Mongoose
/ Bulldawg
Documentation Project
CBTricks.com
Receiver Alignment
Test Equipment
1.��� RE Signal Generator
2.��� V.T.V.M.
3.��� 8 ohm dummy load (10
watts)
4.��� Distortion Meter
5.��� Power Supply
6.��� Oscilloscope
Alignment Procedure
1.��� Connect Pin 4 of Mic
jack to ground.
2.��� Connect RF signal generator
output terminal to antenna jack, set modulation 1KHz at 30%.
3.��� Connect power cord
to power supply.
4.��� Connect dummy load
to EXT speaker jack.
5.��� Connect V.T.V.M., oscilloscope
and distortion meter to dummy load.
6.��� Set signal generator
and radio to Ch19.
7.��� Turn squelch frilly
counterclockwise and the volume fully clockwise.
8.��� Signal input must be
kept as low as possible, to avoid overloading and clipping.
9.��� Adjust T101, T102,
T213, T103, T104, & T105 for max. on V.T.V.M..
10.�� Reduce output from
signal generator so that audio output remains about 500mV-2V.
11.�� Repeat steps 9 &
10 to obtain max. output.
12.�� Set output of signal
generator to 1uV.
13.�� Check that V.T.V.M.
indication is above 4V and S+N/N is below 10dB.
14.�� Check that audio output
is over 4V on channels.
15.�� Turn squelch volume
fully clockwise, and adjust RV3 so that audio output appears.
16.�� Adjust VR1 so that
meter indicator is set at S-9 position.
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.