KYE Systems Corp. Genius SP-i300 User manual

Service Guide Model No : SP-i300
SERVICE GUIDE
KYESYSTEMS CORP.

Service Guide Model No : SP-i300
Revision Histor
Version Date Change
1.0
05/10/2010 First Release
Page 2/15

Service Guide Model No : SP-i300
Table of Contents
Revision History …………………………………………………………………….2
Table of Contents ……………….……………………………………………………
Getting Started ……………………………………………………………………….4
Conventions Used in this Guide ……………………….…..………………....4
Safety Precautions …….……………………………………………………..4
Chapter 1. How to Handle Defective Returns……………………………………..5
1.1 Speaker no sound
1.2 LED no light
1. Power/Volume Knob no function
Chapter 2. Specifications ………………………………………………………….10
Chapter . Block Diagram ……………………………………………………….11
Chapter 4. Exploded View …………………………………………………12 & 1
Chapter 5. Part List ………………………………………………………………14
Chapter 6. Schematic Diagram …………………………………………………..15
Chapter 7. Important Notes ………………………………………………………16
7.1 Packing Requirement for Sending the PCB Assembly by Post …..16
7.2 Short of Spare Parts while Repairing a Speaker System …………16
Page /15

Service Guide Model No : SP-i300
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 .
Page 4/15

Service Guide Model No : SP-i300
Chapter 1. How to Handle Defective Returns
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
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Service Guide Model No : SP-i300
Problems
Item Problem Description
1.1 Speaker no sound
1.2 LED no light
1. Power/Function Knob no function
1.4 USB no function
Page 6/15

Service Guide Model No : SP-i300
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.
1.1 Speaker no sound (Line in jack no function)
Problem
Analyze
and
Identify
Cause
Solution
Speaker no sound
Component cold
solder or Short
Circuit
Defective U2, U5,
U9
Speaker cable disconnect,
USBJack1, J2 defective
or speaker damaged
Check solder
point on PCBA
Check and
Replace defective
IC
Reconnect speaker cable or
replace defective speaker
driver and component
Page 7/15

Service Guide Model No : SP-i300
1.2 LED no light
Problem
Analyzer and
Identify the Causes
Solutions
1. Power/Function Knob no function
Problem
Analyzer and
Identify the Causes
Solutions
Power LED no light
Component cold
solder or Short
Circuit
Defective U1, U2,
U4, U6, U7 or Y1
BT1 or LED1, LED2
defective
Check solder
point on PCBA
Check and
Replace defective
IC
or
Crystal
Replace defective LED or
Battery
Page 8/15
Power/Function Knob no
function
Component cold
solder or Short
Circuit
Defective U2 or
Y1
VR-SW J1 or SW1 ,SW2,
SW , SW4 defective
Check solder
point on PCBA
Check and
Replace defective
IC
or Crystal
Replace defective VR or
Tact SW

Service Guide Model No : SP-i300
1. USB no function
Problem
Analyzer and
Identify the Causes
Solution
USB no function
Component cold
solder or Short
Circuit
U2, U or CON1 efective
Check solder
point on PCBA
Check and Replace
defective U2, U or CON1
Page 9/15

Service Guide Model No : SP-i300
Chapter 2. Specifications
NO. Description Unit Specifications
1 Out Power at THD 10% W
≧1.5
2 Sensitivit mV
600± 60
3 Freq. Response (1KHz -3dB) Hz 120~20K ± 10%
4 S/N ratio dB
≧
≧≧
≧ 70
5 Hum & Noise (Vol.: max) mV
≦
≦≦
≦ 2
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Service Guide Model No : SP-i300
Chapter 3 Block Diagram
PRE-Amplifier
IC CM8608
Mini USB and
.5mm Phone
jack
In
Power Sw, &
Volume
control
Audio
Amplifier IC
BA2010
Speaker out
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Battery Charge
.5mm Phone
jack Pre-out
DSP IC
AU7840
USB In EEPROM

Service Guide Model No : SP-i300
Chapter 4. Exploded View
Page 12/15

Service Guide Model No : SP-i300
Chapter 5. Part List
No
DESCRIPTION Qt UNIT Part No.
1
IC SMD EEPROM SOP-8 FT24C02A-5SR-T
1 U1
2 IC SMD decoder LQFP48 AU7840 1 U2
IC SMD REG SOT89 5.0V +-2% AP2201 1 U
4 IC SMD REG 1.8V SOT2 SU 01A18L 1 U4
5 IC SMD Driver SOP-8 CM8608IS 1 U5
6 IC SMD REG . V SOT2 SU 01A L 1 U6
7
IC SMD LINEAR Charger SOT23-5L LN4054 1 U7
8 IC SMD OP CSP8 BA2010 1 U9
9 SPK UNIT
1
FSA510215-140
0
10 WIRE A'SSY 1
ASW501001-021
7
Page 1 /15

Service Guide Model No : SP-i300
Chapter 6. Schematic Diagram
Pls refer to The Attachment
Page 14/15

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
USB
LDO
AU7840-RST
AUXIN
AU7840
EEPROM
LQFP48
POWER
KEY
VOL Manage
<Doc> <RevCode>
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12Monday, September 20, 2010
Title
Size Document Number Rev
Date: Sheet of
GND
RST
GND
LED2
GND
VDD33
AD
VDD33
VDD18
GND
GND
SDA
VREF3
AUXL-R
VDD18
SCL
HP-L
LED1
GPIOA4
AVDD33
AVDD33
AVDD18
HP-R
DM
DP GPB2
RST
LINE-L-R AUXL-R
SDA
SCL
100K
100K
HP-L
HP-R
L+R
GPIOA7
VDD33
AUXEN
STABY GPB5 GPB4 GPB3
AVSS
3.4V
检测
GPIOA7
L+R
L-L
R-R
STABY
LOUT
ROUT
CHSW
CHSW
DM
DP
VREF1
L-L LOUT
VREF2
R-R
ROUT
VREF
GPB5
GPB4
GPB3
GPB2
AD
GPIOA4
LED1
LED2
LINE-L-R
AUXEN
VREF1
VREF2VREF
USBVCC5V
USBVCC5V
VCC
VCC VDD18
VDD33VCC
VDD33
VDD33
VDD33
AVDD33
AVDD18
AVDD33 VDD33
AVDD18
VREF3
VDD33
VDD5V
VDD33
VDD5V VCC
DD5V
VDD18
DD5V
VDD33
AVDD33
AVDD33
R28 4.7R
D4
TVS
R32 10K
C27
104
R12 4.7K
C33 105
Y1 12M
C6
15P
R21 1K
C44 2.2UF
C31
15P
D2 IN5819
C57
104
L9100M600R
C53 100P
C19
2.2UF
R5 1K
SW1 模式
R9
15K
C50
2.2UF
C45 470PF
R11 4.7K
C41 105
C56
22P
C10 22P
U2
AU7840
22
7
11
5
6
12
8
9
10
1
2
3
4
13 14 15
30
29
28
27
26
25
24 23 16 17 18
38
19 20 21
37
36
35
34
33
32
31
41 40 39 42 43 44 45 46 47 48
GPIO_A5
ADC_CH1
VDD33
AVDD33
REXT100K
XIN
AVDD18
USB_DM
USB_DP
DAC_VSS
HPOUTL
DAC_VDD33
DAC_VREF
XOUT GPIO_A0 GPIO_A1
GPIO_C1
GPIO_C0
SD_DATO
SD_CMD
SD_CLK
GPIO_B2
GPIO_A7 GPIO_A6 GPIO_A2 GPIO_A3 VDD18
GPIO_B4
VSS RESET_N GPIO_A4
GPIO_B3
GPIO_D0
VDD33
GPIO_C3
GPIO_C2
VDD18
VSS
GPIO_B7 GPIO_B6 GPIO_B5
GPIO_D1
MOD1 MOD0
TEST
AUXIN_R
AUXIN_L
HPOUTR
R55 10K
D1
LED BI-COLOUR
C34 100P
R36 4.7K
C59
22P
R16
100K
CON1
CON_4
2
1
3
4
D-
VBUS
D+
GND
SW2 播放暂停
C7
470UF
C48 104
R56 10K
C64
22P
L10 100M600R
R44
1K
C51
104
C13
100P
R45 NC
R38 4.7K
L3
100M600R
C36 105
U1
FT24C02
1
2
3
4 5
6
7
8
A0
A1
NC
GND SDA
SCL
WP
VCC
L7 100M600R
C26
104
SW3 上一曲
C22 100P
C47
104
C20
104
U3 AP2201
3 2
1
IN OUT
GND
C32
15P
C24
22P
C40
22P
L11 100M600R
R41 4.7K
USBJACK1
USB-mini B Type
1
2
3
4
5
8 7 6
9
VCC--
DM--
DP--
NC--
GND--
G GG
G
L8100M600R
C14 105
SW4 下一曲
R7 22R
C4 105
R3 4.7K
C2 22P
L2
100M600R
R37
0R
R35 2.2K
R17 1MR
C46
470UF
R13 10K
R6 4.7K
R42
NC
BT1
BATTERY
C35 105
C29 150P
U4 SU3301-1.8V
3 1
2
IN OUT
GND
D5
TVS
C17
2.2UF
C12
100P
L4
CD34@47UH
C60
22P
C3 105
C52 105
C49
104
U7 AP5054
3 4
52 1
BAT VCC
PROG G CHG
C38
2.2UF
C16
105
R34 10K
R10
15K
R27 1K
R8 4.7K
J1
VR-SW
1 2
3 4
5
VIN VOUT
SIN GND
OUT
L5100M600R R22 1K
C61
22P
C9 22P
R20
24K
R24 100K
C58
104
R29 1K
C63 22P
R25
4.7K
R40
15K
C21 105
R2 470R
R4 22R
L13 100M600R
L1
100M600R
U6 SU3301-3.3V
3 1
2
IN OUT
GND
R31 10K
R1 30k
C62
22P
R14
22K
Q1
2N3904
R30 NC
C43 22P
R18 2.2K
C18
104
R23 100K
C25
470UF
C1 22P
C15
2.2UF
C55
104
R43 1K
C42 105
C8
22P
R26
4.7K
R46
33K
C28
104
C11
22P
C5 104
U5
CM8608
1 2 3 45
6 7 8OUTA
INAN
INAP
VSSINBP
INBN OUTB VDD
R33 4.7K
Q2 NC
C23
2.2UF
L6100M600R
C37
104
R19 4.7K
C30 105
C54
2.2UF
ROUT
LOUT
STABY

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
AMP
原来设计的是肖特基二级管 5819 ， 0805 100M/600R 现样板已经用 的 的磁珠替代
<Doc> <RevCode>
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22Monday, September 20, 2010
Title
Size Document Number Rev
Date: Sheet of
ROUT
ROUT
LOUT
STABY
STABY
LOUT
STB
VCC
OPVDDVCC
VDD33
OPVDD
C74
102
C76 20P
R54
100K
J2
PHONEJACK STEREO SW
1
2
3
4
5
C72 470PF
C67 104
C77
22P
C65
470UF
R52
4.7K
C68 104
C78 104
C71
102
C69
102
LS1
SPEAKER
L16
100M
U9
BA2010
1
2
3
4
5
6
7
8 9
INP
VDD
INN
SD_B
OUTP
GND
OUTN
GND
PVDD
C66
22P
R4920K
R53 1K
L14
100M600R
R51240K
C70 104
C73 104
L15
100M
C75 470PF
D3 600M100R
R4720K
Q3
2N3904
L17 100M600R
R50
47K
R48240K
ROUT
LOUT
STABY

Service Guide Model No : SP-i300
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.
Page 15/15