This document serves as a service manual for the Aiwa XR-MD110, a combined MD/CD stereo system. It provides comprehensive information for the maintenance, repair, and understanding of the device's internal components and operational features.
Function Description
The Aiwa XR-MD110 is designed as a versatile stereo system, integrating both MiniDisc (MD) and Compact Disc (CD) playback capabilities. This dual functionality allows users to enjoy audio from two popular digital formats within a single unit. The system is built around a BASIC CD MECHANISM (KSM-213CDM) for CD playback and a BASIC MD MECHANISM (7ZG-9 YB) for MiniDisc operations, ensuring dedicated and optimized performance for each format. The "MD/CD STEREO SYSTEM" designation highlights its primary role as an audio entertainment hub, capable of handling both disc types. The inclusion of a "SIMPLE MANUAL" suggests an emphasis on user-friendliness, aiming for straightforward operation despite its dual-format nature. The device is categorized under "TYPE:D(S)," which likely refers to a specific product series or market segment, indicating its intended application and feature set within Aiwa's product line.
Usage Features
The manual, while primarily for service, implicitly reveals several usage features through its component listings. The presence of various buttons and controls, such as "BTN, SET REC," "BTN, SET CD," "BTN, SET POWER," "BTN, SET FUNC," "BTN, POWER," "BTN, MD EJECT," "BTN, CD OPEN," and "BTN, JOG," indicates a comprehensive user interface. These controls suggest that users can:
- Record: The "BTN, SET REC" implies recording capabilities, likely from CD to MD, or from an external source to MD, a common feature in MD/CD systems.
- Select Source: "BTN, SET CD" and "BTN, SET FUNC" point to the ability to switch between CD and MD modes, or other potential functions like radio or auxiliary input.
- Power Management: "BTN, SET POWER" and "BTN, POWER" provide standard power on/off functionality.
- Disc Ejection: "BTN, MD EJECT" and "BTN, CD OPEN" allow for the loading and unloading of MiniDiscs and Compact Discs, respectively.
- Navigation and Control: The "BTN, JOG" suggests a rotary control for navigating menus, adjusting settings, or fine-tuning playback, offering a tactile user experience.
- Display and Indicators: The presence of "LED" components (SE6201AT RED, W03304GSC-SC GR, W03327GRHW GR/RED DUAL COL) and "WINDOW, FL SUH" (Fluorescent Display Unit) indicates that the system provides visual feedback to the user, displaying track information, time, mode, and other operational statuses. The dual-color LEDs suggest multi-status indications.
- Connectivity: Listings like "CONN,18P B TMC-D(P)," "CONN, 7P H WHT," "CONN,16P V TOC-B," "CONNECTOR, 8P PH V WHT," "CONN, 6P PH V," "JACK, DIA 3.5," and "TERMINAL, SP 4P (MSC)" imply various input/output options. These could include connections for external audio devices (AUX in/out), headphones, and possibly remote control or other system integrations. The "ANT, FEEDER FM" and "ANT, LOOP AM-NC C" confirm built-in radio reception capabilities, allowing users to tune into AM/FM broadcasts.
- Remote Control: The "RC UNIT,RC-ZAT03 (VS)" explicitly states the inclusion of a remote control, enhancing user convenience by allowing operation from a distance.
- Speaker System: "CABI, REAR SPKR," "PANEL, FR," "PANEL, TW," "GRILLE, FRAME ASSY," "SPKR,W100," and "SPKR, TW25" indicate that the system comes with its own speaker enclosures and drivers, providing a complete audio solution. The mention of "W100" and "TW25" likely refers to woofer and tweeter sizes, suggesting a multi-driver speaker design for improved sound quality.
Maintenance Features
The service manual itself is a primary maintenance feature, providing detailed information crucial for technicians. Key aspects for maintenance include:
- Parts Lists: The "ELECTRICAL MAIN PARTS LIST" and "MECHANICAL PARTS LIST" are exhaustive, detailing every component with its part number, quantity, description, and suffix. This allows for precise identification and ordering of replacement parts, ensuring that repairs can be carried out with the correct components.
- Component Identification: The lists include various types of components such as "CHIP CAPACITOR," "ELECTROLYTIC," "DIODE," "ZENER," "LED," "IC," "TRANSISTOR," "COIL," "FUSE," "SWITCH," "MOTOR," "PULLEY," "GEAR," "BELT," and "SCREW." This level of detail is essential for troubleshooting and component-level repairs.
- Specific Mechanisms: The explicit mention of "BASIC CD MECHANISM : KSM-213CDM" and "BASIC MD MECHANISM : 7ZG-9 YB" indicates that these are modular units. This modularity simplifies repair by allowing technicians to replace entire mechanisms rather than individual components within them, if necessary.
- Cables and Connectors: Listings for "FF-CABLE" and various "CONN" (connectors) with specified pin counts and types (e.g., "7P 1.0 150MM UL2896," "16P H WHT 528071610") are vital for reassembly and ensuring proper electrical connections after disassembly for repair.
- Structural Components: Details like "CABI, FRONT S," "CABI, REAR SU," "CHAS, MD," "CHAS, CD," "PANEL, CONTROL 5A," "WINDOW, CD," and various "HLDR" (holders) provide insight into the physical construction of the device. This helps technicians understand how the unit is assembled and disassembled, preventing damage during repairs.
- Fasteners: The inclusion of "TAPPING SCREW," "SCREW," and "FASTENER" types ensures that technicians use the correct fasteners during reassembly, maintaining the structural integrity of the device.
- Revision Management: The note "Replace this Service Manual with 'Revision Publishing' when it is issued" highlights a system for keeping documentation up-to-date. This ensures that technicians always have access to the latest information, including any design changes or updated repair procedures. This proactive approach to documentation management is critical for effective long-term maintenance.
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