Infinity BD-50 Schematic
DCBA
AUTOMATIC GAIN
CONTROL
CIRCUIT
1
CURRENT
LIMIT
FEEDBACK
1
2
+BATT
INPUT
R
INPUT
L
DIFERENTIAL
INPUT
G=1
Zi=100K
DIFERENTIAL
INPUT
G=1
Zi=100K
EMI
CONTROL BOARD
MODULE
LEVEL
BASS BOOST
JI-12
J1-13
CURRENT
LIMIT
NON-INVERTER
BUFER
INVERTER BUFER L+
AUTOMATIC GAIN
CONTROL
CIRCUIT
+HV
J2-1
J2-7
MANNY‘S
PULSE
WIDTH
MODULATOR
POWER
OUTPUT
STAGE
FEEDBACK
FILTER
DEMODULATOR
FILTER
DEMODULATOR
INVERTER
NON-INVERTER
R+
R-
L-
RIGHT
OUTPUT
SPEAKER
LEFT
OUTPUT
SPEAKER
2
GND
3
REM
ON/OFF
4
This document is property of
harman consumer manufacturing, EL PASO.
not to be reproduced or used for
manufacturing purposes except on
harman order on prior consent
FILTER
LOGIC
MODULE
A
QA
QB
500KHZ REF.
POWER
SUPPLY
GREEN
RED
GND
-HV
+15V
-15V
BD-50
BLOCK DIAGRAM
STATUS
INDICATORS
harman consumer manufacturing, EL PASO.
DESIGNED BY: INFINITY SYSTEMS, INC.
CHECKED BY: V. CAMPOS
RELEASED BY: M. RODRIGUEZ
DOCUMENT CONTROL: FRED COOLEY
BC
Title
Size
B
Date
Filename
BD-50 BLOCK DIAGRAM
06/17/97
ZD0210-4.S01
ZD0210
D
RELAY
Drawn by
R. MACIAS
1
ofSheet
3
4
RevNumber
04
8
DCBA
1
2
3
+12V
GND
REM.
J2
0.001uF
2
C23
1uF
1
J1C
0.001uF
5
C3
0.001uF
BD POWER SUPPLY
LOGIC PCB ASSY
SHEET 7
C19
J1-1
JI-2
J1-4
C24
C4
0.1uF
21
C27
C14
DB1A
1
DB1B
2
DB1D
4
F1
20A
0.1uF
1N4148
33
1N4148
R2
33
0.001uF
D26
R1
D27
INPUT IND
L3
1
C28
0.1uF
Q1
IIRF1010
FB1
IRF1010
Q2
42
3
FB2
C21
C18
1uF
6800uF/16V
T1
3
2
1
GND
AD250 XFMR
1
FES16ATX4
+37V
D25
C63
C65
C77
1uF
C78
1uF
R33
1.5K 1W
2
GND
-37V
+15V
3
GND
-15V
D24
1uF
6
C59
1uF
C60
1uF
C61
1uF
C62
D23
1uF
5
C55
1uF
C56
1uF
C57
1uF
C58
D22
1uF
1uF
U3
8T
#20
4
D10
UF4002
UF4002
D9
1000uF/25V
C16
1uF
C15
1uF
1000uF/25V
C31
C26
1
C73
0.1uF
C74
0.1uF
2
7815
U4
3
1
1
3
7915
This document is property of
harman consumer manufacturing, EL PASO.
4
not to be reproduced or used for
manufacturing purposes except on
harman order on prior consent
AB CD
harman consumer manufacturing, EL PASO.
DESIGNED BY: INFINITY SYSTEMS, INC.
CHECKED BY: V. CAMPOS
RELEASED BY: M. RODRIGUEZ
DOCUMENT CONTROL: FRED COOLEY
Title
Size
A
Date
Filename
BD-50 POWER SUPPLY
ZD0210
06/17/97
ZD0210-4.S06
Drawn by
6
RevNumber
04
R. MACIAS
8
ofSheet
4
FEDCBA
1
2
RIGHT
INPUT
LEFT
INPUT
P1A
P1B
SIP1A
1
100K 1%
SIP1B
3
100K 1%
SIP1D
8
100K 1%
SIP1C
5
100K 1%
2
4
3
4
7
6
2
3
SIP2B
6
5
C47
22pF
SIP2A
2 1
100K 1%
-
TL084
+
C50
22pF
100K 1%
C70
22pF
SIP2D
7 8
100K 1%
-
TL084
+
SIP2C
100K 1%
C68
22pF
-15V +15V
U2:A
1
U2:B
7
56
DB3G
DB3F
DB3I
DB3O
DB3N
J1-7
J1-6
J1-9
J1-15
J1-14
J1-12
DB3L
1.18K 1%
SHEET 3
CONTROL PCB ASSY
C54
1uF
R62
1K 1%
J1-13
DB3M
10
9
R70
13
12
+
TL084
-
R69
6.98K 1%
C69
100pF
C48
100pF
R61
6.98K 1%
-
TL084
+
R55
100
U2:C
U1:D
8
14
+15V
C43
R71
10
R51
100
1uF/50V
R63
10
C49
C53
1uF
1uF PE
100uF/16V
C64
470pF
1uF PE
100uF/16V
470pF
C51
C52
C44
C45
npe
npe
11
13
5
3
1
DB2E
J2-1
DB2C
J1-3
SHEET 4
MODULATOR PCB ASSY
2
DB2K
J2-7
DB2M
J3-2
3
R25
470
R30
1K
R37
3.6K
R42
470
R46
1K
R59
3.6K
+8VA
R31
2.2K
+8VA
R47
2.2K
R34
R45
R54
V?
V?
V?
R28
V?
R19
R57
10K
10K
C71
2
3
0.001uF
13
12
R26
49.9K 1%
+15V
-
TL084
+
-15V
R29
49.9K 1%
-
TL084
+
C72
0.001uF
4
1
1
U1:A
U1:D
1
3.3uF npe
14
C29
R23
240K
C30
npe
3.3uF
R27
240K
DB3C
DB3D
R24
D11
R21
1N4148
D12
910
J1-3
J1-4
1N4148
910
D13
1N4148
D14
1N4148
R35
100K
R36
100K
R38
2.2K
R39
2.2K
0.1uF
C37
0.1uF
R48
10K
C34
+4V
+4V
10
R49
10K
6
5
9
R41
20K
-
TL084
+
R40
20K
-
TL084
+
3.3uF npe
-15V
+8VA
U1:B
C35
3.3uF npe
U1:C
C36
7
D15
1N4148
OVER CURRENT
SHEET 7
3
D16
1N4148
8
TO Q5 COLLECTOR
SHEET 5
TO Q8 COLLECTOR
SHEET 5
4
This document is property of
harman consumer manufacturing, EL PASO.
not to be reproduced or used for
manufacturing purposes except on
harman order on prior consent
AB C D E F
harman consumer manufacturing, EL PASO.
DESIGNED BY: INFINITY SYSTEMS, INC.
CHECKED BY: V. CAMPOS
RELEASED BY: M. RODRIGUEZ
DOCUMENT CONTROL: FRED COOLEY
Title
BD-50 MAIN BOARD
Size
ZD0210
C
Date
Filename Sheet of
06/17/97
ZD0210-4.S02
Drawn by
R. MACIAS
2
4
RevNumber
04
8
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