Technics SL-HD301

ORDER NO. AD9902011C8
Service Manual
Compact Disc Player
=
MASH"
SL-HD301
aliste
|
MASH
is
a
trademark
of
NTT.
|
SL-HD501
DIGITAL AUDIO
SB-HD301 $B-HD301 Color
SB-HD501 SB-HD501
(N).......... Gold Type
SHS SEER ing
. Bisel aoe Europe, Asia Latin America, Middle Near East,
Africa, Oceania, East Europe and Russia.
System:SC-HD301
' ' SC-HD501
Remote control RS-HD301 SE-HD301
transmitter RS-HD501 SE-HD501
Because of unique interconnecting cables, when a component requires service, send or bring in
the entire system.
Note:
Refer to the service manual for Model No. SE-HD301/501(ORDER NO.AD 9902013C2 and AD9902014C2) for
information on “ACCESSORIES, "INSTALLATION”, ‘CONNECTIONS’ and "PACKAGING".
RAE0152Z Mechanism Series
Specifications
@
Audio
:
m@
General
DA converter: 1 bit 2 DAC MASH Dimensions (WxHxD): (SL-HD301)186 x 67 x 229 mm
Digital output terminal:Opticalx1 (SL-HD501)196 x 67 x 229 mm
Pickup Weight : 1.2 kg
Wavelength:780nm
Power
Supply:
DC13V/N10V
Format - Power Consumption: 10W
Sampling frequency:44.1kHz Notes:
1.Design and specifications are subject to change without notice.
2.Dimensions and weight are approximate.
System : ad
SC-HD301:
Tuner:ST-HD301,Compact Disc Player:SL-HD301 ,Amplifier:SE-HD301,Cassette Deck:RS-HD301,Speakers:SB-HD301 (Made in PAIS.)
SC-HD501:
Tuner:ST-HD501,Compact Disc Player:SL-HD501 ,Amplifier:SE-HD501,Cassette Deck:RS-HD501,Speakers:SB-HD501 (Made in PAIS.)
A\ WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general pubic.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a pod! uct.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt tc service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
Technics
© 1999 Matsushita Electric Industrial Co. Ltcd.
All rights reserved. Unauthorized copying ancl
distribution is a violation of law.
fea

Technics SL-HD301 Specifications

General

Type	CD Player
Dynamic Range	96 dB
Channel Separation	90 dB
Frequency Response	2Hz - 20kHz
Output Level/Voltage	2V RMS
Power Requirements	AC 230 V, 50 Hz

Summary

Specifications

Audio Specifications

Details on DA converter, digital output, format, and sampling frequency.

General Specifications

Dimensions, weight, power supply, and power consumption.

WARNING

1 Befor Repair

2 Precaution of Laser Diode

3 Operating Instructions

Front Panel Controls

Identifies and explains the function of each front panel button.

Listening to Compact Discs

Step-by-step guide for playing CDs, including sequential play and adjustments.

Playing CD TEXT discs

Instructions for displaying and scrolling text information from CD TEXT discs.

4 Handling Precautions for Traverse Deck

4.1. Handling of traverse deck (optical pickup)

Guidelines for safely handling the optical pickup unit.

4.2. Grounding for electrostatic breakdown prevention

Procedures for preventing static discharge damage.

5 Operation Checks and Component Replacement Procedures

Checking Procedures for Printed Circuit Boards

Steps for verifying the operation of printed circuit boards.

Main Component Replacement Procedures

Steps for replacing major system components.

6 Error Code Display and Servo Adjustment Function

6.1. Error code display procedure

Steps to display error codes for fault diagnosis.

6.2. Servo adjustment procedure

Procedure for adjusting and checking servo system functions.

6.3. Table 1

Table correlating FL display symptoms with causes.

6.4. Table 2

Table detailing error codes, probable causes, and signal checks.

7 Mesurements and Adjustments

7.1. Power Supply to This Unit alone

Instructions for powering the unit independently for testing.

7.2. To Check Signals

Procedure for checking output signals using an oscilloscope.

8 Block Diagram

9 Schematic Diagram Notes

9.1. Scheamtic Diagram Notes

Explains symbols, notes, and safety precautions for schematic diagrams.

9.2. Type Illustration of ICs, Transistors and Diodes

Visual references for common electronic components used in the unit.

10 Schematic Diagram

11 Printed Circuit Board Diagram

12 Wiring Connection Diagram

13 Terminal Function of ICs

IC701 Servo AMP Terminal Functions

Detailed pin functions for the Servo Amplifier IC.

IC702 Servo Processor Terminal Functions

Pin functions for the main Servo Processor IC.

IC703 Motor Drive IC Terminal Functions

Pin functions for motor and coil drive IC.

IC403 System Control IC Terminal Functions

Pin functions for the System Control IC.

14 Replacement Parts List

15 Loading Mechanism Parts Location

16 Cabinet parts Location

1 Purpose of Supplement Manual

2 Traverse Deck Replacement Parts List

3 Traverse Deck Parts Location