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Service Guide

SP-HF2.0 800

Version : 1.0

Page 5 of 15

Chapter 1. How to Handle Defective Returns

1.1 Overview

Verifying problems

Proceeding necessary tests

Receiving Defective speakers form

Customers

Analyzing possible malfunction

causes

Deciding & proceeding the

rectification methods

Replace necessary defective parts

Proceeding tests to
Verify if the speaker is
functioning normally

Return the speakers with proper
repackaging to customers

Function NG

Function OK

Function NG

Содержание SP-HF2.0 800

Страница 1: ...Service Guide SP HF2 0 800 Version 1 0 Page 1 of 15 SERVICE GUIDE KYE SYSTEMS CORP SP HF2 0 800 Version 1 0 ...

Страница 2: ...Service Guide SP HF2 0 800 Version 1 0 Page 2 of 15 Revision History Version Date Change 1 0 12 30 2004 ...

Страница 3: ... Overview 5 1 2 Problems 6 1 2 1 One or more channels no sound 7 1 2 2 Power LED indicator no light 8 1 2 3 Volume Treble Bass no function 8 Chapter 2 Specifications 9 Chapter 3 Block Diagram 11 Chapter 4 Exploded View 12 Chapter 5 Part List 15 Chapter 6 Schematic Diagram 17 Chapter 7 Important Notes 19 7 1 Packing Requirement for Sending the PCB Assembly by Post 19 7 2 Short of Spare Parts while ...

Страница 4: ...eakers 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...

Страница 5: ...sary tests Receiving Defective speakers form Customers Analyzing possible malfunction causes Deciding proceeding the rectification methods Replace necessary defective parts Proceeding tests to Verify if the speaker is functioning normally Return the speakers with proper repackaging to customers Function NG Function OK Function OK Function NG ...

Страница 6: ...Service Guide SP HF2 0 800 Version 1 0 Page 6 of 15 1 2 Problems Item Problem Description 1 2 1 One or more channels no sound 1 2 2 Power LED indicator no light 1 2 3 Volume Treble Bass no function ...

Страница 7: ...arenthesis given in individual Flow chat in that this is the best recommended sequence to rectify the problems One or more channels no sound Broken or short circuit Defective U2 Speaker cable dis connect or speaker damaged Check solder points on PCB Check and Replace defective IC Re connect speaker cable or replace defective speaker s Analyzer and Identify the Causes ...

Страница 8: ... Power switch or LED defective Defective D5 8 ZD1 ZD2 r21 R44 C24 C27 Dc cord of transformer disconnectedor defective Re solder or replace defective component s Analyzer and Identify the Causes Volume Treble Bass no function Broken or short circuit DefectiveU1 VR1 VR2 VR3 R5 12 C3 10 C13 14 Check solder points on PCB Analyzer and Identify the Causes Check and Replace defective components ...

Страница 9: ...on 1 0 Page 9 of 15 Chapter 2 Specifications NO Description Unit Specifications 1 Out Power at THD 10 W 10 2 Sensitivity mV 650 70 3 Freq Response Ref 3dB Hz 90Hz 20KHz 10 4 Separation dB 40 5 S N ratio dB 60 6 Hum Noise Vol max mV 10 ...

Страница 10: ...Service Guide SP HF2 0 800 Version 1 0 Page 10 of 15 Chapter 3 Block Diagram AUDIO IN Bass Control Power Amplifier Host Speaker AC IN Satellite Speaker Treble Control Volume Control Transformer Filter ...

Страница 11: ...Service Guide SP HF2 0 800 Version 1 0 Page 11 of 15 Chapter 4 Exploded View Host ...

Страница 12: ...Service Guide SP HF2 0 800 Version 1 0 Page 12 of 15 Satellite ...

Страница 13: ...6 10 IC TDA2009A 1 PC 6 100 03 11 IC YG4558 SW Flat2 1 500 1 PC 2 100 05 12 Transformer 120V 18VAC 1 4A 12VACx2 0 1A 6 100 04 13 Transformer 230V 18VAC 1 4A 12VACx2 0 1A 6 100 05 14 Transformer 240V 18VAC 1 4A 12VACx2 0 1A 1 PC 6 100 06 15 Input Audio Cable SP HF2 0 1250 1 PC 6 100 07 16 Output Audio Cable SP HF2 0 1250 1 PC 6 100 08 17 Audio Cable 4 Green 1 to 2 GHT 502 1 PC 3 100 11 18 Gift Box ...

Страница 14: ...Service Guide SP HF2 0 800 Version 1 0 Page 14 of 15 Chapter 6 Schematic Diagram ...

Страница 15: ...ence it is necessary to pack each PCB assembly with a separate static protecting bag in order to avoid static electricity Reliable external packing is also very important when sending PCB assembly by post in that it would avoid unnecessarily lost or damage 7 2 Short of Spare Parts while Repairing a Speaker System If you are short of spare parts when you have some speaker systems waiting to be repa...

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