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General| Power output | 30 watts per channel into 8Ω (stereo) |
|---|---|
| Total harmonic distortion | 0.3% |
| Input sensitivity | 2.5mV (MM), 150mV (line) |
| Frequency response | 20Hz to 20kHz |
| Signal to noise ratio | 75dB (MM) |
| Speaker load impedance | 8Ω to 16Ω |
Guidelines for preventing hazards during servicing of audio equipment.
Explanations for product feature codes, cabinet styles, and miscellaneous options.
Definitions for tape unit features including motor type, auto-stop, and tape control.
Detailed comparison of product features for MC7031, MC7041, and MC7051 models.
Explanation of basic circuitry and new components used in the models.
Guide to identifying components on circuit boards using schematic symbols and numbers.
Understanding the AGC voltage curve and its relation to RF input signal levels.
Factory alignment and conditions requiring realignment for AM/FM/Multiplex.
Procedures for aligning AM IF stages using sweep and alternate methods.
Steps for aligning FM IF stages using a signal generator and oscilloscope.
Guidelines for aligning FM Multiplex circuitry with composite multiplex signals.
Methods to diagnose issues in FM Multiplex alignment by checking waveforms.
Steps for removing cabinet top, bottom cover for chassis access.
Procedure for removing front panel, control circuit board, and accessing output transistors.
Explanation of FM RF stage using FET and NPN transistors in the tuner assembly.
Theory of output stages and the automatic speaker protection circuit.
Guide to connecting speakers using push-type wire connectors and proper polarity.
Block diagrams for IC901, IC951, IC201, and IC301 integrated circuits.
Block diagrams for IC101 and IC201 circuits in the MC7051 model.
Detailed wiring and component views for various MC7031 sections.
Overall schematic diagram for the MC7031 model.
Overall schematic diagram for the MC7041 model.
Overall schematic diagram for the MC7051 model.
Overall chassis layout diagram for the MC7051 model, showing component placement.
Exploded views illustrating assembly for MC7031, MC7041, and MC7051 models.
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