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MINI HiFi COMPONENT SYSTEM
RXD-402/402E/402W/452/452E/452W/502/502E/
RXD-502W/552/552E/552W/572S/A41/A51
SERVICE MANUAL
(XD-402~A51) **
Knob
(K29-7545-04)
Phone jack
(E11-0280-05)
Knob
(K29-7544-04)
Front glass
(B10-3448-02)
Cassette lid (L)
(A53-2121-02)
Knob
(K29-7553-01)
Panel *
(A60-)
**Refer to page 2 if you want to know system configuration.
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
Knob
(K29-7541-02)
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
© 1999-1/B51-5500-00 (K/K) 3590
Front glass
(B10-)
Illustration is RXD-402.
* Refer to parts list on page 48~.
Knob
(K29-7543-04)
Knob
(K29-7541-02)
Front glass
(B10-3449-02)
Cassette lid (R)
(A53-2122-02)
Front glass
(B10-3471-03)
Panel (CD)
(A29-1046-02)
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Table of Contents
Related Manuals for Kenwood RXD-452
Summarization of Contents
External View and Disassembly
How to Open the Tray
Procedure to open the cassette or CD tray if it does not come out manually.
Circuit Description - Initialization and Receiver Test Modes
Initial Conditions and Operation
Details on setting initial conditions and the microcomputer's initialization process.
Receiver Test Mode Operations
Describes how to enter, cancel, and operate the receiver in test mode.
Circuit Description - Cassette and CD Test Modes
Cassette Deck and CD Player Test Modes
Instructions for setting, canceling, and operating test modes for cassette deck and CD player.
Circuit Description - Microprocessor and Key Matrix
Main Microprocessor Block Diagram
Overview of the main microprocessor and its peripheral connections.
Key Matrix Input
Details on the input voltage and key assignments for the control matrix.
Circuit Description - I/O and Drivers
Microprocessor I/O Port Descriptions
Detailed descriptions of microprocessor I/O ports and their active states.
RDS LED Driver
Description of the RDS LED driver pins and their functions.
Adjustment Procedures
Idle Current Adjustment
Procedure for adjusting the idle current of the main unit.
Tuner Adjustment
VCO, Resonance Point, and Separation
Adjustment procedures for VCO, resonance point, and separation in the tuner section.
Player Adjustment
Laser Power and Focus/Bias
Adjusting laser power and focus error bias for the CD player.
Cassette Deck Adjustment
Demagnetization, Azimuth, Speed, and Bias
Adjustment steps for cassette deck demagnetization, azimuth, speed, and bias current.
PC Board Layouts
MPX Unit and Record/Playback Unit Layouts
Component side view layout for MPX and Record/Playback units.
Power Amplifier and Supply Unit Layouts
Power Amplifier and Power Supply Unit Layouts
Component side view layout for Power Amplifier and Power Supply units.
Specifications
Main Unit Amplifier Section
Detailed specifications for the amplifier section, including power output and SNR.
Main Unit Tuner Section
Tuning frequency ranges for FM and AM bands across different regions.
Cassette Deck and CD Player Sections
Specifications for cassette deck operation and CD player laser/performance.
General Specifications
Overall specifications including power consumption, dimensions, and weight.
Specifications Summary
Amplifier and Tuner Specifications
Summary of amplifier power output and tuner frequency ranges for various models.
CD Player, Cassette Deck, and General Specs
Summary of CD player, cassette deck, and general unit specifications.
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