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DRAWING NO.
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DRAWING TITLE
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DATE
Filename
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DESCRIPTION OF CHANGE
J:\PROJECTS\A10amp\L829pb_Main_PCB\Circuits_&_PCB\wip\L829ct1_6.prj
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Alpha 10 Amp Main
Circuit Diagram
L829CT1
SJB
10-Jul-1998
INITIALS
Date Printed
1
5
Sheet
of
Notes:
D1
15V 400MW
R1
1R0 FU
R7
470R FU
D3
10V 400MW
+
C1
100U EL 100V
Vin
I
ADJ
A
Vout
O
Z1
LM317T
R22
220R SM1%
R24
2K4 SM1%
+
C6
22U EL
+15V
+
C7
10U EL
+15V Regulator
D2
15V 400MW
R2
1R0 FU
R8
470R FU
D4
10V 400MW
+
C2
100U EL 100V
R23
220R SM1%
R25
2K4 SM1%
+
C8
22U EL
+
C9
10U EL
Vin
I
ADJ
A
Vout
O
Z2
LM337T
-15V Regulator
-15V
D14
1N4003F
D15
1N4003F
-SUP
+SUP
C20
4N7 PP
C21
4N7 PP
PAN1
ATE_PAD
NAN1
ATE_PAD
PPRE1
ATE_PAD
NPRE1
ATE_PAD
NSUP1
ATE_PAD
PSUP1
ATE_PAD
PGND1
ATE_PAD
HS
HS1A
TO220HS13REG
HS3A
TO220HS23REG
Q1
2SC5248
Q4
2SA1964
HS6N
TO220HS23TR
R3
1R0 FU
RLY1A
RLY SPST SPKR
RLY2A
RLY SPST SPKR
RLY5NA
RLY 51SB12T
RLY5NB
RLY 51SB12T
Output
VI Latch
VI Cut
ABiasRef
Input
PWRAMPL
l829ct3_6 SCH
Output
VI Latch
VI Cut
ABiasRef
Input
PWRAMPR
l829ct4_6 SCH
R26
22K SM
R36
47K SM
+
C22
10U EL
RLY3A
RLY SPST SPKR
RLY4A
RLY SPST SPKR
R47
68K SM
R48
180R SM
ABSUP
-SUP
VI Cut-out latch
VIRESET1
ATE_PAD
SGND1
ATE_PAD
EMC
1
N
F
SK1A
PHONO4G
N
F
SK1B
PHONO4G
L&R Inputs
R27
22K SM
LOut
ROut
8
4
Z3C
TL072 SM
8
4
Z4C
TL072 SM
+15V
C38
680P PP
C39
680P PP
1
2
3
SW1NA
2PCO_VERT
4
5
6
SW1NB
2PCO_VERT
Pre_Outputs
Top+
Top-
SK2A
CAMCON_G
Bot+
Bot-
SK2B
CAMCON_G
CHASS
SK2C
CAMCON_G
Top+
Top-
SK3A
CAMCON_G
Bot+
Bot-
SK3B
CAMCON_G
CHASS
SK3C
CAMCON_G
C29
470P SM
C30
470P SM
C40
10N SM
C41
10N SM
C42
10N SM
C43
10N SM
SPKB1
ATE_PAD
SPKA1
ATE_PAD
SPKB2
ATE_PAD
SPKA2
ATE_PAD
PRE1
ATE_PAD
PRE2
ATE_PAD
HS8N
TO220HS23TR
+PRE
-PRE
LVProt
RVProt
ACDet
Fault
Powerup
FAN
RESET
CONTROL
l829ct2_6 SCH
Vin
I
GND
G
Vout
O
Z6
7805
C31
100N SM
+
C10
10U EL
+5V
Control Supply
L
N
E
N
E
L
SK4
EC3
C44
4N7 MAINS
RLY6A
RLY SPDT 24V
D18
1N4003F
D19
1N4003F
+
C48
3M3 EL
C85
100N SM
Vin
I
GND
G
Vout
O
Z7
7808
C86
100N SM
C46
4N7 MAINS
C47
4N7 MAINS
+
C45
10U EL
+8V
HS
HS2NA
TO220HS08REG
230V
115V
0V
BLUE
GREEN
BLUE
BLACK
BROWN
ORANGE
GRN/YEL
TX1
L831TX
F4
AS2A5
F5
AS4A_115V
+8V
-15V
Fault
ACDet
ACDet
R71
4K7 SM
Q12
BC847B
+UREG
+UREG
EMC Shield
SH1
EMCMAINS
1
2
3
4
5
6
SKT1
JST 6W HEADER
ACDet
+SUP
+15V
-15V
-SUP
3rd Ch. Power
Digital Supply
1
2
3
4
5
6
7
8
SK11
WTRAP2.5X8V
+15V
-15V
Pre-Amp Audio Input
Kit Masks:
1) For Integrated Amp use...
N, F inclusive
2) For Power Amp use...
P,S,F inclusive
Designators ending in...
N - For integrated amp only,
P - For power amp only,
R - For power amp with remote only,
S - For power amp with no remote
only,
X - Other end of wire link.
!
!
!
!
!
BARCODE LABEL
BARCD
BARCODE
S J B
SJB
SJB
Update Box
UPDTBX
UPDATE_BOX
Photo Strip
PS
PHOTO_STR P
FD_1
FIDUCIAL
FD_2
FIDUCIAL
PD5
TOOLING
PD7
TOOLING
PD8
TOOLING
Replace with same
type component only
!
LHC
2
RHC
3
1
4
L
5
6
R
7
SK5
HPSKT
R4
330R 1W CF
R5
330R 1W CF
R6
100R W2 CF
R49
100R W2 CF
LOut
ROut
D16
BAS16W SM
Blue
1
Dark Grey
2
Orange
3
SK7
CAGECLAMP3
Grey
1
Light Green
2
Light Green
3
G ey
4
SK8
CAGECLAMP4
Y1
TX W RE CL P
HP1
HP2
R81
180R SM
R82
180R SM
UREG1
ATE_PAD
PDIG1
ATE_PAD
PMPU1
ATE_PAD
TH3
PTHMA NS
+
C32
22U EL
+
C33
22U EL
SCREEN
SCREEN
SCREEN
SCREEN
SW1NC
2PCO_VERT
Chassis Connection
FIX3
R228
2K7 1W CF
R229
2K7 1W CF
EMC Shield
SH2
EMCPHONO
AC1
ATE_PAD
AC2
ATE_PAD
TXGND
ATE_PAD
TXN
ATE_PAD
TX115
ATE_PAD
TX230
ATE_PAD
LIVE
ATE_PAD
NEUTRAL
ATE_PAD
D10
6A40
D11
6A40
D12
6A40
D13
6A40
230V
115V
12
2
5
7
0V
13
11
11V
0V
11V
TX2
L825TX
RLY7A
RLY DPDT 12V
RLY7B
RLY DPDT 12V
RLY7C
RLY DPDT 12V
C13
4N7 MA
NS
R35P
0R0 SM
R65P
0R0 SM
R80P 0R0 SM
R83P 0R0 SM
Q42
BC847B
D44
24V 3W SM
D45
1N4003F
R35
1K0 SM
Q59F
2SC5248
Q39
BC849B
1
2
SKT3
MOLEX2MV
Fan
C89
100N SM
D46
BAS16W SM
D47
BAS16W SM
R230
47K SM
C87
100N SM
LOut
ROut
+UREG
R231
47K SM
C88
100N SM
Fan
R232
1K0 SM
Issue Box
Drilling Detail
DD1
DD_ISSUE
FIX1
FIX2
FIX4 FIX5 FIX6 FIX7
FANOUT
ATE_PAD
Green
1
SK9
CAGECLAMP1
R29
1K5 SM
D115V
ATE_PAD
D240V
ATE_PAD
ACD1
ATE_PAD
ACD2
ATE_PAD
R199
1R0 FU
!
Q7
BC856B
Q60
BC859B
R208
470R SM
Fault
C94
10N SM
R128
22K SM
R201
22K SM
+
C95
10U EL
Y2
TX WIRE CLIP
+
C96
10U EL
R202
100K SM
D42
BAS16W SM
+
C90
10U EL
R217
10K SM
D50
5V6 400MW
D49
BAS16W SM
R216
1K0 SM
Reset Circuit
TH2
PTHMA NS
C28
470P SM
SJB
Hardware Remote RX
PCB
PCB
L829PB
C6 & C8 change from 10u to 22u
2
SJB
26-9-97
22-9-97
97_1085
97_1086
SJB
No Change
3
22-10-97
97_1096
SJB
HS2N change to larger size
11-11-97
97_1102
4
C101
47N PE
5
6
+
C18
10M EL 63V
+
C19
10M EL 63V
Paper Marker
A2 Horizontal
DDH
DD_A2H
Paper Marker
A2 Vertical
DDV
DD_A2V
FR4, 2 OZ Cu
PCB MATERIAL
DDM
FR4_2OZ
FIX8 FIX9
Q_30
Q_47
Q_48
Detail
Drilling
DDD
DR LL_DWG
Q_55
Q_56
Q_57
R224
10R MF
1
2
SKT2
MOLEX2MV
SJB
PCB Issue 2 to 3 changes
9-7-98
98_1042
