The Panasonic SE-5508(c) is a compact stereo system that integrates an FM/AM/FM stereo radio with a cassette tape deck and an automatic record changer. This versatile unit is designed to provide a comprehensive audio experience, combining traditional and modern playback methods in a single, space-saving console.
Function Description:
The core of the SE-5508(c) is its multi-source audio playback capability. The FM/AM/FM stereo radio allows users to tune into a wide range of broadcast stations, offering both monaural and stereo reception. The integrated cassette tape deck supports recording and playback of standard cassette tapes, featuring AC bias and AC erase systems for optimal audio quality. For vinyl enthusiasts, the automatic record changer, manufactured by BSR (model C141R1-A1-4531/616), provides seamless playback of multiple records. This record changer is capable of handling 33-1/3, 45, and 78 r.p.m. speeds, accommodating various vinyl formats. The system's amplifier section delivers 10 watts per channel of continuous RMS power, ensuring clear and robust sound output through connected speakers.
Important Technical Specifications:
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Amplifier Section:
- Power Output: 10 watts per channel minimum continuous RMS power at 8 ohms from 70 Hz to 20 kHz, with no more than 2% total harmonic distortion.
- Input Sensitivity and Impedance:
- Phono: 2.7 mV, 40k ohms
- Mic: 1.0 mV, 1.5k ohms
- Aux: 300 mV, 50k ohms
- REC Output Level and Impedance: 150 mV, 2k ohms
- Tone Controls: Bass (±10 dB at 100 Hz), Treble (±10 dB at 10 kHz).
- Loudness Control: +7 dB at 100 Hz, +4 dB at 10 kHz (Volume at -30 dB position).
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FM Tuner Section:
- Frequency Range: 88 MHz ~ 108 MHz
- Usable Sensitivity: 3.0 µV (S/N 30 dB Mod. 30%)
- Harmonic Distortion: Mono (0.3% at 1 kHz Mod. 30%), Stereo (0.5% at 1 kHz Mod. 30%)
- Selectivity: 55 dB
- Signal/Noise Ratio: 65 dB (at 1 kHz Mod. 100% Mono)
- Stereo Separation: 35 dB (at 1 kHz)
- Image Rejection: 40 dB (98 MHz)
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AM Tuner Section:
- Frequency Range: 525 kHz ~ 1605 kHz
- Sensitivity: 100 µV/m for 50 mW
- Selectivity: 25 dB
- Image Rejection: 35 dB
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Record Player Section:
- Player System: Automatic Record Changer (BSR C141R1-A1-4531/616)
- Turntable Size: 28 cm (11")
- Turntable Speed: 33-1/3, 45 and 78 r.p.m., 3-speed
- Phonomotor: 4-Pole Induction
- Cartridge: Magnetic
- Stylus: Diamond
- Stylus Pressure: 4 ~ 5g
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Tape Deck Section:
- Recording System: AC Bias (47 kHz)
- Erasing System: AC Erase (47 kHz)
- Tape Speed: 4.75 cm/sec. (1-7/8 i.p.s.)
- Frequency Response: 70 Hz ~ 12 kHz (Normal), 70 Hz ~ 15 kHz (CrO2)
- Signal/Noise Ratio: 52 dB (Weighted)
- Wow and Flutter: 0.2% (WRMS)
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General:
- AC Power Supply: AC 120V, 60 Hz
- Power Consumption: 80W
- Dimensions (WxHxD): 567 mm x 249 mm x 417 mm (22-5/16" x 9-13/16" x 16-7/16")
- Weight: 11.9 kg (26 lbs. 4 oz.)
Usage Features:
The SE-5508(c) is designed for ease of use, offering intuitive controls for its various functions. The front panel features a clear dial scale for radio tuning, along with dedicated knobs for volume, selector (Phono, FM, AM, Aux, Tape), bass, and treble adjustments. Push buttons are provided for common operations such as power, eject, and record on the cassette deck. The automatic record changer simplifies vinyl playback by allowing users to stack multiple records for continuous listening. Input jacks for headphones and a microphone are included, enhancing the system's versatility for personal listening and recording. The compact design makes it suitable for various living spaces, providing a complete stereo system without requiring separate components.
Maintenance Features:
The service manual provides detailed instructions for the maintenance and repair of the SE-5508(c). Key maintenance features include:
- Disassembly Instructions: Step-by-step guides for disassembling the unit, including the cabinet, chassis, tape deck, and record changer, facilitating access to internal components for repair or replacement.
- Alignment Instructions: Specific procedures for aligning the radio tuner (FM and AM sections) and the cassette tape deck. These instructions cover adjustments for optimal frequency response, sensitivity, and stereo separation, ensuring the unit performs to its specifications.
- Mechanical Adjustment: Detailed guides for mechanical adjustments of the cassette tape deck and the automatic record changer. This includes procedures for setting tape speed, wow and flutter, and various record changer mechanisms to ensure smooth and accurate operation.
- Wiring and Schematic Diagrams: Comprehensive diagrams illustrating the internal wiring and circuit schematics. These are crucial for troubleshooting electrical issues and understanding the signal flow within the system.
- Parts Lists: Extensive replacement parts lists for the cabinet, chassis, record changer, and tape deck. Each list includes part numbers, descriptions, and quantities, making it easy to identify and order necessary components for repair.
- Exploded Views: Detailed exploded diagrams of the record changer and tape deck assemblies. These visual aids help technicians understand the arrangement of parts and facilitate correct reassembly after repairs.
- Component Location: Diagrams showing the physical location of components within the cabinet and on the chassis, aiding in quick identification during servicing.
The manual emphasizes that specifications are subject to change without notice for further improvement, indicating a commitment to ongoing product development. The inclusion of both English and French descriptions and technical data makes the manual accessible to a broader audience. The shaded area in the schematic diagram highlights components that are critical for safety, underscoring the importance of using specified replacement parts for these areas to maintain the unit's safety standards.
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