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Fisher 674 User Manual

Fisher 674
12 pages
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Fisher 674 Specifications

General IconGeneral
BrandFisher
Model674
CategoryStereo Receiver
LanguageEnglish

Summary

Required Test Equipment

Harmonic Distortion Check

Tuner Alignment

IF Alignment

Aligns the Intermediate Frequency circuit for optimal performance and selectivity.

Preliminary Detector Alignment

Adjusts the detector circuit for proper signal detection and waveform shape.

Front End Alignment

Aligns the initial stages of the FM tuner front end for sensitivity.

Final Detector Alignment

Performs final adjustments to the detector circuit for best overall results.

FM Output

Adjusts the final output level for the FM signal path.

Signal Strength Meter Adjustment

Signal Strength Meter Adjustment

Calibrates the front panel signal strength meter for accurate readings.

Center Channel Meter Adjustment

Adjusts the center channel meter, specifically for the 4060 model.

Muting Level Adjustment

Sets the threshold level for the FM stereo muting function.

Stereo Separation

Optimizes the separation between left and right stereo audio channels.

AM Alignment

AM IF

Aligns the Intermediate Frequency circuit for AM signals to ensure proper reception.

AM RF

Aligns the Radio Frequency stages for AM reception for optimal signal capture.

AM Output

Adjusts the output level for the AM signal path after alignment.

AM Signal Strength Meter Adjustment

Calibrates the AM signal strength meter for accurate indication.

Chassis Parts List

Tuner Parts List

Tuner Schematic

4060/674/895 Schematic

4060/674/895 Parts List

4060/674/895 Parts List (Continued)

Lamp Board (4060 Only) Parts List

Power Amplifier Schematic

4020/4025/474/495 Schematic

4020/4025/474/495 Parts List

4020/4025/474/495 Schematic (Continued)

Power Amplifier/Power Supply

4020/4025/474/495 Parts List (Continued)

Power Amplifier Parts List

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