48
6. Refer to paragraph VII., F. Troubleshooting and
Repair to realign the radio.
F. Fastener Torque Chart
Table 17 lists the various fasteners by part number
and description, followed by the torque values and the
location where used. Torque all fasteners to the recom-
mended value when assembling the radio.
IX. TEST FREQUENCY MENU
The test mode is part of the diagnostics built into the
radio and is entered through the front panel program-
ming sequence. (See FRONT PANEL PRO-
GRAMMING AND ADJUSTMENTS in this manual, and
specifically, paragraph XVI. for password entry.)
After the password is successfully entered, the radio
enters a test mode where basic radio and signalling
measurements are made at three separate frequencies
across the band. The first six characters of the display
show the six least-significant digits of the selected
receive or transmit frequency, and the last two charac-
ters indicate the type of signalling or modulation
selected. For example, the first receive frequency upon
entry to the test mode is 935.0125 MHz and the sig-
nalling is carrier squelch. The display shows
"350125CS”. When transmitting, the display will change
to the transmit frequency. The three test frequencies
are:
The signalling types are shown in Table 18.
In test mode, press Volume to adjust volume. How-
ever, the volume display in test mode is in 256
Procedure > Reference Deviation Power Set & Compensation Compensation Signalling Memory
Oscillator Adjustment Current Limit Adjustment Calibration Deviation Module
ITEM Tuning Adjustment Initialize
RF BOARD First Third N/A Second N/A N/A N/A
REFERENCE Only N/A N/A N/A N/A N/A N/A
OSCILLATOR
VCO BOARD N/A Second N/A N/A First N/A N/A
COMMAND BOARD Second Fifth Third N/A Fourth Sixth First
CONTROL HEAD N/A N/A N/A N/A N/A N/A N/A
BOARD
PA BOARD N/A N/A Only N/A N/A N/A N/A
MEMORY BOARD N/A N/A N/A N/A N/A N/A Only
Table 16. Alignment Procedures
Part Number Description Repair Torque (in.-lbs.) Where used
N/A 1/4–40 hex nut 10-12 Control head power switch (Earlier models only)
N/A 7/16 hex nut 6-8 Mini-UHF antenna connector
03-00007164 Screw, machine 6-32 4-6 PA board power tap (earlier models)
03-80114M02 Screw, machine M5X10 6-8 Radio mounting
03-10911A11 Screw, machine M3X8 6-8 PA boards device attachment
03-10911A12 Screw, machine 6-8 Pass device
03-10943J15 Screw, tapping M3.5X8 6-8 All PC board attachment (except for control head
and remote dash board); back housing to chassis
(earlier models)
03-80102P01 Screw, tapping M3.5X10 6-8 Mid power PA cover and top and bottom radio covers
03-10945A11 Screw, plastite M3X16 6-8 Control head and remote dash board attachment
03-10945A14 Screw, plastite M3X8 6-8 Remote control cable cover
03-80043L01 Screw, tapping M3X10 6-8 External power connector, accessory clip
03-80077M01 Screw, hex M3X18 6-8 Control head mounting; remote front housing mounting
03-80077M02 Screw, hex M4X16 10-12 Low power heatsink mounting
03-80077M03 Screw, hex M4X25 10-12 Mid power heatsink mounting
03-80077M04 Screw, hex M3X22 6-8 Remote cable mounting
03-80114M01 Screw, machine M3.5x44 6-8 Top and bottom cover (earlier models only)
03-84244C06 Wing screw M5X10 6-8 Radio mounting
Table 17. Minimum RF Performance Tests for Board Replacement
Test Receive Transmit Transmit
Frequency Frequency Frequency Power Level
First 935.0125 MHz 896.0125 MHz High (Rated)
Second 938.0000 MHz 901.9875 MHz High (Rated)
Third 940.9625 MHz 940.9875 MHz High (Rated)
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