Kenwood RD-HD7 User Manual

MICRO Hi-Fi COMPONENT SYSTEM
RD-HD5MD/HD7
SERVICE MANUAL
(HD-5MD/HD-7)
© 2002-11 PRINTED IN KOREA
B51-5835-00 (K/K) 3430
Door(MD)
(A52-0989-08)
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the product relating to laser
product safety.
KENWOOD Corp. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
Button
(K29-8274-08)
Knob(VOLUME)
(K29-8275-08)
Jack,D3.5
(E11-0969-08)
Window *
(B10-3934-08)
Panel *
(A60-)
Ter,RCA
(E63-0187-08)
Module
(W02-2802-05)
Module
(W02-2803-05)
Ter,RCA
(E63-1181-08)
Cabinet *
(A01-)
Tuner *
(W02-)
SW, Push block
(E21-0041-08)
SW, Slide *
(S62-0098-08)
Cord ass'y *
(E30-)
Stopper(AC cord)
(J42-0355-08)
* Refer to parts list on page 41.
Illust. is RD-HD5MD.
70%
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1 5 1 5
0 9 9
2
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4 2
9 8
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299

Kenwood RD-HD7 Specifications

General

Tuner Bands	FM/AM
Channels	2.0
CD Playback	Yes
Display	LCD
Remote Control	Yes
Media Type	CD
Inputs	Auxiliary
Outputs	Headphone

Summary

External View of Kenwood RD-HD5MD/HD7

Disassembly and Adjustment Procedures

Disassembly for Repair

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

Adjustment Procedures

Details for adjusting the audio section idle current.

Circuit Description and Electrical Adjustments

Initializing the System

Method and operation for initial system setup.

Test Mode Operations

Setting and operation procedures for test modes.

MD Test Mode for Adjustment

Procedures for adjusting MD test modes.

Electrical Adjustment Precautions

Precautions for laser diode emission confirmation.

Optical Pickup and Adjustment Precautions

Optical Pickup Handling Precautions

Handling precautions for the optical pick-up to prevent damage.

General Adjustment Precautions

Precautions and tools needed for adjustment procedures.

Creating Recordable Continuous Disc

Instructions for creating a disc for bias and error rate confirmation.

Offset Adjustment Procedure

Procedure for temperature compensation offset adjustment.

Laser Power Check and Adjustment

Laser power setting in playback and recording modes.

EF Balance Traverse Adjustment

Procedure for EF balance and traverse adjustment.

Further Electrical Adjustments and Error Checks

Automatic EF Balance Adjustment

Procedure for automatic EF balance adjustment.

Focus Bias Adjustment

Focus bias adjustment using a special disc.

Error Rate Checks

Procedures for CD and MD error rate checks.

Microprocessor Pin Descriptions

Microprocessor Pin Descriptions Continued

Integrated Circuit Pin Descriptions

Power Amplifier STK402 Pin Description

Pin descriptions for the Power Amplifier STK402.

Audio Selector/Volume IC M61510FP Pin Description

Pin descriptions for the Audio Selector/Volume IC.

More Integrated Circuit Pin Descriptions

Rec Amplifier BA6138 Pin Description

Pin descriptions for the Rec Amplifier.

DSP IC MN6627482WB Pin Description

Pin descriptions for the DSP IC.

DSP IC Pin Descriptions Continued

DSP IC MN6627482WB Pin Description Continued

Pin descriptions for the DSP IC (continued).

Converter and Processor Pin Descriptions

D/A Converter PCM1742 Pin Description

Pin descriptions for the D/A Converter.

Digital Signal Processor CXD2664R Pin Description

Pin descriptions for the Digital Signal Processor.

Processor Pin Descriptions Continued

Digital Signal Processor CXD2664R Pin Description Continued

Pin descriptions for the Digital Signal Processor (continued).

More Processor and RF Amplifier Pin Descriptions

Digital Signal Processor CXD2664R Pin Description Continued

Pin descriptions for the Digital Signal Processor (continued).

MD RF Amplifier CXA2523AR Pin Description

Pin descriptions for the MD RF Amplifier.

RF Amplifier and BTL Driver Pin Descriptions

MD RF Amplifier CXA2523AR Pin Description Continued

Pin descriptions for the MD RF Amplifier (continued).

4ch BTL Driver BA5815FM Pin Description

Pin descriptions for the 4ch BTL Driver.

BTL Driver, Head Coil Driver, and Converter Pin Descriptions

4ch BTL Driver BA5815FM Pin Description Continued

Pin descriptions for the 4ch BTL Driver (continued).

Head Coil Driver BD7910FV Pin Description

Pin descriptions for the Head Coil Driver.

A/D, D/A Converter AK4550VT Pin Description

Pin descriptions for the A/D, D/A Converter.

PC Board Layout Diagrams

Exploded View of RD-HD7 Single CD Mechanism

Exploded View of RD-HD5MD 3-CD Mechanism

Exploded View of RD-HD5MD MD Mechanism

Exploded View of RD-HD5MD Main Unit

Exploded View of RD-HD7 Main Unit

Parts List - Main Unit

Parts List - CD Mechanism

Parts List - MD Control PCB

Parts List - Electronic Components

System Specifications

CD Player Section Specifications

Specifications for the CD player functionality.

Tuner Section Specifications

Specifications for the FM and AM tuner sections.