Genius GHT-S200 User manual

Service Guide GHT-S200
SERVICE GUIDE
KYE SYSTEMS CORP
GHT-S200
Version:1.0
Version 1.0 Page 1 of 21

Service Guide GHT-S200
Revision History
Version Date Change
1.0 22/08/2005
Version 1.0 Page 2 of 21

Service Guide GHT-S200
Table of Contents
RevisionHistory 2
TableofContents 3
GettingStarted 4
Conventions Used in this Guide 4
SafetyPrecautions 4
Chapter 1. How to Handle Defective Returns 5
1.1Overview 5
1.2Problems 6
1.2.1 FL/FR, RL/RR channels no sound 7
1.2.2 CEN channel no sound 8
1.2.3 Woofer channel no sound 8
1.2.4 Woofer no power 9
Chapter 2. Specifications 10
Chapter 3. Block Diagram 12
Chapter 4. Exploded View 13
Chapter 5. Part List 15
Chapter 6. Schematic Diagram 16
SchematicDiagram 17
SchematicDiagram 18
SchematicDiagram 19
SchematicDiagram 20
Chapter 7. Important Notes 21
7.1 Packing Requirement for Sending the PCB Assembly by post 21
7.2 Short of Spare Parts while Repairing a Speaker system 21
Version 1.0 Page 3 of 21

Service Guide GHT-S200
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 chemical, from
entering the speakers while performing maintenance procedures on the
speakers.
Version 1.0 Page 4 of 21

Service Guide GHT-S200
Chapter 1. How to Handle Defective Returns
1.1 Overview
Version 1.0 Page 5 of 21
Receiving Defective speaker form customers
Analyzing possible
malfunction causes
Deciding & proceeding
the rectification methods
Replace necessary
de
f
ect
iv
e
pa
r
ts
Return the speakers with
p
r
ope
r r
epac
k
ag
in
g
to
Verifying problems
proceeding
necessary tests
Proceeding tests to
verify if the speaker is
functioning normally
Function OK
Function NG
Function OK
Function NG

Service Guide GHT-S200
1.2 Problems
Item Problem Description
1.2.1 FL/FR, RL/RR channels no sound
1.2.2 CEN channel no sound
1.2.3 Woofer channel no sound
1.2.4 Woofer no power
Version 1.0 Page 6 of 21

Service Guide GHT-S200
* 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 FL/FR, RL/RR channels no sound
Problem
Analyzer and
Identify the Causes
Solutions
Version 1.0 Page 7 of 21
FL/FR,RL/RR channels no sound
Broken or short circuit
Check solder points on
PCB
Defective
U303,U310,IC200,IC2
01, CC1,CC2,CC4,
CC5,C326,C334,C329
,C337 Q300,ZD1,
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers
Check and replace
defective IC or
components

Service Guide GHT-S200
1.2.2 CEN channel no sound
Problem
Analyzer and
Identify the Causes
Solutions
1.2.3 Woofer channel no sound
Problem
Analyzer and
Identify the Causes
Solutions
Version 1.0 Page 8 of 21
CEN channel no sound
Broken or short circuit
Check solder points on
PCB
Defective
U311,IC202,C209,CC
3,C332,Q300,ZD1
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers
Check and replace
defective IC or
components
Woofer channel no sound
Broken or short circuit
Check solder points on
PCB
Defective
U301,IC202,U200,C22
1,C312,C320,R305,R3
07,C313,CN301
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers
Check and replace
defective IC or
components

Service Guide GHT-S200
1.2.4 Woofer no power
Problem
Analyzer and
Identify the Causes
Solutions
Version 1.0 Page 9 of 21
Woofer no power
Broken or short circuit
Check solder points on
PCB
Defective
U100,U300,Y100,R30
3,R304,R300,C112,C1
37
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers
Check and replace
defective IC or
components

Service Guide GHT-S200
Chapter 2. Specifications
Satellite – Center (AT 1KHZ):
NO Description Unit Specifications
1 Out Power at THD 10% W 20 ± 2
2 Sensitivity mV 300 ± 50
3 Freq Response (Ref:-3dB) Hz 40~20K
4 S/N ratio dB ≧60
5 Hum & Noise Vol:max mV ≦5
Satellite – Front (AT 1KHZ):
NO Description Unit Specifications
1 Out Power at THD 10% W 20± 2
2 Sensitivity mV 300 ± 50
3 Freq Response (Ref:-3dB) Hz 40~20K
4 Separation dB ≧35
5 S/N ratio dB ≧60
6 Hum & Noise Vol:max mV ≦5
Satellite – Rear (AT 1KHZ):
NO Description Unit Specifications
1 Out Power at THD 10% W 20 ± 2
2 Sensitivity mV 300 ± 50
3 Freq Response (Ref:-3dB) Hz 40~20K
4 Separation dB ≧35
5 S/N ratio dB ≧60
6 Hum & Noise Vol:max mV ≦5
Version 1.0 Page 10 of 21

Service Guide GHT-S200
Host (Woofer) (AT 100Hz):
NO Description Unit Specifications
1 Out Power at THD 10% W 100± 5
2 Sensitivity mV 180 ± 50
3 Freq Response (Ref:-3dB) Hz 20~20K
4 S/N ration dB ≧70
5 Hum & Noise Vol: max mV ≦10
Version 1.0 Page 11 of 21

Service Guide GHT-S200
Chapter 3. Block Diagram
Version 1.0 Page 12 of 21
5.1 CHINPUT
AUX1 INPUT
INPUT SCH
VOLUME CONTROL SCH
MCU SCH
POWER SCH
FL OUT
SPEAKER
FR OUT
SPEAKER
SLOUT
SPEAKER
SR OUT
SPEAKER
CENTER OUT
SPEAKER
SUBWOOFER O
U
SPEAKER
TRANS3
POWER SW 250V/2A
FUSE
AC IN
AUX2 INPUT
FL/FR/SL/SR/C AMP SCH
SUBWOOFER AMP SCH
O/P AMP SCH
ST-BY

Service Guide GHT-S200
Chapter 4. Exploded View
Host (Woofer)
PCB-1
Host key
Bottom Bedeck Strip
Host Bedeck Strip 2PCS
Volune knob
r
ansparent Bedeck piece
Front-panel
TOP Bedeck Strip
Pyramid 4PCS 年 月 日
设计
单位
变更者
制图
确认者
校核
Speaker
性质
变 更 原 因
审核
型号
变 更 内 容
日期
版
Cloth frame
LOGO
Transformer
PCB-3
PCB-2
Wooden Case
Steel Panel(BAC
PCB-4
Heat Si
n
Version 1.0 Page 13 of 21

Service Guide GHT-S200
Satellite (center)
TOP Corer
TOP Bedeck Strip 2PCS
Bedeck Strip 2PCS
Rear hull
Speaker 4PCS
Bottom Corer
Tweeter Speaker
Fabric speaker cover
LOGO
Satellite (front & rear)
Tweeter Speaker
Front Panel
TOP Bedeck Stuip
Midst bracket
Speaker 4PCS
Bedeck Strip 2PCS
Rear hull
Bottom Corer
Iron Piece (Small) 2PCS
TOP Corer
Feet pillar 2PCS
Bedeck piece
Iron Piece (Big)
LOGO
Join pillar 2PCS
Fabric speaker cover
Version 1.0 Page 14 of 21

Service Guide GHT-S200
Chapter 5. Part List
NO DESCRIPTION Qty UNIT Part No
1 GHT-S200/BODY/SATELLITE-FL 1 PC S200-01
2 GHT-S20/BODY/SATELLITE-FR 1 PC S200-02
3 GHT-S20/BODY/SATELLITE-RL 1 PC S200-03
4 GHT-S20/BODY/SATELLITE-RR 1 PC S200-04
5 GHT-S20/BODY/SATELLITE-CEN 1 PC S200-05
6 SPEAKER UNITA-204 8 OHM/2” 20 PC S200-06
7 RUBBER, Ø21.5/SATE 16 PC S200-07
8 GHT-S200/BODY/WOOFER/230V-EU 1 PC S200-08
9 SPEAKER UNIT 8” 4 OHM 80W 1 PC S200-09
10 PCBA GHT-S200 1 PC S200-10
11 IC TDA7294 1 PC S200-11
12 IC TDA7265 3 PC S200-12
13 IC PT2323 1 PC S200-13
14 IC JRC4558 4 PC S200-14
15 IC PT2258 1 PC S200-15
16 IC EM78P447 1 PC S200-16
17 TRANSFORMER, 230V: 16.5VACx2&3A;
26VAC*2&2A
1 PC S200-17
18 AUDIO CABLE, 6RCA to 6RCA, GHT-S200 1 PC S200-18
19 AUDIO CABLE, 1ST to 2RCA, GHT-S200 1 PC S200-19
20 CARTON, GHT-S200 2 PC S200-20
21 CUSHION, GHT-S200 1 SET S200-21
22 Round Red type Label (NO CARTON) 1 PC S200-22
23 S/N LABEL (NO CARTON&WOOFEWR) 2 PC S200-23
24 MANUAL GHT-S200 1 PC S200-24
25 PE BAG, GHT-S200 1 PC S200-25
26 PE BAG, GHT-S200 1 PC S200-26
27 PE BAG, POWER CORD, GHT-S200 1 PC S200-27
28 PE BAG, AUDIO CABLE 1 PC S200-28
29 CARDBOARD, ENGLISH, GHT-S200 1 PC S200-29
Version 1.0 Page 15 of 21

Service Guide GHT-S200
Chapter 6. Schematic Diagram
Title
Number RevisionSize
A4
Date: 26-Aug-2005 Sheet of
File:
C:\Documents and Settings\Administrator\ \s200 sch\S200 SCH Dd 桌面
Drawn By:
L1
1
L2
2
L3
3
L4
4
FLI
5
FRI
6
CTI
7
SUBI
8
SLI
9
SRI
10
MIXO
11
VCC
12
REF
13
GND
14 SDA 15
SCL 16
SRO 17
SLO 18
SUBO 19
CTO 20
FRO 21
FLO 22
LPFO 23
LPFI 24
R4 25
R3 26
R2 27
R1 28
IC101
PT2323
R113
100KR114
100KR115
100KR116
100KR117
100KR118
100KR119
100KR120
100KR121
100KR122
100K
C10410uF/50V
C10510uF/50V
C10610uF/50V
C10710uF/50V
C12310uF/50V
C12410uF/50V
C10210uF/50V
C10310uF/50V
C10010uF/50V
C10110uF/50V
C126
10uF/50V
FR IN
FLIN
SR IN
SLIN
SUB IN
CTIN
AUXR-IN
AUXL-IN
VCDR-IN
VCDL-IN
MIXO
+9V
SCL
SDA
R130270
R129270
R128270
R127270
R126270
R125270
C12810uF/50V
C12710uF/50V
C11010uF/50V
C13110uF/50V
C13010uF/50V
C12910uF/50V
FLI
1
FRI
2
CTI
3
CODE2
4
DGND
5
SCL
6
SDA
7
SUBI
8
SLI
9
SRI
10 SRO 11
SLO 12
SUBO 13
GND 14
REF 15
VCC 16
CODE1 17
CTO 18
FRO 19
FLO 20
IC100
PT2258
R132
100KR133
100KR134
100KR135
100KR136
100KR137
100K
C11110uF/50V
C11210uF/50V
C13210uF/50V
C11310uF/50V
C11410uF/50V
C11510uF/50V
R110
22k
R111
22k
C108
153 C109
273
SCL
SDA
C11810uF/50V
C11710uF/50V
C11610uF/50V
C13410uF/50V
C12010uF/50V
C11910uF/50V
C121
47uF/25V
+9V
R141
100KR142
100KR143
100KR144
100KR145
100KR146
100K
FR OUT
FL OUT
SR OUT
SL OUT
SUB OUT
CTOUT
MIXO
C133
47uF/25V
+9V
C125
47uF/25V
R123
100 R124
100
R138
100 R140
100
AUXR-IN
AUXL-IN
VCDR-IN
VCDL-IN
R101 1k
R102 1k
R100 1k
R103 1k
R104 1K
R105 1K
R106 1K
R107 1K
R108 1K
R109 1K
1
2
3
4
5
CN103
SCL
SDA
ST-BY
FR IN
FLIN
SR IN
SLIN
SUB IN
CTIN
1
2
3
4
5
6
7
8
9
CN101
1
2
3
4
5
6
7
8
CN306
FR SPOUT
FLSPOUT
SLSPOUT
SR SPOUT
CE SPOUT
1
2
3
4
5
6
JK101
2CHINPUT
1
2
3
4
5
6
7
8
9
JK102
5.1CHINPUT
Port
Port
Port
Port
Port
Port
FL
FR
CEN
SUB
SL
SR
GND
GND
GND
1
2
3
4
5
CN102
ST-BY
+5V
GND
GND
+9VFR OUT
FLOUT
SR OUT
SLOUT
SUB OUT
CT OUT
GND
+5V
Version 1.0 Page 16 of 21
INPUT&VOLUME CONTROL SCH

Service Guide GHT-S200
Chapter 6. Schematic Diagram
Title
Number RevisionSize
A4
Y100
4MHz
C122
20pF
C137
20pF
D102 DVD
D103 AUX
D104 VCD
D105 5.1CH
D106 FR ONT
D107 REAR
D108 CENTER
X1
C136
1uF/50V
R112
22K D100
1N4148
ST-BY
SCL
SCA
TRIG1
X1
1
2
3
RE100
REMOTE
R147
47
R149 100
C135
10uF/50V
TRIG3
PPA
TRIG2
PPB
PPC
PPD
PPE
PPF
PPG
PPDP
PPDP
R131
1K R139
1K
D109 SUBWOOFER
TRIG3
R165
1K
+5v C139
47uF/16V
C138
104
+5V
+5V
+5V
X2
X2
a
bf
c
g
d
e
DPY
1
2
3
4
5
6
7
a
b
c
d
e
f
g
8dp dp
DS100
DPY_7-SEG_DP
a
bf
c
g
d
e
DPY
1
2
3
4
5
6
7
a
b
c
d
e
f
g
8dp dp
DS101
DPY_7-SEG_DP
Q100
9015 Q101
9015
+5V
TRIG1 TRIG2
PPA
PPB
PPC
PPD
PPE
PPF
PPG
Q102
9015
TCC
1
VDD
2
NC
3
VSS
4
/INT
5
P50
6
P51
7
P52
8
P53
9
P60
10
P61
11
P62
12
P63
13
P64
14 P65 15
P66 16
P67 17
P70 18
P71 19
P72 20
P73 21
P74 22
P75 23
P76 24
P77 25
OSCO 26
OSCI 27
/RESET 28
U100
EM78P447SAP
O/P
G
VDD
D101
IRRX
R158
10K
R159
10K
R160
10K
R161
10K
R162
10K
R150
220 R154
220
R152
220
R151
220
R156
220
R155
220
R153
220 R157
220
S100 POWER
S101
INPUT
S102
MODE
PPG
PPB
PPC
PPD
PPE
PPF
PPA
PPDP
R148
22K
R163
10K R164 10K
+5V
1
2
3
4
5
CN104
SCL
SDA
ST-BY
GND
+5V
GND 7
VDD 8
GND
2
GND
1
GND
3
GND
4SDA 5
SCL 6
U101
24C02
+5V
SCL
SCA
Version 1.0 Page 17 of 21
24C02
MCU SCH

Service Guide GHT-S200
Chapter 6. Schematic Diagram
Title
C204 10uF/50V
C205 10uF/50V
C206 10uF/50V
C207 10uF/50V
C208 10uF/50V
C209 10uF/50V
3
21
IC20 0A
MC4558
R200
47K
C200
220pF
C202
100pF
R203
33k
R201
9.1K
-9V
+9V
5
67
IC20 0B
MC4558
R204
47K
C211
220pF
C201
100pF
R202
33K
R206
9.1K
3
21
IC20 1A
MC4558
R205
47K
C210
220pF
C212
100pF
R208
33K
R207
9.1K
-9V
+9V
5
67
IC20 1B
MC4558
R209
47K
C216
220pF
C217
100pF
R213
33K
R211
9.1K
3
21
IC20 2A
MC4558
R210
47K
C215
220pF
C218
100pF
R214
22K
R212
13K
-9V
+9V
5
67
IC20 2B
MC4558
R222
47K
C227
220pF
C228
100pF
R224
33k
R223
9.1K
FR OP OUT
RL OP OUT
SR OP OUT
SL OP OUT
SUB OP OUT
CT OP OUT
+7V
-7V
C230
47uF/16V
C231
47uF/16V
R219
20K
R220
22K
R221
22K
C225
MC103
C221
MC474
3
21
84
U200A
LM4558
R217
1K
C223
MC104
R218
2.2K
5
67
U200B
LM4558
R216
100K
C224
224.M
C222
100uF/16V
FR OUT
FL OUT
SR OUT
SL OUT
SUB OUT
CTOUT SUB OP OUT
SUB OP OUT2
Version 1.0 Page 18 of 21
-9V
+9V
CC6
10uF/16V
O/PAMP SCH

Service Guide GHT-S200
Chapter 6. Schematic Diagram
4
3
2
1
Title
Number RevisionSize
A4
Date: 26-Aug-2005 Sheet of
File: C:\Documents and Settings\Administrator\ \s200 sch\S200 SCH.Ddb
桌面Drawn By:
WOOFER300
C315
104.C
C314
470uF/35V
1
2
3
46
78
9
10
13
14
15
Mute
STBY Thermal
Shutdown S/C
Protection
U301
TDA7294
C313
22uF/25V
C321
10uF/50V
C320
22uF/16V
C312
4.7uF/50V(NP)
C323
104.C
R306
22K
R309
33K
R308
10K
R307
680
R305
22K
C324
470uF/35V
+/-16.5V*3A
+26v
-26V
SUB OP OUT2
ST-BY
1
2
3
4
D303
KBL02G
C300
4700uF/25V
C303
4700uF/25V
+26V
-26V
1
2
3
4
D300
RS608
-16v
+16v
FUSE300
Master switch300
1 2
J300
CON2
T300
TRANS7
C304
4700uF/25V
C305
4700uF/25V
+/-26V*2A
R300
10
R302
10
+9v
-9v
C306
22uF/16V
C307
22uF/16V
C310
104.C
C309
104.C
1
2
3
4
5
6
7
8
CN307
1
2
3
CN308
+16V
GND
-16V
GND
ST-BY
GND
C316
4700uF/50V
C317
4700uF/50V
R303
10/1W
C308
100uF/16V
C311
22uF/16V
+5V
IN 1 OUT
3
GND
2
R304
LM7805
IN
2OUT 3
GND 1
U302
7909
OUT 1 IN
3
GND
2
U300
7809
C322
10uF/50V
1
2
3
4
5
6
CN309
+5V
+5V
-9V
+9V
SUB
ACC1
ACC2
GND
GND
ACC1
ACC2
1
2
WOOF OUT
CN310
WOOF OUT
WOOF OUT
Version 1.0 Page 19 of 21
RR1
33K
DD1
4148
RR2
100K
POWER&SUBWOOFER AMP SCH

Service Guide GHT-S200
Chapter 6. Schematic Diagram
Title
Number RevisionSize
A4
-Vs
1
OUT(R) 2
+Vs 3
OUT(L) 4 ST-BY
5
-Vs
6
IN(L)
7
IN-(L) 8
GND
9
IN-(R) 10
IN(R)
11
U303
TDA7265
-16V
C326
1uF
C334
1uF
C328
104
C336
104
R322
4.7
R323
4.7
R319
18K R321
560
R320
560
R313
18K
FR SPOUT
FLSPOUT
C327
470UF/25V
C335
470UF/25V
-Vs
1
OUT(R) 2
+Vs 3
OUT(L) 4 ST-BY
5
-Vs
6
IN(L)
7
IN-(L) 8
GND
9
IN-(R) 10
IN(R)
11
U310
TDA7265
-16 V
C329
1uF
C337
1uF
C331
104
C339
104
R316
4.7
R326
4.7
R324
18K
R325
560
R315
560
R314
18K
C330
470UF/25V
C338
470UF/25V
-Vs
1
OUT(R) 2
+Vs 3
OUT(L) 4 ST-BY
5
-Vs
6
IN(L)
7
IN-(L) 8
GND
9
IN-(R) 10
IN(R)
11
U311
TDA7265
-16V
+16v
C332
1uF C379
104
R353
4.7
R317
18K
R318
560
SLSPOUT
SR SPOUT
C333
470UF/25V
C340
470UF/25V
CESPOUT
FR OP OUT
FL OP OUT
SR OP OUT
SL OP OUT
T
OP OUT
SB
SB
SB
Q300
945
R312
8.2K
R311
15K C325
10uF/50v
R310
10K
ST-BY
+16V
SB
1
2
3
4
5
6
7
8
CN301
CON8
FR SPOUT
FLSPOUT
SLSPOUT
SR SPOUT
CESPOUT
+16v
1
2
3
CN305
+16V
GND
-16V1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
CN302
GND
GND
GND
FR OUT
FLOUT
SR OUT
SLOUT
SUB OUT
CTOUT 1 2
3
4
5
CN304
ST-BY
+5V
GND
GND
+9V
GND
ST-BY
GND
+5V
+5V
-9V
+9V
SUB
Version 1.0 Page 20 of 21
CC4 MC1 04
CC5 MC1 04
CC1 MC104
CC3 MC1 04
CC2 MC104
ZD1
5.1V
FL/FR/SL/SR AMP SCH