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NAD 4225 Service Manual

NAD 4225
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4225
STEREO
TUNER
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NAD 4225 Specifications

General IconGeneral
BrandNAD
Model4225
CategoryTuner
LanguageEnglish

Summary

FM ALIGNMENTS

NECESSARY INSTRUMENTATION

List of required test equipment for performing FM alignment procedures.

TUNING VOLTAGE (OSCILLATOR)

Procedure to check and adjust the oscillator's tuning voltage.

RF ADJUSTMENT (TRACKING)

Adjusting RF tracking using oscilloscope and inductors for optimal performance.

IF ADJUSTMENT

Procedure for adjusting the Intermediate Frequency (IF) stages.

DETECTOR COARSE ADJUSTMENT

Optional coarse adjustment for the detector, used if it has been repaired.

DETECTOR ALIGNMENTS (FINAL)

Final adjustment steps for the detector circuit for accurate demodulation.

AUTOSEARCH LEVEL

Setting the level for the autoscan or autosearch function.

STEREO DECODER, MPX FILTERS

STEREO SEPARATION AND MPX FILTER ADJUSTMENT

Adjusting stereo separation and MPX filters for optimal audio output.

AM ALIGNMENTS

OSC ADJUSTMENT

Adjusting the Oscillator (OSC) coil and capacitor for AM reception.

IF ADJUSTMENT

Procedure for adjusting the Intermediate Frequency (IF) stages for AM signals.

TRACKING ADJUSTMENT

Adjusting tracking for AM reception across various frequencies.

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