GENERAL DESCRIPTION:
For the convenience of the users, the AC Mains of the amplifier
series is controlled by the power selector, it provide the two
kinds of voltages: 110V-120V / 220V-240V
For greater operational flexibility, two Microphones can be in-
serted in the amplifier, on which also have "AUX" inputs, which
can provide for the use of radio tuner, CD player and other high
impedance, high power input .
The rear panel selector switch must be tuned in to "PHON" po-
sition when the amplifier is playing recorder.
"MIC", "AUX.CD", "PHON" positions are all set on volume con-
trollers, which can freely adjust the volume needed by users.
You will find it safe and reliable to use the Series; AC
selector is made of insulating material and the rear panel is ins-
talled with connecting-ground terminal. Any other components
are all considered Safety-factor while assembling.
--1--
CAUTION
You shall hold the plug firmly to avoid the pull-out of power line
and risk occurring when you pull the power line out from AC
outlet.
{{{
1
2
3
VR1
A50K
VR2
A50K
VR3
A50K
111
222
333
L
R
L
R
R58
56K
R61
10K
R60
27K
R13 5.6K
R14 5.6K
R16
2.2K
R17
2.2K
R15
10K
R20
270
R19
100K
R24
330K
R25
5.6K
R22
18K
R23
390K
R20
270
R21
680
C18
470P
C17
100P
C15
(MC).0033U
C16
(MC).015U
C13
470
C12
.001U
C20
1U/50V
C11
10U/16V
C14
47U/25V
C10
.001U
S1
Q3
C1815
Q4
C1815
R41
100
R40
1.2K
R37
12K
R38
8.2K
D4
4001
C30
47U/25V
C31
100U/50V
R34
1W 2.2K
R35
1W 47
R36
10K
Q7
C1815
Q8
C1815
C33
100U/50V
C32
47U/25V
D5
1/2W 9.1V
R39
4.7K
AC
1
AC
2
+
3
-
4
B1
C21
(MC).0047U
C22
(MC).0047U
C23
2200U/35V
C24
2200U/35V
D1
4001
PT
POW-SW
FUSE
AC 22OV
50HZ/50W
C28
10U/16V
CN4
LED POW
R27
33K
R29
47K
1K
R26
R28
47K
C25
10U/16V
C26
22U/16V
Q5
C1815
Q6
C1815
C29
33U/16V
R32
33K
R33
15
D2
4148
1
2
3
R31
12K
R30
12K
C27
33U/16V
R59
47K
R62
82K
Q19
C1815
Q20
C1815
Q16
C1815
Q17
C1815
Q18
C1815
Q14
D718
Q12
C2240
Q13
A1015
Q11
A1015
Q9
C2240
Q10
C2240
R82
22K
R81
7.5K
R83
7.5K
R87
1K
R86
7.5K
R84
4.7K
R67
1K
R85
12K
R68
33P
R63
680
R78
270K
R79
10K
R64
22K
R65
3.9K
R69
82K
R71
820
R70
5.6K
R72
75K
R73
680
R80
10K
R75
75K
R76
820
R77
5.6K
D12
4148
D13
1/2W 3V
C58
100U/16V
C57
10U/16V
C40
.47U/50V
C43
10U/16V
C44
1U/50V
C46
.47U/50V
C55
(MC).033U
C54
.22U/50V
C53
1U/50V
C38
10U/16V
C56
10U/16V
VR7
A50K
VR4
W50K
VR5
W50K
VR6
W50K
6
5
7
U1B
MC4558G
2
3
1
8
4
U1A
MC4558G
C41
33P
C59
(MC).068U
C45
150P
C42 33P
C49
33P
C51
10P
C48
(MC).015U
C50
(MC).0022U
C52
330P
R66
3.9K
C47
33P
R74
5.6K
1
2
1
2
Q15
D718
R49
4.7K
R50
100
R55
5W 0.2
R51
10
R47
150
R48
4.7K
R52
15
R54
27K
R53
100
R43
2K
R57
10
R46
820
R44
39K
R45
5.6K
R42
22K
D6
1W 18V
D7
4001
C34
.47U/50V
C37
22P
C35
100U/50V
C36
100U/50V
D11
4148
D10
4148
D9
4148
D8
4148
R56
5W 0.2
OPT-30W
R86
1W 10
1
2
COM
4 OHM
8 OHM
16 OHM
100V
PU-PCB POW-PCBPOW-PCBPOW-PCB
VOL-PCB
CN9
C39
100P
M1
M2
GND
AUX
GND
OUT
M1
M2
GND
AUX
GND
OUT
1
2
OT
CN6
CN8
PRIORITY
CN5 PT IN
C
N
2
~
6
OUT
+23V
-VCC
+VCC
AUX
PHONO
1
2
3
4
5
6
CN7
1
2
3
4
5
6
CN2
!
!
!
!
!
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