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Arcam A32 P35/3 User Manual

Page 50

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ISSUE

DRAWING NO.

23425

DRAWING TITLE

Drawn by:

DATE

Filename

ECO No.

DESCRIPTION OF CHANGE

L911C2_1.1.SCH

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

AP85 third channel - output stage

Circuit Diagram

L911C2

J Reckless

4-Jun-2001

INITIALS

Date Printed

2

2

Sheet

of

Notes:

R324

1K0 SM

TR300
FMMT597

TR301
FMMT597

R315
100R SM

R316
100R SM

R319
100R SM

TR314
FMMT497

TR315
FMMT497

R317
100R SM

R318
100R SM

R320
100R SM

R322
22R SM

0V_SIG

C317

470N PE

0V_SIG

0V_SIG

INPUT

0V_SIG

R350
5R6 2W CF

C319
100N PE

0V_HF

0V_LS

C313

100N SM

R341

330R SM

R342

330R SM

R343
100R SM

R344
100R SM

R345
0R0 SM

R346
0R0 SM

R334
22K SM

R336
22K SM

D301
BAS16W SM

D302
BAS16W SM

TR312
FMMT497

TR304
FMMT597

TR313
FMMT497

TR302
FMMT597

DZ305
4V7 350MW SM

0V_HF

VIPROT

C320
100U NP

TR305
FMMT597

DZ306
4V7 350MW SM

0V_HF

DCPROT

OUTPUT

0V_LS

0V_HF

VPOS

VNEG

0V_HF

0V_HF

DZ300
15V 350MW SM

DZ301
15V 350MW SM

C309
100N SM

C310
100N SM

C314
100N SM

0V_SIG

0V_SIG

D304
1N4003F

D303
1N4003F

R302
10K SM

R327
22K SM

RV300
100R PSET

C312
10N SM

1
2

PL300

BIAS

R325
1K0 SM

R326
1K0 SM

ADJ BIAS

D300
BAS16W SM

R300
10K SM

R309
10K SM

R305
10K SM

R306
10K SM

+ C305

10U EL

MEASURE

TR318
SAP15N

TR319
SAP15P

R301
10K SM

C315
100N SM

R347

100R SM

R349

100R SM

R348

100R SM

R340
100K SM

DZ302
4V7 350MW SM

DZ303
4V7 350MW SM

3

2

1

8

4

IC300A

TL072CD

5

6

7

IC300B

TL072CD

R328

4K7 SM

0V_HF

0V_SIG

TR311
FMMT497

TR303
FMMT597

TR310
FMMT497

TR307
FMMT597

INPUT FILTER

V TO I AMP

DC SERVO

PNP CURRENT MIRROR

NPN CURRENT MIRROR

PRE DRIVER

PRE DRIVER

OUTPUT STAGE

OUTPUT STAGE

V-I PROTECTION

V-I PROTECTION

VI PROTECT
SIGNAL TO MICRO

DC OFFSET
DETECTION

DC OFFSET SIGNAL
TO MICRO

ZOBEL NETWORK

TR316
FMMT497

TR308
FMMT597

TR317
FMMT497

R311
10K SM

R312
10K SM

R313

10K SM

R303
10K SM

R304
10K SM

R307
10K SM

R310
4K7 SM

R329
4K7 SM

+

C300
100U EL

+

C301
100U EL

R338
150R SM

R339
150R SM

R308
22K SM

R314
10K SM

TR309
FMMT497

TR306
FMMT597

R323
22R SM

R321
22R SM

TP302

TP303

TP304

TP307

TP308

TP305

TP306

R337
22R SM

R331
1K5 SM

R332

1K8 SM

R330

1M0 SM

R333

3K3 SM

R335

3K3 SM

L300

2U2H LAC SMALL

C316
470P PPW

C311
100N PC

+ C318

10U EL

TR321
FMMT597

TR320
FMMT497

+ C302

100U EL 100V

+ C306

100U EL 100V

R352
470R 2W

R353

470R 2W

BOOTSTRAP

BOOTSTRAP

R351

5R6 2W CF

C307

100P SM

C308

100P SM

+ C303

100U EL

+ C304

100U EL

R354
1K0 SM

R355
6K8 SM

TR322

FMMT497

JR

30/1/01

PRODUCTION ISSUE

1.0

01_1018

01_1101

JR

4/6/01

DC OFFSET CHANGES

1.1

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