KYE Systems Corp. Genius SW-M2.1 350 User manual

Service Guide Model No : SW-M2.1 350
SERVICE GUIDE
KYESYSTEMS CORP.
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Service Guide Model No : SW-M2.1 350
Revi ion Hi tory
Version Date Change
1.0 13/04/2010 First Release
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Service Guide Model No : SW-M2.1 350
Table of Content
Revision History …………………………………………………………………….2
Ta le 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 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Volume no function
Chapter 2. Specifications ………………………………………………………….10
Chapter 3. Block Diagram ……………………………………………………….11
Chapter 4. Exploded View …………………………………………………12 & 13
Chapter 5. Part List ………………………………………………………………14
Chapter 6. Schematic Diagram ……………………… …………………..15&17
Chapter 7. Important Notes ………………………………………………………18
7.1 Packing Requirement for Sending the PCB Assem ly y Post …..18
7.2 Short of Spare Parts while Repairing a Speaker System …………18
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Service Guide Model No : SW-M2.1 350
Getting Started
Conventions Used in this Guide
Pay Special Attention : Instructions that are important to remem er and
may prevent mistakes .
Caution : Information that, if not followed, may result in damage to the
product .
Safety Precautions
The following precautions should e o served in handling the speaker
Descri ed in this guide :
Place the speakers on a flat, level and sta le surface.
Do not place the speakers in environments su ject to mist, smoke,
vi ration, 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 su woofer 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 efore performing
any maintenance on the speakers .
Do not perform any maintenance with wet hand .
Prevent foreign su stances, such as water, other liquids or chemicals ,
From entering the speakers while performing maintenance procedures
on the speakers .
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Service Guide Model No : SW-M2.1 350
Chapter 1. How to Handle Defective Return
Overview
Receiving Defective speakers from
Customers
Function NG
__ __
Analyzing possi le 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 : SW-M2.1 350
Pro lems
Item Pro lem Description
1.1 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Volume no function
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Service Guide Model No : SW-M2.1 350
Attention
Please follow the num ered sequence marked within parenthesis given in individual Flow
chat, in that this is the est-recommended sequence to rectify the pro lems.
1.1 One or more channels no sound (Line in jack no function)
Pro lem
Analyze
and
Identify
Cause
Solution
Speaker no sound
Component cold
solder or Short
Circuit
Defective IC1 or
IC2
Speaker ca le disconnect,
Jack1 or J2 defective or
speaker damaged
Check solder
point on PCBA
Check and
Replace defective
IC
Reconnect speaker ca le or
replace defective speaker
driver and component
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Service Guide Model No : SW-M2.1 350
1.2 Power LED no light
Pro lem
Analyzer and
Identify the Causes
Solutions
1.3 Headphone no sound
Pro lem
Analyzer and
Identify the Causes
Solution
Power LED no light
Component cold
solder or Short
Circuit
Defective
U1,U2,U3 or F1
Power Switch or LED
defective
Check solder
point on PCBA
Check and
Replace defective
IC or Fuse
Replace defective Power
Switch or LED
Headphone no sound
Component cold
solder or Short
Circuit
J1 Phone jack defective
Check solder
point on PCBA
Replace defective J1 Phone
jack
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Service Guide Model No : SW-M2.1 350
1.4 Bass/Volume no function
Pro lem
Analyzer and
Identify the Causes
Solution
Bass/Volume no function
Component cold
solder or Short
Circuit
VR1 or VR13 defective
Check solder
point on PCBA
Replace defective VR1 or
VR13
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Service Guide Model No : SW-M2.1 350
Chapter 2. Specification
NO. De cription Unit Specification
1 Out Power at THD 10%(Sat) W
≧2
2 Out Power at THD 10%(Sub) W
≧6
3 Sen itivity(SAT) mV
450± 50
4 Sen itivity(Sub) mV
130± 50
5 Freq. Re pon e (1KHz -3dB) Hz 20~20K ± 10%
6 Separation dB
≧
≧≧
≧ 40
7 S/N ratio dB
≧
≧≧
≧ 70
8 Hum & Noi e (Vol.: max) mV
≦
≦≦
≦ 2
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Service Guide Model No : SW-M2.1 350
Chapter 3 Block Diagram
Audio in
LCH & RCH
Headphone
output
LCH & RCH
Power Sw, Tone &
Volume control
Audio
Amplifier IC
TEA2025B
Audio
Amplifier IC
TEA2025B
LCH
RCH
Su woofer
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Service Guide Model No : SW-M2.1 350
Chapter 4. Exploded View
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Service Guide Model No : SW-M2.1 350
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Service Guide Model No : SW-M2.1 350
Chapter 5. Part Li t
No
DESCRIPTION Qty UNIT Part No.
1
DH321 DIP8 IC
1 U1
2 AS431L TO92 IC 1 U2
3 BPC817 IC 1 U3
4 YJ-KB2511A Transformer 1 T1
5 KBP206 Rectifier 1 D1
6
TEA2025B IC
2 IC1,IC2
7 POWER CORD 2P 1
VPE003012-004
0
8 SPK UNIT 1 FSI520332-3800
9 SPK UNIT 1 FSA512002-240
0
10 RCA CABLE 1
VMC700002-00
10
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Service Guide Model No : SW-M2.1 350
Chapter 6. Schematic Diagram
Pls refer to Next Pages :
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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VCC
VCC
GND
SUB
GND
R-IN
GND
L-IN
GND
GND
VCC
SUB
R-IN
L-IN
VCC
GND
POWER IN
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YJ-SW-M2.1-350-AMP/YJ-SW-M2.1-350-VR
A2
1 2Wednesday,March 17, 2010
Title
Size DocumentNumber Rev
Date: Sheet of
VCC
VCC
VCC
R12
4R7
C1
102J/100V
C9
0.1UF/50V
R1
300R
C40
104P
JACK1
PHONOJACK
1
2
3
4
5
C22
103J/100V
+
C4
220UF/16V
+
C15
100UF/16V
R2
300R
CN7 CON3
1 2 3
VR1-A
B50K
C39
104P
CN6
8 HEADER
1
2
3
4
5
6
7
8
J7
CN2
1 2
IC1 TEA2025B
1 2 3 4 5 6 7 89
10 11 12 13 14 15 16 1
2 3 4 5 6 7 89
10 11 12 13 14 15 16
R30
47K
D1
LED
R26
100K
R4
NC
+
C18
100UF/16V
C25
102J/100V
+
C16
0.22UF/50V
R5
12K
R7
10K
+
C19
220UF/16V
R10
4.7K
R26
4R7
R29
47K
+
C3
100UF/16V
CN3
1
2
VR1-B
B50K
CN5 CON3
1 2 3
R25
4R7
R23
1OOK
R3
5.6K
C23
102J/100V
+
C38
470UF/16V
R6
OR
+
C12
1UF/50V
C6
102J/100V
+
C11
100UF/16V
VR13
B20K
R9
4.7K
IC2 TEA2025B
1 2 3 4 5 6 7 89
10 11 12 13 14 15 16 1
2 3 4 5 6 7 89
10 11 12 13 14 15 16
+
C14
0.22UF/50V
+
C5
100UF/16V
C21
104P
+
C24
100UF/16V
CN4
8 HEADER
1
2
3
4
5
6
7
8
R31
1K
J1
PHONOJACK
1
2
3
4
5
C7
104P
R24
1OOK
+
C26
470UF/16V
+
C13
100UF/16V
J2
PHONOJACK
1
2
3
4
5
R33
1K
R11
10K
C2
103J/100V
+
C10
100UF/16V
R8
4R7
+
C20
100UF/16V
VR1-C
SW
+
C17
100UF/16V
C8
0.1UF/50V
R32
1K
R25
100K
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Model No: SW-M2.1 350

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
POWER OUT
<Doc> 1.0
YJ-SW-M2.1-350-SMPS
A2
2 2Wednesday,March 17, 2010
Title
Size DocumentNumber Rev
Date: Sheet of
ACINACIN
+
C28
1000UF/16V
C34 222
+
C32
47UF/16V
R18 680
L1
WLD-UU9893(36mH)
1
2
3
4
R21
1K
U1
DH321-DIP8
1 2 3 4 5
6 7 8
1 2 3 4 5
6 7 8
C31
333
U3
BPC-817
12 54
D2
FR107
L2
GT061787
ZD1
12V
+
C35
1000UF/16V
C36
104
D3
FR107
D4
FR305 200V
Y1
F222M
U2AS431L
1
2 3
C29
104
R19
4.7R
C33
104
- +
D1
KBP206
1
2
3
4
R14
3.3K
R20 100
CN1
1
2
+
C27
22UF/400VC37
0.1UF/275V
R15
33K
C30
104P
R13
10K
T1
YJ-KB-2511A
2
1
3
4
5
8
F1
T1AL250V
R17
200K1/2W
R22
NC
R16
47K
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Model No: SW-M2.1 350

Service Guide Model No : SW-M2.1 350
Chapter 7. Important Note
7.1 Packing Requirement for Sending the PCB Assem ly y Post
PCB assem ly is a kind of sophisticated electronic circuit oard. Well
packing will e required when sending them y post.
* Some sophisticated IC components are mounted on the PCB assem ly,
hence it is necessary to pack each PCB assem ly with a separate static
protecting ag, in order to avoid static electricity.
* Relia le external packing is also very important when sending PCB
assem ly y 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 e repaired, it would e recommended to take the necessary parts form
one speaker system, so that you may have the as many speaker systems.
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