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DRAWING NO.
DRAWING TITLE
Drawn by:
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Filename
ECO No. DESCRIPTION OF CHANGE
G:\DATA\ECO\ECO AGENDA\00 1093 L887PB 2\L887 2\L887 2.ddb - L887c2 2.sch
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
CD72, CD92 CD Players
Circuit Diagram
L887C2_2
CW12-Oct-2000
INITIALS
Date Printed
2 4Sheet of
Notes
F1
T160MA
D12
1N4003F
+
C34
100U EL 100V
+
C36
3M3 EL
+
C37
10U EL
R38
330R MF
R41
1K6 MF
+
C43
1M0 25V
D13
1N4003F
CDM14 Supply
+7.3V
Vin
I
ADJ
A
Vout
O
Z207
LM317T
R43
330R MF
R42
1K0 MF
D14
1N4003F
DAC Supply
+5V
R44 1R0 FU
R45
1R0 FU
Vin
I
ADJ
A
Vout
O
Z204
LM317T
Vin
I
ADJ
A
Vout
O
Z205
LM337T
R39
220R MF
D15 1N4003F
D16
1N4003F
R55
1K2 MF
1
2
3
4
5
SK205
8K2005
C55
10N CD
+
C41
100U EL
LOADOUT
LOAD N
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
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
P12V
N12V
P7V
P5VP5V DAC
N30V
P11V
AC1
AC2
AC
AC
AC2
AC1
D22
1N4003F
D23
1N4003F
R58 10R FU
LIVE
NEUT
P22VUN
N22VUN
N12V
P12V
P11V
P11VSW
P7V
P5VDAC
P5V
AGND
DGND
F LA
F LASW
LOADOUT
LOAD NINSW
OUTSW
RLYV
N30V
ACAUD1
ACAUD2
ACAUDG
ACDIG1
ACDIG2
ACDIG3
F LAC
FILB
GND5VDAC
P5V
P5V DAC
N12V
P12V
P11V
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
TP1
TP2TP3 TP4
TP5
TP6
TP7
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
R65 10R FU
P11V CLK
D4
UF4003
D5
UF4003
D6
UF4003
D7
UF4003
D8
UF4003
D9
UF4003
D10
UF4003
D11
UF4003
POWER SUPPLIES
+
C39
100U EL
+
C40
100U EL
+
C44
1M0 35V
+
C45
1M0 35V
+
C47
1M0 35V
+
C48
1M0 35V
+
C38
100U 25V ZA EL
+
C56
47U EL 35V
1
2
3
4
5
6
SK6
MOLEXPWR6
1
2
3
4
SK3
MOLEXPWR4
-
CGND2
WF 07-04-00 A
NEW PROTOTYPE
L
N
E
NEL
SK1
EC3
C69
10N CD
C67
3N3 MAINS C68
3N3 MA NS
TL10
TOOLING4.
Vin
I
ADJ
A
Vout
O
Z206
LM1086-ADJ
R47
1K8 MF
R46
1K8 MF
R40
220R MF
D2000
1N4003F
D2003
1N4003F
HS1
TO220HS30REG
D2002
1N4003F
+
C49
470U EL 25V
+
C50
470U EL 25V
+
C46
22U SILMIC
(25V)
D2001
1N4003F
1
2
PL4
2WVERTJUMPER
1
2
PL6
2WVERTJUMPER
1
2
PL5
2WVERTJUMPER
1
2
PL3
2WVERTJUMPER
1
2
PL7
2WVERTJUMPER
1
2
PL2
2WVERTJUMPER
JP2000
JUMPER
JP2001JUMPER
JP2002
JUMPER
JP2005
JUMPER
JP2003
JUMPER
JP2004
JUMPER
12
LK2000
10MM L NK
20
11
1
6
230V
115V
9
19
15
18
16
17
13
4
5
10
2
7
T201
L866TX
CL 13-07-00 REVISIONS B
CL 03-08-00 PRODUCTION RELEASE 1
EARTH LEAD
8M101
ET1
EARTH LEAD
CL 15-09-00 EARTH L NK 8M101 ADDED 1.1
00_1083
4
5
6
SW201B
A1014
7
8
9
SW201C
A1014
10
11
12
SW201D
A1014
TRACKS MOVED TO CLEAR P LLARS & C64 ADDED FOR EMC00_1093 2CW 11-10-00