Arcam Alpha 8 - Main Circuit Diagram

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87654321
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ISSUEDRAWING NO.
23425
DRAWING TITLE
DRAWN BY CHK BY
DATE
Filename
ECO No.
DESCRIPTION OF CHANGE
J:\FILES\PCBS\CIRCUITS\L812C2_8.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
2 4Sheet of
Alpha 7/8/9 CD Players
Circuit Diagram
L812CT 8
30-Oct-1997
L2
1U0H RADIAL
L3
1U0H RADIAL
F1
T160MA
D12
1N4003F
+
C34
100U EL 100V
+
C36
3M3 EL
Vin
I
ADJ
A
Vout
O
Z206 LM317T
+ C37
10U EL
R38
330R MF
R41
1K6 MF
+
C43
1M0 25V
+
C44
1M0 25V
+
C45
1M0 25V
D13
1N4003F
CDM14 Supply
+7.3V
Vin
I
ADJ
A
Vout
O
Z207
LM317T
+ C38
10U EL
R43
330R MF
R42
1K0 MF
D14
1N4003F
DAC Supply
+5V
+
C47
1M0 25V
+C48
1M0 25V
R44 3R3 FU
R45
3R3 FU
Vin
I
ADJ
A
Vout
O
Z204
LM317T
Vin
I
ADJ
A
Vout
O
Z205
LM337T
+ C39
100U EL
+ C40
100U EL
R39
220R MF
R40
220R MF
R46
3K0 MF
R47
3K0 MF
D15 1N4003F
D16
1N4003F
R55
1K2 MF
1
2
3
4
5
SK205
8K2005
C55
10N CD
+
C41
100U EL
LOADOUT
LOADIN
GND
INSW
OUTSW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SK204
FFC23V
LDIN
LDOUT
INOUT
P7V
FILA
FILB
Spare fuseSpare fuseSpare fuseSpare fuse
R50
100K MF
RA2
1
RA3
2
RTCC
3
MCLR
4
VSS
5
RB0
6
RB1
7
RB2
8
RB3
9
RB4
10
RB5
11
RB6
12
RB7
13
VDD
14
OSC2
15
OSC1
16
RA0
17
RA1
18
Z211
PIC16C54XT
RA0
AMUTE
DEEM
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RMIN
3
2
1
+5V
O/P
GND
Case
RX201
SBX1610-52
C52
10N CD
Vin
I
GND
G
Vout
O
Z208 7805
+ C42
100U EL
Vin
I
GND
G
Vout
O
Z209
7915
R51 22R FU
R52
22R FU
D17
15V 400MW
+
C35
100U EL 100V
D18
7V5 400MW
R53
33K MF
Power connector to DAC PCB
R54
330R MF
P18V
N18V
P7V P5VP5V DAC
N30V
P11V
XRST
AC1
AC2
AC
AC
AC2
AC1
D22
1N4003F
D23
1N4003F
+ C56
10U EL
1
2
3
4
LK101B
L814CA
1
2
3
4
LK101A
L814CA
P5V
HDCD
R58 10R FU
NL
SK1
IEC2
C46
10U NP
HS1
TO220HS30REG
4MHZ
R59
330R MF
LIVE NEUT
P22VUN
N22VUN
N18V
P18V
P11V
P11VSW
P7V
P5VDAC
P5V
AGND
DGND
FILA
FILASW
LOADOUT
LOADININSW
OUTSW
REMOUT
HDCD
REMIN
P5VREM
HDCDREM
GNDREM
RLYV
N30V
ACAUD1
ACAUD2
ACAUDG
ACDIG1
ACDIG2
ACDIG3
FILAC
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
FILB
GND5VDAC
P5V
P5V
P5V DAC
N18V
P18V
P11V
R27
100K MF
P5V
NEUT2
115V
230V
GND
1
O/P 'In'
2 3
Bias
4
LoadIn
5
LoadOut
6
Vcc
7
Vcc
8 9
O/P 'Out'
10
Z210
LB1641
Motor Ground
C32
10N CD
D19
4V7 400MW
HS
HS2A
TO220HS08REG
N35V
R37 10R FU
R48
10R FU
+
C33
1M0 25V
20
11
1
6
230V
115V
9
19
15
18
16
17
13
4
5
10
2
7
T201
L811TX
TP1
TP2TP3 TP4
TP5
TP6
TP7
RA0
+
C53
22U EL OS
C54
10N CD
PD1
PAD300/4.1
L6
6U8H RADIAL
L7
6U8H RADIAL
115V units only
230V units only
F2
T250MA115V
!
!
!
!
!
!
!
!
!
+ C51
1M0 25V
R64
10R FU
4 5 6
SW201B
A1014
7
8
9
SW201C
A1014
10 11 12
SW201D
A1014
R65 10R FU
P11V CLK
!
!
RIV1
HP007
RIV2
HP007 + C49
100U EL
+ C50
100U EL
D4
UF4003
D5
UF4003
D6
UF4003
D7
UF4003
D8
UF4003
D9
UF4003
D10
UF4003
D11
UF4003
HS3
TO220HS30REG
HS4TO220HS30REG
LED201
LED ULTRARED
CAH 96_1039
C38 was 100U EL. LK14 removed & R64 added25 June 1996
CAH 96_1104
LK66 removed & R65 added20 Nov 1996
4
5
CAH 24-4-97 UPGRADE IMPROVEMENTS97_1037 6
CAH 97_1069 2-9-97 HDCD LED changed
7
CAH 97_1101 30-10-97 HDCD LED removed from Alpha 7 CD
Alpha 8 only