KYE Systems Corp. Genius SP-S115 User manual

Service Guide SP-S115
SERVICE GUIDE
KYE SYSTEM CORP
Version 1.0 Page 1 of 19

Service Guide SP-S115
Revision History
Version Date Change
1.0 25/06/2010
Version 1.0 Page 2 of 19

Service Guide SP-S115
Revision History………………………………………………………………….2
Table of contents……………………………………………………………...…3
Getting Start…………………………………………………….………………...4
Conventions Used in this Guide…………………………………………….…4
Safety Precautions………………………………………………………………4
Chapter 1. How to Handle Defective Returns……………………………….5
1.2 Problem………………………………………………………………………6
1.2.1 No power，LED （indicator）unlighted……………………………….7
1.2.2 No sound…………………………………………………………….…….8
1.2.3 Noise………………….….……….……….……….……….……….….…9
1.2.4 LED indicators no light when working….…..….……….……….….…10
1.2.5 Volume switch no use…………………………………………….…..…11
1.2.6 Headphone jack no use……………….…………….……………….….12
Chapter 2. Specification…………………………………………………..……13
Chapter 3. Block diagram…………………………………………..………….14
Chapter 4. Exploded view………………………………………………………15
Active speaker………………………………………………………….……….15
Passive speaker………………………………………..…….…………………16
Chapter 5. Part list…………………………………… …………….…………...17
Active speaker…………………………………………………….…….…….. 17
Passive speaker……………………………………………………………...…17
Chapter 6 Important notes………………………………………………………18
Chapter 7 Schematic diagram………………………………………………….29
Version 1.0 Page 3 of 19
Table
of Contents

Service Guide SP-S115
Getting Started
Conventions Used in the 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 handing 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.
Donotallowanythingtodrop 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.
Do not perform any maintenance with wet hand.
Preventforeignsubstance,such as water, other liquids or chemical, from entering
the speakers while performing maintenance procedures on the speakers.
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Service Guide SP-S115
Chapter 1. How to Handle Defective Returns
1.1 Overview
Function NG Function OK
FunctionNG
FunctionOK
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Receiving Defective speaker from customers
Verifying problems
Proceeding
Necessary tests
Verifying problems
Proceeding
Necessary tests
Analyzing possible
Malfunction cause
Deciding & proceeding the
Rectification methods
Replace necessary
Defective parts
Return the speakers with proper
repacking to customers

Service Guide SP-S115
1.2 Problems
Item Problem Description
1.2.1 No power，LED （indicator）unlighted
1.2.2 No sound
1.2.3 Noise
1.2.4 LED indicators no light when working
1.2.5 Volume switch no use
1.2.6 Headphone jack no use
Version1.0 Page6of19

Service Guide SP-S115
*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 No power，LED （indicator）unlighted
Problem
Analyze
and identify
the causes
Solutions
Version 1.0 Page 7 of 19
Repair or replace
Dry-soldered secondary
wire of transformer
Defective or
damaged D1-D1
diode
resolder or replace
No power，LED （indicator）unlighted
Power switch poor
connected or defective
Repair or replace

Service Guide SP-S115
1.2.2 no sound
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 8 of 19
PCB damaged,
dry-soldered or
short-circuited
Power supply for IC
TDA2822 abnormal or
damaged
No sound
Or VR1 damaged
Repair or replace
Repair or replace Repair, resolder or
replace

Service Guide SP-S115
1.2.3. Noise
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 9 of 19
Noise
1. Filter capacitor not work,
dry-soldered, or diode damaged
2. Or Power supply for IC
TDA2822 abnormal
3. Or PCB broken or
dry-soldered
Or Vibration from too
long lead wire of driver
units; or damaged/
short-circuited driver
units;
Or VR poor connected;
Repair Check and replace Repair or replace

Service Guide SP-S115
1.2.4. LED indicators no light when working
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 10 of 19
LED indicators no li
g
ht when workin
g
1. LED1 damaged or PCB copper foil broken
2. LED1 , R7 defective or dry-soldered
Check and replace

Service Guide SP-S115
1.2.5. Volume switch no use
Problem
Analyze and
identify the
causes
Solutions
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Volume switch no use
1. PCB dry-soldered, or broken
2. VR1 defective
Check and replace

Service Guide SP-S115
1.2.6. Headphone jack no use
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 12 of 19
Head
p
hone
j
ack no use
Poor connection in PS1 JACK
Check and replace

Service Guide SP-S115
量测值
NO DESCRIPTION UNIT
R L
LIMIT
1 RATED OUTPUT POWER @THD 10% W 0.45 0.45 ≧0.4
2 SENSITIVITY (1KHz) @RATED O/P POWER m V 370 360 380±40
3 SENSITIVITY (1KHz) @0.25W O/P POWER m V 250 250 250±30
4 MAX INPUT LEVEL@1% THD m V 280 280 280±30
5 DISTOPTION@1kHz 0.25W
OUT % 2.4 2.4 ≦3
6 FREQUENCY RESPONSE(1KHz -3DB )
LOW Hz 150 150 150±20
7 FREQUENCY RESPONSE(1KHz -3DB ) HI KHz 65 65 65±10
8 S/N@RATED O/P POWER d B 60 60 ≧60
9 CHANNEL UNBALANCE @REF O/P POWER d B 0.4 0.3 ≦1
10 CHANNEL SEPARATION(ONE CHANNELIN;OTHER CHANNEL INPUT
SHORTING d B 48 50 ≧40
11 HUM NOISE (VOLUME MAX;INPUT
SHORTING) m V 0.5 0.5 ≦1
12 HUM NOISE (VOLUME MIN INPUT
SHORTING) m V 1.5 1.5 ≦2
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Chapter 2. Specifications

Service Guide SP-S115
Version 1.0 Page 14 of 19
Chapter 3 Block diagram

Service Guide SP-S115
Active speaker
Version 1.0 Page 15 of 19
Chapter 4 Exploded view

Service Guide SP-S115
Passive speaker
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Chapter 4 Exploded view

Service Guide SP-S115
Active speaker
serial NO Description Part No.
1 S10l metal grill EP61000140
2 SP-101 front cover EP40310351
3 A-103-1 driver unit EP16020071
4 3*5TB screw EP24010096
5 SP-101 back cover EP45010098
6 screw,3*8PA, EP24100067
7 screw,3*12PB EP24110021
8 cable pull-relief EP41610113
9 screw,3*8PWA EP24140031
10 PCBA, SP-S115-ALSO-1 EP1P110008AI
11 press button, SP-S115 EP1C020048
12 rotating knob, SP-S115 EP21100081
13 IC,TDA2822 EP1C010069
Passive speaker
Serial NO Description Part No.
1 S10l metal grill EP61000140
2 front cover, Y050 EP40410158
3 driver unit, A-103-1 EP16020071
5 back cover, Y032 EP40610391
6 screw, 3*8PA EP24100067
7 screw, 3*12PB EP24110021
8 screw, 3*5TB EP24010096
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Cha
p
ter 5 Part list

Service Guide SP-S115
6.1 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
the PCB assembly by post, in that it would avoid unnecessarily
lost or damage.
6.2 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 from one
Speaker system, so that you may have the as many speaker
systems
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Cha
p
ter 6. Im
p
ortant Notes

Service Guide SP-S115
Version 1.0 Page 19of 19
Cha
p
ter 7. Schematic dia
g
ram