KYE Systems Corp. Genius SP-S115 User manual

Service Guide SP-S115

SERVICE GUIDE

KYE SYSTEM CORP

Version 1.0 Page 1 of 19

Service Guide SP-S115

Revision History

Version Date Change

1.0 25/06/2010

Version 1.0 Page 2 of 19

Service Guide SP-S115

Revision History………………………………………………………………….2

Table of contents……………………………………………………………...…3

Getting Start…………………………………………………….………………...4

Conventions Used in this Guide…………………………………………….…4

Safety Precautions………………………………………………………………4

Chapter 1. How to Handle Defective Returns……………………………….5

1.2 Problem………………………………………………………………………6

1.2.1 No power，LED （indicator）unlighted……………………………….7

1.2.2 No sound…………………………………………………………….…….8

1.2.3 Noise………………….….……….……….……….……….……….….…9

1.2.4 LED indicators no light when working….…..….……….……….….…10

1.2.5 Volume switch no use…………………………………………….…..…11

1.2.6 Headphone jack no use……………….…………….……………….….12

Chapter 2. Specification…………………………………………………..……13

Chapter 3. Block diagram…………………………………………..………….14

Chapter 4. Exploded view………………………………………………………15

Active speaker………………………………………………………….……….15

Passive speaker………………………………………..…….…………………16

Chapter 5. Part list…………………………………… …………….…………...17

Active speaker…………………………………………………….…….…….. 17

Passive speaker……………………………………………………………...…17

Chapter 6 Important notes………………………………………………………18

Chapter 7 Schematic diagram………………………………………………….29

Version 1.0 Page 3 of 19

Table

of Contents

Service Guide SP-S115

Getting Started

Conventions Used in the Guide

Pay Special Attention: Instructions that are important to remember and may prevent

mistakes.

Caution: Information that, if not followed, may result in damage to the product.

Safety Precautions

The following precautions should be observed in handing 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.

Donotallowanythingtodrop 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.

Do not perform any maintenance with wet hand.

Preventforeignsubstance,such as water, other liquids or chemical, from entering

the speakers while performing maintenance procedures on the speakers.

Version 1.0 Page 4 of 19

Service Guide SP-S115

Chapter 1. How to Handle Defective Returns

1.1 Overview

Function NG Function OK

FunctionNG

FunctionOK

Version 1.0 Page 5 of 19

Receiving Defective speaker from customers

Verifying problems

Proceeding

Necessary tests

Verifying problems

Proceeding

Necessary tests

Analyzing possible

Malfunction cause

Deciding & proceeding the

Rectification methods

Replace necessary

Defective parts

Return the speakers with proper

repacking to customers

Service Guide SP-S115

1.2 Problems

Item Problem Description

1.2.1 No power，LED （indicator）unlighted

1.2.2 No sound

1.2.3 Noise

1.2.4 LED indicators no light when working

1.2.5 Volume switch no use

1.2.6 Headphone jack no use

Version1.0 Page6of19

Service Guide SP-S115

*Attention

Please follow the numbered sequence marked within parenthesis given in

individual

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

1.2.1 No power，LED （indicator）unlighted

Problem

Analyze

and identify

the causes

Solutions

Version 1.0 Page 7 of 19

Repair or replace

Dry-soldered secondary

wire of transformer

Defective or

damaged D1-D1

diode

resolder or replace

No power，LED （indicator）unlighted

Power switch poor

connected or defective

Repair or replace

Service Guide SP-S115

1.2.2 no sound

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 8 of 19

PCB damaged,

dry-soldered or

short-circuited

Power supply for IC

TDA2822 abnormal or

damaged

No sound

Or VR1 damaged

Repair or replace

Repair, resolder or

replace

Service Guide SP-S115

1.2.3. Noise

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 9 of 19

Noise

1. Filter capacitor not work,

dry-soldered, or diode damaged

2. Or Power supply for IC

TDA2822 abnormal

3. Or PCB broken or

dry-soldered

Or Vibration from too

long lead wire of driver

units; or damaged/

short-circuited driver

units;

Or VR poor connected;

Repair Check and replace Repair or replace

Service Guide SP-S115

1.2.4. LED indicators no light when working

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 10 of 19

LED indicators no li

ht when workin

1. LED1 damaged or PCB copper foil broken

2. LED1 , R7 defective or dry-soldered

Check and replace

Table of contents

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