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Genius SP-HF2.0 500 Service Manual

Made by: Genius
Type: Service Guide
Category: Speakers
Pages: 15
Size: 0.55 MB

 

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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 1 of 15

 

SERVICE GUIDE 

 
 

KYE

 

SYSTEMS CORP. 

 

 

 

 

 

 

 

 

 

                                                                                                 

SP-HF2.0 500 

Version : 1.0 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 2 of 15

 

Revision History                                                                                   

 

Version Date Change 

1.0 11/08/2004   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 3 of 15

 

Table of Contents 

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

Table of Contents ……………………………………………………………………3 

Getting Started ………………………………………………………………………4 

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

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

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

1.1 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 , 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 Repairing a Speaker System …………19 

 

 

 

 

 

 

 

 

 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 4 of 15

 

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 chemicals ,   

From entering the speakers while performing maintenance procedures 

on the speakers . 

             

 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  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 from 
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 

 


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Service Guide                                           

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  Version : 1.0 

       

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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 , Bass no function 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

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   Attention 
 
 
 
 
1.2.1  One or more channels no sound 

 

 

 

 

Problem 

 

 

 

 

 

 

 

 

Solutions 

 

 

 

 

 

 

 

 

 

 

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 . 

One or more channels no sound 

Broken or short circuit 

Defective IC1 

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

 

 


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Service Guide                                           

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  Version : 1.0 

       

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1.2.2      Power LED (indicator) no light 
 

 

 

Problem 

 

 

 

 

 

 

 

 

Solutions 

 
1.2.3    Volume , Tone no function 
 

 

Problem 

 

 

 

 

 

 

 

Solutions 

 

 

 

Power LED (indicator) no light 

Power switch or LED defective

Defective,D1-4,

Dc cord of transformer 

disconnected or defective

 

 Re-solder or replace 
defective component(s) 

Analyzer and   

Identify the Causes

 

Volume , Bass no function 

Broken or short circuit 

Defective C11-12,VR1, 

VR2,R7-10,C5-6,C9-10 

  Check solder points on PCB

Analyzer and   

Identify the Causes

 

Check and Replace defective 
components 

 


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Service Guide                                           

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  Version : 1.0 

       

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Chapter 2.  Specifications 
 
 

NO. Description 

Unit Specifications 

Out Power at THD 10% 

W    ≧ 7   

2 Sensitivity 

mV  500 ± 70 

Freq. Response    (Ref:-3dB) 

Hz  35Hz ~ 20KHz 

4 Separation 

dB ≧ 40 

5 S/N 

ratio 

dB ≧ 50 

Hum & Noise    Vol:max 

mV ≦ 10 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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  Version : 1.0 

       

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Chapter 3.  Block Diagram 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

AUDIO IN 

Volume 
Control 

 

Power 

Amplifier

R.CH Speaker 

AC IN 

L.CH Speaker 

Tone 
Control 

Power 
Conditioner

 


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SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 11 of 15

 

Chapter 4.  Exploded View 

Host 

 

 

 

 


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  Version : 1.0 

       

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Satellite 

 

 
 
 

 

 


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  Version : 1.0 

       

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Chapter 5.  Part List 

No. DESCRIPTION  Qty

UNIT

Part 

No. 

1  SP-HF 2.0 500/Body/Satellite 

PC  5-101-01 

2  Speaker Unit 3” 4ohm 8W 

PC  5-100-01 

3  TPR Isolation Cone, SP-HF2.0 500 

PC  5-100-02 

4  SP-HF 2.0 500/Body/Host-120V-US 

5-101-02 

5  SP-HF 2.0 500/Body/Host-230V-EU 

5-101-03 

6  SP-HF 2.0 500/Body/Host-240V-UK 

5-101-04 

7  SP-HF 2.0 500/Body/Host-240V-AU 

1 PC 

5-101-05 

8  PCBA, SP-HF2.0 500 

PC  5-101-06 

9 IC, 

TDA2007A  

PC  1-100-07 

10  Transformer, 120V:14.5VAC & 1.2A 

5-100-03 

11  Transformer, 230V:14.5VAC & 1.2A 

5-100-04 

12  Transformer, 240V:14.5VAC & 1.2A 

1 PC 

5-100-05 

13  Gift Box, SP-HF2.0 500 

PC  5-102-03 

14 Cushion(Top/Bottom), SP-HF2.0 500 

SET  5-102-02 

15  Round Yellow Type Label (on Gift Box ) 

PC  5-102-04 

16  S/N Label ( on Host & Gift Box ) 

PC  5-102-01 

17  Carton, SP-HF 2.0 500 

1/4 

PC  5-102-05 

18  PE Bag, SP-HF 2.0 500   

PC  5-102-06 

 

 

 

 

 

 

 

 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 14 of 15

 

Chapter 6.  Schematic Diagram 

 

 


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Service Guide                                           

SP-HF2.0 500

 

 

 

                         

  Version : 1.0 

       

Page 15 of 15

 

Chapter 7.  Important Notes 

7.1    Packing Requirement for Sending the PCB Assembly by Post 

PCB assembly is a kind of sophisticated electronic circuit board. Well 

packing will be required when sending them by post. 

* Some sophisticated IC components are mounted on the PCB assembly, 

hence 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 repaired, it would be recommended to take the necessary parts form 

one speaker system, so that you may have the as many speaker systems.