Download Genius Speaker System 31730952100 User's Manual

Service Guide
SP-i160
SERVICE GUIDE
KYESYSTEMS CORP.
SP-i160
Version : 1.0
Page 1 of 14
Service Guide
SP-i160
Version : 1.0
Revision History
Version
Date
1.0
15/01/2010
Version : 1.0
Change
Page 2 of 14
Service Guide
SP-i160
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
No sound (Line in jack no function) …………..…7
1.2.2
Power LED (indicator) no light……...………....…8
1.2.3
Li-ION battery can’t charge.…..….…………….8
Chapter 2. Specifications ………………………………………………………….9
Chapter 3. Block Diagram ……………………………………………………….10
Chapter 4. Exploded View ……………………………………………………….11
Chapter 5. Part List ………………………………………………………………12
Chapter 6. Schematic Diagram …………………………………………………..13
Chapter 7. Important Notes ………………………………………………………14
7.1 Packing Requirement for Sending the PCB Assembly by Post …..14
7.2 Short of Spare Parts while Repairing a Speaker System …………14
Version : 1.0
Page 3 of 14
Service Guide
SP-i160
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 .
Version : 1.0
Page 4 of 14
Service Guide
SP-i160
Chapter 1. How to Handle Defective Returns
1.1 Overview
Receiving Defective speakers from
Customers
Function NG
__ __
Analyzing possible malfunction
causes
Function NG
Deciding & proceeding the
rectification methods
Function OK
Replace necessary defective parts
Function OK
Return the speakers with proper
repackaging to customers
Version : 1.0
Page 5 of 14
Service Guide
SP-i160
1.2 Problems
Item
Problem Description
1.2.1
No sound (Line in jack no function)
1.2.2
Power LED (indicator) no light
1.2.3
Li-ION battery can’t charge
Version : 1.0
Page 6 of 14
Service Guide
SP-i160
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
One or more channels no sound (Line in jack no function)
Problem
No sound
Analyzer and
Identify the Causes
Solutions
Broken or short circuit
Defective U1,
U4
Check solder points on
PCB
Check and Replace
defective IC
Version : 1.0
Page 7 of 14
Speaker cable
dis-connect , JACK1 or
JACK2 defective or
speaker damaged
Re-connect speaker
cable or replace
defective speaker(s)
Service Guide
1.2.2
SP-i160
Power LED (indicator) no light
Power LED (indicator) no light
Problem
Analyzer and
Identify the Causes
Power switch or LED
Defective
defective
J1
Re-solder or replace
defective component(s)
Solutions
1.2.3
The Li-ION Battery can’t charge
The Li-ION battery can’t
charge
Problem
Analyzer and
Identify the Causes
Solutions
U2 Battery
Broken or short circuit
Check solder points on PCB
Check and Replace defective
components
Version : 1.0
Page 8 of 14
Service Guide
Chapter 2.
SP-i160
Specifications
NO. Description
Unit
Specifications
1
Out Power at THD 10%
W
≧ 1.8
2
Sensitivity
mV
600 ± 50
3
Freq. Response (1KHz -3dB)
Hz
180~20K ± 10%
4
Separation
dB
≧ 40
5
S/N ratio
dB
≧ 80
6
Hum & Noise
mV
≦ 2
(Vol.: max)
Version : 1.0
Page 9 of 14
Service Guide
Chapter 3.
—
►
Audio
SP-i160
Block Diagram
Tone
Volume
Control
Control
—
►
L.CH Speaker
A
i
Power
Ac in
Conditioner
Version : 1.0
Page 10 of 14
Service Guide
Chapter 4.
SP-i160
Exploded View
Version : 1.0
Page 11 of 14
Service Guide
Chapter 5.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
SP-i160
Part List
DESCRIPTION
Qty
UNIT
1
PC
Loud Speaker 1.25" 4 ohm 1~2W
1
PC
FSA510112-1402
Rubber Pad(Φ4.8 X 2.3T), SP-i160
3
PC
15400009100
PCBA, SP-i160
1
PC
ASL507003-0026
IC, JRC NJM2761
1
PC
IC, T1 TPA2031D1
1
Set
IC, LN,LN2054
1
PC
BATTERY, SP-i160
1
PC
FBY508037-0003
FANNEL BAG SP-i160
1
PC
12290076100
S/N LABEL SP-i160
2
PC
12061017100
1
PC
INNER TRAY SP-i160
1
PC
12150227100
PET BOX, SP-i160
1
PC
12140001100
Anti-fake Label ( on Gift Box )
1
PC
12061993100
1/50
PC
12100465100
RS,ASM,SP-I160,HOST,BLACK
RS,ASM,SP-I160,HOST,WHITE
31730952100
CARD SP-i160 / B
CARD SP-i160 / W
Carton, SP-i160
Version : 1.0
Part No.
31730952101
RCI203101-0001
12020186100
Page 12 of 14
12020187100
Service Guide
Chapter 6.
SP-i160
Schematic Diagram
Pls refer to next page
Version : 1.0
Page 13 of 14
1
2
4
3
D
D
J1
L1
BEAD120 5V
R9
BEAD120
R10
2K
BAT ON
Q1
NC
C3
100uF
C16
151
C2
104
4
C13
151
Vcc
R12
2K
LD1
RED
CHRG
GND
1
2
C
LD2
BLUE
U2
LN2054
Vcc
5
1
2
3
4
3
BAT
5
PROG
C14
NC
R11
4.7K
BT1
BATTERY
U1
TPA2031D1
R6
100K
Shut_DN
B1
C1
10uF
223
224
105
5
R5
C4
V+
Out1
IN1
INT
C23
224
473
R8
8K2
GND
C22
224
105
IN+
ShutDN
VoGND
104
C3
So+
L2
A3
BEAD120
C8
S1
C9
270P
B3
C10
240k 471
R4
68k
C
270P
SPK
270P
L3
BEAD120
So-
68k
C6
473
GND
OUT2
IN2
C20
Vo+
10uF
Vcc
R3
240k
C7
471
B
10
9
8
SW
Sense
7
6
R2
1k
C5
IN-
B2
C12
R1
U4
IC-NJM2761
R7
3.6k
C2
PVDD
C11
A2
224
Vref
A1
1
C21
3
C17
2
C18
4
C19
B
C1
Vcc
GNDGND
VDD
GND
CN4P-USB
S1
SW-SPDT
USB ON
GND
R13
8K2
Title
A
Size
A4
Date:
File:
1
2
3
A
Number
Revision
SP-i160
21-Jan-2010
E:\MODEL INFO\KYE\F4\Mr Pai.ddb
VER090820
Sheet of
Drawn By:
4
Service Guide
Chapter 7.
SP-i160
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.
Version : 1.0
Page 14 of 14