NAD 7020e - AM Alignment Procedures; AM Oscillator (OSC) Adjustment; AM Intermediate Frequency (IF) Adjustment; AM Tracking Adjustment

AM ALIGNMENTS
Unless repairs khave been done to Oscillator Section, do not adjust AM OSC coil or Trimming Capacitor. If OSC Adjustment
is needed, connect hight impedance voltmeter (preferably DMM) between P123 and ground.
A. OSC ADJUSTMENT
1. Tune unit to show 600KHz on display and adjust L102 to read 1.75V+-0.05V on DMM.
B. IF ADJUSTMENT
. For IF adjustment and Tracaking adjustment connect VTVM to loudspeaker output (or tape output), only one channel
connection needed, and connect signal generator to antenna terminals. Adjust generator for 30% modulation and
approx. !v0 uv input.
Tune both generator and receiver to approx. {1000KHz, and adjust generator frequency for maximum reading on VTVM.
Then adjust IFT2, and IFT3 for maximum reading on meter.
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C. TRACKING ADJUSTMENT
{. Tune unit and generator to show approx. 600KHz and adjust L101 to maximum reading on VTVM.
2. Tune unit and generator to show approx. {400KHz and adjust C138 (Trimming Capacitor) for maximum reading on VTVM.
3, Repeat step 1 and 2 unit no fkurhter imprivement.
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TUNER ADJUSTMENT POINTS
AM TRACKING ADJ.
It IF AM_ TRACKING ADJ.
L2 RF1
L4 RF2
LS MIX AM_OSC_ADJ.
L8 OSC
FM
DET
PRIMARY
AM
_IF
ADJ.
FM DET SECONDARY
AM LED SENS. ADJ.
FM MPX FILTER ADJ. FM AUTO SEARCH
FM MPX FILTER ADJ.
STEREO SEPARATION
SYNTHESIZER FREQ.