Clarion ARB1370E - User Manual

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Overview

Clarions FM-MPX/MW/LW Radio Cassette Combination (Model ARB1370E)

Clarions FM-MPX/MW/LW Radio Cassette Combination (Model ARB1370E)

The Clarions ARB1370E is a versatile car audio system designed to provide a comprehensive range of entertainment options, including FM-MPX, MW, and LW radio reception, alongside a cassette player. This model is specifically designed for use in VW and Audi vehicles, with distinct illumination options: Amber for VW and Green for Audi.

Function Description

The ARB1370E serves as a central audio unit for vehicles, offering both radio and cassette playback capabilities. The radio section supports PLL synthesizer tuning for precise station selection across FM, MW, and LW bands. The FM frequency range is 87.5 to 108MHz, with 0.05MHz steps. MW covers 531 to 1,602kHz in 9kHz steps, and LW covers 153 to 279kHz in 3kHz steps. This wide range ensures compatibility with various regional broadcasting standards.

The cassette deck section is a compact audio cassette type, featuring auto-reverse playback. It supports both mono-aural and stereo playback, with a frequency response of 30 to 15kHz ±3dB. The wow & flutter (WRMS) is rated at 0.1%, indicating stable tape playback. The system also includes a Dolby B noise reduction system, enhancing audio quality during cassette playback.

The device incorporates several features for user convenience and safety. It includes an electronic quartz-locked PLL tuning system for stable radio reception and 24 presets (18FM, 6MW/LW) for quick access to favorite stations. A preset scan function allows users to quickly browse through stored stations. The auto store (AS) feature automatically stores strong signals, simplifying initial setup. The double-gullwing hard permalloy head ensures durability and high-quality sound reproduction from cassettes. The system supports various balance, fader, bass, and treble controls, allowing users to customize the audio output to their preference. Muting functionality is also included. A partially-detachable control panel adds a layer of security against theft.

Important Technical Specifications

Radio Section:

Tuning System: PLL synthesizer tuner
Receiving Frequencies:
- FM: 87.5 to 108MHz (0.05MHz steps)
- MW: 531 to 1,602kHz (9kHz steps)
- LW: 153 to 279kHz (3kHz steps)

Tape Deck Section:

Cassette Type: Compact audio cassette
Playback System: Auto reversing 4-track, 2-channel stereo cassette tape playback (monaural playback also possible)
Frequency Response: 30 to 15kHz ±3dB
Wow & Flutter (WRMS): 0.1%
S/N Ratio: 120 μs(normal): 53dB
Tape Types: Normal

General:

Max Power Output: 4×30W
Effective Power Output (1%THD): 4×14W
Power Supply Voltage: DC 14V (10.8 to 15.6V allowable)
Auto Antenna Rated Current: 0.5A or less
Dimensions (mm): 178(W)×50(H)×152(D)
Weight: 1.3kg

Usage Features

The ARB1370E is designed for ease of use within a vehicle environment. The front panel features a clear display and intuitive controls for radio tuning, cassette playback, and audio adjustments. The 24 preset stations allow for quick access to frequently listened-to radio channels. The auto store function simplifies the initial setup by automatically finding and storing strong signals.

The auto-reverse cassette deck eliminates the need to manually flip the tape, providing continuous playback. The Dolby B noise reduction system can be engaged to improve the sound quality of cassette tapes, especially older recordings. The detachable control panel is a key security feature, allowing users to remove the faceplate when leaving the vehicle, deterring theft.

The system's compatibility with VW and Audi vehicles is highlighted by the specific illumination options (Amber for VW, Green for Audi), ensuring aesthetic integration with the car's interior. The various audio controls (balance, fader, bass, treble) enable users to tailor the sound output to their personal preferences and the acoustics of their vehicle.

Maintenance Features

Maintenance of the ARB1370E primarily involves routine checks and careful handling to ensure longevity and optimal performance. The manual emphasizes the importance of proper installation and repair practices.

General Maintenance:

Cleaning: Regular cleaning of the unit, especially the cassette deck head and pinch rollers, is crucial for maintaining sound quality and preventing tape damage.
Fuse Replacement: The manual provides a diagram for the position of the fuse for VW and Audi vehicles, indicating that fuse replacement should be done carefully to avoid damage.
Power Antenna: The short-circuiting the power antenna terminal or using a power antenna with a current exceeding the rated current can damage internal circuits. Always use with the rated current.
Shock Prevention: The DCP (detachable control panel) can be damaged by shocks. When removing it, be careful not to drop it or subject it to strong shocks.
Release Button: When the release button is pressed and the DCP is unlocked, the car's vibration may cause it to fall. Exercise caution during this operation.

Repair and Inspection: The manual provides detailed guidelines for repair and inspection, stressing the importance of using specified parts and following correct procedures to avoid further damage or safety risks.

Specified Parts: Always use specified parts for repair. Using unspecified parts can lead to damage, malfunction, or safety issues.
Proper Wiring: Ensure correct placement and wiring of parts. Incorrect wiring can cause damage to internal circuits, leading to malfunction or safety hazards.
Damaged Parts: Replace damaged parts immediately. Using damaged parts can lead to further complications and safety risks.
Connection and Soldering: Proper connection and soldering are critical. Poor connections can lead to intermittent operation or complete failure.
Checking Screws, Parts, and Wires: After repair, thoroughly check that all screws, parts, and wires are put back securely in their original position.
Removing and Making Wiring Connection: Be careful when removing and making wiring connections to the car for the automobile. Disconnect the battery terminal after turning the ignition key off. If wrong connections are made with the battery connected, a short circuit and/or fire may occur.
Capacitors: Do not remove released chips even when no abnormality is observed in their appearance. Always replace them with new ones. The chip parts, including resistors, capacitors, diodes, transistors, etc., are sensitive to heat. Use specified tools and follow correct procedures when replacing them.
Soldering: When working with a soldering iron, make sure that the iron tip temperature is around 270°C. Take care not to apply the iron tip repeatedly (more than three times) to the same patterns. Also take care not to apply tip with force.
Unit OFF: Turn the unit OFF during disassembly and parts replacement. Recheck all work before applying power to the unit.

These guidelines underscore the importance of professional and careful handling during any maintenance or repair procedures to ensure the continued safe and reliable operation of the ARB1370E.