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Kenwood RXD-502 User Manual

Kenwood RXD-502
47 pages
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Panel (CD)
(A29-1046-02)
Knob
(K29-7544-04)
Knob
(K29-7543-04)
Front glass
(B10-)
Front glass
(B10-3449-02)
Front glass
(B10-3471-03)
Knob
(K29-7541-02)
Knob
(K29-7541-02)
Knob
(K29-7545-04)
Panel *
(A60-)
Front glass
(B10-3448-02)
Cassette lid (R)
(A53-2122-02)
Cassette lid (L)
(A53-2121-02)
Phone jack
(E11-0280-05)
Knob
(K29-7553-01)
MINI HiFi COMPONENT SYSTEM
RXD-402/402E/402W/452/452E/452W/502/502E/
RXD-502W/552/552E/552W/572S/A41/A51
(XD-402~A51) **
SERVICE MANUAL
© 1999-1/B51-5500-00 (K/K) 3590
Illustration is RXD-402.
* Refer to parts list on page 48~.
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
**Refer to page 2 if you want to know system configuration.
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
RXD-402(E) INT1P 99.6.9 7:25 PM y[W 2
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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Kenwood RXD-502 Specifications

General IconGeneral
Frequency Response20Hz - 20kHz
TypeStereo Receiver
FunctionsCD, Cassette, Radio, AUX
Tuner SectionAM/FM
Power SupplyAC 230V, 50/60Hz

Summary

External View / Disassembly for Repair

External View Component Identification

Diagram showing the exterior components and connections of the Hi-Fi system.

Disassembly Instructions

Instructions on how to open the tray if it does not come out.

System Block Diagram

Circuit Description

Initialization Procedures

Steps for setting initial conditions and initializing the microcomputer and mechanisms.

TUNER Destination List

Table detailing tuner destination types, frequency ranges, channel space, and IF/RF.

Test Mode Operations

Procedures for entering and canceling test modes for the receiver.

Circuit Description (continued)

Main Microprocessor Overview

Block diagram illustrating the microprocessor and its peripheral components.

Key Matrix Input

Table mapping input voltage levels to specific key presses for the microprocessor.

Circuit Description (continued)

Microprocessor Pin Description

Detailed description of each pin function for the M30622MA-173FP microprocessor.

Circuit Description (continued)

IC Controller and RDS LED Driver

Details on IC controllers and the RDS LED driver circuit.

Adjustment

Amplifier Adjustment

Procedure for adjusting the idle current of the amplifier section.

Adjustment (continued)

Tuner Adjustment Procedures

Steps for adjusting VCO, Resonance Point, and Separation for the tuner.

Adjustment (continued)

CD Player Adjustment Procedures

Steps for adjusting Laser Power and Focus Error Bias for the CD player.

Adjustment (continued)

Cassette Deck Adjustment

Procedures for demagnetization, azimuth, playback level, and bias current.

Wiring Diagram

PC BOARD (Component Side View)

MPX UNIT Board Layout

Component layout for the MPX circuit board.

RECORD/PLAYBACK UNIT Board Layout

Component layout for the Record/Playback circuit board.

PC BOARD (Component Side View)

POWER AMPLIFIER UNIT Board Layout

Component layout for the Power Amplifier circuit board.

POWER SUPPLY UNIT Board Layout

Component layout for the Power Supply circuit board.

PC BOARD (Component Side View)

SUB-CIRCUIT UNIT Board Layout

Component layout for the Sub-Circuit unit board.

PC BOARD (Component Side View)

DISPLAY UNIT Board Layout

Component layout for the Display unit board.

Exploded View: CD Mechanism

Exploded View: Cassette Mechanism

Exploded View: Main Unit Components

Parts List

How to Read the Parts List

Specifications

Main Unit Specifications

Technical specifications for the amplifier, tuner, and cassette deck sections.

CD Player Specifications

Technical specifications for the CD player, including laser and wow/flutter.

General Specifications

Overall system specifications like power consumption, dimensions, and weight.

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