Service Manual Part 2

ALIGNMENT PROCEDURE
5-2
September 2001
Part No. 001-5100-001
3. From the Windows 95 taskbar, choose RUN and
open SETUP.EXE on drive A: (or B:). Alternatively,
use File Explorer and double click SETUP.EXE.
From the Windows 3.1 Program Manager, choose
FILE > RUN and select the SETUP.EXE file on
drive A: (or B:).
4. Follow the instructions on the screen. The program
is automatically loaded on the hard drive and start-
up shortcuts or groups are created.
Starting PCTune
From Windows 95 - Select Start in the taskbar, then
Programs > PCTune > PCTune x.x.x.
From Windows 3.1 - From the Program Manager,
open the PCTune group and then double click the
PCTune icon.
Exiting PCTune
Select FILE > EXIT or press ALT + F4.
On-Line Help
On-line help is not available at this time.
5.1.3 PRELIMINARY
1. With transceiver power turned off, connect the
female DB9 connector of the programming inter-
face cable to an unused serial port of the computer.
2. Connect the other end of the programming interface
cable to the accessory/programming jack on the side
of the transceiver.
3. Start the program as described in the preceding
section. Select Options > Set Com Port and make
sure that the correct serial port is selected (see
screen in Figure 5-2).
4. Turn transceiver power on and select Tuning >
Complete Tuning to automatically step through a
complete alignment or Partial Tuning to adjust only
certain settings or randomly select adjustments.
5. The computer then attempts to establish communi-
cation with the transceiver. A message is displayed
to indicate success or failure. From this point,
prompts are displayed for each step of the program-
ming procedure.
5.2 TRANSMIT FREQUENCY TUNING
The transmit frequency is set by transmitting on
the indicated frequency and then adjusting the refer-
ence oscillator frequency via the tuning software.
Proceed as follows:
1. Connect a 50-ohm load to the antenna jack and
monitor the transmit signal with a communication
monitor.
2. Set the communication monitor to the indicated
frequency and click OK to key the transmitter.
3. Adjust the frequency by clicking the + and – keys.
The current setting is indicated in the “Current
Value” box. When the frequency is correct, click
OK again to complete the adjustment and store the
setting.
5.3 TRANSMIT MODULATION TUNING
Transmit modulation is set by balancing the
modulation produced by 80 Hz and 3 kHz tones and
then setting modulation limiting using a 1 kHz tone.
All these tones are internally generated by the trans-
ceiver, so no external audio generator is required.
Proceed as follows:
1. Click OK with “TX Modulation” selected. Set the
communication monitor for the displayed
frequency.
2. Click OK to transmit a signal modulated with an 80
Hz tone. Enter the resulting deviation (in hertz) in
the displayed box and click OK.
3. Continue following the screen instructions to adjust
the 3 kHz tone deviation. The + and – buttons are
clicked to set the deviation to the indicated level.
The 1 kHz tone deviation is then adjusted.