A85 amplifier and psu - top sheet circuit diagram – Arcam A85 User Manual

Page 10

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ISSUE

DRAWING NO.

23425

DRAWING TITLE

Drawn by:

DATE

Filename

ECO No.

DESCRIPTION OF CHANGE

L882C1_3.2.PRJ

A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB

A85 amplifier and PSU - top sheet

Circuit Diagram

L882C1

J Reckless

6-Jun-2001

INITIALS

Date Printed

1

4

Sheet

of

Notes:

Top+

Top-

SK100A

CAMCON_G

Bot+

Bot-

SK100B

CAMCON_G

Top+

Top-

SK101A

CAMCON_G

Bot+

Bot-

SK101B

CAMCON_G

D100
1N4003F

D101
1N4003F

1

2

3

4

5

6

7

8

SP100

STAR_8

EMC

1

N

F

SK104A

PHONO4G

N

F

SK104B

PHONO4G

0V_SIG

0V_SIG

0V_SIG

1

2

3

SW100A
2PCO

4

5

6

SW100B
2PCO

C100
1N0 SM

1
2
3
4

SK102

AMPCT4

STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT
VIPROT
DCPROT
AC PRESENT

L SIG

R SIG

SPKR1 ON

SPKR2 ON

THERMPROT
VIPROT
AC PRESENT
DCPROT

LS L

LS R

L SIG
0V_SIG
0V_LS_L
0V_HF_L
+49V
-49V

+5V_D
+49V
-49V

0V_D
0V_PSU

R SIG
0V_SIG
0V_LS_R
0V_HF_R
+49V
-49V

0V_TRIG

LS L

0V_LS_L

0V_LS_R

LS R

+49V

0V_D

VIPROT_L
DCPROT_L

DCPROT_L

VIPROT_R
DCPROT_R

DCPROT_R

VIPROT_L
VIPROT_R

STANDBY

+49V

+5V_D

0V_D

0V_PSU

0V_LS_R

0V_HF_R

0V_LS_L

0V_HF_L

0V_D

0V_TRIG

0V_SIG

R103

330R 1W CF

R104

330R 1W CF

R105
100R 1W CF

R106
100R 1W CF

1
2
3
4

SK106

AMPCT4

LHC

2

RHC

3
1

4

L

5

6

R

7

SK105

HPSKT

1
2
3
4

SK107

AMPCT4

LS L

LS R

0V_LS_L

REMOTE

REMOTE

FROM PREAMP

INTEGRATED / PRE-POWER

MODE SELECT SWITCH

TRIGGER

TRIGGER

TP102

TP101

TP100

TP103

TP104

TP105

TP106

TP107

TP108

TP109

TP110

TP117

TP111

TP113

TP115

TP112

TP114

TP116

0V_D

+5V(D)

VPOS
VNEG

0V_PSU
PWRON

THPROT_uC

VIPROT_L
VIPROT_R

VIPROT_uC

AC_PRES

0V_TRIG
DCPROT_L
DCPROT_R

DCPROT_uC

RC5 IN

TRG IN

L882C2
L882C2_3.2.SCH

INPUT
0V_SIG

VIPROT

DCPROT

OUTPUT

0V_LS
0V_HF
VPOS
VNEG

L882C3
L882C3_3.2.SCH

INPUT
0V_SIG

VIPROT

DCPROT

OUTPUT

0V_LS
0V_HF
VPOS
VNEG

L882C4
L882C4_3.2.SCH

RLY100A

RLY G5Z-2A-E

RLY100B

RLY G5Z-2A-E

RLY100C
RLY G5Z-2A-E

RLY101A

RLY G5Z-2A-E

RLY101B

RLY G5Z-2A-E

RLY101C
RLY G5Z-2A-E

TR100
BD179

TR101
BD179

R101

100R SM

R102

100R SM

R107
220R SM

R108
220R SM

PCB

PCB

L882PB_3

TP118

TP119

TP120

TP121

1
2
3
4
5
6
7
8
9
10
11
12
13
14

SK103

FFC 14W 2.54MM VER
8K7014

EARTH LEAD

8M101

EL

EARTH LEAD

1

2

PL100

1

2

PL101

00_1086

JR

19/9/00

NO CHANGE TO THIS SHEET

2.0

R100

10R MF

00_1115

JR

16/10/00

NO CHANGE TO THIS SHEET

00_1129

JR

1/11/00

NO CHANGE TO THIS SHEET

2.1

2.2

00_1138

JR

27/11/00

NO CHANGE TO THIS SHEET

2.3

00_1134

MGM

17/11/00

NO CHANGE TO THIS SHEET

2.4

01_1101

JR

6/4/01

POWER SUPPLY FUSES AND DC OFFSET

3.2

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