Genius SP-HF1250A Bedienungsanleitung

KYE SYSTEMS CORP.

P-

-H

Version:1.0

Total 16 Pages (Cover Page included)

Version: 1.0 Page 1/15

Version Date Changes

1．0 Official Release

Guide

ervice SP-HF1250A

Revision Histor

Version: 1.0 Page 2/15

Revision History……………………………………………………………………..1

Table of Contents………………………………………………… ………….2

Getting Started………………………………………………… ……….……………....3

Conventions Used in this Guide………………… ………...……………….3

Safety Precautions……………………………… ………………...………..3

Chapter1. How to Handle Defective Returns………………… ……………………….4

1.1 Overview……………………………………………………………….4

1.2 Problems………………………………………………………………..5

1.2.1 Power LED (indicator) Unlighted………………...……………......6

1.2.2 Does not work or one channel no sound……………………….…..7

1.2.3 Noise……………………………………………………………….7

Chapter2. Specifications………………………………………………………………..8

Chapter3. Block Diagram……………………………………………………………....9

Chapter4. Exploded View…………………………………………………………….…10-11

Chapter5. Part List……………………………………………………………………..12-13

Chapter6. Important Notes…………………………………………………………....14

6.1 Packing Requirement for sending the PCBAssembly by post……….…14

6.2 Short of Spare Parts while Repairing a Speaker System…………….….14

Chapter7. Circuit Schematic……………………………………………………………15

Guide

ervice SP-HF1250A

Table of Contents

Version: 1.0 Page 3/15

Conventions Used in this Guide

Pay Special Attention: Instructions that areimportantto

remember and may prevent mistakes.

Safety Precautions

The following precautions should be observed in handling the speaker described in this guide:

Place the speakers on a flat level and stable surface.

Do not place the speakers in environments subject to mist, smoke, vibration, excessive dust, salty

or greasy air, or other corrosive gases and fumes.

Do not drop or jolt the speakers.

Do not allow anything to drop into the subwoofer case through its ventilator, as it could result

in fatal electric shock or fire.

Place the unit far enough from other equipments for good heat dissipation.

Disconnect the AC power cord from the AC outlet before performing any maintenance on the

speakers.

Do not perform any maintenance with wet hand.

Prevent foreign substance, such as water, other liquids or chemicals, from entering the speakers

while performing maintenance procedures on the speakers.

Guide

ervice SP-HF1250A

Getting Started

Attention

Caution: Information that, if not followed, may result in

damage to the product.

Version: 1.0 Page 4/15

1.1 Overview

Guide

ervice SP-HF1250A

Chapter 1. How to Handle Defective Returns

Receiving Defective

Speakers

from Customers

Verifying problems&

Proceeding necessary tests

Analyzing possible

Malfunction causes

Deciding & proceeding

the rectification methods

Replacing necessary

Defective parts

Proceeding tests

To verify if the speaker is

functioning normally

Functioning OK

Return the speakers with

Pro

er re

acka

to customers

Functioning NG Functioning OK

Functioning NG

Version: 1.0 Page 5/15

1.2 Problems

Item Problemdescriptions

1.2.1 Power LED (indicator) unlighted

1.2.2 Does not work or one channel no sound

1.2.3 Noise

Guide

ervice SP-HF1250A

Version: 1.0 Page 6/15

Attention

1.2.1 Power LED (indicator) unlighted

Guide

ervice SP-HF1250A

Please follow the numbered sequence marked within parenthesis given in individual

Flow chart, in that this is the best-recommended sequence to rectify the problems.

Problem

Analyze

and

Identify

the Causes

Solutions

Secondary wire Of

transformer is

Disconnedcted of

defective

CheckD1.2

.3.4

Check

LED Defective power

Switch

Resolder or replace defective component（s）

Power LED （indicator）unlighted

Version: 1.0 Page 7/15

1.2.2 Does not work or one channel no sound

1.2.3 Noise

Guide

ervice SP-HF1250A

Problem

Analyze

and

Identify the

Causes

Solutions

Does not work or

One channel no sound

Broken o

Short circui

Defective IC

(TDA2030A)

Defective

Audio cable

Replace

Audio cable

Check solde

Points on PCB

And resolder

defective one

(

)

Check and replace

Defective IC

(TDA2030A)

Problem

Analyze and

Identify the

Causes

Solutions

Noise

Defective

VR Defective IC

(TDA2030A)

Check and replace

defective component(s) Replace

Defective VR Replace defective IC

(TDA2030A)

Component(s) aroun

IC is/are defective

Version: 1.0 Page 8/15

Satellite

. DESCRIPTION UNIT NOMINAL LIMIT

FR FL ≥19

1. FRONT OUTPUT POWER @THD 10% W 19.8 19.8

2 SENSITIVITY（1KHz）@RATED O/P

POWER

mV 640 640

±50

3 SENSITIVITY(1KHz)@1W O/P POWER mV 130 130 ±20

4 MAX INPUT LEVEL@1% THD mV 500 500 ±40

5 FREQUENCY RESPONSE(1KHz=0dB)

50Hz dB -3 -3

±0.5

1K dB 0 0

±0.5

20K dB -3 -3

±0.5

6 S/N @RATED O/P POWER dB 80 80 ≥60

7 CHANNEL UNBALANCE @REF O/P

POWER

dB 0.3 0.3

≤0.5

8 CHANNEL SEPARATION(ONE

CHANNEL IN; OTHER CHANNEL INPUT

SHORTING)

dB 59 59

≥45

9 HUM NOISE (VR MAX)

(VOLUME MAX; INPUT SHORTING)

mV 0.9 0.9 ≤5

10 HUM NOISE (VR MIN)

(VOLUME MIN. INPUT SHORTING)

mV 0.2 0.2 ≤3

Guide

ervice SP-HF1250A

Chapter 2. Specifications

Version: 1.0 Page 9/15

Guide

ervice SP-HF1250A

Chapter 3. Block Diagram

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