KYE Systems Corp. Genius SP-T1200 Manual de usuario

Service Guide SP-T1200

Version 1.0 Page 1 of 22

SERVICE GUIDE

KYE SYSTEMS CORP

SP-T1200

Version:1.0

Revision History

Service Guide SP-T1200

Version 1.0 Page 2 of 22

Version Date Change

1.0 04/22/2008 Initial

1.1 06/20/2008 Add PCB photos

Service Guide SP-T1200

Version 1.0 Page 3 of 22

Table of Contents

RevisionHistory 2

TableofContents 3

GettingStarted 4

ConventionsUsedinthisGuide 4

SafetyPrecautions 4

Chapter 1. How to Handle Defective Returns 5

1.1Overview 5

1.2Problems 6

1.2.1 L/R channels no sound 7

1.2.2NoPower 7

1.2.3Touchfunctionfail 8

Chapter 2. Printed Circuit Board 9

2.1MCUControlBoard 9

2.2AmplifierBoard 10

2.3TouchControlBoard 10

2.4PowerBoard 11

Chapter 3. Specifications 11

Chapter 4. Block Diagram 12

Chapter 5. Exploded View 13

Chapter 6. Part List 14

Chapter 7. Schematic Diagram 17

7.1MCUControl 17

7.2AmplifierBoard 19

7.3TouchControl 20

7.4PowerBoard 21

Chapter 8. Important Notes 22

8.1 Packing Requirement for Sending the PCB Assembly by post 22

8.2 Short of Spare Parts while Repairing a Speaker system 22

Service Guide SP-T1200

Version 1.0 Page 4 of 22

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.

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.

Service Guide SP-T1200

Version 1.0 Page 5 of 22

Chapter 1. How to Handle Defective Returns

1.1 Overview

Receiving Defective speaker from customers

Analyzing possible

malfunction causes

Deciding & proceeding the

rectification methods

Replace necessary

defective

arts

Return the speakers with proper

acka

to customers

Verifying problems

proceeding

necessar

tests

Proceeding tests to

verify if the speaker is

functionin

normall

Function OK

Function NG

Function OKFunction NG

Service Guide SP-T1200

Version 1.0 Page 6 of 22

1.2 Problems

Item Problem Description

1.2.1 L/R channels no sound

1.2.2 NO power

1.2.3 Touch function fail

Service Guide SP-T1200

Version 1.0 Page 7 of 22

* 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 L/R channels no sound

Problem

Analyze and

Identify the Causes

Solutions

1.2.2 No power

Problem

Analyze and

Identify the Causes

Solutions

L/R channels no sound

Broken or short circuit

Check solder points on

PCB

Defective

U1/U3/U4/U5/U7/U8

/U11/U14/U18/Q1/Q2

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective IC or

components

No power

Broken or short circuit

Check solder points on

PCB

Defective

U6/U15/Q5/Q10 External power supply

dis-connected or damaged

Re-connected power supply or

replace defective power supply

Check and replace

defective components

Service Guide SP-T1200

Version 1.0 Page 8 of 22

1.2.3 Touch function fail

Problem

Analyze and

Identify the Causes

Solutions

Touch function fail

Broken or short circuit

Check solder points on

PCB

Defective

U16/J7 External power supply

dis-connected or damaged

Re-connected power supply or

replace defective power supply

Check and replace

defective components

Service Guide SP-T1200

Version 1.0 Page 9 of 22

Chapter 2. PRINTED CIRCUIT BOARD

2.1 MCU Control Board

2.2 Amplifier Board

Service Guide SP-T1200

Version 1.0 Page 10 of 22

2.3 Touch Control Board

2.4 Power Board

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