Arcam A85 Integrated amplifier preamp - main signal path, Circuit Diagram, Drawing Title

1		2	3	4	5	6	7	8
	D100					D105
+15V	BAV99W DUAL SM -15V				+5V	BAV99W DUAL SM

D

Z100

+15V

+15V

D103

-15V

AUX L

4

13

Z109A

BAV99W DUAL SM

X0

V+

TL072 SM

SK2A

+15V

CD L

5

CDL1

R100

CDL

X1

SK4B

CD INPUT

1

CD L

TUNER L

6

D 8

3

R108

TAPEO1

X2

TAPE OUTPUT

F

1K0 SM

C104

AV L

7

X3

1

EMC

DVD L

12

R106

2

47R SM

R103

C101

100N SM

11

X4

1M0 SM

F

VCR IN L

X5

C108

100K SM

470P FKP2

10

X6

N

CDR1 0V_SIG

C105

MODULE L

9

100P SM

C100

X7

N

100N SM0V_SIG

+5V

1N0 SM

0V_SIG

2

EN

0V_SIG

0V_SIG

PHONO4G

-15V

TAPE 0

1

R101

CDR CD R

TAP0

A0

0V_SIG

TAPE 1

16

PHONO4G

1K0 SM

TAP1

TAPE 2

15

A1

TAP2

A2

TAPE02

	R110
	2K2 SM		Z111A
	R112	Z111_3	TL072 SM
			3	Z111_1
	22K SM		2	1
+ C110	R111	R113
100U EL	2K2 SM	22K SM
		+ C111
0V_SIG		10U CERAFINE

		0V_SIG			Z112A
								Z112B
R114		Z112_3			TL072 SM
					3	Z112_1		TL072 SM
22K SM	16			15	1		5		Z112_7	C117	Z106_14
					2			7		+
	Z108D			Z108A			6
DS1844			DS1844
	17			14	C115				10U CERAFINE
									R119
	18	Z108_19		19	22P SM				22K SM
					R118

SCLK

SCLK 13

	+5V
			C118	+ C120
	20			10U EL
		Z108E	100N SM
	VCC		1
CLK		PS

D

C

B

A

+15V

-15V

R104

C102

14

GND

100K SM

470P FKP2

3

V-

D101

+15V

0V_SIG

DG408DY

BAV99W DUAL SM

-15V

+15V

+15V

D104

-15V

0V_SIG

Z101

AUX R

4

13

Z109B

BAV99W DUAL SM

C106

X0

V+

TL072 SM

D102

CD R

5

100N SM

X1

+15V

BAV99W DUAL SM

-15V

TUNER R

6

8

5

X2

D

7

R109

C107

AV R

7

X3

DVD R

12

R107

6

100N SM

X4

47R SM

11

X5

1M0 SM

C109

SK2B

0V_SIG

VCR IN R

10

TUNER INPUT

TUNL1

R102

TUNL TUNER L

-15V

MODULE R

9

X6

100P SM

1K0 SM

+5V

X7

F

0V_SIG

2

0V_SIG

C103

EN

R105

TAPE 0

1

TAPE0

A0

100K SM

470P FKP2

TAPE 1

16

N

0V_SIG

TAPE1

TAPE 2

15

A1

TUNR1

TAPE2

A2

0V_SIG

14

GND

PHONO4G

R125

TUNR

TUNER R

3

V-

0V_SIG

DG408DY

1K0 SM

-15V

+15V

+15V

D109

-15V

+15V

-15V

R128

C122

Z102

Z110A

BAV99W DUAL SM

100K SM

470P FKP2

AUX L

4

13

X0

V+

TL072 SM

CD L

5

VCR OUTPUT

D106

+15V

X1

TUNER L

6

8

3

VCRO1 SK5B

X2

D

R133

BAV99W DUAL SM

1

AV L

7

X3

0V_SIG

C125

DVD L

12

R131

2

X4

47R SM

F

100N SM

TAPE IN L

11

X5

1M0 SM

C129

+15V

D107

-15V

MODULE L

10

X6

BAV99W DUAL SM

0V_SIG

C126

9

X7

100P SM

N

+5V

100N SM

2

0V_SIG

0V_SIG

EN

0V_SIG

VCR 0

1

-15V

VCR01

A0

SK3A

VCR 1

16

PHONO4G

AV INPUT

1 AVL1

R126

AVL AV L

VCR11

VCR 2

15

A1

1K0 SM

VCR21

A2

VCR02

F

14

EMC

C123

GND

R129

3

V-

N

0V_SIG

100K SM

470P FKP2

0V_SIG

DG408DY

C121

AVR1

-15V

+15V

+15V

D110

-15V

1N0 SM

0V_SIG

AUX R

4

Z103

13

Z110B

BAV99W DUAL SM

PHONO4G

R127

AVR AV R

X0

V+

TL072 SM

0V_SIG

CD R

5

1K0 SM

TUNER R

6

X1

8

5

X2

D

7

R134

C124

AV R

7

X3

+15V

-15V

R130

DVD R

12

R132

6

100K SM

470P FKP2

TAPE IN R

11

X4

1M0 SM

47R SM

+15V

10

X5

C130

D108

MODULE R

9

X6

100P SM

X7

BAV99W DUAL SM

+5V

0V_SIG

2

0V_SIG

C127

EN

0V_SIG

VCR 0

1

100N SM

VCR0

A0

D112

VCR1

VCR 1

16

A1

+15V

BAV99W DUAL SM

-15V

0V_SIG

C128

VCR2

VCR 2

15

A2

100N SM

14

C148

GND

SK3B

-15V

3

V-

DVDL1

DVDL

R156

DVD L

0V_SIG

DG408DY

22P SM

DVD INPUT

1K0 SM

-15V

+15V

F

R170

Z104

R178

R159

C140

AUX L

R162

22K SM

4

X0

V+

13

22K SM

100K SM

470P FKP2

CD L

22K SM

R171

5

X1

N

DVDR1 0V_SIG

TUNER L

R163

22K SM

6

8

2

X2

D

Z115_1A

1

AV L

22K SM

R172

7

X3

Z115A

0V_SIG

DVD L

R164

22K SM

12

X4

3

R173

C150

PHONO4G

R157

DVDR

TAPE IN L

22K SM

11

X5

DVD R

VCR IN L

R165

22K SM

10

OPA2134PA SM

X6

1K0 SM

+15V

MODULE L

22K SM

+5V

9

X7

470N PE

+15V

-15V

R160

C141

2

6

R183

EN

R180

100K SM

470P FKP2

C143

LIST0

LISTEN 0

1

7

Z115B

1M0 SM

LISTEN 1

16

A0

100K SM

5

TONE*

D113

100N SM

LIST1

A1

C147

LIST2

LISTEN 2

15

A2

BAV99W DUAL SM

0V_SIG

C144

100N PE

OPA2134PA SM

0V_SIG

14

C149

+15V

100N SM

GND

0V_SIG

0V_SIG

3

V-

+ C188

D114

-15V

-15V

+15V

-15V

0V_SIG

DG408DY

22P SM

BAV99W DUAL SM

10U EL

-15V

+15V

R174

Z105

R179

+ C189

C152

AUX R

R166

22K SM

4

X0

V+

13

22K SM

10U EL 0V_SIG

100N SM

SK4A

TAPEIL1

R158

TAPEIL

CD R

22K SM

R175

5

X1

TAPE INPUT

1

TAPE IN L

TUNER R

R167

22K SM

6

D

8

2

Z116_1A

+15V

R176

X2

1

-15V

1K0 SM

AV R

22K SM

7

X3

Z116A

EMC

F

DVD R

R168

22K SM

12

3

0V_SIG

X4

R161

C142

TAPE IN R

22K SM

R177

11

X5

C151

TONE*

100K SM

470P FKP2

C145

VCR IN R

R169

22K SM

10

X6

OPA2134PA SM

N

TAPEIR1 0V_SIG

100N SM

MODULE R

22K SM

9

X7

C139

+5V

470N PE

1N0 SM

0V_SIG

0V_SIG

C146

2

EN

R199

6

R184

PHONO4G

100N SM

LISTEN 0

1

7

Z116B

1M0 SM

R189

TAPEIR

LISTEN0

A0

0V_SIG

TAPE IN R

LISTEN1

LISTEN 1

16

A1

C167

100K SM

5

1K0 SM

-15V

LISTEN2

LISTEN 2

15

A2

OPA2134PA SM

+15V

-15V

R192

C161

14

100N PE

GND

0V_SIG

0V_SIG

100K SM

470P FKP2

3

V-

D115

0V_SIG

DG408DY

BAV99W DUAL SM

0V_SIG

-15V

SK103

+15V

+15V1

C168

C172

PCB

1

+15V

D116

-15V

+15V

D118

-15V

2

AUX R

AUXR1

8

100N SM

8

100N SM

8

BAV99W DUAL SM

BAV99W DUAL SM

PHONO

3

4

Z109C

Z110C

Z111C

5

AUXL1

TL072 SM

TL072 SM

TL072 SM

SK5A

VCRIL1

SK6

6

AUX L

0V_SIG

0V_SIG

R190

VCRIL VCR IN L

AUXIL1

R195

AUXL

TO

7

-15V1

4

4

4

VCR INPUT

1

AUX INPUT

1

AUX L

8

C169

1K0 SM

1K0 SM

-15V2

100N SM

C173

EMC

F

C162

EMC

F

AMPCT8

-15V

100N SM

R193

470P FKP2

R197

C165

100K SM

100K SM

0V_SIG

-15V

C160

N

VCRIR1

0V_SIG

C164

N

AUXIR1

0V_SIG

470P FKP2

C170

C174

1N0 SM

0V_SIG

1N0 SM

0V_SIG

0V_HF

8

100N SM

8

100N SM

SM

8

PHONO4G

R191

VCRIR

PHONO2G

R196

AUXR

0V_SIG

VCR IN R

0V_SIG

AUX R

Z113C

Z114C

OPA2134PA

Z115C

1K0 SM

1K0 SM

TL072 SM

TL072 SM

+15V

-15V

R194

C163

+15V

-15V

R198

C166

4

0V_SIG

4

0V_SIG

4

100K SM

470P FKP2

100K SM

470P FKP2

C171

C175

D117

D119

100N SM

100N SM

BAV99W DUAL SM

BAV99W DUAL SM

0V_SIG

0V_SIG

-15V

1

2

3

4

Z111_7 7

			22K SM	R120	R121
	C113	C114		22K SM	22K SM
5	470N PE	CFKP2 63V 2N2

SDATA SDATA 12 TONEID 9

TONEID

IC DS1844

DIN	R/W	8
RST	DOUT	11
	GND	R204
		10K SM

Z115_1B

+5V

R135

2K2 SM

Z113A

		6	R115		R117		+ C116
Z111B
			2K7 SM		5K6 SM		10U CERAFINE
TL072 SM
	C112					0V_SIG
470N PE
	C192		R116
			2K7 SM
470N PE
	+5V	D111		0V_SIG
		BAV99W DUAL SM

R122	10
2R2 SM	C119
0V_TONEID	10N SM
R124
2R2 SM
0V_SDATA	0V_SIG
R123
2R2 SM
0V_SCLK

R137

Z113_3

TL072 SM

Z114A

Z114B

3

1 Z113_1 R139

0V_SIG

TL072 SM

R151

SK100

22K SM

Z114_3

3

Z114_1

TL072 SM

LISTEN 0

R147

22K SM

1

+ C131

2

22K SM

1

5

7 Z114_7

C138

Z106_11

LISTEN 1

22K SM

R152

2

R136

R138

6

Z108B

5

2

6

+

LISTEN 2

R148

22K SM

3

100U EL

2K2 SM

22K SM

DS1844

DS1844

Z108C

VCR 0

22K SM

R153

4

Z116_1B

2

7

3

C135

22K SM

22K SM

VCR 1

R149

22K SM

12

DISPLAY/PCB

C134

4

C136

10U CERAFINE

5

+ C132

R144

VCR 2

22K SM

R154

6

0V_SIG

10U CERAFINE

Z108_3

22P SM

TAPE 1

22K SM

R155

8

R143

TAPE 2

22K SM

9

22K SM

10

R145

R146

11

Z113_7 7

5

470N PE

CFKP2 63V 2N2

MUTE*

13

MICRO

+ C137

TONE*

14

Z113B

6

R140

R142

0V_D

15

2K7 SM

5K6 SM

10U CERAFINE

TONEID

16

TO

TL072 SM

0V_TONEID

SDATA

17

18

C133

19

0V_SIG

0V_SDATA

SLOAD

20

21

470N PE

0V_SLOAD

SCLK

22

C193

R141

2K7 SM

0V_SCLK

FFC22V1MM

470N PE

SK101

0V_SIG

AUX L

1

2

AUX R

3

4

CD L

5

6

CD R

7

8

TUNER L

9

PCB

10

TUNER R

11

MODULE

12

AV L

13

14

AV R

15

IN

+15V

16

+ C190

DVD L

17

PLUG

18

10U EL

D122

DVD R

19

TO

+5V

R185

+ C191

+15V

BAV99W DUAL SM

-15V

20

TAPE IN L

21

+

+ C157

C155

22R SM

10U EL 0V_SIG

D121

22

C154

C156

100U EL

BAV99W DUAL SM

TAPE IN R

23

10U EL

100N SM

Z107_1

100N SM

24

-15V

VCR IN L

25

7

1

0V_SIG

26

Z106

/TONE

0V_SIG

VCR IN R

27

1

SEL1

SEL2

16

TONE*

DVCC

AVCC

LFO

3

C158

28

2

R186

SK102_1

SK102

MODULE R

2

D1

D2

15

22P SM

30

MODULE L

29

Z117A

1

1

R188

3

S1

S2

14

Z107_4

3

47R SM

2

FFC30V SM

+15V

4

LIN

LMO

2

3

10K SM

4

V-

V+

13

+5V

5

RFO

14

OPA2134PA SM

SK102_3

4

0V_SIG

0V_MODULE

5

12

C153

LGND

0V_SIG

AMPCT4

GND

VL

C159

100N SM

TO POWER AMP I/P

6

S4

S3

11

Z107_13

0V_SIG

22P SM

7

D4

D3

10

0V_SIG

13

RIN

RMO

15

6

Z117B

7

R187

RLY100A

RLY100B

12

RGND

5

47R SM

8

SEL4

SEL3

9

TONE*

RLY DPDT 5V SM

RLY DPDT 5V SM

R182

XMUTE

OPA2134PA SM

DGND

XCS DATA CCLK

AGND

DG413DY

0V_SIG

100R SM

0V_SIG

0V_SIG

Z107

VSDVC

+5V

R200

11

6 9

10

8

16

SLOAD SDATA

SCLK

10U EL

R201

R181

D120

+ RLY100C

0V_SDATA

2R2 SM

10K SM

+ C187

BAS16W SM

RLY DPDT 5V SM

+15V2 +15V

0V_SLOAD

2R2 SM

-

R202

+5V

C176

C180

0V_SCLK

2R2 SM

C186

Q100

100N SM

8

100N SM

100N SM

BC849B

R203

MUTE*

Z112C

0V_SIG

4K7 SM

TL072 SM

0V_SIG

4

0V_SIG

C177

C181

100N SM

100N SM

+15V

0V_D

C178

C182

C184

DRAWING TITLE

100N SM

SM

8

100N SM

SM

8

100N SM

Integrated amplifier preamp - main signal path

OPA2134PA

OPA2134PA

4

4

01_E014

JBR

28/11/01

Fuses uprated to 2A

1.1

Z116C

Z117C

Circuit Diagram

0V_SIG

0V_SIG

0V_SIG

23425

Notes:

C179

C183

C185

A & R Cambridge Ltd.

Pembroke Avenue

01_1142

JBR

14/8/01

First production release

1.0

100N SM

100N SM

100N SM

Denny Industrial Centre

ECO No.

INITIALS

DATE

DESCRIPTION OF CHANGE

ISSUE

Waterbeach

Filename

Date Printed

Drawn by:

Cambridge CB5 9PB

Sheet 2 of 3

DRAWING NO. L937C2

J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C228-Nov-2001_1.0.SCHJBR

5

6

7

8

C

B

A