Jamo A2-SUB Schematic
Schematic 100
7654321
8
D
C
Amplifier
Amplifier .SCH
POWER
AMP IN
B
+12V
AGND
Vbridge
+StBy
-StBy
-12V
Equalizer
Equalizer.SCH
+12V
AGND
-12V POWER
+StBy
-StBy
AMP INVbridge
D
C
B
A
Title:
Project Management Sheet
Project:
A 2SUB, Subwoofer
Jamo A/S
Elmevej 8,Glyn goere
DK-7870 Roslev, Denmark
+45 99767676
Phone
+45 99767600
1 2 3 4 5 6 78
P:\Protel\WORK\A 2SUB\SCH\Amplifier\A 2SUB.prjFile: Sheet of14
Fax
Item no:
2000031
Revision:
Date / Time:D6-Feb-2003 / 09:48:56
Sheet size:
A3
Drawn by:
BKJ
A
Schematic 200
D
J201A
TP200
1
2
AGND
5
C
AGND
B
+12V
AGND
-12V
A
MH200
MOUNTING HOLE
TP201
3
PHONO_4V
J201B
4
6
PHONO_4V
C217
100n
C220
100n
0
AGND
1 2 3 4 5 6 78
TP209
TP210
13
TP208
12
R208
169k
Limiter
Limiter.Sch
LIMITER_IN LIMITER_OUT
+12VDC
-12VDC
VBRIDGE
AGND
Limiter
R228
470R
-StBy
U203
REF8A
A
K
A
NC
A
NC
TL431D
+Stby
Equalization filter
R209
30k
R210
14
4k7
U201D
TL084
JP200
* Not mounted
Auto on / off
TP234 TP235
D201
PMLL4148
R239
10k
TP247
2
3
6
7
R238
6k8
AGND
TP245
TP246
Q201
BC856
TP202 TP203
C200
100p
R202
22k
AGND
-StBy
2
3
U200A
TL084
4 11
+StBy
C229
10n
R200
22k
R201
22k
C228
10n
AGND AGND LIMITER_OUT
J204B
7 pin header
1
P201
* Not mounted / 10k
Level control
R203
10k
J204A
7 pin header
TP204
R204
150R
J202B
* Not mounted
R216
150R
* Not mounted / 100k
TP218 TP219
R217
47k
TP205 TP206
R205
1k
-12V
AGND
P202
R218
0R
2
3
J202A
* Not mounted
+12V
1
U201A
TL084
4 11
R219
TP220
47k
-12V
2
3
+12V
C209
150n
AGND
C203
220n
TP207
R207
1k5
R206
169k
U202A
TL084
4 11
C202
220n
C201
220n
AGNDAGND
1
LIMITER_IN
+12VDC
-12VDC
TP221
Vbridge
AGND
Phase control Cut off control
C218
100n
C221
100n
MH201
MOUNTING HOLE
TP229 TP230
C213
100p
R225
560k
TP228
C212
R224
9k1
+Stby
C231
100u
AGND
-StBy
0
C219
100n
C222
100n
U200U201 U202
MH202
MOUNTING HOLE
0
AGND
+12V -12V +Stby -StBy
C223
47n
1u
C224
47n
MH203
MOUNTING HOLE
0
13
12
AGND
C225
47n
J202C
* Not mounted
AGND AGND
R226
14
9k1
U200D
TL084
R234
200R
C226
47n
+Stby
R235
33k
J204C
J204D
7 pin header
7 pin header
AGND
TP232 TP233
TP231
C214
1u
AGND
R237
1k82
C227
1n
9
10
TP243
R236
10k
AGND
Power good
C215
100p
R227
270k
8
U200C
TL084
TP244
1
4
5
AGND
TP211
R220
5k6
R240
100R
TP248
Q202
BC856
C204
82n
R211
11k
9
10
AGND
J204F
7 pin header
P203A
* Not mounted / 22k
R221
TP222 TP223 TP224
3k9
C216
100u
C210
270n
R229
6M8
U201C
TL084
TP212
TP213
C205
8
220n
TP214 TP216
P203B
* Not mounted / 22k
J204G
7 pin header
R222
3k9
-StBy
R231
10k
5
6
TP236
R232
15k
R230
9k1
AGNDAGNDAGND
8
+12V
TP239
-12V
TP240
+StBy
TP241
-StBy
TP242
J207
Vbridge
PIN
J208
PGND
PIN
AGND
7
R212
12k
TP215 TP217
C206
R214
39k
220n
R213
33k
AGND
J204E
7 pin header
TP225
R223
5k6
C211
56n
AGND
TP237
7
U200B
TL084
D202
PMLL4148
7654321
J205C
6 pin header
J205D
6 pin header
J205A
6 pin header
J205B
6 pin header
C207
150n
6
R215
5
AGND
7
R233
2k7
TP226
C208
2n2
1
2
U201B
TL084
FILTER OUT
POWER
J203
2-pin connector
To LED
39k
U202B
6
5
TL084
TP238
C230
47n
AGND
LED drive
Title:
Equalizer, Auto on/off
Project:
A 2SUB, Subwoofer
Jamo A/S
Elmevej 8,Glyn goere
DK-7870 Roslev, Denmark
+45 99767676
Phone
+45 99767600
P:\Protel\WORK\A 2SUB\SCH\Amplifier\Equalizer.SCHFile: Sheet of24
Fax
Item no:
2000031
Revision:
Date / Time:D6-Feb-2003 / 09:48:01
Sheet size:
A3
Drawn by:
BKJ
+12V
-12V
+StBy
-StBy
Vbridge
PGND
AGND
D
C
B
A
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