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10R
C13L
R47L
10N
4N35
B
A
6
C
C
5
NC
INPUT
E
4
U2L
4V RMS
CONNECT TO M1085
PREAMP PCB
MX1L
CLP1
1
CLP2
2
AMP-REF.
3
AMP-IN
4
C1L
16V
33u
ENCLOSE CIRCUITRY IS OFF-PCB.
13A/85C
50Hz
4n7
22n
370VA
CSA
CSA
#1248E
230V A.C 50HZ LINE
EXPORT VERSION
BROWN
GRN/YEL
BLUE
ENCLOSE CIRCUITRY IS OFF-PCB.
13A/85C
BR1
TB1
TB2
T1
60Hz
4n7
22n
370VA
CSA
CSA
#1248
C1
C2
GND
EY1
N.A. VERSION
BLACK
GREEN
WHITE
120V A.C 60HZ LINE
M1085PA.SCH_DATABASE_HISTORY
MODEL(S):-
SR-300
#
DATE
VER#
DESCRIPTION OF CHANGE
1
JUL/12/95
1.10
PC#4850/4851 REMOVE R7L, C13L ADD D26L
2
.
.
D27L, R43L. R19L FROM 510R TO 120R
3
NOV/24/95
1.20
.
ADDED O/P JACKS CORRECTED I/P WIRES
4
DEC/08/95
1.30
PC#4971
ADDED BATTERY BYPASS CIRCUIT
5
MAR/30/99
1.40
R11L_15K->12K
6
APR/27/99
1.50
PC#5890_RT1L_100K->10K_ADD_R50L,
7
.
.
R51L,Q15L,D30L
8
OCT/08/99
1.60
HEATSINK_SYMBOL_ADDED
9
SEP/30/02
1.70
CORRECTION_R27L/R28L->1/8W-FLM-PRF
APR/30/03
10
1.80
ADD_R8AL_FOR_BIAS_ADJUSTMENT
33R
R45L
PIN 8 U1
D16L
D17L
1
D15L
2
D14L
3
D13L
C2L
33pF
0.1%
681R
D1L
R4L
750R
C9L
R15L
100p
BC560
0.1%
2
Q1L
3
4K12
8
1
R1L
3
U1L
270R
1/2
0.1%
R14L
33078
37K9
R2L
0.1%
7K96
R3L
10K
R8AL
R8L
56K
T10A
C3L
63V
2u2
A
R9L
4K7
-0.58V
T10A
Q3L
12K
MPSA56
R11L
5
U1L
390R
R10L
6
100K
-0.85V
R6L
20K
R12L
GND
D1
+55V
PX6A02
TB5
10A-SB
D2
C3
4700u
TB6
63V
F2
PX6A02
GND
GND
PX6A02
C4
4700u
D3
PX6A02
63V
-55V
F3
D4
-21V
R1
R3
IN4004
10A-SB
2K2
2M2
63V
R2
D7
1u
D5
5251B
IN4004
10K
C5
22VZ
ZD1
GND
D6
11
12
13
14
15
16
V
17
18
19
20
21
22
23
24
25
+16V_BAT
100K
R20L
R21L
D26L
R5L
274R
33R2
R19L
Q6L
120R
BC560
D2L
C11L
R43L
HEATSINK
1n
390R
+0.60V
Q8L
D3L
MJE15030
BAT85
100n
Q2L
C4L
BC550
R27L
1/8W
MPSA06
150R-FP
Q4L
R25L
270K
3K16
R50L
Q15L
D5L
BC550
33K
R51L
D6L
D30L
RT1L
R26L
AGND
10K
3K16
R28L
Q5L
1/8W
MPSA56
150R-FP
C5L
100n
R18L
D4L
HEATSINK
6K98
33078
BAT85
1/2
-0.58V
390R
7
R13L
4
Q10L
Q7L
MJ15031
BC550
C12L
1n2
R23L
R24L
D27L
274R
33R2
10R
33R
R46L
R44L
C10L
10N
KIL
-18V
63V
2u2
C6
GND
N
+16V_BAT
+55V
33R
R29L
HEATSINK
D7L
1N5402
D11L
AGND
Q9L
MJL21193
R30L
2K2
25.4VRMS
1
150 WATTS @ 4R
GAIN = 6
L1L
16V
C6L
0R15
1N5246A
25V
R31L
D8L
330u
C8L
16V
C7L
C23L
0R15
220n
1N5246A
25V
25V
R33L
D9L
100u
330u
R38L
3R9
D25L
AGND
10K
R42L
2
1N5402
D12L
HEATSINK
R35L
2K2
Q11L
D10L
MJL21194
68R
R36L
-55V
-16V_BAT
MJE15031
MJL21194
MJF6668
MJL21193
MJE15030
MJF6388
1. ADJUST R9 ACCROSS TP1&TP2 FOR
2. Q3 IS THERMALLY COUPLED TO
B
C
E
B C E
3.
MPSA06
B
C
E
BC550C
MPSA56
2N5638
BC560C
4. Reference with a "L" suffix
E B C
D S G
C B E
5. ALL UNMARKED DIODES IN4148
DATE:
APR/30/2003
MODELS:
SR-300
YORKVILLE
NAME:
M1085AMP.SCH
PCB#&VER:
M1085
CIRCUIT WITHIN BOX IS NOT
ON POWER AMP BOARD
+55V
MX2L
GOLD
1
-55V
2
AGND
T
R
S
USE
3
+55V
4
O/P
5
O/P
AGND
5uH
R37L
1W
10R
NOTES:
4.5 mV BIAS
REMOVE R8AL AS REQUIRED TO ADJUST BIAS
HEAT SINK
TP
TEST POINT
will have a "R" suffix for
the right channel amplifier.
SCH ISSUE:
1.80
TITLE:
AMPLIFIER_150W
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