Page 1
Page 2
Page 3
Page 4
BA
DC
VOUTVIN
2
1
VOUTVIN
D19
1N4004
C16
10K,1W
C20
10K,1W
1N4004
T5A/250V
T5/250V
+15V
31
32
F1
F2
100n/100V
F5
100nF/100V
F6
T5A/250V
+
C26
+
C33
+70VL
+70VR
T5A/250V
220R,1/2W
R70
100uF/25V
100uF/25V
7.5K
R69
-15V
T15
T17
T7
TO AMP L
TO AMP R
T8
0VP(R)
T10
T11
0VP(L)
CHASSIS
T14
-70VL
-70VR
+8V
D21
8.2V
0VD
PWRL+
-15V
1
+80V
+
1000uF/25V
T9
FROM TFR.#2
FROM RECTIFREFROM TFR.#1FROM RECTIFRE
T12
T13
-
100nF/160V
1
A
C
+
BR1
A
C
PB206
2
100nF/160V
C15
3
C22
T1A/250V
F3
CON10
TO TFR1 & TFR2
75V AC
75V AC
1
2
3
CON11
2
TO TFR1 & TFR2
18V AC
18V AC
1
2
3
100nF/160V
C17
F4
T1A/250V
100nF/160V
4
C21
T16
F7
T1.6A/250V
100nF/100V
WIRE SOLDERD
BR3
ON PCB
+24V
1
A
C
+
A
C
2
3
C30
F8
T1.6A/250V
100nF/100V
+
C25
100nF/100V
PB206
4
C29
-
2200u/35V
-24V
PB206
4
-
C31
3
+
2200u/35V
BR2
C24
1
A
C
A
C
3
+
2
3300uF/35V
C14
0VA
10000uF/100V
1000uF/25V
C23
C28
100nF/100V
C32
C19
C27
+
C18
+
+
+
10000uF/100V
0VD0VREF
+
3300uF/35V
R67
R68
D20
-80V
REG1
LM7815
GND
GND
LM7915
REG2
1
2
3
4
MODEL
PCBNO
DES' BY
APPD'BY
REV
21-4-001 F7 & F8 VALUE CHANGE TO 1.6A FROM 1A
SIGNDISCRIPTIONDATE
STA-320
9807002-3
Surajit Surajit
Title:-
Size Rev
SCHEMATIC FOR POWER SUPPLY PCB
Drg.Number:-
9807001
Date:Filename:-
21.4.00
POW-OP.S02
Drawn by:Sheet Of
2
4
1
2
A B C D
Page 5
1
2
3
4
RevSize
4
OfSheet
Shrikant
C9
10uF/63V
0VP
Drawn by:-
9806044
SCHEMATIC FOR DRV PCB
07/10/99
NEWDRV1.S01 1 1
1nF
R39
470R
+
BC560
BC560
+24V
10K
Q12
C7
DCBA
R33
10K
R35
Q16
Drg.Number:-
BC550
0VP
BC550
Title:-
Date:-
Filename:-
Q17
TO CON8 OF AMP PCB (RIGHT)
TO CON5 OF AMP PCB (LEFT)
1234567
CON2
Q14
24K
1000u/6.3V
+
C10
STA-320
9806045-4
REVISED DATE:29\3\99
2.2K R38
R40
PCBNO
DES' BY
MODEL
SPSQ6 & Q10 CHANGED TO TIP29C & TIP30C FROM BC549 & BC559 RESP.21/04/003
SPSC12 AND C13 ADDED7/10/992
APPD'BY
SPS
DRN BY
1234567
CON1
TO CON7 OF AMP PCB (RIGHT)
TO CON4 OF AMP PCB (LEFT)
0VP
DRIVER PCB
+80V
R3
Q3
1K,1%
Q4
Q5
MPSA42
MPSA92
MPSA42
0VP
C11
680R
D4
R10
68R
PR1
R9
D5
D6
1N4148
N.F.
1N4148
1N4148
15K,1%
D9
1N4148
D7
400mW
D8
R15
6.2K
R14
33K
1N4148
R11
47n/200V
220R
C12
15nF
3V3
R16
Q6
TIP29C
3K,1%
R19
D17
*
D16
R21
1N4148
*
1N4148
D19
D18
*
680R
*
1N4148
1N4148
MPSA42
R23
Q10
Q9
D11
1N4148
220R
15nF
TIP30C
400mW,3V3
D10
R26
6.2K
R25
33K
D12
C13
1.5K,1%
R30
1N4148
R29
D14
D13
680R
0VP
1N4148
1N4148
D15
1N4148
R34
270R
-80V
Q13
MPSA92
R37
N.F
R36
47K
N.F.
C6
Q15
MPSA92
N.F
C8
0VREF
SIGN
ENGG
DESCRIPTIONDATEREV.
D16,D17,D18 & D19 ADDED FROM TRACK SIDE
4 24/1/02
C1
47n/200V
0VP
R1
Q1
1.2K
D1
100K
1N4148
R2
100K
R5
MPSA92
CONTROL-L
220pF/500V
1K,1%
R6
27K
D3
1N4148
D2
400mW,33V-5%
MPSA42
0VREF
Q2
R4
C2
R7
27K
47n/200V
R8
15K,1%
C3
R13
470R
R12
470R
Q8
Q7
2K,1%
2SA970
2SA970
R17
R18
OVA
12K,1%
12K,1%
0VREF
R20
2K,1%
IN-L
R22
CLIP-L
C4
#
MPSA42
1.5K,1%
Q11
#
R24
R27
10K
R28
R32
6.8K,1%
R31
6.8K,1%
0VREF
C5
47n/200V
0VP (P.S.U.)
0VP
CON3
12345
CONTROL-L
+80V
0VREF
CON5(AMP/LEFT)
TO MAIN PCB
8
7
6
IN-L
-80V
CLIP-L
CON9(AMP/RIGHT)
+24V
OVA
NOTE:-
* MARKED COMPONENT MOUNTED FROM TRACK SIDE
A B C D
1
2
3
4
Page 6
1
2
3
4
2
Shrikant
1 2
Sheet Of
Drawn by:-
DCBA
Title:-
STA-320
VAL
Q21
TEMP+L
2
1
CON6
9806042
23/2/02
NEWAMP1.S01
Drg.Number:-
SCHEMATIC FOR AMP PCB
Size Rev
MODEL
Date:-
9806043
DES' BY
PCBNO
SHRI
Filename:-
APPD'BY
DRN BY
SIGN
ENGG
+70V-L
C12
100n
C11
22uF/100V
0VP-L
D16
1N4004
T1
+
POWER AMPLIFIER(LEFT CHANNEL)
MJ21194
R43
T2
R44
10R,1W
OUTPUT-L
3uH
L1
R45
4.7R,3W
100n
C14
0VP-L
R48
BTB24-400
G
2
1
Q23
0VP-L
T3
D17
1N4004
MJ21193
0VP
T4
-70V-L
TAG2
+
C17
C16
22uF/100V
100n
0VP-L
Q24,Q25,Q33 & Q34 CHANGE FROM MJ15023 TO MJ21193
Q19,Q20,Q28 & Q29 CHANGE FROM MJ15022 TO MJ21194 &
T5
23/02/02
2 SHRI
1 21-4-00 Q18 & Q26 CHANGE TO MJ15030 & MJ15031 FROM 2SC4793 & 2SA1837
REV. DATE DESCRIPTION
C13
330pF/500V
Q19
MJ15030
Q20
MJ21194
Q18
CON4
0R33,7W
(VT)
R42
0R33,7W
(VT)
10R,1W
R41
7654321
0VP-L
0R33,7W
(VT)
Q25
R47
0R33,7W
(VT)
Q24
10R,1W
R46
Q26
BC549
Q22
7654321
CON5
C15
MJ21193
MJ15031
330pF/500V
A B C D
1
2
3
4
Page 7
1
2
3
4
2
2
Shrikant
Sheet Of
Drawn by:-
DCBA
Title:-
STA-320
Q30
TEMP+R
2SD1763
2
1
CON9
9806042
23/02/2002
NEWAMP1.S02 2
Drg.Number:-
SCHEMATIC FOR AMP PCB
Size Rev
MODEL
SHRI
Date:-
9806043
DES' BY
PCBNO
SHRI
Filename:-
APPD'BY
DRN BY
SIGN
ENGG
+70V-R
C19
100n
C18
22uF/100V
0VP-R
D18
1N4004
MJ21194
T6
+
POWER AMPLIFIER(RIGHT CHANNEL)
R51
T7
R52
10R,1W
OUTPUT-R
3uH
L2
R53
4.7R,3W
100n
C21
0VP-R
R56
BTB24-400
G
2
1
Q32
0VP-R
T8
D19
1N4004
MJ21193
0VP
T9
-70V-R
TAG2
+
C24
C23
22uF/100V
100n
0VP-R
T10
Q24,Q25,Q33 & Q34 CHANGE FROM MJ15023 TO MJ21193
Q19,Q20,Q28 & Q29 CHANGE FROM MJ15022 TO MJ21194 &
Q27 & Q35 CHANGE TO MJ15030 & MJ15031 FROM 2SC4793 & 2SA1837
23/02/022
21-4-00
1
REV. DATE DESCRIPTION
C20
330pF/500V
Q28
MJ15030
Q29
MJ21194
Q27
CON7
R50
(VT)
R49
0R33,7W
0R33,7W
10R,1W
0VP-R
7654321
0R33,7W
(VT) (VT)
R55
0R33,7W
(VT)
10R,1W
R54
BC549
Q31
7654321
CON8
Q34
Q33
Q35
C22
MJ21193
MJ15031
330pF/500V
A B C D
1
2
3
4
Page 8
1
2
3
4
RevSize
2
OfSheet
DCBA
LED CIRCUIT
Drg.Number:-
Title:-
STA-320
Drawn by:-
9803067
22/4/98 Shrikant
Date:-
9803068-1
LED.S01
REVISED DATE:-06\01\2001
Filename:-
CLIPLED-L
D1
RED
CLIPLED-R
D2
RED
D3
RED
PWRLED
RED
PROTECT LED
D4
OVER HEAT
D5
RED
SUBWOOFER
D6
YEL
D7
GRN
STEREO
D8
LINK
GRN
BRIDGE
R1
MODEL
SPS
SPS
PCBNO
DES' BY
SPS
APPD'BY
DRN BY
SIGN
ENGG
1
CON1
CLIPPED+L
1
4
3
2
CLIPPED+R
CLIPPED-L
6
5
789
PWRL+
CLIPPED-R
-15V
10
OVH-
OVH+
PROTECT LED
0VD
TO CONTROL PCB CON7
2
CON2
2
1
SLED
SUBLED
3
3
BLED
TO CONTROL PCB CON8
A B C D
RESISTOR R1 ADDED
RESISTOR R1 CHANGED TO LINK
23/1/991
06/1/01
1
P1 25/5/98 PIN 5 AND 6 OF CON1 INTERCHANGE
REV. DATE DESCRIPTION
4
Page 9
Page 10
Page 11
ModificationfortheSTA-162Limiterwiring
Withthismodificationthelimitercircuitwill
besetbeforethevolumecontrol.
Thispicture
showsthe
circuit
thechange
before
Thispicture
showsthe
circuit
thechange
after
Page 12
1
2
3
4
2
Shrikant
1 2
Sheet Of
Drawn by:-
DCBA
Title:-
STA-320
VAL
Q21
TEMP+L
2
1
CON6
9806042
23/2/02
NEWAMP1.S01
Drg.Number:-
SCHEMATIC FOR AMP PCB
Size Rev
MODEL
Date:-
9806043
DES' BY
PCBNO
SHRI
Filename:-
APPD'BY
DRN BY
SIGN
ENGG
+70V-L
C12
100n
C11
22uF/100V
0VP-L
D16
1N4004
T1
+
POWER AMPLIFIER(LEFT CHANNEL)
MJ21194
R43
T2
R44
10R,1W
OUTPUT-L
3uH
L1
R45
4.7R,3W
100n
C14
0VP-L
R48
BTB24-400
G
2
1
Q23
0VP-L
T3
D17
1N4004
MJ21193
0VP
T4
-70V-L
TAG2
+
C17
C16
22uF/100V
100n
0VP-L
Q24,Q25,Q33 & Q34 CHANGE FROM MJ15023 TO MJ21193
Q19,Q20,Q28 & Q29 CHANGE FROM MJ15022 TO MJ21194 &
T5
23/02/02
2 SHRI
1 21-4-00 Q18 & Q26 CHANGE TO MJ15030 & MJ15031 FROM 2SC4793 & 2SA1837
REV. DATE DESCRIPTION
C13
330pF/500V
Q19
MJ15030
Q20
MJ21194
Q18
CON4
0R33,7W
(VT)
R42
0R33,7W
(VT)
10R,1W
R41
7654321
0VP-L
0R33,7W
(VT)
Q25
R47
0R33,7W
(VT)
Q24
10R,1W
R46
Q26
BC549
Q22
7654321
CON5
C15
MJ21193
MJ15031
330pF/500V
A B C D
1
2
3
4
Page 13
1
2
3
4
RevSize
4
OfSheet
Shrikant
C9
10uF/63V
0VP
Drawn by:-
9806044
SCHEMATIC FOR DRV PCB
07/10/99
NEWDRV1.S01 1 1
1nF
R39
470R
+
BC560
BC560
+24V
10K
Q12
C7
DCBA
R33
10K
R35
Q16
Drg.Number:-
BC550
0VP
BC550
Title:-
Date:-
Filename:-
Q17
TO CON8 OF AMP PCB (RIGHT)
TO CON5 OF AMP PCB (LEFT)
1234567
CON2
Q14
24K
1000u/6.3V
+
C10
STA-320
9806045-4
REVISED DATE:29\3\99
2.2K R38
R40
PCBNO
DES' BY
MODEL
SPSQ6 & Q10 CHANGED TO TIP29C & TIP30C FROM BC549 & BC559 RESP.21/04/003
SPSC12 AND C13 ADDED7/10/992
APPD'BY
SPS
DRN BY
1234567
CON1
TO CON7 OF AMP PCB (RIGHT)
TO CON4 OF AMP PCB (LEFT)
0VP
DRIVER PCB
+80V
R3
Q3
1K,1%
Q4
Q5
MPSA42
MPSA92
MPSA42
0VP
C11
680R
D4
R10
68R
PR1
R9
D5
D6
1N4148
N.F.
1N4148
1N4148
15K,1%
D9
1N4148
D7
400mW
D8
R15
6.2K
R14
33K
1N4148
R11
47n/200V
220R
C12
15nF
3V3
R16
Q6
TIP29C
3K,1%
R19
D17
*
D16
R21
1N4148
*
1N4148
D19
D18
*
680R
*
1N4148
1N4148
MPSA42
R23
Q10
Q9
D11
1N4148
220R
15nF
TIP30C
400mW,3V3
D10
R26
6.2K
R25
33K
D12
C13
1.5K,1%
R30
1N4148
R29
D14
D13
680R
0VP
1N4148
1N4148
D15
1N4148
R34
270R
-80V
Q13
MPSA92
R37
N.F
R36
47K
N.F.
C6
Q15
MPSA92
N.F
C8
0VREF
SIGN
ENGG
DESCRIPTIONDATEREV.
D16,D17,D18 & D19 ADDED FROM TRACK SIDE
4 24/1/02
C1
47n/200V
0VP
R1
Q1
1.2K
D1
100K
1N4148
R2
100K
R5
MPSA92
CONTROL-L
220pF/500V
1K,1%
R6
27K
D3
1N4148
D2
400mW,33V-5%
MPSA42
0VREF
Q2
R4
C2
R7
27K
47n/200V
R8
15K,1%
C3
R13
R12
470R
470R
Q8
Q7
2K,1%
2SA970
2SA970
R17
R18
OVA
12K,1%
12K,1%
0VREF
R20
2K,1%
IN-L
R22
CLIP-L
C4
#
MPSA42
1.5K,1%
Q11
#
R24
R27
10K
R28
R32
6.8K,1%
R31
6.8K,1%
0VREF
C5
47n/200V
0VP (P.S.U.)
0VP
CON3
12345
CONTROL-L
+80V
0VREF
CON5(AMP/LEFT)
TO MAIN PCB
8
7
6
IN-L
-80V
CLIP-L
CON9(AMP/RIGHT)
+24V
OVA
NOTE:-
* MARKED COMPONENT MOUNTED FROM TRACK SIDE
A B C D
1
2
3
4
Page 14
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