Genius GHT-S200 Bedienungsanleitung

Service Guide GHT-S200

SERVICE GUIDE

KYE SYSTEMS CORP

GHT-S200

Version:1.0

Version 1.0 Page 1 of 21

Service Guide GHT-S200

Revision History

Version Date Change

1.0 22/08/2005

Version 1.0 Page 2 of 21

Service Guide GHT-S200

Table of Contents

RevisionHistory 2

TableofContents 3

GettingStarted 4

Conventions Used in this Guide 4

SafetyPrecautions 4

Chapter 1. How to Handle Defective Returns 5

1.1Overview 5

1.2Problems 6

1.2.1 FL/FR, RL/RR channels no sound 7

1.2.2 CEN channel no sound 8

1.2.3 Woofer channel no sound 8

1.2.4 Woofer no power 9

Chapter 2. Specifications 10

Chapter 3. Block Diagram 12

Chapter 4. Exploded View 13

Chapter 5. Part List 15

Chapter 6. Schematic Diagram 16

SchematicDiagram 17

SchematicDiagram 18

SchematicDiagram 19

SchematicDiagram 20

Chapter 7. Important Notes 21

7.1 Packing Requirement for Sending the PCB Assembly by post 21

7.2 Short of Spare Parts while Repairing a Speaker system 21

Version 1.0 Page 3 of 21

Service Guide GHT-S200

Getting Started

Conventions Used in this 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 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 substances, 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 GHT-S200

Chapter 1. How to Handle Defective Returns

1.1 Overview

Version 1.0 Page 5 of 21

Receiving Defective speaker form customers

Analyzing possible

malfunction causes

Deciding & proceeding

the rectification methods

Replace necessary

ect

Return the speakers with

ope

r r

epac

Verifying problems

proceeding

necessary tests

Proceeding tests to

verify if the speaker is

functioning normally

Function OK

Function NG

Function OK

Function NG

Service Guide GHT-S200

1.2 Problems

Item Problem Description

1.2.1 FL/FR, RL/RR channels no sound

1.2.2 CEN channel no sound

1.2.3 Woofer channel no sound

1.2.4 Woofer no power

Version 1.0 Page 6 of 21

Service Guide GHT-S200

* 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 FL/FR, RL/RR channels no sound

Problem

Analyzer and

Identify the Causes

Solutions

Version 1.0 Page 7 of 21

FL/FR,RL/RR channels no sound

Broken or short circuit

Check solder points on

PCB

Defective

U303,U310,IC200,IC2

01, CC1,CC2,CC4,

CC5,C326,C334,C329

,C337 Q300,ZD1,

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective IC or

components

Service Guide GHT-S200

1.2.2 CEN channel no sound

Problem

Analyzer and

Identify the Causes

Solutions

1.2.3 Woofer channel no sound

Problem

Analyzer and

Identify the Causes

Solutions

Version 1.0 Page 8 of 21

CEN channel no sound

Broken or short circuit

Check solder points on

PCB

Defective

U311,IC202,C209,CC

3,C332,Q300,ZD1

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective IC or

components

Woofer channel no sound

Broken or short circuit

Check solder points on

PCB

Defective

U301,IC202,U200,C22

1,C312,C320,R305,R3

07,C313,CN301

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective IC or

components

Service Guide GHT-S200

1.2.4 Woofer no power

Problem

Analyzer and

Identify the Causes

Solutions

Version 1.0 Page 9 of 21

Woofer no power

Broken or short circuit

Check solder points on

PCB

Defective

U100,U300,Y100,R30

3,R304,R300,C112,C1

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective IC or

components

Service Guide GHT-S200

Chapter 2. Specifications

Satellite – Center (AT 1KHZ):

NO Description Unit Specifications

1 Out Power at THD 10% W 20 ± 2

2 Sensitivity mV 300 ± 50

3 Freq Response (Ref:-3dB) Hz 40~20K

4 S/N ratio dB ≧60

5 Hum & Noise Vol:max mV ≦5

Satellite – Front (AT 1KHZ):

NO Description Unit Specifications

1 Out Power at THD 10% W 20± 2

2 Sensitivity mV 300 ± 50

3 Freq Response (Ref:-3dB) Hz 40~20K

4 Separation dB ≧35

5 S/N ratio dB ≧60

6 Hum & Noise Vol:max mV ≦5

Satellite – Rear (AT 1KHZ):

NO Description Unit Specifications

1 Out Power at THD 10% W 20 ± 2

2 Sensitivity mV 300 ± 50

3 Freq Response (Ref:-3dB) Hz 40~20K

4 Separation dB ≧35

5 S/N ratio dB ≧60

6 Hum & Noise Vol:max mV ≦5

Version 1.0 Page 10 of 21

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