PHONO & INPUTS
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L940C3_1.0.SCH
ACSENSE
PROT_OP_L
PROT_OP_R
PROTECTION MUTE
TAPECONTROL
MUX2
MUX3
PROT SENSE
SELOPL
SELOPR
HPSW2
TAPOL
TAPOR
MUX1
HPSW1
REMOTE CONTROL
L940C7_1.0.SCH
MUTE
MUX1
MUX2
MUX3
PROT SENSE
TONE CONTROL
L940C4_1.0.SCH
AVCONTROL
PREMUTE
TAPECONTROL
SELOPL
SELOPR
HPSW2
HPSW1
PREMUTE
ACLT1
PROT_OP_R
PROT_OP_L
PWRLEFT
PWRRIGHT
TAPOL
TAPOR
SP2_SEND_L
SP2_RETN_L
OP_L
OP_R
SP2_SEND_R
SP2_RETN_R
AVCONTROL
LEFT CHANNEL
L940C5_1.0.SCH
SP2_SEND_L
SP2_RETN_L
PWRLEFT
RIGHT CHANNEL
L940C6_1.0.SCH
PWRRIGHT
SP2_SEND_R
SP2_RETN_R
PROTECTION
OP_L
A1
A1
OP_R
A1
A1
POWER SUPPLY
L940C2_1.0.SCH
ACLT1
ACSENSE
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C1_1.0.prj
Notes:
TOP SHEET FOR A75 L940AY
Contact Engineer:
TGP
01_E020 12/12/01 PRODUCTION RELEASE 1.0
ECO No. DESCRIPTION OF CHANGE
INITIALS
11-Dec-2001
Contact Tel: (01223) 203 200Travis Pierce
Printed:
DATE
1 7Sheet of
DRAWING NO.
L940C1
ISSUE
C600
100U EL 100V
0V_HF
+
Q600
BC556B
R601
100R MF
R602
100R MF
Q601
BC556B
R615
47R MF
Q602
BC556B
0V_HF
+38V_L
C613
100N PE 100V
C614
100N PE 100V
0V_HF
+37V
+
C606
100U 50V YXF LOW Z
D601
ZENER 400MW 27V
R621
680R MF
C609
22N CD
PWRLEFT
C623
100N PE 100V
C602
+
22U SILMIC 2
R600
1K0 MF
C603
100P PPW
0V_SIG
R612
100K MF
0V_HF
R632
12K MF
Q619
BC546B
+
C601
100U EL 100V
Q606
BC546B
R613
47R MF
Q607
BC546B
R614
47R MF
R617
680R MF
Q608
BC546B
R633
12K MF
100U SILMIC 2
0V_HF
Q618
BC546B
C605
R618
10K MF
R619
10K MF
CL600
E856MC
HS600
E81801-75
C604
100P PPW
R616
2K7 MF
+
0V_SIG
Q609
BC546B
D600
4V7 400MW
CL601
E856MC
HS601
E81801-75
C610
100N PE 100V
R611
100K MF
C624
+
100U 25V ZA EL
2SC2240GR
+
C616
10U EL
Q611
HS602
E81801-75
Q604
2SA970GR
R620
10K MF
R603
100R MF
SP600
21mm x 32mm
SELF ADHESIVE
Q2 PAD
E852MC
Q2-PAD-SAP
HS603
E81801-75
2SA970GR
R634
470K MF
C625
10U EL
C607 100P PPW
SP601
21mm x 32mm
SELF ADHESIVE
Q2-PAD-SAP
Q603
+
Q2 PAD
E852MC
C611
100N PE 100V
Q610
2SC2240GR
R604
100R MF
C612
100N PE 100V
RV600
220R PSET
0V_HF
C608
100P PPW
-38V_L
Q614
SAP15N
Q615
SAP15P
C626
100U 50V YXF LOW Z
+
Bias-L +
SET BIAS TO 12mV
Bias-L -
C615
100N PE 100V
0V_HF
-37V
D603
1N4003F
D604
1N4003F
R627
430R MF
R628
430R MF
R606
100R MF
R607
100R MF
Q605
BC556B
R625
6K8 MF
R605
100R MF
C617
+
10U EL
+
C618
10U EL
R608
100R MF
R626
6K8 MF
Q613
BC546B
D602
ZENER 400MW 27V
R622
10K MF
D605
1N4148
Q612
2SC2240GR
0V_LS_L
Q616
2SA970GR
R624
10K MF
R609
100R MF
A1
R630
4R7 W2 CF
C619
100N PE 100V
R623
10K MF
D606
1N4148
Q617
ZTX653
R610
100R MF
R629
47K MF
PROTECTION
L600
2U2H LAC SMALL
R631
2R2 CF
A1
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C5_1.0.SCH
Notes:
Left Channel Power Amplifier
Contact Engineer:
Contact Tel: (01223) 203 200Travis Pierce
ECO No. DESCRIPTION OF CHANGE
SPLS600
SP2_RETN_L
C620
470P CD
0V_LS_L
OP_L
RLY1A
RLY G5Z-2A-E
SPLE600
0V_LS_L
C622
PD6
1N0 CD
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
DATE
INITIALS
11-Dec-2001
Printed:
SPLD600
C621
470P CD
5 7Sheet of
Bot+
SK600B
SPKSKT_G
Bot-
SK600C
CHASS
SPKSKT_G
SP2_SEND_L
Top+
SK600A
SPKSKT_G
Top-
DRAWING NO.
L940C5
ISSUE
ACLT1
R900
1R0 FU
MOTE900
C900
10N CD
0V_DIG
D906
1N4003F
R903
100R MF
R902
+
C914
100R MF
220U EL
0V_DIG
GND1Case
REMOTE SENSOR SNAP OFF BOARD
R904
10R MF
D908
ZENER 5V1 400MW
RX900
PIC-26043TM2
3
2
O/P
+5V
O/P
Case
GND +5V
IR RX
SUPPORT PAD
SP1
IR RX SUPPORT PAD
R901
12K MF
C901
0V_DIG
+5v
3WAY CABLE HOLDER
LK900
1
2
3
L856CA
+5v
R905
33K MF
+
100U EL
+
C915
100U EL
D907
1N4003F
LK903
+5V
Q900
BC556B
1 2
10MM LINK
REMO900
1
2
3
0V_DIG
P900
LK901
C912
10N CD
3
5
4
6
9
0V_DIG
+5V
C916
100N CD
0V_DIG
PROT SENSE
CC1
MC1
REF
MC2
CC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Z900
PB5
PB4
PA3
PA2
PA1
PA0
PB3
PB2
PB1
PB0
VSS
(TMR)/INT
PC0
PC1
+5V
Z905
8
BA6109
VCC17VCC2
VOLUME DRIVEMOTOR DRIVER
28
PB6
27
PB7
26
PA4
25
PA5
24
PA6
23
PA7
22
OSC2
21
OSC1
20
VDD
19
RES
HT48R30 28-DIP-B-0
18
PC5
17
PC4
16
PC3
15
PC2
R913
10K MF
5
6WP7
SCL
SDA
4
VSS
3
0V_DIG
+
C920
1M0 25V
0V_DIG 0V_DIG
2
MD1
1
GND
0V_DIG
10
MD2
8
VDD
A01A12A2
Z906
24C01
C917
100N CD
C913
10N CD
D910
1N4148
R912
100K MF
+5v
MOTSUP900
+5v
+ C921
10U EL
0V_DIG
R914
4K7 MF
C918
100N CD
VOLM901
VOLMOT900
1Y271
1 2
VOLM900
X900
0V_DIG
CST4.00
D911
1N4148
0V_DIG
SK900
FFC10V
10
Disp H
Disp G
Disp I
SW900A
2PCO_NON_LAT
123
456
SW900B
2PCO_NON_LAT
MUTE
PREMUTE
Disp D
Disp F
Disp E
TAPECONTROL
AVCONTROL
MUX1
MUX2
MUX3
Disp C
Disp B
Disp A
123456789
0V_DIG
0V_DIG
13
14
15
12
1
5
2
4
6
11
10
9
7
Z907A
74HC4051
X0
X1
X2
X3
X4
X5
X6
X7
INH
A
B
C
VEE
3
X
R915
220R MF
+5v
0V_DIG
+5v
C919
100N CD
16
Z907B
VDD
GND
74HC4051
8
WARNING SAFETY CRITICAL COMPONENT
REPLACE WITH IDENTICAL PART
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C7_1.0.SCH
Notes:
uC, Volume Drive & Remote Control
Contact Engineer:
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
ECO No. DESCRIPTION OF CHANGE
INITIALS
11-Dec-2001
Contact Tel: (01223) 203 200Travis Pierce
Printed:
DATE
7 7Sheet of
DRAWING NO.
L940C7
ISSUE
PHONO4G
TUNER
VCR
PHONO4G
TAPE IN
SK100A
EMC
PHONO4G
PHINR
SK100B
CD
SK103A
PHONO4G
SK103B
AV/DVD
SK102A
PHONO4G
SK102B
PHONO4G
F
N
EMC
EMC
LK101
10MM LINK
1 2
+15v
D101
1N4148
D100
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
1N4148
LK102
1 2
10MM LINK
D102
1N4148
D104
1N4148
D105
1N4148
D108
1N4148
D109
1N4148
D110
1N4148
D111
1N4148
D120
1N4148
D121
1N4148
D122
1N4148
D123
1N4148
1
PHINL
0V_SIG
+15v
1N4148
CDL
4
TOP
F
6
N
0V_SIG
5
BOT
CDR
TUNL
1
F
N
0V_SIG
TUNR
VCRL
F
N
0V_SIG 0V_SIG
VCRR
DVDL
1
F
N
0V_SIG 0V_SIG
DVDR
TAPL
F
N
0V_SIG 0V_SIG
TAPR
D103
-15v
R118
1K0 MF
1N4148
R119
1K0 MF
1N4148
R121
1K0 MF
1N4148
R122
1K0 MF
1N4148
R123
1K0 MF
1N4148
R124
1K0 MF
1N4148
R125
1K0 MF
1N4148
R126
1K0 MF
1N4148
R127
1N4148
R128
1K0 MF
1N4148
-15v
D106
D107
D112
D113
D114
D115
D124
D125
1K0 MF
D126
D127
101112
SW100D
4PCO
SW100B
4PCO
456
789
SW100C
4PCO
SW100A
4PCO
123
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
R130
100K MF
VCROR
R131
100K MF
TUNOL
R133
100K MF
TUNOR
R134
100K MF
CDOL
R135
100K MF
CDOR
R136
100K MF
DVDOL
R137
100K MF
DVDOR
R142
100K MF
TAPEOL
R143
100K MF
TAPEOR
R144
100K MF
C120
VCROL
C119
100P PP
R101
100P PP
C134
470P PPW
C135
470P PPW
C137
470P PPW
C138
470P PPW
C139
470P PPW
C140
470P PPW
C141
470P PPW
C142
470P PPW
C143
470P PPW
C144
470P PPW
R100
47K MF
C123
47P CD
47K MF
+
0V_SIG
C124
47P CD
+
0V_SIG
R109
C126
22U EL
R108
470R MF
C125
22U EL
470R MF
5
6
C128
4N7 PP
3
2
680K MF
4N7 PP
R111
680K MF
Z100A
NE5532
R110
C127
Z100B
NE5532
7
1
R113
56K MF
C130
1N3 PP
R112
56K MF
C129
1N3 PP
C131
+
22U EL
C132
+
22U EL
MUX1
MUX2
MUX3
R114
8K2 MF
LK103
1 2
10MM LINK
R115
8K2 MF
LK104
1 2
10MM LINK
AUXOL
VCROL
TUNOL
CDOL
DVDOL
0V_SIG
AUXOR
VCROR
TUNOR
CDOR
DVDOR
MUX1
MUX2
MUX3
0V_SIG
R116
18K MF
R120
1K0 MF
0V_SIG
0V_SIG
0V_SIG
+5v
84
Z100C
NE5532
R117
1K0 MF
+5v
R132
100K MF
+15V
-15V
+15V
-15V
0V_SIG
AUXOR
4
5
6
7
12
11
10
9
2
1
16
15
14
3
-15v
4
5
6
7
12
11
10
9
2
1
16
15
14
3
-15v
C112
100N CD
C113
100N CD
C101
100N CD
0V_SIG
C102
100N CD
R129
100K MF
Z102
X0
X1
X2
X3
X4
X5
X6
X7
EN
A0
A1
A2
GND
V-
DG408DJ
Z103
X0
X1
X2
X3
X4
X5
X6
X7
EN
A0
A1
A2
GND
V-
DG408DJ
AUXOL
C136
470P PPW
V+
D
V+
D
+
C145
10U EL
+
C146
10U EL
C133
470P PPW
+15v
13
8
0V_SIG
0V_SIG
+15v
13
8
0V_SIG
R139
100K MF
R138
100K MF
0V_SIG
+15v
100N CD
100N CD
-15v
+15v
-15v
C107
C108
C109
100N CD
C114
100N CD
C115
100N CD
C116
100N CD
+15v
Z104C
TL072
-15v
LED100
G
3WAY CABLE HOLDER
R
LED RED/GRN 3MM
ACSENSE
R156
C147
100U NP
Therm
1K5 MF
0V_SIG
0V_SIG
PROT_OP_L
SK101A
TAPE OUT
EMC
PHONO4G
+15v
D117
Z104A
3
2
TL072
Z104B
5
6
TL072
84
R154
1
47R MF
C122
100P PP
+15v
R155
7
47R MF
C121
100P PP
+15v
C110
100N CD
-15v
C118
100N CD
0V_SIG0V_SIG0V_SIG
1N4148
D116
1N4148
D119
1N4148
D118
1N4148
TAPOL
1
F
N
0V_SIG
TAPOR
TAPOR
-15v
-15v
-15v
0V_SIG
TAPEOL
TAPECONTROL
Z105
1
SEL1
2
D1
3
S1
4
VGND5VL
6
S4
7
D4
8
SEL4
DG413DJ
TAPECONTROL
TAPEOR
TAPOL
SEL2
SEL3
D2
S2
V+
S3
D3
16
15
14
+15v
13
+5v
12
11
10
9
TAPECONTROL
MUX1
MUX2
MUX3
TAPECONTROL
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER PLUS
R102
47K MF
R103
47K MF
TH100
PTH90DEG
C151
+
100U SILMIC 2
C152
+
100U SILMIC 2
MUX1
MUX2
MUX3
Filename:
L940C3_1.0.SCH
Notes:
Phono Stage & Input Selection
Contact Engineer:
R140
100K MF
R141
100K MF
SELOPL
PROTECTION
D128
1N4003F
R148
470R FU
AC Det
R104
47K MF
0V_HF 0V_HF
R105
47K MF
R157
100K MF
SELOPR
Contact Tel: (01223) 203 200Travis Pierce
C148
+
1U0 EL
C153
10N CD
R149
100K MF
2
3
LK100
L856CA
LK100A
1
2
3
IN1
IN2
0V_HF
1
PWR
V-
5
C117
470P CD
R106
47K MF
RC
1
2
3
C149
100U EL
8
RC
0V
4
R150
100K MF
0V_HF
9
V+
FB
7
D134
5V6 400MW
+
O
C150
D131
5V6 400MW
+37V
R145
10K MF
Z101
TA7317P
6
0V_HF
D130
1N4003F
R107
47K MF
R146
2K7 1W CF
C154
100N PE 100V
+
1U0 EL
R151
18K MF
-37V
ECO No. DESCRIPTION OF CHANGE
R152
33K MF
0V_HF
0V_HF
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
DATE
INITIALS
11-Dec-2001
Printed:
3 7Sheet of
+37V
RLY1C
RLY G5Z-2A-E
R153
1K0 1W CF
HPSW1
MUTEPROT_OP_R
Prot
D132
1N4148
R147
2K7 1W CF
D129
1N4003F
R158
47K MF
HPSW2
DRAWING NO.
Q100
2SC2240GR
PROT SENSE
L940C3
ISSUE
C300
3N3 MAINS
MAINS_N300
MAINS_E300
MAINS_L300
MAINS INPUT
SK300
IEC3
N E L
E
N
A1007
PD300
TOOLING
0V_HF
L
C301
3N3 MAINS
MAINS SWITCH
SW300B
SW300A
A1007
CS1
220N X2 CLASS
Chassis Earth Point,
Use correct screw and washer.
R300
100R MF
R311
D304
D305
0V_SIG
R312
10R FU
10R FU
+ C312
220U EL 50V
0V_HF0V_PSU
+ C313
220U EL 50V
C317
100N CD
100N CD
Q300
BC546B
Q302
BC556B
+
C106
1U0 EL
+
C105
1U0 EL
+38V_R
+38V_R
C319
100N CD
C320
-37V_R -37V_L
100N CDC318
-38V_R
Z300
7805
I
Vin
Vout
GND
G
D306
10V 400MW
D307
10V 400MW
G
GND
I
Vin
Z301
7905
Vout
+38V_L
O
O
Q304
BC546B
+37V_L
Q305
BC556B
-38V_L
+15V
+
C315
100U EL
+
C316
100U EL
-15V
+300
-300
FS300
AS1A25
C302
3N3 MAINS
SELECT VOLTAGE
BY FITTING FS201
OR FS202
T300
FS301
AS2A5_115V
GREEN300
FIT ONLY ONE FUSE
T301
BLUE300
SK302
1
CAGECLAMP1
3
Orange
2
Dark Grey
1
Blue
SK301
CAGECLAMP3
Green
230V
115V
SCREEN
TX300
L816TX
9Vac
SK303
Grey
Grey
CAGECLAMP2
BLUE301
SK304
Orange
Blue
Orange
CAGECLAMP3A
ACSENSE
EL
EARTH LEAD
8M101
EARTH LEAD
C304
+
47U EL 100V
ACLT1
AC
1
2
0V_DIG
1
BR300
+
3
~
OR300
1
2
3
OR301
C314
100P CD
2
~
-
BRGBU8D
4
C305
47U EL 100V
+
C308
10M EL 50V
C309
10M EL 50V
+
+
+37V
-37V
C306
100N PE 100V
0V_SIG
0V_DIG
C307
100N PE 100V
0V_HF
D301
1N4003F
D302
1N4003F
0V_PSU
D300
1N4003F
D303
1N4003F
PSUP300
0V_LS_L
SP300
STAR_10
NSUP300
0V_HF
C310
+
100U EL 100V
ZENER 500MW 39V
C311
+
100U EL 100V
ZENER 500MW 39V
0V_LS_R
R301
4K7 MF
R302
4K7 MF
DO NOT USE THE FOLLOWING NUMBERS AS LINKS - THE DESIGNATORS ARE ALREADY USED ON OTHER PARTS OF THIS CCT!
LK100, LK101, LK102, LK103, LK104, LK168, LK170, LK171, LK172, LK173, LK174, LK175, LK176, LK177,LK200, LK239
LK1
LINK10NP
LK2
LINK10NP
LK3
LINK10NP
LK4
LINK10NP
LK5
LINK10NP
LK201
LINK10NP
LK212
LINK15NP
LK220
LINK20NP
LK267
LINK17.5NP
LK268
LINK17.5NP
LK269
LINK15NP
LK6
LINK10NP
LK7
LINK10NP
LK8
LINK10NP
LK9
LINK10NP
LK10
LINK10NP
LK202
LINK10NP
LK213
LINK15NP
LK11
LINK10NP
LK12
LINK10NP
LK13
LINK10NP
LK14
LINK10NP
LK15
LINK10NP
LK203
LINK10NP
LK221
LINK20NP
LK270
LINK17.5NP
LK271
LINK15NP
LK272
LINK17.5NP
LK16
LINK10NP
LK17
LINK10NP
LK18
LINK10NP
LK19
LINK10NP
LK20
LINK10NP
LK204
LINK10NP
LK214
LINK15NP
LK21
LINK10NP
LK22
LINK10NP
LK23
LINK10NP
LK24
LINK10NP
LK25
LINK10NP
LK205
LINK10NP
LK215
LINK15NP
LK222
LINK20NP
LK26
LINK10NP
LK27
LINK10NP
LK28
LK08NP
LK29
LINK10NP
LK30
LINK10NP
LK206
LINK10NP
LK31
LINK10NP
LK32
LINK10NP
LK33
LINK10NP
LK34
LINK10NP
LK35
LINK10NP
LK207
LINK10NP
LK216
LINK15NP
LK223
LINK20NP
LK36
LINK10NP
LK37
LINK10NP
LK38
LINK10NP
LK39
LINK10NP
LK40
LINK10NP
LK208
LINK10NP
LK217
LINK15NP
PD301
TOOLING
LK41
LINK10NP
LK42
LINK10NP
LK43
LINK10NP
LK44
LINK10NP
LK45
LINK10NP
LK209
LINK10NP
LK224
LINK20NP
PCB1
L940PB_1
PD302
TOOLING
PCB
LK46
LINK10NP
LK47
LINK10NP
LK48
LINK10NP
LK49
LINK10NP
LK50
LINK10NP
LK210
LINK10NP
LK218
LINK15NP
LK51
LINK10NP
LK52
LINK10NP
LK53
LINK10NP
LK54
LINK10NP
LK55
LINK10NP
LK211
LINK10NP
LK225
LINK20NP
PD304
TOOLING
LK56
LINK10NP
LK57
LINK10NP
LK58
LINK10NP
LK59
LINK10NP
LK60
LINK10NP
LK277
LINK10NP
LK219
LINK15NP
C303
1N0 CD
0V_DIG
PD305
TOOLING
LK61
LINK10NP
LK62
LINK10NP
LK63
LINK10NP
LK64
LINK10NP
LK65
LINK10NP
LK278
LINK10NP
LK230
LINK15NP
LK226
LINK20NP
PD303
TOOLING
LK66
LINK10NP
LK67
LINK10NP
LK68
LINK10NP
LK69
LINK10NP
LK70
LINK10NP
LK279
LINK10NP
LK231
LINK15NP
PD311
TARGET1
PS300
Photo Strip
PHOTO_STRIP
LK71
LK76
LK81
LK86
LINK10NP
LINK10NP
LINK10NP
LINK10NP
LK72
LK77
LK82
LK87
LINK10NP
LINK10NP
LINK10NP
LINK15NP
LK73
LK78
LK83
LK88
LINK10NP
LINK10NP
LINK10NP
LINK10NP
LK74
LK79
LK84
LK89
LINK10NP
LINK10NP
LINK10NP
LINK10NP
LK75
LK80
LK85
LK90
LINK10NP
LINK10NP
LINK10NP
LINK10NP
LK280
LK281
LK252
LK253
LINK10NP
LINK10NP
LINK10NP
LINK10NP
LK232
LINK15NP
LK227
LINK20NP
PD312
TARGET1 Y301
UD1
Update Box
UPDATE_BOX
LK228
LINK20NP
PD306
TOOLING
LK233
LINK15NP
PD307
TOOLING
LK91
LINK10NP
LK92
LINK10NP
LK93
LINK10NP
LK94
LINK10NP
LK95
LINK10NP
LK255
LINK10NP
LK234
LINK15NP
LK229
LINK20NP
PD308
TOOLING
LK96
LINK10NP
LK97
LINK10NP
LK98
LINK10NP
LK99
LINK10NP
LK300
LINK10NP
LK235
LINK15NP
PD309
TOOLING
WARNING SAFETY CRITICAL COMPONENT
REPLACE WITH IDENTICAL PART
LK105
LINK10NP
LK301
LINK10NP
LK246
LINK20NP
LK106
LINK10NP
LK107
LINK10NP
LK108
LINK10NP
LK109
LINK10NP
LK110
LINK10NP
LK236
LINK15NP
PD310
TOOLING
TX WIRE CLIP
LK111
LINK10NP
LK112
LINK10NP
LK113
LINK10NP
LK114
LINK10NP
LK115
LINK10NP
LK303
LINK10NP
LK247
LINK20NP
Y300
LK116
LINK10NP
LK117
LINK10NP
LK118
LINK10NP
LK119
LINK10NP
LK120
LINK10NP
LK304
LINK10NP
LK237
LINK15NP
TX WIRE CLIP
LK121
LINK10NP
LK122
LINK10NP
LK123
LINK10NP
LK124
LINK10NP
LK125
LINK20NP
LK238
LINK15NP
LK248
LINK20NP
LK126
LK131
LK136
LINK17.5NP
LK127
LINK10NP
LK128
LINK10NP
LK129
LINK10NP
LK130
LINK10NP
EL300
Spare Fuse Clip
FUSE CLIP
LINK10NP
LK132
LINK10NP
LK133
LINK10NP
LK134
LINK10NP
LK135
LINK10NP
LK249
LINK20NP
LINK10NP
LK137
LINK10NP
LK138
LINK10NP
LK139
LINK10NP
LK140
LINK10NP
LK240
LINK15NP
LK141
LINK10NP
LK142
LINK10NP
LK143
LINK10NP
LK145
LINK10NP
LK241
LINK15NP
LK250
LINK20NP
LK148
LINK10NP
LK149
LINK10NP
LK150
LINK10NP
LK151
LINK10NP
LK152
LINK10NP
LK153
LINK10NP
LK154
LINK10NP
LK155
LINK10NP
LK242
LINK15NP
LK251
LINK20NP
LK156
LINK10NP
LK157
LINK10NP
LK158
LINK10NP
LK159
LINK10NP
LK160
LINK10NP
LK243
LINK15NP
LK161
LINK10NP
LK162
LINK10NP
LK163
LINK10NP
LK164
LINK10NP
LK165
LINK10NP
LK254
LINK20NP
LK166
LINK10NP
LK167
LINK10NP
LK244
LINK15NP
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C2_1.0.SCH
Notes:
POWER SUPPLY
Contact Engineer:
Contact Tel: (01223) 203 200Travis Pierce
LK181
LK186
LINK10NP
LINK10NP
LK182
LK187
LINK10NP
LINK10NP
LK178
LK183
LK188
LINK10NP
LINK10NP
LINK10NP
LK179
LINK10NP
LK180
LINK10NP
LK245
LINK15NP
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
INITIALS
Printed:
DATE
11-Dec-2001
ECO No. DESCRIPTION OF CHANGE
LK185
LINK10NP
LK256
LINK17.5NP
LK189
LINK10NP
LK190
LINK10NP
LK257
LINK15NP
2 7Sheet of
LK191
LINK10NP
LK192
LINK10NP
LK193
LINK10NP
LK194
LINK10NP
LK195
LINK10NP
LK196
LINK10NP
LK197
LINK10NP
LK198
LINK10NP
LK199
LINK10NP
LK258
LINK10NP
LK265
LINK15NP
DRAWING NO.
L940C2
ISSUE
C700
100U EL 100V
0V_HF
+38V_R
+
R701
100R MF
R702
100R MF
R715
47R MF
0V_HF
C713
100N PE 100V
C714
100N PE 100V
0V_HF
+37V
+
C706
100U 50V YXF LOW Z
D701
ZENER 400MW 27V
PWRRIGHT
C723
100N PE 100V
C702
+
22U SILMIC 2
R700
1K0 MF
C703
100P PPW
0V_SIG
R712
100K MF
0V_HF
Q700
BC556B
Q719
BC546B
R732
12K MF
+
C701
100U EL 100V
Q706
BC546B
R713
47R MF
Q707
BC546B
R714
47R MF
R717
680R MF
Q708
BC546B
Q701
BC556B
100U SILMIC 2
0V_HF
R733
12K MF
Q718
BC546B
C705
R718
10K MF
R719
10K MF
C704
100P PPW
R716
2K7 MF
+
0V_SIG
Q709
BC546B
D700
4V7 400MW
C710
100N PE 100V
R711
100K MF
C724
+
100U 25V ZA EL
+
C716
10U EL
Q704
2SA970GR
R720
10K MF
Q711
2SC2240GR
R703
100R MF
R721
470K MF
C725
10U EL
C707 100P PPW
Q702
BC556B
+
Q703
2SA970GR
C711
100N PE 100V
Q710
2SC2240GR
R704
100R MF
C712
100N PE 100V
RV700
220R PSET
0V_HF
C708
100P PPW
-38V_R
Q714
SAP15N
Q715
SAP15P
+
C709
100U 50V YXF LOW Z
Bias-R +
SET BIAS TO 12mV
Bias-R -
C715
100N PE 100V
0V_HF
-37V
D703
1N4003F
D704
1N4003F
R727
430R MF
R728
430R MF
R706
100R MF
R707
100R MF
R725
6K8 MF
R705
100R MF
C717
+
10U EL
+
C718
10U EL
R708
100R MF
R726
6K8 MF
Q713
BC546B
D702
ZENER 400MW 27V
D705
1N4148
Q712
2SC2240GR
0V_LS_R
Q716
2SA970GR
R724
10K MF
R709
100R MF
A1
R730
4R7 W2 CF
C719
100N PE 100V
R723
10K MF
D706
1N4148
Q717
ZTX653
R710
100R MF
L700
2U2H LAC SMALL
R731
2R2 CF
A1
SP2_RETN_R
RLY1B
RLY G5Z-2A-E
PD6
PAD300/4.1
470P CD
OP_R
SPLE700
0V_LS_R
PD6
C720
0V_LS_R
C722
1N0 CD
SPLD700
C721
470P CD
SPLS700
Bot+
SK700B
SPKSKT_G
Bot-
SK700C
CHASS
SPKSKT_G
SP2_SEND_R
Top+
SK700A
SPKSKT_G
Top-
SP700
21mm x 32mm
SELF ADHESIVE
Q2 PAD
E852MC
Q2-PAD-SAP
SP701
21mm x 32mm
SELF ADHESIVE
Q2 PAD
E852MC
Q2-PAD-SAP
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C6_1.0.SCH
Notes:
Right Channel Power Amplifier
Contact Engineer:
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
ECO No. DESCRIPTION OF CHANGE
INITIALS
11-Dec-2001
Contact Tel: (01223) 203 200Travis Pierce
Printed:
DATE
6 7Sheet of
DRAWING NO.
L940C6
ISSUE
SELOPL
R200
24K MF
RV167A
10K LIN POT
R210
10K MF
2
3
0V_SIG
C197
10P CD
R212
68K MF
Z160A
4560D
1
C200
+
47U EL 35V
R202
4K7 MF
Tone controls :
8dB cut and boost
BASS
RV166A
10K LIN POT
C204
220N PE
R214
3K3 MF
RV165A
10K LIN POT
TREBLE
Pot arrow shows max boost
R205
4K7 MF
C208
4N7 PP
R204
4K7 MF
C206
220N PE
R216
3K3 MF
0V_SIG
Z161A
3
2
4560D
C210
100P PP
LK200
1 2
10MM LINK
SW163A
2PCO
123
SW162A
0V_SIG
123
R232
100K MF
2PCO
C202
1
+
10U EL
SK162
HPSKT
LHC
RHC
4
HPSW1
5
L
HPSW2 SP2_SEND_L
2
3
1
6
7
R
R236
100R W2 CF
PROT_OP_L
330R 1W CF
PROT_OP_R
R237
100R W2 CF
R161
330R 1W CF
R162
456
SW163B
2PCO
LK170
1
2
3
4
5
6
7
L825CA
LK171
1
2
3
4
5
6
7
L825CA
SP2_RETN_L
SP2_RETN_R
SP2_SEND_R
OP_L
OP_R
0V_LS_R
SELOPR
LK168
L809CA
1
2
3
4
5
6
7
8
RV164C
6A360M
+
+ -
VOLUME POT SNAP OFF BOARD
R201
24K MF
RV167B
10K LIN POT
C195
10N CD
R213
10K MF
0V_SIG
10P CD
R211
68K MF
Z160B
6
5
4560D
C196
RV164A
6A360M
RV164B
6A360M
VOLMOTA161
2W CABLE HOLDER
1 2
7
RV164D
9
Case
7
6A360M
C201
+
47U EL 35V
R203
4K7 MF
C205
220N PE
Tone controls :
8dB cut and boost
R215
3K3 MF
BASS
R206
RV166B
4K7 MF
10K LIN POT
C207
220N PE
R207
4K7 MF
C209
4N7 PP
R217
RV165B
10K LIN POT
TREBLE
Pot arrow shows max boost
3K3 MF
0V_SIG
5
6
Z161B
4560D
C211
100P PP
R220
11K MF
R221
11K MF
7
LK239
1 2
10MM LINK
R218
9K1 MF
R219
9K1 MF
C203
+
10U EL
84
Z163C
OPA2134PA
0V_SIG
0V_SIG
Z160C
4560D
R233
100K MF
84
LK169
1
2
3
4
5
6
7
8
L809CA
SW162B
2PCO
456
84
Z161C
4560D
+15V
0V_SIG
-15V
0V_SIG
C213
100N CD
+
C215
22U EL
+
C214
22U EL
-15v
C220
100N CD
AVCONTROL
Z164
1
SEL1
2
D1
3
S1
4
VGND5VL
6
S4
7
D4
8
SEL4
DG413DJ
AVCONTROL
AVCONTROL
C218
100N CD
C221
100N CD
SEL2
SEL3
16
15
D2
14
S2
13
V+
12
11
S3
10
D3
9
C219
100N CD
C222
100N CD
+15v
+5v
LK176
1 2
10MM LINK
Fit on A65 only
C216
100N CD
C217
100N CD
LK177
1 2
10MM LINK
Fit on A65 only
Z163A
+15v
-15v
0V_SIG
0V_SIG
0V_SIG
R234
100K MF
R235
100K MF
0V_SIG
0V_SIG
3
2
OPA2134PA
R240
1K0 MF
Z163B
5
6
OPA2134PA
R160
1K0 MF
1
7
R230
47R MF
C227
100P PPW
R238
1K2 MF
R231
47R MF
C228
100P PPW
R239
1K2 MF
0V_SIG
-15v
PREMUTE161
PREMUTE
Z171
1
SEL1
2
D1
3
S1
4
VGND5VL
6
S4
7
D4
8
SEL4
DG413DJ
PREMUTE
SEL2
SEL3
PREMUTE
16
15
D2
14
CUT LINK IF CIM FITTED (8P ONLY)
S2
+15v
13
V+
+5v
12
11
S3
10
D3
0V_SIG
9
CUT LINK IF CIM FITTED (8P ONLY)
+15v
-15v
0V_SIG
+15v
+15v
C223
100N CD
0V_SIG
C224
100N CD
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
DRAWING TITLE
A & R Cambridge Ltd.
Pembroke Avenue
Waterbeach
Cambridge CB5 9PB
A75 PLUS AMP
Filename:
L940C4_1.0.SCH
Notes:
Pre-amp Out, Tone & Headphone
Contact Engineer:
TGP01_E020 12/12/01 PRODUCTION RELEASE 1.0
ECO No. DESCRIPTION OF CHANGE
INITIALS
Contact Tel: (01223) 203 200Travis Pierce
Printed:
D164
1N4148
LK173
1 2
10MM LINK
PWRRIGHT
D166
1N4148
1 2LK172
10MM LINK
PWRLEFT
DATE
11-Dec-2001
PL161
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
DIL16 VPLG
D165
1N4148
D167
0V_SIG
1N4148
0V_SIG
-15v
-15v
R208
100K MF
R209
100K MF
4 7Sheet of
FIT LINKS FOR 8P
LK174
1 2
10MM LINK
FIT LINK FOR 8P ONLY
SK101B
5
BOT
6
0V_SIG
4
TOP
PHONO4G
LK175
1 2
10MM LINK
FIT LINK FOR 8P ONLY
PREAMP OUT
N
F
DRAWING NO.
TAPOLTAPOR
ISSUE
L940C4
87654321
D
SW1
ALPS_ENCODER 12NOTCH
A
C
B
D
C
SK1
FFC10H
9
10
1
3
1
2
3
4
5
6
7
8
2
C
B
LED901
LED GREEN3.1 MM
LED902
LED GREEN3.1MM
LED903
LED GREEN3.1MM
LED904
LED GREEN3.1MM
LED905
LED GREEN3.1MM
R903
220R MF
LED906
LED GREEN3.1MM
R904
220R MF
LED907
LED GREEN3.1MM
Phono CD Tuner VCR AV/DVD TAPE AV/FIXED GAIN
B
A
PCB
PCB
L885PB_1
DRAWING TITLE
DISPLAY PCB FOR A75 AMP
Notes:
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
Filename
J:\PROJECTS\a75\cct & pcb\issue b wip\L885PB\L885pb.ddb - ISSUE 1\L885C1_1.SCH
Circuit Diagram
CL 31-08-00 PRODUCTION RELEASE 1N/A
ES 31-07-00 CORRECTED TO MATCH MAIN PCB CN/A
ES 14-06-00 ADD FLEXFOIL CONNECTORS AND CHANGE ENCODER BN/A
WAF 27-3-00 FIRST PROTOTYPE AN/A
ECO No. DESCRIPTION OF CHANGE
Date Printed
INITIALS
12-Sep-2000
DATE
Drawn by:
ES
1 1Sheet of
DRAWING NO.
A
ISSUE
L885C1_A
1 2 3 4 5 6 7 8
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