KYE Systems Corp. Genius SP-J200 Manuale utente

Service Guide SP-J200

SERVICE GUIDE

KYE SYSTEM CORP

Version 1.0 Page 1 of 21

Service Guide SP-J200

Revision History

Version Date Change

1.0 12/12/2008

Version 1.0 Page 2 of 21

Service Guide SP-J200

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 Right channel no sound….……….……….……….……….……….……9

1.2.4 Left channel no sound….……….……….……….……….……….……10

1.2.5 VR no use……..………………………………………………………..…11

1.2.6 Noise………………………….……………………….……………...….12

1.2.7 LED indicators no light……………………………………….……..…..13

1.2.8 Input jack no use……..……………………………………….……..…..14

Chapter 2. Specification…………………………………………………..……15

Chapter 3. Block diagram…………………………………………..………….16

Chapter 4. Exploded view………………………………………………………17

Right speaker……………………………………………………………….….17

Left speaker…………………………..………………..…….…………………18

Chapter 5. Part list…………………………………… …………….…………...19

Right speaker………………………………………………….……………….. 19

Left speaker……………………………………………………………………...19

Chapter 6 Important notes……………………………………………………….20

Chapter 7 Schematic diagram……………………………………………………21

Version 1.0 Page 3 of 21

Table of Contents

Service Guide SP-J200

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.

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.

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 21

Service Guide SP-J200

Chapter 1. How to Handle Defective Returns

1.1 Overview

Function NG Function OK

FunctionNG

FunctionOK

Version 1.0 Page 5 of 21

Receiving Defective speaker from customers

Return the speakers with proper

repacking to customers

Verifying problems

Proceeding

Necessary tests

Analyzing possible

Malfunction cause

Deciding & proceeding the

Rectification methods

Replace necessary

Defective parts

Proceeding

Necessary tests

Verifying problems

Service Guide SP-J200

1.2 Problems

Item Problem Description

1.2.1 No power，LED （indicator）no light

1.2.2 No sound

1.2.3 Right channel no sound

1.2.4 Left channel no sound

1.2.5 No effect when rotating VR

1.2.6 Noise

1.2.7 LEDindicatorsnolight

1.2.8 Input jack no use

Version1.0 Page6of21

Service Guide SP-J200

*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 21

Repair or replace

Defective

transformer

1.Defective AC cable

No power，LED （indicator）unlighted

2. Loose connection between

AC cable and primary wire of

the transformer

3. Loose connection between

transformer secondary wire and

PT1 on PCB

resolder or replace

2. defective VR1 in PCB

Repair or replace

1. PCB Copper foil broken

Service Guide SP-J200

1.2.2 no sound

Problem

Analyze and

identify the

causes

]

Solutions

Version 1.0 Page 8 of 21

No sound

PCB broken, dry-soldered, or

short-circuited

Repair or replace

Input cable connected

well or not

Repair, resolder or

replace

Power supply for IC1 normal

or not;

EC11, IC1, VR1 defective,

dry-soldered or

Repair or replace

Service Guide SP-J200

1.2.3 Right channel no sound

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 9 of 21

Input cable, or

input jack

damaged or

defective

Right Speaker

cable damaged or

defective

Right driver unit

dry-soldered or

defective

1. Defective IC1 IN PCB

2. Defective VR1,VR2 in PCB

3. PCB damaged, dry-soldered or

short-circuited

Replace or

replace

Re-connect ,

replace or repair

Replace or

replace

Right channel no sound

Service Guide SP-J200

1.2.4 Left channel no sound

Problem

Analyze and

identify the

causes

Solutions

Version 1.0 Page 10 of 21

Input cable, or

input jack

damaged or

defective

Left Speaker cable

damaged or defective

Left driver unit

dry-soldered or defective

Repair or

replace

2. Defective VR1,VR2 in PCB

3. PCB damaged, dry-soldered or

short-circuited

1. Defective IC1 IN PCB

Re-connect,

replace or repair

Repair or

replace

Left channel no sound

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