This document provides service and operational information for the KENWOOD Compact Hi-Fi Component System models RD-M313, LS-M313, and M-313. It includes an exploded view of the general assembly, parts lists, electrical parts lists for the main, front control, tuner, and USB boards, and safety instructions.
Function Description
The KENWOOD Compact Hi-Fi Component System is a versatile audio device designed for playing various media. It includes a CD player, an FM/RDS tuner, and a USB memory playback function. The system is equipped with an amplifier section and supports external audio input.
Important Technical Specifications
Amplifier Section:
- Output Power: 5 W + 5 W at 4Ω (10% THD)
- Speakers Impedance: 4Ω to 8Ω
- Audio Input: AUDIO IN: Stereo mini (Ø3.5mm), 250 mV/50 kΩ; USB MEMORY
Tuner:
- FM Tuning Range: 87.50 MHz - 108.00 MHz
Disc Player:
- Wow and Flutter: Immeasurable
USB:
- USB Specification: Compatible with USB 2.0 Full Speed
- Compatible Device: Mass storage class
- Compatible System: FAT16, FAT32
- Output Power: DC 5V, 500mA
General:
- Power Requirement: AC 230 V ~/50 Hz
- Power Consumption at Operation: 25 W
- Power Consumption in Standby Mode: 1 W or less
- Dimensions (approx.): 150 mm x 175 mm x 211 mm (W x H x D)
- Weight (approx.): 2.1 kg
Speakers:
- Speaker Type: 1-Way Bass-Reflex type
- Speaker Units: 10 cm x 1
- Impedance: 4Ω
- Dimensions (approx.): 140 mm x 173 mm x 170 mm (W x H x D)
- Weight (approx.): 1.2 kg each
Usage Features
The system offers multiple ways to enjoy audio:
- CD Playback: The integrated CD player supports standard audio CDs.
- FM/RDS Tuner: Users can tune into FM radio stations, with RDS (Radio Data System) functionality providing additional information where available.
- USB Memory Playback: The system supports playback from USB memory devices, compatible with USB 2.0 Full Speed, FAT16, and FAT32 file systems. It can play MP3/WMA files.
- External Audio Input: An AUDIO IN jack allows connection of external audio sources via a stereo mini-jack.
- Headphone Output: A headphone jack is provided for private listening.
- Remote Control: The system can be operated remotely using the supplied remote control unit (A70-1759-08).
- Display: An LCD display (B38-0297-08) provides visual feedback on the system's status and playback information.
- Control Buttons: Front panel buttons include STANDBY, CLOCK/SLEEP, DISPLAY/PROGRAM, FM/AUDIO, TUNING-DOWN, PRE-DOWN, PRE-UP, TUNING-UP, CD, USB, and STOP. Volume control is managed by a rotary knob.
- Standby Mode: When in standby, the STANDBY lamp lights red. When the system is turned on, the STANDBY lamp goes off.
Maintenance Features
The manual emphasizes safety and proper handling for maintenance:
- Safety Critical Components: Parts marked with a triangle (▲) are safety assurance parts. When replacing these parts, it is crucial to use the specified ones to ensure continued safety.
- No User-Serviceable Parts Inside: The device should not be opened by users. All servicing must be referred to qualified service personnel to prevent electric shock and maintain product integrity.
- Laser Product Safety: The device is a Class 1 Laser Product, meaning there is no danger of hazardous radiation outside the product. However, users are cautioned not to open the top cover or cabinet and not to view directly with optical instruments when visible and/or invisible Class 1M laser radiation is present.
- Power Cord Handling: To reduce the risk of electrical shocks or fire, users should:
- Remove the plug from the wall outlet for extended periods of absence.
- Always pull the plug, not the power cord, when unplugging.
- Avoid handling the power cord with wet hands.
- Disconnect the power cord before cleaning or moving the system.
- Not alter, twist, or put heavy objects on the power cord.
- Installation Guidelines:
- Install the system on a level, dry surface, between 5°C and 35°C.
- Avoid installing in places subject to vibrations or direct sunlight, or near heating devices.
- Do not place heavy objects on the system.
- Do not insert metallic objects into the system.
- Do not place naked flame sources (e.g., lighted candles) on the apparatus.
- Do not expose the apparatus to rain, moisture, dripping, or splashing, and ensure no objects filled with liquids (e.g., vases) are placed on it.
- Disposal Information: The manual includes information on the proper disposal of old electrical and electronic equipment and batteries in accordance with EU waste collection systems, indicating that products and batteries with the crossed-out wheeled bin symbol should not be disposed of as household waste. They should be recycled at appropriate facilities to conserve resources and prevent environmental harm. The "Pb" sign below the battery symbol indicates the presence of lead.
- Hearing Safety: Excessive sound pressure from earphones or headphones can cause hearing loss.
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