Service Manual Part 1
"8/
"8"8/ )#9*&*A69
Connect an ignition noise simulator and an RF signal generator to the receiver
antenna input.
Set the signal generator modulation for ±3kHz (±2.4kHz) [±1.5kHz] deviation at
1kHz AF.
Set the signal generator output level to give a 20dB sinad.
Listen to the receiver output and check the operation of the noise blanker by tem-
porarily short circuiting R135 on the RF PCB to ground, thus disabling the noise
blanker.
The noise blanker should give a marked reduction in noise over a wide range of
noise input amplitudes.