board, these boards will live together
til death do they part.
Test panel key pad connected to audio board J3
Apply +3.0VDC, 500mA current limit in at battery contact
J8 (J9 is circuit common)
All voltage measurements referenced to circuit common
All demodulated carrier and carrier deviation
measurements taken with a Hewlett Packard 8901B
modulation analyzer with no 8901B filters selected. Use of
other instruments may yield different results particularly
measurements pertaining to noise and phase and
measurements where noise is a significant factor
All audio stimulus signals applied to audio input rig
All audio stimulus signals are single ended.
Carrier power for the various part numbers are as follows:
HM=100mW, HMAU & HM/E01=50mW and HM/E02
All audio measurements taken with a
≤
10Hz HPF and
80KHz LPF (use filter on audio signal analyzer, not
modulation analyzer unless otherwise specified).
This font indicates use of the
Alternate Method to manual testing. The
alternate Method uses the LectroLink
apparatus and either the LecNet2
Command Terminal Utility or the
O:\ATE\MTE\HM\HM_LectroLink_Control.exe
program. Test steps bearing the same
number indicate alternate method(s).
Connect Power Meter Head to RF Board J3(MT4 is circuit
