akira HTS-292-998 User manual

Home Theatre System
Service Manual

-2-
Model No.: HTS-292-998
Version: 1.0
MODEL:
HTS-292-998

-3-
Model No.: HTS-292-998
Version: 1.0
CONTENTS
TECHNICAN SPECIFICATION ............................................................................................................. 4
IMPORTANT SAFETY MEASURES ..................................................................................................... 5
TROUBLESHOOTING ........................................................................................................................... 7
CIRCUIT DIAGRAM .............................................................................................................................. 9

-4-
Model No.: HTS-292-998
Version: 1.0
TECHNICAL SPECIFICATION
Description Details
Power supply standard ~110V/220-240V 50Hz/60Hz
Main channel output 50W x 2 (4 ohm / 1K / THD=2%)
Center channel output 10W (4 ohm / 1K / THD=10%
SURR channel output 10W x 2 (4 ohm / 1K / THD=10%
Channel separate rate ≥35dB
Harmonic distortion ≤2%
Frequency response 20Hz~20KHz (±2dB)
Input sensitivity 250mV
Weight 5kg
Measurement 430 x 330 x 60(mm)

-5-
Model No.: HTS-292-998
Version: 1.0
IMPORTANT SAFETY MEASURES
Before using this machine, please read all the safeties and operating instructions, please abide by all
the warnings on the machine and operating instructions. Meanwhile, please observe all the indications
about safe operating.
1. Protection of electric power supply line
Be aware that the electric power supply line is not tramped, orpressed by heavy objects. Pay
more attention to the plug of power supply line and the outlet in the machine.
Do not lengthen the electric lines or make outlet overload, due to the danger of catching fire
or getting electric shock.
Do not pull or drag the power supply line.
2. Ventilation
The groove on the casing of the machine is to ensure safe action on it and protect it from
overheating. This groove must NOT be blocked or covered.
This set must be put in ventilated place.
DO NOT put any object on it or cover it with cloth.
The distance away from the wall should not be less than 10 centimeters.
3. Electric shock
Prevent objects or liquid from dropping into the mchine from the groove. If metal objects,
even a hairpin or a needle drop into it, electric conduction will happen and the danger of
getting electric shock is quite possible.
So families with children should prevent children from putting anything, especially metal
into the inner machine.
4. Repairing
The user should NOT do any repairing work except in the range stipulated in the instructions.
Various repairing work outside the range should be entrusted.
To recognized repairing workers.
5. Casing dismantling
DO NOT dismantle the casing. If one touches the inner components, he may properly get
serious electric shock.
6. Electric alternating output plug
The electric alternating output plug in the rear panel should NOT insert neither speaker
equipment with higher rated power nor home appliance, such as electric iron, bread toaster,
in prevention of causing fire or electric shock.

-6-
Model No.: HTS-292-998
Version: 1.0
7. Unusual smell
When discover unusual smell and smoke, cut off the power supply immediately and pull the
plug out off the outlet on the wall.
8. Problem need repair
When the listed problems occur, recognized workers must be entrusted to repair the set.
a. Damage of electric power supply line or plug.
b. Object or liquid dropped into the machine.
c. Showered by rain
d. Working unusually even after repairing under the operating instruction. The
machine cannot resume normal working until it is examined and repaired
thoroughly.
e. The machine dropped from high place or the casing is damaged. The function of the
machine change noticeably.

-7-
Model No.: HTS-292-998
Version: 1.0
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REMEDY
Press POWER/ON, this unit
is not turned on.
The cord is not plugged in or not
completely plugged in.
Plug in the cord firmly.
This unit does not operate
normally
May be greatly influenced by
some loud external noise (like
lightening or excessive static) or
any wrong operations occurs in
using.
Turn off the unit to get it in
standby mode. Unplug the
power cord.
The output cord is not connected
right.
Connect the cord correctly. Or it
many damage the cord.
The function is set to be operated
manually or the right input source
is mot selected.
Select the correct input source
or set the system to be auto
operating.
No sound is heard or no
picture is seen
The speaker is not connected
firmly
Connect firmly.
Check that the volume in each
channel are the same.
Adjust to the right place.Sound can only be heard from
one side of the speakers.
The cord is not connected
correctly.
Connect the ground cord
correctly. If the problem
persists, the speaker cord may
have been damaged.
No sound from the front
speaker.
The cord is not connected
correctly.
Connect the speaker cord well.
The volume is adjusted to the
minimum.
Increase the volume.No sound from the center
speaker
The cord is not connected well. Reconnect the cord.
The volume is adjusted to the
minimum.
Increase the cord well.No sound from the subwoofer.
The cord is not connected well. Connect the cord well.
The cord is not connected well. Connect the cord firmly. If the
problem persists, the cord may
have been damaged.
No sound from the surround
speaker
The cord is not connected well. Connect the cord firmly.
The remote control is out of
work.
The battery may be too weak. Change the battery.

-8-
Model No.: HTS-292-998
Version: 1.0
PROBLEM POSSIBLE CAUSE REMEDY
An obstacle is in the way. Move the obstacle.
It many be in wrong operating place. The maximum operating range
of the remote control is 6m
within an angle of 30 degrees
from the axes of the front panel.
The remote control does not
work well.
The remote sensor is in direct
sunshine or light (like duophase
fluorescent lamp).
Change the position of the unit.

1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
EA/VP
31
X1
19
X2
18
RESET
9
RD
17
WR
16
INT0
12 INT1
13
T0
14 T1
15
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
P00 39
P01 38
P02 37
P03 36
P04 35
P05 34
P06 33
P07 32
P20 21
P21 22
P22 23
P23 24
P24 25
P25 26
P26 27
P27 28
PSEN 29
ALE/P 30
TXD 11
RXD 10
U?
8751
1 2 3 4 5 6 7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23 24 25 26 27 28 29 30 31 32 33
34
35
36
37
38
39
40
41
42
43
44
CS16360
VFD-ZYC3316-1A01
D+5V
-VEE 10K
D+5V
P3.0
P1.3
P3.1
1
2
3
4
5
CON2
D+5V
22KX3
220X2
10KX3
D+5V
P3.0
P3.1
P1.3
15P 15P
Vin
1
GND
2
Vout 3
7805
12M
D+5V
4K7
4148
10U
4K7
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
10KX8
123
100
100U/16V
1
2
3
4
5
CON1 4007
4007
330U/35V
100U/50V
100U/16V
680
680
10U/35V
5V1
100X2
D+5V
-VEE
F2
F1
F1 F2
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
10KX8
D+5V
1 2 3 4 5 6 7 8 9
10
11
12 13 14
CON14
+V
220X2
10KX3
D+5V
AGND DGND
1030
5V6
5V6
24V
10V
0V

1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
2K2
2K2
10K
10K
220K
5K6
D5SB_40
6800U/63V
6800U/63V
+34V
-34V
D5SB_40
3300U/25VX2
+16V
-16V
1
3
4
3PIN
1
3
4
3PIN
4007 4007
47U/25V
4148
47U
9014
5V1
9015 223
5401X2
8050
4007
+16V
-16V
5551X2
5401X2
47U
47U
2K2
9V1
9V1
2K2
47U
47U
4U7X8
15KX8
2U2
P+8V5
22U
2U2
104
104 104
5K6
104
104 104
5K6
272
272
4U7
4U7
PT2314
1U
1U
2K2
1K
P+8V5
47U 104 104 104
10K
272
1U
1U
PT2315
123
4
5
6
7
9
11
1213
1415
16
17
18 19 20
12
3
45678
9
10 11 12
13
14
15
16 1718 1920
2122
23
24
25 26 27
28
X0
12
X1
13
Y0
2
Y1
1
Z0
5
Z1
3
INH
6
A
11
B
10
C
9
VEE
7
X14
Y15
Z4
U?
4053
9014
220U
2K2
5V6
100U
M+5V(M62429)
+8V5
-8V5
+16V
9014X2
100U
2K2
9V1
100U
P+8V5(PT2314/5)
SL
SR
CEN
1 2 3 45
6 7 8
U?
M62429/A
1 2 3 45
6 7 8
M62429/B
2K2
2K2
2K2
47K
47K
47K
2U2
2U2
2U2
SWI 4K7
47K
100 +16V
M+5V
M+5
22K
22K 10U
10U
9014
+8V5
-8V5
4K7
2K2
4U74U7
33K 470K
3
2
1
411
A
324b/1
5
6
7
B
324a/2
10
9
8
C
324A/3
12
13
14
D
324A/4
223 223
82K
82K
683 683
152
152
154
154
82K
82K
10K
10K
10K
10K
+8V5
-8V5
1K
1K
1K
1K
4148
4148
4148
4148
2U2X410KX4
3
2
1
411
A
324a/1
5
6
7
B
324A/2
10
9
8
C
324B/3
12
13
14
D
324B/4
682 682
82K
82K
272 272
681
681
150K
390K
1K5
56K
10K
10K
+8V5
-8V5
1K
1K
1K
4148
4148
4148
2U2X310KX3
18P
75K
100K
4K7
4K7 1U
3
2
1
84
IC2A
4558
5
6
7
IC2B
4558
10K
-8V5
+8V5
15K
2U2
1K
47P
1 2 3 4 5 6 7 89
10 11 12 13 14 15 16
PT2399
X0
13
X1
14
X2
15
X3
12
X4
1
X5
5
X6
2
X7
4
INH
6
A
11
B
10
C
9
VEE
7
X3
U?
4051
10K
10K 10K
10K
10K
561 561
823 823
?
103
+8V5 47U
39K
18K 68K
9014 9014
10K
10K
104X2
101
15K
12K
15K
1U
1031U
2K7
10K
2K2 1U
MIC1
MIC2
1
2
3
4
5
5PIN
1
2
3
4
5
5PIN
47K
10K
1U
2K2
OK1 OUT
OK2 OUT
10U
PR
3
2
1
84
IC4A
4558
5
6
7
IC4B
4558
10K 22K
101
10U
10K
82K
221
+5V
-5V
104
104
100
SWO
1K
1K
1K
102
102
102
AMP_CEN
AMP-SR
AMP_SL
1K
1K
+8V5
10K
3
2
1
84
IC3A
4558
5
6
7
IC3B
4558
10K
820K
+8V5
-8V5
33K
153
9014 9014
22K
22K
22K 22K
100
+8V5
P2.2
P2.0
P2.4
P2.3
P2.1
R
R
R
R
L
L
L
47KX8
P2.5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CON14
P2.7
P2.6
P2.5
P2.4
D+5V
P2.2
P2.1
P2.0
P2.3
P3.3
P3.4
P3.5
P1.7
P3.5
P1.7
AGND DGND
P3.3
P3.4
P3.5
P2.7
100K
-8V5
3
2
1
84
IC1A
4558
5
6
7
IC1B
4558
47K
+8V5
12K
1K
47P
47P
47K
12K
100K
1K 561
561
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
TDA1308A
+5V
104
OK DEL1
OK DEL2
AC-3CONT
2R2
1U
22K
473
360K
4K7
33K
56K
33K
9014
56K
OK1 IN
OK2 IN
1K
1K
10U
10U
AMP_R
AMP_L
P2.6
OK DEL2
OK DEL1
220X2
220U
5V1
J1 J2
104X3
10U
104
2U2
TUNER
L
TAPE
VCD
DVD
1K
10K 47K
47U 13V
28V
0V
0V
13V
28V

1 2 3 4
A
B
C
D
4321
D
C
B
A
9014
5551
5551
C2383
C2383
A1013
A1013 A1695
54015401
100 100
680
100 100
3K3 10680K 680K
3K3 10 680K680K
4148
4148
4148
4148
22K
100470
10R1K
1K
22K 10R
0.22R/5W0.22R/5W
220/0.5W
470
1K5
2K4
47K
33K
5R6 2K2
100
5R6
221
10U/25V
AMP_R/LIN
221
47P4148
4148
4148
4148
221
C4468
104
22P
100U
R/LOUTPUT
-34V
+34V
9014
1U/50V
4148
1
2
4
53
A
TDA2030
-16V
+16V
22U/25V
104
AMPSL/SR/CENIN
10T
5K6
4148
PR
100
YSS220
YSS330
SL/SR/CEN/OUTPUT
J1
J2
M998 --
47P
47K
47K
2K2
10K
220U
220U 4148
9014 9014
R/L OUT
R OUT
L OUT
PR

C1
10U
R1
10K
R6 56K
R11 1k
R23 33k
R24 33k
R25 33k
R26 33k
R27 33k
R28 33k
R29 33k
R30 33k
R12 1k
R13 1k
R14 1k
R15 1k
R16 1k
R17 1k
R18 1k R34
1k
R2
10K R7 56K
R3 10K
R8 56K
C2
10U
R4
10K
R9 56K
R5
10K
R10 56K
R35
3k3
R36 150k
R37
2k2
R40
2k2
R38
2k2
R39
2k2
C3
10U
C4
10U
C5
10U
C6
10U
C7
10U
C8
10U
C9
10U
C10
10U
C11
10U
C12
10U
+
5
-
67
N1B
ST084
+
5
-
67
N1B
ST084
+
10
-
98 N1C
ST084
+
5
-
67
N2B
NE5532
+
5
-
67
N2B
NE5532
+
12
-
13 14
N1D
ST084
R19 1k
R20 1k
R31 33k
R32 33k
X0
12
X1
13
Y0
2
Y1
1
Z0
5
Z1
3
X14
Y15
Z4
INH
6
A
11
B
10
C
9
GND 8 VEE
7
VCC 16
N3
4053
TAPE
CD/VCD
DVD
Rin
Lin
Rin
Lin
Rin
Lin
SRin
SLin
Cin
SWin
Sw OUT
C13
10u
C14
10U
C15
10U
C16 10U
R43 51R
R44100k
R4675K
R49 15K
R52 47K
R50 15k
C17 10U
R53 47K
R47 75K R45 100K
R57 22K
R54 47K
R5822K
R55
47k
R56
47k
1
2
IN1
AV2-8.4-8
1
3
4
6
2
5
IN2
AV4-8.4-13
1
3
4
6
2
5
IN3
AV4-8.4-13
R59 33k
R33 33k
R21 1k
R22 1k
SW
Rin
Lin
R60
220
V1
9015
R61
220/2W
V3
5551
R63 22k
C36
334
R64
22k
R71 33k
R72 33k
1 2
3 4
5 6
9 10
7 8
K1
SMB-24-3C
R77 10k
V5
9014
R86
100k
C78
47u/50V
VD2
4148
VD19 4004
VD20
4004
V6
9014
V7
9014
V8
9014
V9
9014
V49
5551
R78
10k
R73 33k
R74 33k
R148
47k
R66 22k
R149
47k
R150 4k7
R152
39K
R153
56k
C79
1u/50V
C80
4u7/50V C81
100u
C82
100u
1
1
2
3
4
LB
1
2
LB
3
4
LB
1
2
3
N4
7809
C83
10u/50V
VD21 4148
R62
220/2W
R1514k7
R75 33k
R163 680
R79 10k
C84
473
XS2
15p
K2
SMB-24-2C
+
-
-
+
-
+
CENTER SPEAKER
-
+
-
+
REAR SPEAKE
R
LEFT SPEAKER
RIGHT SPEAKER
R164 100K
VD5
4148
V2
9015
R165 10K
+48
SW
STANDBY
R180 10
R181 10
1
2
OUT3A
LB3
C90 4U7
R48 75K
MICIN
C92 153
C93
18p
C94
18p
C95
18p
C9618p
C97 18p
2314DATA
2314CLK
+5
R182
3k3
C98
103
C74
104
R168
3k3
R183
1K
R184
22K
R185
10K
R186 75K
POWER-DY
JDQ3
VDD
1
AGND
2
REF
28
ROUT
6
RIN
5
LOUD-R
7
BOUT-R
22
BIN-R
21
TREB-R
4
L-OUT 24
R-OUT 23
TREB-L 3
BIN-L 19
BOUT-L 20
LOUD-L 12
LIN 17
LOUT 18
CLK 27
DADA 26 DGND 25
IN4
13 RIN4
8LIN3
14 RIN3
9LIN2
15 RIN2
10 LIN1
16 RIN1
11
PT2314 IC1
334
C109
10uF
C121
ELECTRO1
C122
ELECTRO1
C123
ELECTRO1
C110
10uF
C111
10uF
C112
10uF
C113
10uF
C114
10uF
C115
10uF
C116
10uF
C117
10uF
+12V
C124220uF
C125
2.2uFC131
1.0uF
C132
0.1uF
C133
0.1uF
R192
5K6
C136
272
C137
272
C134
0.1uF
C135
0.1uF
R193
5K6
C138
0.01uF
C126
2.2uF
ROUT
LOUT
C91
4U7
5
67
U1B
NE5532
LOUT
LOUT
C18
10U
C139
47P
1
3
4
6
2
5
IN4
AV4-8.4-13
C118
10uF
R51 15k
5
6
7
U1B
NE5532
5
67
U2B
NE5532
5
67
U2B
NE5532
C127
2.2uF
C14056P
C128
2.2uF
C141
56P
VD9
4148
C129
2.2uF
V50
5551 R194
15K
C142
153
R196
47K
R197
4K7
DISPLAY1
R199
22K
V51
5551
R200
100 C143
102
DISPLAY2
LIN
1
LOUT
2
LOUT
3
DATA
4CLK 5
VDD 6
ROUT 7
RIN 8
IC2 M62429
LIN
1
LOUT
2
LOUT
3
DATA
4CLK 5
VDD 6
ROUT 7
RIN 8
IC3 62429
V52
5551
R198
4K7
SW MU
C130
2.2uF
R195
15K
R201
100K
+5V6
C119
10uF
AC3 COT
-5V6
AC-3
C144
104
C145
104 C148 3300u/50V
C149
3300u/50V
VD22
5401 VD24 5401
VD26
5401 VD28 5401
+V1
-V1
XS2
3P/4
C146
104
C147
104
C150
3300u/50V
C151
3300u/50V
AC20Vx2
VD23
5401
VD25
5401
VD27
5401
VD29
5401
+V2
-V2
XS3
3P/4
1
2
3
N5
7909
R202
100/3W
R203
100/3W
R204
100/3W
R205
100/3W
C152
220U/35V
C154
220U
C153
220U/35V
C155
220U
+12
-12
C156
104
C157
104
MICIN
C120
10uF
2
GND
+5V
MUTE
SW MU
DELAY 1
DELAY 2
2314CLK
2314DATA
DISPLAY1
DISPLAY2
2315CLK
62429CLK1
62429CLK2
62429DATA
A/B
2314CLK
2314DATA
MUTE
SW MUTE
DELAY1
DELAY2
D+5V
GND
A/B
2315CLK
62429CLK1
62429CLK2
62429DATA
DISPLAY1
DISPLAY2
HTS-292-998-A
R198 10k
R196 10k
V105
9014 V106 9015
R197 4k7
R195 4K7
V107
9014 V108 9015
R199 4k7
V109
9014 V110 9015
R1101
4k7
V111
9014 V112
9015
R1103
4k7
V113
9014 V114 9015
R1105
4k7
V115
9014 V116 9015
R1104
10K
R1102
10k
R1100
10K
R194 10k
C184
104
C185
104 C186 3300u/50V
C187
3300u/50V
AC32Vx2
R1106
56K
R1107 2K2
R1108 33K
R1109
5.1/0.5W
C136
4u7/50V
C137
47U/25V
C142
100u/25V
C140
100u/25V
C139
104
C141 104
C143
104
1
2
3
4
5
N111
2030A
+V2
-V2
C138
101
VD126
5401 VD127 5401
VD124
5401 VD125 5401
R1110
56K
R1111 2K2
R1112 33K
R1113
5.1/0.5W
C144
4u7/50V
C145
47U/25V
C150 100u/25V
C148
100u/25V
C147
104
C149 104
C151
104
1
2
3
4
5
N112 2030A
+V2
-V2
C146
101
R1114
56K
R1115
2K2
R1116 33K
R1117
5.1/0.5W
C152
4u7/50V C153 47U/25V
C158
100u/25V
C156
100u/25V
C155
104
C157
104
C159
104
1
2
3
4
5
N113 2030A
+V2
-V2
C154
101
+48
-48
VD108
4004
VD109
4004
VD110
4004
XS6
3P/4
SL
SR
C
VD145
4004
VD146
4004
VD147 4004
R37
2k2
SL
C164
104
C165
47u/50V
VD113 4148
R1133
10k
R1135
100k
V124
9014
R1134
100k
C170
1u/50V
L101
0.1uH
R1128
100
R1130
100
C162
104
C161
221
R1118
56k
R1125
1k
R1120
3k3 R1121 3k3
C168 56P
R1124 22k
R1131
0.5/5W
R1132
0.5/5W
R1129
220/0.5W
C166
56P
R1122
150
R1123
150
R1119
68k
C160
4u7/50V
C163 47u/50V
C167
47u/25V
V119
5401
V123
B817
V121
A1013
V118
5551
V117
5551
V120
C2383
V122
D1047
C171
104
R1136
5.1/0.5W
R1127
10K
VD112
4148
VD114
4148
-48
+48
R1126
10K
C169
47U/50V
C1120
33P
C1121
33P
R1207
56K
C164
104
C165
47u/50V
VD113 4148
R1133
10k
R1135
100k
V124
9014
R1134
100k
C170
1u/50V
L101
0.1uH
R1128
100
R1130
100
C162
104
C161
221
R1118
56k
R1125
1k
R1120
3k3 R1121 3k3
C168 56P
R1124 22k
R1131
0.5/5W
R1132
0.5/5W
R1129
220/0.5W
C166
56P
R1122
150
R1123
150
R1119
68k
C160
4u7/50V
C163 47u/50V
C167
47u/25V
V119
5401
V123
B817
V121
A1013
V118
5551
V117
5551
V120
C2383
V122
D1047
C171
104
R1136
5.1/0.5W
R1127
10K
VD112
4148
VD114
4148
-48
+48
R1126
10K
C169
47U/50V
C1120
33P
C1121
33P
R1207
56K

(+)1
s
MENU1
s
(-)1
s
INPUT1
s
D5
4148
D4
4148
R23
47R
EA/VP
31
X1
19
X2
18
RESET
9
RD
17
WR
16
INT0
12 INT1
13
T0
14 T1
15
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
P00 39
P01 38
P02 37
P03 36
P04 35
P05 34
P06 33
P07 32
P20 21
P21 22
P22 23
P23 24
P24 25
P25 26
P26 27
P27 28
PSEN 29
ALE/P 30
TXD 11
RXD 10
VCC 40
GND
20
U1
MCU-MAZ1
+5VD
C2 104
X1
24M
C6
2U2 C7
22P
C8 22P
REQ
SCK
DATA
RM
KEY5
KEY2
KEY1
C1 47U
DELAY A
DGND
DGND
DGND
DISPLAY 1
DISPLAY 2
2315CLK
2314DATA
CL-TU
CE-TU
DI-TU
DO-TU 2314CLK
R8 5K6 R7 5K6 R6 5K6 R5 5K6 R4 5K6 R3 5K6 R2 5K6 R16 5K6 R15 5K6 R14 5K6 R12 5K6 R11 5K6 R10 5K6 R9 5K6
62429CLK A
62429DATA
62429CLK B
DELAY B
R13 5K6 R19 5K6 R18 5K6 R17 5K6
HOLD
BSDA MUTE
AC-3
+5+5
~5V6
0
~24V
0
~9V
0
D1 4004
D2 4004
D3 4004
C9
1000uF/16V
C4 100uF/50V
C3 100uF/50V
-30V
+30V
IN
1
GND
2
OUT 3
IC2
LM7805
+5
C10
220uF
F0
F1
+5
C5
10uF
KEY4
KEY3
R22 5K6 R21 5K6 R20 5K6
KEY5 KEY2 KEY1 KEY4 KEY3
F0
F1
F0
F1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
62429DATA 62429SCK B 62429SCK A 2315CLK DISPLAY 1 DISPLAY 2 2314DATA 2314SCK DELAY A DELAY B AC-3 MUTE +5V GND
DELAY A
DISPLAY 1
DISPLAY 2
2315CLK
2314DATA
2314CLK
62429CLK A
62429DATA
62429CLK B
DELAY B
MUTE
AC-3
+5
XP3
XS3
XS4
STANDBY1
s
HTS-292-998-B
G7
1
G6
2
G5
3
G4
4
G3
5
+5V
6
G2
7
G1
8
P1
9
P2
10
P3
11
P4
12
P5
13
P6
14
P7
15
P8
16
P9
17
P10
18
P11
19
P12
20
P13
21
P14
22
P15
23
P16
24
--V
25
SCK
26
XT
27
DATA
28
SCK
29
GND
30
NC
31
NC 32
NC 33
NC 34
G17 35
G16 36
G15 37
G14 38
G13 39
G12 40
G11 41
G10 42
G9 43
G8 44
IC1
STF16360
F0
1
F0
2
F1
33
F1
34
P1
3
P2
4
P3
5
P4
6
P5
7
P6
8
P7
9
P8
10
P9
11
P10
12
P11
13
P12
14
P13
15
P14
16
P15
17
P16
18
G1
32 G2 31 G3 30 G4 29 G5 28 G6 27 G7 26 G8 25 G9 24 G10 23 G11 22 G12 21 G13 20 G14 19
G17
35 G16 34 G15 33
VFD1C3316-1A01
+5v
-30v
R1 5K6
+5V
REQ SCK DATA
R1
5K6
R1
5K6
A?
5V6

C1
47U
C2
47U
GND GND
GND
GND
C7
471 C9
1U
C10
102
R1
20K C8
471
3
21
8 4
U1A
JRC4558
R3 30K
GND
C12 5
C11102
-12VM1
+12VM1
R4 1K
R5 1K R6 2K R7 2K
+12V -12V
C3
47U
C4
47U
GND
GND
-12VM1
R8
100 R9
100
+12V -12V
C13
1.0uF
5
6
7
U1B
JRC4558
R10
15K
R11 10K
C15
47P
C14
1.0uF
MICOUT
R2
20K
1
2
3
4
5
6
7
8
9
MIC1
1
2
3
4
5
6
7
8
9
MIC2
C16
22uF/50V
5
67
U2B
UJM4558
R12 100K
R151K
R16
680E R17
12K
C17
2200P
C19
0.022uF
C21
4.7uF/50V
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
U3
PT2399
C18
2200P
C23
1000P
C24
0.047uF
C25
0.047uF
C20
0.022uF
R18 2.7K
R19 68OE
R20 10K
R2110K
R22
10K
R26 4.7K
R23 10K
C26
4.7uF/16V
C27
100uF/16V
C28
10uF/16V
C31
0.82uF
C32
0.82uF
R28
18K
C33 100P
C2910uF/16V
C34
0.47uF/50V
R29
15K
C30
10uF/16V
+5V
1/2VCC
C22
4.7uF/50V
R13
100K
R27 4.7K
Q1
C1815
R301.5K
C35
22uF/16V
C36
220uF/16V
D1
5.6V
R31
33E
+12V
+5V
V1
9014
V2
9014
R32
47K R14
100K
R24
10K
R25
10K
DELAY1
DELAY2
C37
10U
DA-PT2315
CK2-PT2315
+9V
GND
C5
47U
GND
C38
10uF
GND
CK2-PT2315
DA-PT2315
MICOUT
LIN
11
RIN
6
VDD
2
AGND
3
REF
1
R-LOUD
7
R-BOUT
15
R-BIN
14
R-TREB
5
R-OUT 16
L-OUT 17
DGND 18 DATA 19
CLK 20
L-LOUD 9
L-BOUT 13
L-BIN 12
L-TREB 4
IC1
PT2315
C41
104 C42 104
C43
104
R33
5K6
GNDGND
C44
272
GND
C39
10uF
MICIN
R34
47K
GND
ECHOIN
C40
10uF
ECHOOUT
C6
47U
GND
~110V/220-220V 50/60Hz
S1
10A 250V F1 T3AL 250V
C45
AC103 250V
XP11
XP6 XP5 XP8 XP7 XP4
XP10 XS10
MICOUT
XP1 XS1
HTS-292-998-C
110v
w301
3P/4
220-240V
HB- O145-105