KYE Systems Corp. Genius SP-N200 User manual

Service Guide SP-N200
Version : 1.0 Page 1 of 15
SERVICE GUIDE
KYE SYSTEMS CORP.
SP-N200

Service Guide SP-N200
Version : 1.0 Page 2 of 15
Version : 1.0
Revision History
Version Date Change
1.0 09/20/2007

Service Guide SP-N200
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 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

Service Guide SP-N200
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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 .

Service Guide SP-N200
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Chapter 1. How to Handle Defective Returns
1.1 Overview
Receiving Defective speaker form customers
Analyzing possible
malfunction causes
Deciding & proceeding the
rectification methods
Replace necessary
defective
p
arts
Return the speakers with proper
re
p
acka
g
in
g
to customers
Verifying problems
proceeding
necessar
y
tests
Proceeding tests to
verify if the speaker is
functionin
g
normall
y
Function OK
Function NG
Function OKFunction NG

Service Guide SP-N200
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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 no function

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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 IC
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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1.2.2 Power LED (indicator) no light
Problem
Solutions
1.2.3 Volume no function
Problem
Solutions
Power LED (indicator) no light
Power switch or LED defective
Defective SW, R17,
R20,T2,D1,D2,D3,D4
Ac cord of transformer
disconnected or defective
Re-solder or replace
defective component(s)
Analyzer and
Identify the Causes
Volume no function
Broken or short circuit Defective R1, ,R2, R7,R8,R9,
R10,VR,C7,C8,IC
Check solder points on PCB
Analyzer and
Identify the Causes
Check and Replace defective
components

Service Guide SP-N200
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Chapter 2. Specifications
NO. Description Unit Specifications
1 Out Power at THD 10% W >
>
>
2.8
2 Sensitivity mV 460 ±60
3 Freq. Response (Ref:-3dB) Hz 50Hz ~ 20KHz
4 Separation dB 40
BdoitarN/S5 45
6 Hum & Noise (Vol.: max) mV < 5

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Chapter 3. Block Diagram
AUDIO IN
Volume
Increase Power
Amplifier
R.CH Speaker
AC IN
L.CH Speaker
Volume
Decrease
Power
Conditioner

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Chapter 4. Exploded View
Host
Button
PCB
Speaker
Net frame Front panel
PCB
Rear shell

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Satellite
Speaker
Net frame front panel
Tran sfor mer
Rear shell
Buckle

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Chapter 5. Part List
No. DESCRIPTION Qty UNIT Part No.
1 SP-N200/BODY-120V-US 220122030119
10112203010919
101122030119
2 SP-N200/BODY-230V-EU(NO PMOP)
3 SP-N200/BODY-230V-EU(WO PMOP)
20140200050002 LOUD SPEAKER 2" 4 OHM 5W4
420500380309
301122030019
403901420209
RUBBER PAD, SP-N200
Transformer,230V/50HZ/0.5V/0.7A
Transformer,120V/60HZ/0.5V/0.7A
GIFT BOX,SP-N200/230V-EU/US(NO PMOP)
GIFT BOX,SP-N200/230V-EU(WO PMOP)
5
6 PCBA SP-N200
7 IC,TA8227 DIP14
412001320209CP1
1
1
1
1
1
1
1
8
11
12
412001320309CP
CP
CP
CP
CP
CP
CP
CP
CP
CP
CP
CP
1
1
1
1
1
9
10 S/N LABEL(ON HOST/GIFT BOX)
1 PC
462700370089
462212203009
462212203019
462705090179
13 ROUND YELLOW TYPE LABEL(ON GIFT BOX)
14 CARTON,SP-N200/US
1 PC
462112203009
15 CARTON,SP-N200/EU 462112203009

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Chapter 6. Schematic Diagram

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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.