SW-5.1 1505 Service Guide .pdf - Genius

Service Guide SW-5.1 1505 

SERVICE GUIDE 

KYE SYSTEMS CORP. 

SW-5.1 1505 

Version : 1.0 Page 1 of 17


Revision History 

Version Date Change 

1.0 6/24/2009 



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 Wired Control no function..……………………..…7 

1.2.3 Power LED (indicator) no light………………....…8 

1.2.4 Volume , Bass no function...……..……….………..8 

Chapter 2. Specifications ………………………………………….………………9 

Chapter 3. Block Diagram …………………………………………….………….10 

Chapter 4. Exploded View ………………………………………….………….11~13 

Chapter 5. Part List ………………………………………….…………………14~15 

Chapter 6. Schematic Diagram ………….……………………...………….……..16 

Chapter 7. Important Notes ……………………………………………….………17 

7.1 Packing Requirement for Sending the PCB Assembly by Post. …..17 

7.2 Short of Spare Parts while Repairing a Speaker System ………..…17 



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 . 



Chapter 1. How to Handle Defective Returns 

1.1 Overview 

Receiving Defective speakers from 

Customers 

Verifying problems 

Proceeding necessary tests 

Function NG 

Analyzing possible malfunction 

causes 

Function NG 

Deciding & proceeding the 

rectification methods 

Function OK 

Replace necessary defective parts 

Proceeding tests to 

Verify if the speaker is 

functioning normally 

Function OK 

Return the speakers with proper 

repackaging to customers 



1.2 Problems 

Item 

Problem Description 

1.2.1 One or more channels no sound 

1.2.2 Wired Control no function 

1.2.3 Power LED (indicator) no light 

1.2.4 Volume , Bass no function 



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. 



Problem 

One or more channels no sound 

Analyzer and 

Identify the Causes 

Broken or short circuit 

Defective 

U1, U2, U3, U4,U5, 

U6,U7, VR1 , VR2 

wired control cable 

PCBA connect cable 

Speaker cable dis-connect 

or speaker damaged 

Solutions 

Check solder points on 

PCB 

Check and Replace 

defective IC 

Re-connect speaker 

cable or replace 

defective speaker(s) 

1.2.2 Wired Control no function 

Problem 

Wired control no function 

Analyzer and 



on PCBA 

Defective 

U1, U2, U3, U4,U5, 

U6,U7, VR1 

3 pin cable dis-connect 

or damaged 

Solutions 

Check solder points on 

PCBA 

Check and Replace 

defective IC, VR1 

Re-connect cable or 

replace defective cable 



1.2.3 Power LED (indicator) no light 

Problem 

Power LED (indicator) no light 

Analyzer and 


Power switch or LED 

defective 

Defective D2~D5 

POWER , R2 , LED 

wired control cable 

AC cord of transformer 

disconnected or defective 

Re-solder or replace 

Solutions 

defective component(s) 

1.2.4 Volume , Bass no function 

Problem 

Volume , Bass no function 

Analyzer and 



Volume: Defective VR1 

Bass: Defective VR2 

Solutions 

Check solder points on PCB 

Check and Replace defective 

components 



Chapter 2. Specifications 

Woofer 

NO. Description Unit Specifications 

1 Out Power at THD 10% W ≧ 17 

2 Sensitivity mV 130 ± 30 

3 Freq. Response (Top -3dB) Hz 30 ~ 150 ± 10% 

4 S/N ratio dB ≧ 70 

5 Hum & Noise (Vol.: max) mV ≦ 2 

Center 



2 Sensitivity mV 550 ± 50 

3 Freq. Response (Top -3dB) Hz 100 ~ 20K ± 10% 



Satellite 



2 Sensitivity mV 

3 Freq. Response (Top -3dB) Hz 

FL,FR=650 ± 60 

SL,SR=500 ± 60 

FL,FR=70 ~ 20K ± 10% 

SL,SR=80 ~ 20K ± 10% 

4 Separation dB ≧ 40 





Chapter 3. Block Diagram 

AUDIO IN 

FR,FL. Satellite 

Volume 

Control 

Wired Control Box 

Power 

Amplifier 

SR,SL. Satellite 

Center 

Woofer 

Woofer Volume 

FILTER 

AC IN 

Transformer & 

Rectifier 



Chapter 4. Exploded View 

Woofer 



Satellite 



Wired Control Box 



Chapter 5. Part List 

No. DESCRIPTION Qty UNIT Part No. 

1 SW-5.1 1505/Body/Satellite-FL 1 PC 29-101-01 

2 SW-5.1 1505/Body/Satellite-FR 1 PC 29-101-02 

3 SW-5.1 1505/Body/Satellite-SL 1 PC 29-101-03 

4 SW-5.1 1505/Body/Satellite-SR 1 PC 29-101-04 

5 SW-5.1 1505/Body/Satellite-Center 1 PC 29-101-05 

6 Loud speaker-front, 3” 4 ohm 6W 2 PC 29-100-01 

7 Loud speaker-surround, 3” 4 ohm 6W 2 PC 29-100-02 

8 Loud speaker, 3” 4 ohm 6W 1 PC 29-100-03 

9 Rubber pad(satellite), SW-5.1 3005 20 PC 26-100-01 

10 SW-5.1 1505/Body/Woofer-120V-US 

29-101-06 

11 SW-5.1 1505/Body/Woofer-230V-EU 29-101-07 

1 PC 

12 SW-5.1 1505/Body/Woofer-240V-AU 29-101-08 

13 SW-5.1 1505/Body/Woofer-240V-UK 29-101-09 

14 Loud speaker, 4” 4 ohm 20W 1 PC 29-100-04 

15 Rubber pad(woofer), SW-5.1 1505 4 PC 29-100-05 

16 IC, STA540SA 2 PC E1065-48 

17 IC, UTC4558 3 PC 25-100-05 

18 IC, PT2325-D 1 PC E1065-49 

19 IC, L7809CV 1 PC E1065-50 

20 VR1, SW-5.1 1505 1 PC E1075-21 

21 Transformer, 120V:12VAC & 2.5A 

E1074-145 

22 Transformer, 230V:12VAC & 2.5A 1 PC E1074-146 

23 Transformer, 240V:12VAC & 2.5A E1074-147 

24 PCBA, SW-5.1 1505 1 PC 29-101-10 

25 

Audio cable, 3.5mm (green) to 

RCA jack (red/white) 

1 PC E1066-31 



26 

27 

Audio cable, 3.5mm (orange) to 


Audio cable, 3.5mm (blue) to 


1 PC E1066-32 

1 PC E1066-33 

28 3 pin cable, SW-5.1 3005 1 PC E1066-47 

29 Wired Control 1 Set 29-101-11 

30 S/N Label ( on woofer & Gift Box ) 2 PC 29-102-01 

31 Manual, SW-5.1 1505 1 PC 12030396100-A 

32 Cushion, SW-5.1 1505 1 Set 29-102-02 

33 Gift Box, SW-5.1 1505 1 PC 12000467100-A 

34 Carton, SW-5.1 1505 0.5 PC 12100364100-A 



Chapter 6. Schematic Diagram 



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.

SW-5.1 1505 Service Guide .pdf - Genius

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