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Pioneer SX-700L Service Manual

Pioneer SX-700L
30 pages
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Pioneer SX-700L Specifications

General IconGeneral
TypeStereo Receiver
Tuning rangeFM, MW
Frequency response20Hz to 20kHz
Input sensitivity2.5mV (MM), 150mV (line)
Output150mV (line)
Speaker load impedance4Ω to 16Ω
Signal to noise ratio90dB (line)

Summary

Line Voltage Selection

Specifications

Block Diagram

Front Panel Controls

Tuning, Volume, and Selector Controls

Operates tuning, adjusts volume, and selects program sources.

Tone, Balance, and Muting Controls

Adjusts bass, treble, balance, and FM muting.

Switches, Indicators, and Headphone Jack

Manages tape monitoring, band status, and private headphone listening.

Front Panel Facilities

Power Switch and FM Stereo Indicator

Controls power and indicates FM stereo reception.

Signal Meter and Memory/Preset Controls

Displays signal strength and manages station presets.

Dial Pointer and Manual Switch

Indicates tuning frequency and engages manual tuning.

Circuit Descriptions

Tuner Circuitry and Electronic Tuning

Details tuner sections, vari-caps, and LSI tuning system.

Tuning System Operations

Covers fine tuning, memory, muting, and meter functions.

Tuning Mode and Memory Management

Explains band switching, manual/preset tuning, and memory operations.

LSI Interface and Control Pins

Describes LSI pins for tuning, band selection, and data output.

Parts Location

Front Panel Parts Identification

Locates components on the front panel.

Rear Panel Parts Identification

Locates components on the rear panel.

Top View Parts Identification

Locates internal components visible from the top.

Dial Cord Stringing

Adjustments

Tuner Section Tuning Voltage

Adjusts tuning voltage for MW and FM bands.

FM Tuner Adjustments

Calibration steps for FM signal generator inputs.

FM Multiplex Decoder Circuit Adjustments

Calibration steps for the FM MPX decoder circuit.

AM Tuner LW Band Adjustments

Calibration steps for the AM LW band tuner.

AM Tuner MW Band Adjustments

Calibration steps for the AM MW band tuner.

Power Amplifier Adjustment

Checks and adjusts power amplifier output voltage.

PC Board Connection Diagram

Electrical Parts List

Schematic Diagram

Packing Information

Supplements for HB Type

Interior Component Identification

Exploded View

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