Sony AIVA SSX-LZX7 - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The AWP-ZX7 is a micro hi-fi component system, comprising an amplifier, CD player, tape deck, tuner, and speaker system (SSX-LZX7). This comprehensive audio system offers a range of features for playback and recording, along with various maintenance and adjustment capabilities.

Function Description:

The AWP-ZX7 serves as a complete home audio solution, integrating multiple components into a single system.

Amplifier: The core of the system, providing power output for the speakers. It includes controls for bass and treble, along with an i-Bass function for enhanced low-frequency sound.
CD Player: Supports compact discs and digital audio systems, featuring a semiconductor laser for playback. It includes a multi-disc changer (CDM69CV-F4BD81B2) capable of holding multiple discs, and offers functions like play, pause, stop, track skip, and play mode selection (e.g., repeat).
Tape Deck: A 4-track, 2-channel stereo tape deck that supports Sony TYPE I cassettes for both playback and recording. It includes standard tape transport functions such as play, rewind, fast forward, record, and pause.
Tuner: An FM stereo, FM/AM superheterodyne tuner for radio reception. It allows tuning across various frequency ranges and includes features for station memory and band selection.
Speaker System (SSX-LZX7): A 2-way, bass-reflex type speaker system, designed to complement the main unit's audio output. Each speaker unit includes a woofer and a tweeter.

Important Technical Specifications:

Amplifier Section:
- Power Output (U.S. Model): 60 watts per channel minimum RMS power (6 ohms, 120-10,000 Hz, 10% THD).
- Continuous RMS Power Output (North American Model): 60 + 60 W (6 ohms at 1 kHz, 10% THD). Total harmonic distortion less than 0.05% (6 ohms at 1 kHz, 30 W).
- DIN Power Output (European Model): 45 + 45 W (6 ohms at 1 kHz, DIN).
- Continuous RMS Power Output (European Model): 60 + 60 W (6 ohms at 1 kHz, 10% THD).
- Music Power Output (European Model): 100 + 100 W (6 ohms at 1 kHz, 10% THD).
- Inputs: AUX IN (RCA pin jacks) with sensitivity 1 V and impedance 47 kilohms.
- Outputs: PHONES (stereo mini jack) for headphones with an impedance of 32 ohms or more. SPEAKER output for 6-ohm impedance speakers. SUB WOOFER OUT with voltage 1.5 V.
CD Player Section:
- System: Compact disc and digital audio system.
- Laser: Semiconductor laser (λ=770 – 810 nm), continuous emission duration.
- Frequency Response: 20 Hz – 20 kHz.
- Signal-to-Noise Ratio: More than 90 dB.
- Dynamic Range: More than 90 dB.
Tape Deck Section:
- Recording System: 4-track 2-channel stereo.
- Frequency Response: 100 – 10,000 Hz (using Sony TYPE I cassettes).
Tuner Section:
- Tuning Range (FM): 87.5 – 108.0 MHz (100-kHz step for North American model, 50-kHz step for other models).
- Tuning Range (AM): 530 – 1,710 kHz (10-kHz step for Pan-American model, 531 – 1,710 kHz (9-kHz step for European model), 531 – 1,602 kHz (9-kHz step for other models).
- Antenna: FM lead antenna, AM loop antenna.
- Antenna Terminals: 75 ohms unbalanced.
- Intermediate Frequency: 10.7 MHz (FM), 450 kHz (AM).
General:
- Power Requirements: 120 V AC, 60 Hz (North American model); 230 V AC, 50/60 Hz (European model); 220 V AC, 60 Hz (Korean model); 120 V, 220 V or 230-240 V AC, 50/60 Hz adjustable with voltage selector (Other models).
- Power Consumption: 60 W (North American/European models), 70 W (Other models). 0.3 W in Power Saving mode (European model).
- Dimensions (w/h/d): Approx. 190 x 277 x 361.4 mm (main unit).
- Mass: Approx. 6.2 kg (main unit).
Speaker System (SSX-LZX7):
- Speaker Units: 2-way, bass-reflex type.
- Woofer: 12 cm dia., cone type.
- Tweeter: 5 cm dia., cone type.
- Nominal Impedance: 6 ohms.
- Dimensions: Approx. 170 x 277 x 235 mm.
- Mass: Approx. 2.7 kg net per speaker.

Usage Features:

The AWP-ZX7 offers a user-friendly interface with both front panel controls and a remote control.

Clock/Timer Functions: Users can set the clock and utilize timer functions for scheduled operations.
Sound Customization: Bass and treble controls, along with an i-Bass function, allow users to adjust the sound to their preference.
Multi-Disc CD Changer: The system features a CD mechanism that can handle multiple discs, providing extended playback without manual disc changes.
USB Port: A USB port is available (USB A), enabling playback from compatible USB devices.
Remote Control: A comprehensive remote control provides access to all major functions, including power, play, pause, stop, track skip, volume, tuning, and mode selection.
Display Window: A fluorescent indicator tube displays information such as track numbers, time, radio frequency, and system status.

Maintenance Features:

The service manual outlines various procedures for maintenance and adjustment to ensure optimal performance and safety.

Safety-Related Component Warning: Components identified with a mark or dotted line are critical for safety and must be replaced only with specified Sony parts.
Cleaning: Regular cleaning of the record/playback heads, erase head, capstan, pinch rollers, rubber belts, and idlers with a denatured alcohol-moistened swab is recommended for the tape deck.
Demagnetization: The record/playback head should be demagnetized with a head demagnetizer.
Torque Measurement: Procedures for measuring FWD, FWD back tension, REV, REV back tension, FF/REV, FWD tension, and REV tension are provided to ensure correct tape transport mechanism operation.
Record/Playback Head Azimuth Adjustment: Detailed steps for adjusting the azimuth of the record/playback head using a test tape and level meter are included.
Tape Speed Check: A procedure to verify the tape speed using a test tape and frequency counter is provided, along with a sample value for wow and flutter.
CD Section Adjustments:
- S-curve Check: A procedure to check the S-curve waveform using an oscilloscope to ensure proper optical pick-up operation.
- RFAC Level Check: Steps to check the RFAC signal level for the CD player.
- RFDCO Level Check: A procedure to check the RFDCO signal level.
- E-F Balance Adjustment: Instructions for adjusting the E-F balance of the optical pick-up.
Test Modes:
- Cold Reset: Clears all data, including preset data, stored in RAM to initial conditions.
- Version Display Mode: Displays the microcomputer's version.
- LCD Check: Tests all fluorescent segments of the display.
- CD Ship Mode: Moves the optical pick-up to a position durable to vibration for transport.
- CD Test Mode: Allows free movement of the CD sled motor for cleaning or testing.
- CD Repeat 5 Times Limit Release Mode: Releases the repeat limit for CD playback.
- Disc Tray Lock: Locks the disc tray for anti-theft purposes, with procedures for both setting and releasing the lock.
- AMP Test: Checks the amplifier's function, including volume and EQ controls.
- AM Channel Step Selection Mode: Allows selection between 9 kHz and 10 kHz steps for AM channel tuning.
Disassembly Procedures: Detailed instructions with diagrams are provided for disassembling various sections of the unit, including side panels, top panel, back panel, CD mechanism, front panel, main board, power transformer, cassette deck mechanism, USB board, optical pick-up, and sensor board.
Assembly Procedures: Instructions for correctly installing components such as the cam, gears, rotary encoder, and stocker assembly.