Service Guide Model No : SW-HF5.1 5050V2
SERVICE GUIDE
KYESYSTEMS CORP.
Page 1/24
Service Guide Model No : SW-HF5.1 5050V2
Revision History
Version
Date
Change
1.0
07/06/2010
First Release
Page 2/24
Service Guide Model No : SW-HF5.1 5050V2
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 Speaker no sound
1.2 Display no function
1.3 Remote control no function
Chapter 2. Specifications ………………………………………………………….10
Chapter 3. Block Diagram ……………………………………………………….11
Chapter 4. Exploded View ………………………………………… 12,13,14&15
Chapter 5. Part List ………………………………………………………………16
Chapter 6. Schematic Diagram …………………………………………………..17
Chapter 7. Important Notes ………………………………………………………18
7.1 Packing Requirement for Sending the PCB Assembly by Post …..18
7.2 Short of Spare Parts while Repairing a Speaker System …………18
Page 3/24
Service Guide Model No : SW-HF5.1 5050V2
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 4/24
Service Guide Model No : SW-HF5.1 5050V2
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
Page 5/24
Service Guide Model No : SW-HF5.1 5050V2
Problems
Item Problem Description
1.1 Speaker no sound
1.2 Display no function
1.3 N0 Power
1.4 Remote control no function
Page 6/24
Service Guide Model No : SW-HF5.1 5050V2
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 One or more channels no sound (Stereo in/DVD in jack no function)
Problem
Analyze
and
Identify
Cause
Solution
Speaker no sound
Component cold
solder or Short
Circuit
Defective
IC1,U1,U2,U3,U4
,U5,U7,U8,U9
Speaker cable disconnect,
Jack1 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 7/24
Service Guide Model No : SW-HF5.1 5050V2
1.2 Display no Function
Problem
Analyzer and
Identify the Causes
Solutions
1.3
No Power
Display no function
Component cold
solder or Short
Circuit
Defective
U1,U2,U3 or X1
LED 1 defective
Check solder
point on PCBA
Check and
Replace defective
IC
Replace defective LED1
Page 8/24
No Power
Component cold
solder or Short
Circuit
Defective
T900,IC900,IC901,
IC902,BD900 or
F900
Power Switch defective
Check solder
point on PCBA
Check and
Replace defective
IC or Fuse
Replace defective Power
Switch
Problem
Analyzer and
Identify the Causes
Solutions
Service Guide Model No : SW-HF5.1 5050V2
1.4 Remote control no function
Problem
Analyzer and
Identify the Causes
Solution
Remote control no function
Component cold
solder or Short
Circuit
IR1 or Remote hand set
defective
Check solder
point on PCBA
Replace defective IR1,or
Remote hand set
Page 9/24
Service Guide Model No : SW-HF5.1 5050V2
Chapter 2. Specifications
NO.
Description
Unit
Specifications
1 Out Power at THD 10%(Sub) W
≧50
2
Out Power at THD 10%(Sat)
W
≧20W
3 Sensitivity(FR,FL,SR,SL) mV
850±85
4 Sensitivity(CEN) mV
600±60
5
Sensitivity(Sub)
mV
100± 30
6 Freq. Response (Sub) Hz
20~130 ± 10%
7
Freq. Response (Sat)
Hz
20~20K ± 10%
8
Separation
dB
≧
≧≧
≧ 40
9 S/N ratio
dB
≧
≧≧
≧ 70
10 Hum & Noise (Vol.: max)
mV
≦
≦≦
≦ 2
Page 10/16
Page 10/24
Service Guide Model No : SW-HF5.1 5050V2
Chapter 3 Block Diagram
Audio in
LCH & RCH
Channel selector (Built-in
two channel to six channel
converter)& Electrical
Volume control
Audio
Amplifier IC
TDA7492P
LCH
RCH
Page 11/24
DVD in
FL,FR,SL,SR,CEN,
SUB
Audio
Amplifier IC
TDA7492P
S
L
S
R
CEN
SUB
Audio
Amplifier IC
TDA7492P
Audio
Amplifier IC
TDA7492MV
Service Guide Model No : SW-HF5.1 5050V2
Chapter 4. Exploded View
Page 12/24
Page 13/18
Service Guide Model No : SW-HF5.1 5050V2
Page 14/18
Page 13/24
Service Guide Model No : SW-HF5.1 5050V2
Page 14/24
Service Guide Model No : SW-HF5.1 5050V2
Page 15/24
Service Guide Model No : SW-HF5.1 5050V2
Chapter 5. Part List
No
DESCRIPTION
Qty
UNIT
Part No.
1
ICTDA7492P
3 U1,U2,
U3
2
IC-TOP260EN 1 IC900
3
IC-EL817C-B 1 IC901
4
ER35 Transformer 1 T900
5
BD-KBU406 Rectifier 1 BD900
6
ICM62429
3 U7,U8,
U9
7
TL431 IC
1 IC902
8
ICALVT16175DL
1 U5
9
ICRC4558
1 U6
10
ICTDA7492MV
1 U4
11
ICMCU( TMS4500）
1 U1
12 ICSM1628 1 U2
13 IC78L05 TO-92 1 U3
14
POWER CORD 2P 1
VPE003012-006
0
15
SPK UNIT 1
FSB526065-680
4
16
RCA CABLE
1
VRC220001-001
0
Page 16/24
Service Guide Model No : SW-HF5.1 5050V2
Chapter 6. Schematic Diagram
Pls refer to The Attachment
Page 17/24
1 2 3 4
A
B
C
D
4
321
D
C
B
A
Title
Number RevisionSize
A
Date: 8-Jun-2010 Sheet of
File: E:\
\KYE Project\SW-HF5050 V\SMPS\smps.ddbDrawn By:
4 1
2 3
BD900
BD-KBU406
TVR900
TVR14621
F900
C902
102PF-400V
C903
102PF-400V
NTC900
RT-5A
C900
474-275V
L
N
R900
470K
T3.15AL 250V
C901
104-275V
R903
470K
R902
470K
R901
470K
1 2
4 3
L900
L-15MH_1
AC IN 90~264V
1 2
4 3
L901
L-15MH_1
C917
150U 400V
R912
820K
R913
820K
HV+
R905
470K
R904
470K
R906
820K
HV+
D900
UG2007
R907
68K 2W
C904
472-620V
C920
103nF 1000V
D903
HER105
C924
47U 16V
C907
1500P 1KV
R909
20R
R908
20R
1
2
3
D901
MUR1020CT
C909
1000U 35V
C913
104 50V
L902
6UH 8A
C918
1000U 35V
C914
104 50V
1
7
10
15
3
5
11
12
8
2
16
9
13
T900
ER35 TRANSFORMER
1
2
4
3
IC901
IC-EL817C-B
R918
2K
1
2
3
IC902
IC-TL431
R924
2.2k 1%
R917
1k OHM
R920
20K 1%
R919
1K
C923
104 50V
C925
104 50V
C906
102PF-400V
D904
1N4148
ZD902
7.5V
R922
6.8R
R914
5.1K
ZD900
27V
1
2
CN900
CN2P-396-2
+25V/2A PK3A
GND
C
FXS
D V
IC900
IC_TOP260EN
VR900
P6KE200A
C922
10U 50V
R916
1K OHM
C921
22U 50V
C905
102P-400V
C908
1500P 1KV
R911
20R
R910
20R
1
2
3
D902
MUR1020CT
C911
680U 35V
L903
6UH 8A
C919
1000U 35V
C916
104 50V
R915
4.7K
ZD901
27V
C912
680U 35V
C915
104 50V
+18V/4A PK5A
P902
PAD-D4
P903
PAD-D4
1
2
3
4
CN901
CN4P-396
GND
P900
PAD-D4
P901
PAD-D4
C926
100P-1KV
R917
0R
FB900
FB-100
FB901
FB-100
R921
0
R923
NC
SW-M5.1 HF5050V2 SMPS PCBA
SAP NO:WPC005050-0002 VER100503
AC PLUG
SW
1
2
CA
222
POWER CORD
Page is loading ...
Page is loading ...
Page is loading ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
