Arcam Diva A-85 Schematic

87654321

Downloaded from http://receiverfaq.ru/

D

L SIG
0V_SIG
0V_LS_L
0V_HF_L
+49V

-49V

R SIG
0V_SIG
0V_LS_R
0V_HF_R
+49V

-49V

L882C3
L882C3_3.2.SCH

INPUT
0V_SIG

0V_HF
VPOS
VNEG

L882C4
L882C4_3.2.SCH

INPUT
0V_SIG

0V_HF
VPOS
VNEG

VIPROT

DCPROT

OUTPUT0V_LS

VIPROT

DCPROT

OUTPUT0V_LS

VIPROT_L
DCPROT_L
LS L

VIPROT_R
DCPROT_R
LS R

0V_D
0V_PSU

STANDBY
VIPROT_L
VIPROT_R
0V_TRIG
DCPROT_L
DCPROT_R

L882C2
L882C2_3.2.SCH

0V_D +5V(D)
0V_PSU
PWRON

THPROT_uCVIPROT_L

VIPROT_R VIPROT_uC
DCPROT_L

DCPROT_R

DCPROT_uC

AC_PRES0V_TRIG

TRG IN

VPOS
VNEG

RC5 IN

+5V_D
+49V

-49V
THERMPROT
VIPROT
AC PRESENT
DCPROT
REMOTE
TRIGGER

0V_TRIG

0V_D

34

5 6

1 2

SP100

STAR_8

TP121

78

0V_SIG
0V_HF_R

D

0V_LS_R
0V_LS_L0V_HF_L
0V_PSU

C

FROM PREAMP

SK102

1
2
3
4

AMPCT4

0V_SIG

1

PHONO4G

F

EMC

N

SK104A

0V_SIG

SW100A
2PCO

1

2

PL100

2

C100
1N0 SM

0V_SIG

PL101

2

3

1

TP100

1

SK104B

F

N

PHONO4G

TP101

TP102

L SIG
R SIG

LS L

0V_LS_L

LS R

SK105

HPSKT

LHC

RHC

R

+49V

RLY100C

D100

SK106
1
2
3
4

AMPCT4

4

TP118

L

5
2

3
1

6
7

TP119

TP120

R105
100R 1W CF

R103
330R 1W CF

R104
330R 1W CF

R106
100R 1W CF

SK107
1
2
3
4

AMPCT4

1N4003F

TR100
BD179

RLY G5Z-2A-E

TR101
BD179

R107
220R SM

RLY101C
RLY G5Z-2A-E

R101
100R SM

R102
100R SM

R108
220R SM

D101
1N4003F

C

SPKR1 ON

SPKR2 ON

B

SK103

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

SW100B
2PCO

R100
10R MF

4

5

6

INTEGRATED / PRE-POWER
MODE SELECT SWITCH

+5V_D

+49V

STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT
VIPROT
DCPROT
AC PRESENT
TRIGGER
REMOTE
0V_D

TP103

TP104

TP105

TP106

TP107

TP108

TP109

TP110

TP117

LS L

TP111 TP113 TP115

0V_LS_L

LS R

TP112 TP114 TP116

0V_LS_R

RLY100A

RLY G5Z-2A-E

RLY100B

RLY G5Z-2A-E

SK100A

Top+

Top-

CAMCON_G

SK101A

Top+

Top-

CAMCON_G

RLY101A

RLY G5Z-2A-E

RLY101B

RLY G5Z-2A-E

SK100B

Bot+

Bot-

CAMCON_G

SK101B

Bot+

Bot-

CAMCON_G

PCB

PCB

L882PB_3
EL

EARTH LEAD

8M101

EARTH LEAD

0V_D

B

A

FFC 14W 2.54MM VER
8K7014

DRAWING TITLE

A85 amplifier and PSU - top sheet

23425

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

Notes:

Filename

L882C1_3.2.PRJ

Circuit Diagram

01_1101 JR 6/4/01 POWER SUPPLY FUSES AND DC OFFSET 3.2
00_1134 MGM 17/11/00 NO CHANGE TO THIS SHEET
00_1138 JR 27/11/00 NO CHANGE TO THIS SHEET
00_1129 JR 1/11/00 NO CHANGE TO THIS SHEET
00_1115 JR 16/10/00 NO CHANGE TO THIS SHEET
00_1086 JR 19/9/00 NO CHANGE TO THIS SHEET

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

6-Jun-2001

DATE

Drawn by:

J Reckless

1 4Sheet of

DRAWING NO.

L882C1

2.4

A

2.3

2.2

2.1

2.0

ISSUE

1 2 3 4 5 6 7 8

NEUTRAL

87654321

SK204

4
3

D

EMC Shield

BC200
TOOLING4.1

SH200
EMCMAINS

Green

SK202
CAGECLAMP1

1

C205
3N3 MAINS

TP206

N E L

N

E

TP200

TP207

EARTH

C234

SK203

IEC3 NO RIVETS

L

C206

3N3 MAINS

LIVENEUTRAL

LIVE

NEUTRAL

LIVE

SW200B
VOL SEL SLIDE

F200

AS2A

SW200A
VOL SEL SLIDE

F201

AS2A

2
1 5

MOLEXPWR8

RLY200A

DPDT5V

C207

3N3 MAINS

RLY200B

DPDT5V

C208

3N3 MAINS

8
7
6

TP202

TP201

TP210

TP203

1 0V

NF
VR200

VDR 115V

2
3

NF

VR201

VDR 115V

4

TX200

9V

115V

0V

9V

0V

115V
TX 3VA 9301

HS200
TO220HS08REG

9VRMS

IC201

F202

5

T750mA SM

C224
6
7

8

100N CD

D200
1N4003F

D201
1N4003F

TP204

D202
1N4003F

+

C227
3300u 25V

D203
1N4003F

7805

I

Vin

C225
100N CD

GND

G

Vout

O

HS

TP205

C226
100N CD

0V_D

+5V_D

+5V(D)

+

C228
1000u 10V

0V_D

D

220N X2 CLASS

R231
1M5 VR25

C

+49V

TP208

VPOS

SK205
1
2
3
4
5
6

AMPCT6

VNEG

SK200

3
2
1

MOLEXPWR6

1

BR200
BRGBU8D

+

6
5
4

3

~

-

4

2

~

+

C209
10,000u 63V

+

C210
10,000u 63V

C211
100N PC

0V_PSU

C212
100N PC

0V_PSU

TP209

MAINS WIRING AND AUXILIARY SUPPLY

9VRMS

R211
10K SM

TR204
BC849B

D206
BAS16W SM

0V_D

+5V_D

R219
1K8 SM

+

C229
22U EL

+5V_D

IC202E

74HC14D

MICROPROCESSOR SIGNALS INTERFACE

1011

R220

AC_PRES

10R SM

C

POWER AMP SUPPLY

-49V

CARRIER FILTER AND DEMODULATOR

R223
10K SM

1

R229
100K SM

C231

1N0 SM

5
6

R209
10K SM

R224
1K8 SM

R230
1K5 SM

R225
1K8 SM

IC200A

2
3

LM393A SM

C230
10N SM

R222
10K SM

TRG IN

SK201A

B

TP211

Near to PCB

JACK3.5X2

MODULATED RC5
REMOTE CONTROL INPUT

R226
470R SM

R227
1K0 SM

R228
100K SM

DZ204
4V7 350MW SM

RC5 IN

R208
10K SM

L200
27mH

IC200B

7

LM393A SM

C200
680P PP

+5V_D

84

IC200C
LM393A SM

C232
100N SM

+

C233
10U EL

VIPROT_L

R201
1K0 SM

R202

VIPROT_R

1K0 SM

14

IC202G
74HC14D

7

C214
10N SM

0V_D

C201
100N SM

IC202A

1 2

74HC14D
IC202B

3 4

C215
10N SM

74HC14D

C202
100N SM

0V_D

TH200
PTH90DEG

R205
1K0 SM

R213
4K7 SM

R214
4K7 SM

IC202F

74HC14D

C219
10N SM

+5V_D

R206
1K0 SM

0V_D

R221

1213

10R SM

TR205
BC856B

THPROT_uC

B

C203
100N SM

VIPROT_uC

C218
10N SM

+5V_D

0V_TRIG

+49V

R218

+5V_D

TR200
RLY200C
DPDT5V

R200

A

STANDBY RELAY CONTROL

R212

PWRON

4K7 SM

1K0 SM

TR203
FMMT497

D205
BAS16W SM C213

10N SM

TR202
FMMT597

0V_D

TRIGGER OUTPUT
APPROX 13.5VDC
60mA MAX CURRENT

SK201B

Far from PCB

JACK3.5X2

0V_TRIG

C235

1N0 SM

BD179

TP212

R210
10K SM

CAMCON_G
SK101C

R217
10R SM

+

C222
10U EL

CHASS

TR201
FMMT497

10K SM

DZ207
15V 350MW SM

+

C223
10U EL

0V_TRIG

DRAWING TITLE

A85 amplifier - power supply and microcontroller interface

23425

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

DCPROT_L

DCPROT_R

Notes:

Filename

L882C2_3.2.SCH

R203
1K0 SM

R204
1K0 SM

C216
10N SM

C217
10N SM

0V_D

Circuit Diagram

IC202C

5 6

74HC14D
IC202D

74HC14D

R207
1K0 SM

0V_D

TR206
BC856B

DATE

C204
100N SM

DCPROT_uC

C220
100N SM

NO CHANGE TO THIS SHEET 2.1

Drawn by:

J Reckless

2 4Sheet of

DRAWING NO.

L882C2

A

2.4

2.2

ISSUE

R215
4K7 SM

89

R216
4K7 SM

01_1101 JR 6/4/01 POWER SUPPLY FUSES AND DC OFFSET 3.2
00_1134 MGM 17/11/00 NO CHANGE TO THIS SHEET
00_1138 JR 27/11/00 NO CHANGE TO THIS SHEET 2.3
00_1129 JR 1/11/00 NO CHANGE TO THIS SHEET
00_1115 JR 16/10/00
00_1086 JR 19-9-00 R231, C234, C235 ADDED FOR EMC 2.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

C221
10N SM

INITIALS

6-Jun-2001

1 2 3 4 5 6 7 8

87654321

D

R319
100R SM

R300
10K SM

R315
100R SM

R316
100R SM

PRE DRIVER

VPOS

D

PNP CURRENT MIRROR

TR310
TR300
FMMT597

+

C300
100U EL

0V_HF

C

INPUT

DZ302
4V7 350MW SM

DZ303
4V7 350MW SM

0V_SIG

0V_SIG

+

0V_HF

C301
100U EL

DZ300
15V 350MW SM

C310
100N SM

0V_SIG

INPUT FILTER V TO I AMP

R324
1K0 SM

C309
100N SM

0V_HF

DZ301
15V 350MW SM

R327
22K SM

0V_SIG

3
2

C316
470P PPW

C314
100N SM

TR311
FMMT497

R328
4K7 SM

TP302

84

IC300A

TL072CD

TP303

TR303
FMMT597

7

0V_SIG

1

C317

470N PE

IC300B

TL072CD

TP304

R322
22R SM

R337
22R SM

0V_SIG

R333
3K3 SM

100P SM

DC SERVO

R330

6

1M0 SM

5

0V_SIG

R331
1K5 SM

R332
1K8 SM

C311
100N PC

R335
3K3 SM

100P SM

C307

TR322
FMMT497

C308

TR301
FMMT597

TR321
FMMT597

R355
6K8 SM

R354
1K0 SM

TR320
FMMT497

TR309
FMMT497

R338
150R SM

BOOTSTRAP

+

C302
100U EL 100V

R352
470R 2W MF 5%

470R 2W MF 5%
R353

+

C318
10U EL

+

C306
100U EL 100V

BOOTSTRAP

R339
150R SM

TR306
FMMT597

FMMT497

R321
22R SM

C312

10N SM

R323
22R SM

ADJ BIAS

RV300
100R PSET

D300
BAS16W SM

OUTPUT STAGE

TR318
SAP15N

TP305

R325
1K0 SM

R340
100K SM

R326
1K0 SM

TP306

TR319
SAP15P

OUTPUT STAGE

PL300

1
2

MEASURE
BIAS
(SET TO 16mV)

R341
330R SM

R342
330R SM

R343
100R SM

R344
100R SM

V-I PROTECTION

R334
22K SM

R347
100R SM

R345
0R0 SM

+

C303
100U EL

+

C304
100U EL

R346
0R0 SM

R348
100R SM

R336
22K SM

V-I PROTECTION

D301
BAS16W SM

TR312
FMMT497

TR304
FMMT597

D302
BAS16W SM

D303
1N4003F

DC OFFSET SIGNAL
TO MICRO

D304
1N4003F

0V_HF

R349
100R SM

DCPROT

TR305
FMMT597

TP308

DZ306
4V7 350MW SM

R302
10K SM

R310
4K7 SM

C315
100N SM

R301
10K SM

R329
4K7 SM

TR313
FMMT497

R303
10K SM

R304
10K SM

0V_HF

TR316
FMMT497

TR302
FMMT597

R305
10K SM

R306
10K SM

+

DC OFFSET
DETECTION

R307
10K SM

R313
10K SM

VI PROTECT
SIGNAL TO MICRO

TP307

C305
10U EL

R308
22K SM

VIPROT

DZ305
4V7 350MW SM

0V_HF 0V_LS

C320
100U NP

2U2H LAC SMALL

R350
5R6 2W CF

C319
100N PE

R314
10K SM

R351
10R MF

L300

ZOBEL NETWORK

C313

100N SM

C

OUTPUT

0V_LS

0V_HF

TR314

R309
10K SM

FMMT497

NPN CURRENT MIRROR

R317

B

100R SM

R320
100R SM

TR315
FMMT497

R318
100R SM

TR307

FMMT597

PRE DRIVER

TR308
FMMT597

R311
10K SM

R312
10K SM

B

TR317
FMMT497

VNEG

A

01_1101 JR 6/4/01 POWER SUPPLY FUSES AND DC OFFSET 3.2

DRAWING TITLE

A85 amplifier - power output stage left

Circuit Diagram

23425

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

1 2 3 4 5 6 7 8

Notes:

Filename

L882C3_3.2.SCH

00_1134 MGM 17/11/00 NO CHANGE TO THIS SHEET
00_1138 JR 27/11/00 C303 C304 FROM 10U TO 100U 2.3
00_1129 JR 1/11/00 R345 R346 C307 C308 VALUE CHANGES
00_1115 JR 16/10/00 R338 R339 CHANGED TO 150R
00_1086 JR 19/9/00 NO CHANGE TO THIS SHEET 2.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

6-Jun-2001

DATE

Drawn by:

J Reckless

3 4Sheet of

DRAWING NO.

L882C3

2.4

2.2

2.1

ISSUE

A

87654321

D

R419
100R SM

R400
10K SM

R415
100R SM

R416
100R SM

PRE DRIVER

VPOS

D

PNP CURRENT MIRROR

TR410
TR400
FMMT597

+

C400
100U EL

0V_HF

C

INPUT

DZ402
4V7 350MW SM

DZ403
4V7 350MW SM

0V_SIG

0V_SIG

+

0V_HF

C401
100U EL

DZ400
15V 350MW SM

C410
100N SM

0V_SIG

INPUT FILTER V TO I AMP

R424
1K0 SM

C409
100N SM

0V_HF

DZ401
15V 350MW SM

R427
22K SM

0V_SIG

3
2

C416
470P PPW C411

C414
100N SM

TR411
FMMT497

R428
4K7 SM

TP402

84

IC400A

TL072CD

TP403

TR403
FMMT597

7

0V_SIG

1

C417

470N PE

IC400B

TL072CD

TP404

R422
22R SM

R437
22R SM

0V_SIG

R433
3K3 SM

100P SM

DC SERVO

R430

6

1M0 SM

5

0V_SIG

R431
1K5 SM

R432
1K8 SM

TR422
FMMT497

100N PC

R435
3K3 SM

100P SM

C407

C408

TR401
FMMT597

TR421
FMMT597

R455
6K8 SM

R454
1K0 SM

TR420
FMMT497

TR409
FMMT497

R438
150R SM

BOOTSTRAP

+

C402
100U EL 100V

R452
470R 2W MF 5%

470R 2W MF 5%

R453

+

C418
10U EL

+

C406
100U EL 100V

BOOTSTRAP

R439
150R SM

TR406
FMMT597

FMMT497

R421
22R SM

C412

10N SM

R423
22R SM

ADJ BIAS

RV400
100R PSET

D400
BAS16W SM

OUTPUT STAGE

TR418
SAP15N

TP405

R425
1K0 SM

R440
100K SM

R426
1K0 SM

TP406

TR419
SAP15P

OUTPUT STAGE

PL400

1
2

MEASURE
BIAS
(SET TO 16 mV)

R441
330R SM

R442
330R SM

R443
100R SM

R444
100R SM

V-I PROTECTION

R434
22K SM

R447
100R SM

R445
0R0 SM

+

C403
100U EL

+

C404
100U EL

R446
0R0 SM

R448
100R SM

R436
22K SM

V-I PROTECTION

D401
BAS16W SM

TR412
FMMT497

TR404
FMMT597

D402
BAS16W SM

D403
1N4003F

DC OFFSET SIGNAL
TO MICRO

D404
1N4003F

0V_HF

R449
100R SM

DCPROT

TR405
FMMT597

TP408

DZ406
4V7 350MW SM

R402
10K SM

R410
4K7 SM

C415
100N SM

R401
10K SM

R429
4K7 SM

TR413
FMMT497

R403
10K SM

R404
10K SM

0V_HF

TR416
FMMT497

TR402
FMMT597

R405
10K SM

R406
10K SM

+

DC OFFSET
DETECTION

R407
10K SM

R413
10K SM

VI PROTECT
SIGNAL TO MICRO

TP407

C405
10U EL

R408
22K SM

VIPROT

DZ405
4V7 350MW SM

0V_HF 0V_LS

C420
100U NP

R450
5R6 2W CF

C419
100N PE

R414
10K SM

R451
10R MF

L400

2U2H LAC SMALL

ZOBEL NETWORK

C413

100N SM

C

OUTPUT

0V_LS

0V_HF

TR414

R409
10K SM

FMMT497

NPN CURRENT MIRROR

R417

B

100R SM

R420
100R SM

TR415
FMMT497

R418
100R SM

TR407

FMMT597

PRE DRIVER

TR408
FMMT597

R411
10K SM

R412
10K SM

B

TR417
FMMT497

VNEG

A

01_1101 JR 6/4/01 POWER SUPPLY FUSES AND DC OFFSET 3.2

DRAWING TITLE

A85 amplifier - power output stage right

Circuit Diagram

23425

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

1 2 3 4 5 6 7 8

Notes:

Filename

L882C4_3.2.SCH

00_1134 MGM 17/11/00 L300 L400 CHANGED TO 7D002C
00_1138 JR 27/11/00 C403 C404 FROM 10U TO 100U 2.3
00_1129 JR 1/11/00 R435 R436 C407 C408 VALUE CHANGES
00_1115 JR 16/10/00 R438 R439 CHANGED TO 150R
00_1086 JR 19/9/00 NO CHANGE TO THIS SHEET 2.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

6-Jun-2001

DATE

Drawn by:

J Reckless

4 4Sheet of

DRAWING NO.

L882C4

2.4

2.2

2.1

ISSUE

A

DISP1
DISP SSV-07MS09

87654321

R1

R3

R2

10K SM

D

C

B

C1

100N SM

Test pad change for issue 3:
Q_23= SO (was STBLED)
Q_9=SI (was GND)

DATA I/O

SK1

A

FFC8H SM

R14
4K7 SM

+5V

SW3
PAUSE

R15
1K0 SM

R11
10K SM

Q3
BC847B

Q_26

Q5
BC856B

Q6
BC846B

R12
10K SM

D5

BZX284-C5V6

R7
33K SM

F1

SW4
PLAY

Q4
BC847B

VKK

CATHODE BIAS CCT

IRIRQ

+

SW5
STOP

C5
10U EL SM

SW6
OPEN

Q_18

R5
470R SM

LED2
LED GREEN3.1MM

HDCD

+

C6

10U EL SM

(was POWER)
SW7

FWD>>

SO
SI

SCK
CS

F2

Q_29

Q_1

Q_2

Q_3

Q_4

BAS16W SM

D1

BAS16W SM

D2

BAS16W SM

D3

BAS16W SM

D4

R16
1K0 SM

R6
1K0 SM

HDCDLED

STBLED

C4

1N0 SM

1
2
3
4
5
6
7
8

9
10
11

+5V

+5V

VKK_D

VKK_CK

VSS

Q1
BC856B

+5V

38L439L340L241L142

VDD

Q2
BC847B

Q_24

Q_25

43

44

OSC

SW1
SW2
SW3
SW4
SO
SI
VSS
SCK
CS
K1
K2

K312K413VDD14S115S216S317S418S519S620S721S8

C2
100N SM

DRAWING TITLE

DVD DISPLAY PCB

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

F11F12G15G26G37G48G59G610G7

11

C3
100N SM

G1
G2
G3

37

G434G335G236G1

G5

G6
S16/G7
S15/G8
S14/G9

S13/G10

VEE

S12/G11

S11
S10

S9

22

LED1

R

On=Green
Standby=red

G

LED RED/GRN 3MM

Notes:

Filename

J:\ECO_wip\L886 DV88 Display board correct R4 cock-up\L8863\L8863.0a.ddb - L886_3.0a.sch

G4

Z1

33

G5

32

G6

31

G7

30
29
28
27

VKK

26
25
24
23

BU2872AK

SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1

R4
220R SM

FIX1
FIXING HOLE

Circuit Diagram

SEG15
SEG14
SEG13

SEG12
SEG11
SEG10
SEG9

74HC74 SM

7

FIX2
FIXING HOLE

GND

14

+5V

VCC

Z2C

C8
100N SM

FIX3
FIXING HOLE

FIX4
FIXING HOLE

ECO No. DESCRIPTION OF CHANGE

Date Printed

S125S226S327S428S529S630S731S832S933S1034S1135S1236S1337S1438S1539F242F2

F2F1

43

PCB

L886PB_3

SP1

IR RX SUPPORT PAD

PS

PHOTO_STRIP

EL1

UPDATE_BOX

DD2

10

12

D

11

CLK

Display clips: PCB footprint is called E882PM
This footprint will accept either E874PM (current clip)
or E882PM (new clip not designed yet)
This part type currently calls for p/n E874PM, change to E882PM when new clip is available

INITIALS

Z2B

9

Q

SD

8

Q

CD

74HC74 SM

13

LC1

VFD CLIP

E882PM
E874PM

DVD DISPLAY CLIP

PG 17/11/00 Correct error R4 is 1206 not 0805 3.0a
PG00_1082 14/09/00 Change RX1 to l/p part, test pad changes, display clip, R4 VALUE 3.0
CL 23/08/00 MINOR MODIFICATIONS 2.0
CL 31/07/00 PRODUCTION RELEASE 1.0

DATE

LC2

VFD CLIP

E882PM
E874PM

DVD DISPLAY CLIP

Drawn by:

PG17-Nov-2000

DD6

CLOGO

Layout by

Cliff

1 1Sheet of

DRILL_DWG

DRAWING NO.

10K SM

10K SM

SBX1610-52/PIC-26043TM2

Q_7

1

Q_6

2

Q_5

3

Q_30

4

Q_8

5
6
7
8

1 2 3 4 5 6 7 8

Q_27

K3

Q_28

K2

+5V

R13
1M0 SM

3

RX1

O/P

+5V

O/P

GND1Case

Case

GND +5V

DUAL FOOTPRINT

+5V

R8
4K7 SM

Q_23

SO
IRIRQ
CS
SCK
SI

Q_9

2
3

C7
100N SM

2

Pwr in

+5V

SW1
SKIP>

SW8
<<RWD

(was MENU)

+5V

4

D

SD

CLK

CD

1

R9
10K SM

SK2

Q_10

1

Q_11

2

Q_12

3

Q_13

4
5

Q_14

6

AMPCT6H

K4

SW2
<SKIP

VKK switching CCT

Z2A

5

Q

6

Q

74HC74 SM

VKKIN VKK

R10
10K SM

VKKIN

VKK = -19.5V
F1= -13.9V
F2 = -9.6V

PCB

IR RX

SUPPORT PAD

DD1

PCB MATERIAL

FR4, 1 OZ Cu

FR4_1OZ

Photo Strip

Update Box

Drilling

Detail

DD3

A2 Horizontal

Paper Marker

DD_A3H

DD4

A2 Vertical

Paper Marker

DD_A3V

FD_1

FIDUCIAL

D

C

B

FD_2

FIDUCIAL

A

ISSUE

L886_3

4321

D

C

D

C

Main signal path
L937C2_1.1.SCH

B

Power supply
L937C3_1.1.SCH

B

USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAM

DRAWING TITLE

Integrated amplifier preamp

PCB1

A

PCB

L937PB_1

23425

A & R Cambridge Ltd.
Pembroke Avenue

Notes:

Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB

1 2 3 4

Filename

J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C1_1.0.PRJ

Circuit Diagram

01_E014 JBR 28/11/01 Fuses uprated to 2A 1.1
01_1142 JBR 14/8/01 First production release 1.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

28-Nov-2001

DATE

Drawn by:

JBR

1 3Sheet of

DRAWING NO.

L937C1

ISSUE

A

87654321

D100

+15V -15V

BAV99W DUAL SM

SK2A

CDL1 CDL

0V_SIG

D101
BAV99W DUAL SM

D102
BAV99W DUAL SM

0V_SIG

TUNR1

D106
BAV99W DUAL SM

D107
BAV99W DUAL SM

0V_SIG

D108
BAV99W DUAL SM

D112
BAV99W DUAL SM

0V_SIG

D113
BAV99W DUAL SM

D114
BAV99W DUAL SM

0V_SIG

D115
BAV99W DUAL SM

D116
BAV99W DUAL SM

0V_SIG

D117
BAV99W DUAL SM

R100
1K0 SM

R101
1K0 SM

R102
1K0 SM

R125
1K0 SM

R126
1K0 SM

R127
1K0 SM

R156
1K0 SM

R157
1K0 SM

R158
1K0 SM

R189
1K0 SM

R190
1K0 SM

R191
1K0 SM

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

0V_SIG

R103
100K SM

CDR

R104
100K SM

TUNL

R105
100K SM

TUNR

R128
100K SM

AVL

R129
100K SM

AVR

R130
100K SM

DVDL

R159
100K SM

DVDR

R160
100K SM

TAPEIL

R161
100K SM

TAPEIR

R192
100K SM

VCRIL

R193
100K SM

VCRIR

R194
100K SM

CD L

470P FKP2

CD R

0V_SIG

TUNER L

TUNER R

0V_SIG

AV L

AV R

0V_SIG

DVD L

DVD R

TAPE IN L

TAPE IN R

VCR IN L

VCR IN R

C101

C102
470P FKP2

C103
470P FKP2

C122
470P FKP2

C123
470P FKP2

C124
470P FKP2

C140
470P FKP2

C141
470P FKP2

C142
470P FKP2

C161
470P FKP2

C162
470P FKP2

C163
470P FKP2

CD INPUT

1

F

EMC

N

C100
1N0 SM

0V_SIG

D

TUNER INPUT

CDR1

PHONO4G

+15V -15V

+15V -15V

SK2B

TUNL1

F

N

PHONO4G

+15V -15V

+15V -15V

C

AV INPUT

SK3A

AVL1

1

F

EMC

N

C121
1N0 SM

0V_SIG

DVD INPUT

B

TAPE INPUT

AVR1

PHONO4G

+15V -15V

+15V -15V

SK3B

DVDL1

F

N

DVDR1

PHONO4G

+15V -15V

+15V -15V

SK4A

TAPEIL1

1

F

EMC

N

C139
1N0 SM

0V_SIG

VCR INPUT

A

C160
1N0 SM

0V_SIG

TAPEIR1

PHONO4G

+15V -15V

+15V -15V

SK5A

VCRIL1

1

F

EMC

N

VCRIR1

PHONO4G

+15V -15V

1 2 3 4 5 6 7 8

+15V

-15V

+15V

-15V

+15V

-15V

0V_SIG

C106
100N SM

C107
100N SM

C125
100N SM

C126
100N SM

C127
100N SM

C128
100N SM

0V_SIG

0V_SIG

+15V

C104
100N SM

C105
100N SM

-15V

0V_SIG

0V_SIG

0V_SIG

+15V

-15V

+15V

C145
100N SM

C146
100N SM

-15V

AUX INPUT

C164
1N0 SM

VCR2

C143
100N SM

C144
100N SM

PHONO2G

AUX L
CD L
TUNER L
AV L
DVD L

VCR IN L
MODULE L

0V_SIG

AUX R
CD R
TUNER R
AV R
DVD R

VCR IN R
MODULE R

TAPE 2

AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L

MODULE L

VCR01

AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R

MODULE R

AUX L
CD L
TUNER L
AV L
DVD L
TAPE IN L
VCR IN L
MODULE L

LIST2

AUX R
CD R
TUNER R
AV R
DVD R
TAPE IN R
VCR IN R
MODULE R

LISTEN0

LISTEN1

LISTEN2

D118
BAV99W DUAL SM

AUXIL1

1

TAPE 1

TAPE 2

TAPE 0

TAPE 1

LIST1

TAPE 0

0V_SIG

0V_SIG

VCR 2

0V_SIG

VCR 2

0V_SIG

LIST0

VCR 1

VCR 1

R162
22K SM

R163
22K SM

R164
22K SM

R165
22K SM

R166
22K SM

R167
22K SM

R168
22K SM

R169
22K SM

TAP0

TAP1

TAP2

TAPE0

TAPE1

TAPE2

VCR11

VCR21

VCR0

VCR1

+15V -15V

SK6

F

EMC

N

0V_SIG

AUXIR1

+15V -15V

D119
BAV99W DUAL SM

VCR 0

VCR 0

R195
1K0 SM

R196
1K0 SM

+5V

+5V

+5V

+5V

-15V

-15V

LISTEN 0
LISTEN 1
LISTEN 2

LISTEN 0
LISTEN 1
LISTEN 2

12
11
10

16
15

14

12
11
10

16
15

14

12
11
10

16
15

14

12
11
10

16
15

14

0V_SIG

0V_SIG

0V_SIG

0V_SIG

Z100

4

X0

5

X1

6

X2

7

X3
X4
X5
X6

9

X7

2

EN

1

A0
A1
A2

GND

3

V-

DG408DY
Z101

4

X0

5

X1

6

X2

7

X3
X4
X5
X6

9

X7

2

EN

1

A0
A1
A2

GND

3

V-

DG408DY
Z102

4

X0

5

X1

6

X2

7

X3
X4
X5
X6

9

X7

2

EN

1

A0
A1
A2

GND

3

V-

DG408DY
Z103

4

X0

5

X1

6

X2

7

X3
X4
X5
X6

9

X7

2

EN

1

A0
A1
A2

GND

3

V-

DG408DY

R170
22K SM

R171
22K SM

R172
22K SM

R173
22K SM

R174
22K SM

R175
22K SM

R176
22K SM

R177
22K SM

AUXL

R197
100K SM

R198
100K SM

+5V

+5V

AUXR

-15V

-15V

AUX R

AUX L

V+

D

V+

D

V+

D

V+

D

4
5
6

7
12
11
10

9

2

1
16
15

14

3

4

5

6

7
12
11
10

9

2

1
16
15

14

3

+15V
13
8

R106
1M0 SM

0V_SIG

+15V-15V
13
8

R107
1M0 SM

0V_SIG

+15V
13
8

R131
1M0 SM

0V_SIG

+15V-15V
13
8

R132
1M0 SM

0V_SIG

Z104

X0

V+
X1
X2
X3
X4
X5
X6
X7

EN
A0
A1
A2

GND
V-

DG408DY
Z105

X0

V+
X1
X2
X3
X4
X5
X6
X7

EN
A0
A1
A2

GND
V-

DG408DY

SK103

1
2
3
4
5
6
7

TO PHONO PCB

8

AMPCT8

C165

0V_SIG

470P FKP2

C166
470P FKP2

D

D

AUX R

AUX L

13
8

13
8

+15V

+15V

+15V1

0V_HF

0V_SIG

0V_SIG

-15V1

-15V

3
2

5
6

3
2

5
6

C147
100N PE

C167
100N PE

+15V

AUXR1

AUXL1

+15V -15V

D103
Z109A
TL072 SM

Z109B
TL072 SM

Z110A
TL072 SM

Z110B
TL072 SM

C148

22P SM
R178
22K SM

2

Z115A

3

OPA2134PA SM

C149

22P SM
R179
22K SM

2

Z116A

3

OPA2134PA SM

Z109C

TL072 SM

Z113C

TL072 SM

BAV99W DUAL SM

R108

1

47R SM

C108
100P SM

+15V -15V

D104

BAV99W DUAL SM

R109

7

47R SM

C109
100P SM

+15V -15V

D109

BAV99W DUAL SM

R133

1

47R SM

C129
100P SM

+15V -15V

D110

BAV99W DUAL SM

R134

7

47R SM

C130
100P SM

Z115_1A

1

R180
100K SM

R199
100K SM

84

-15V

84

-15V

7

OPA2134PA SM
+15V

1

7

OPA2134PA SM

C168
100N SM

0V_SIG 0V_SIG 0V_SIG 0V_SIG

C169
100N SM

-15V2

C170
100N SM

0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG

C171
100N SM

C150

470N PE

+

+

-15V
C151

470N PE

TAPE02

Z115B

C188
10U EL

C189
10U EL

Z116_1A

Z116B

TL072 SM

TL072 SM

TAPEO1

0V_SIG

VCRO1

0V_SIG

VCR02

Z110C

Z114C

VCR OUTPUT

6
5

0V_SIG

0V_SIG

6
5

0V_SIG

84

84

SK4B

F

N

PHONO4G

SK5B

F

N

PHONO4G

R183
1M0 SM

R184
1M0 SM

C172
100N SM

C173
100N SM

C174
100N SM

C175
100N SM

TAPE OUTPUT

TONE*

C152
100N SM

TONE*

Z111C

TL072 SM

Z115C

OPA2134PA SM

84

84

0V_SIG

C176
100N SM

C177
100N SM

C178
100N SM

C179
100N SM

1
2
3
4

6
7
8

+

C110
100U EL

0V_SIG

+

C131
100U EL

0V_SIG

Z106

SEL1
D1
S1
V­GND5VL
S4
D4
SEL4

DG413DY

+15V2

Z112C

TL072 SM

OPA2134PA SM

SEL2

SEL3

+15V

84

84

Z116C

+5V

R110
2K2 SM

R112
22K SM

R111
2K2 SM

Z115_1B

+5V

R135
2K2 SM

R137
22K SM

R136
2K2 SM

Z116_1B

TONE*

+5V

C180
100N SM

C181
100N SM

C182
100N SM

C183
100N SM

/TONE

TONE*

OPA2134PA SM

16
15

D2

14

S2

13

V+

12
11

S3

10

D3

9

Z111_3

Z113_3

+15V-15V

0V_SIG

+15V

84

Z117C

R113
22K SM

+

R138
22K SM

+

Z111A
TL072 SM

3
2

C111
10U CERAFINE

Z113A
TL072 SM

3
2

C132
10U CERAFINE

+

Z107_4

C153
100N SM

Z107_13

0V_SIG

0V_SDATA

0V_SLOAD

0V_SCLK

C184
100N SM

C185
100N SM

C154
10U EL

Z111_7

Z113_7

1

1

0V_SIG

R182
100R SM

R200
2R2 SM
R201
2R2 SM
R202
2R2 SM

Z111_1

Z113_1

C155
100N SM

D105
BAV99W DUAL SM

0V_SIG

1618

Z108D
17

DS1844

5
6

R115
2K7 SM

R116
2K7 SM

D111
BAV99W DUAL SM

62

Z108B
7

DS1844

5
6

R140
2K7 SM

R141
2K7 SM

0V_SIG

C156
100N SM

1

0V_SIG

AVCC

SCLK

SDATA

+5V

C186

100N SM

0V_SIG

Z112_3

Z108_19

C113
470N PE

Z114_3

Z108_3

C134
470N PE

LFO

LMO
RFO

RMO

16

R181
10K SM

DS1844

0V_SIG

DS1844

0V_SIG

1519

53

+

C157
100U EL

3

2
14

15

Z107
VSDVC

Z108A
14

0V_SIG

Z108C
4

0V_SIG

0V_SIG

+

R117
5K6 SM

R142
5K6 SM

C187
10U EL

C114
CFKP2 63V 2N2

3
2

C135
CFKP2 63V 2N2

+15V

2

Z117A

3

OPA2134PA SM

6

Z117B

5

OPA2134PA SM

R114
22K SM

7
Z111B

TL072 SM

C112

470N PE

C192

470N PE

+5V

R139
22K SM

7
Z113B

TL072 SM

C133

470N PE

C193

470N PE

+5V

R185
22R SM

Z107_1

7

DVCC

4

LIN

5

LGND

13

RIN

12

RGND

DGND11XCS6DATA9CCLK10XMUTE8AGND

SLOAD

DRAWING TITLE

Integrated amplifier preamp - main signal path

23425

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

Notes:

Filename

J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C2_1.0.SCH

Circuit Diagram

Z112A
TL072 SM

3
2

R118
22K SM

Z114A
TL072 SM

C136

22P SM

R143
22K SM

+

C190
10U EL

+

C191
10U EL

-15V

C158
22P SM

C159
22P SM

D120
BAS16W SM

C115

22P SM

1

7

Z112B
TL072 SM

Z112_1

5

1

6

Z114B

Z114_1

TL072 SM

5

1

6

+15V -15V

0V_SIG

SK102_1

R186
47R SM

SK102_3

R187
47R SM

+5V

+-RLY100C

RLY DPDT 5V SM

Q100
BC849B

0V_D

Z112_7

7

0V_SIG

7

R144
22K SM

R145
22K SM

+

C137
10U CERAFINE

0V_SIG

D121
BAV99W DUAL SM

RLY DPDT 5V SM

0V_SIG

R203
4K7 SM

01_E014 JBR 28/11/01 Fuses uprated to 2A 1.1
01_1142 JBR 14/8/01 First production release 1.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

C117

+

10U CERAFINE

R119
22K SM

R120
22K SM

+

C116
10U CERAFINE

C138

+

10U CERAFINE

D122
BAV99W DUAL SM

RLY100A

MUTE*

INITIALS

Z106_14

R121
22K SM

Z106_11Z114_7

R146
22K SM

RLY100B

RLY DPDT 5V SM

DATE

SCLK

SDATA

TONEID

0V_D

0V_TONEID

SK102
1
2
3
4

AMPCT4
TO POWER AMP I/P

Drawn by:

JBR28-Nov-2001

SCLK

SDATA

TONEID

IC DS1844

0V_TONEID

0V_SDATA

0V_SCLK

LISTEN 0
LISTEN 1
LISTEN 2
VCR 0
VCR 1
VCR 2
TAPE 0
TAPE 1
TAPE 2

TONE*
TONEID

0V_SDATA

13
12

9

R122
2R2 SM

R124
2R2 SM

R123
2R2 SM

MUTE*

SDATA

0V_SLOAD

0V_SIG

2 3Sheet of

+5V

CLK
DIN
RST

R147
22K SM

R148
22K SM

R149
22K SM

R150
22K SM

SLOAD

0V_SCLK

R188

10K SM

20

Z108E

VCC

1

PS

8

R/W

11

DOUT

GND

10

0V_SIG

SCLK

AUX L
AUX R
CD L
CD R
TUNER L
TUNER R
AV L
AV R
DVD L
DVD R
TAPE IN L
TAPE IN R
VCR IN L
VCR IN R
MODULE L

MODULE R

0V_MODULE

DRAWING NO.

C118
100N SM

R204
10K SM

C119
10N SM

R151
22K SM

R152
22K SM

R153
22K SM

R154
22K SM

R155
22K SM

FFC22V1MM

L937C2

+

C120
10U EL

SK100
1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17

TO MICRO / DISPLAY PCB

18
19
20
21
22

SK101

1

2

3

4

5

6

7

8

9
10
11
12
13
14
15
16
17
18
19
20

TO PLUG IN MODULE PCB
21
22

23
24
25
26
27
28
29
30

FFC30V SM

ISSUE

D

C

B

A

4321

D302

BAS16W SM

Q305
2SA1964

D

C

SK300
MOLEXPWR4

3

4

1

2

F300

T2A SM

F301

T2A SM

AC1

C307
470N PE

AC2

D300
S1D

C308
100N SM

C309
100N SM

D301
S1D

UR+

+

C300
1000u 35V

Q300
J112

R300
330R SM

C314
1N0 PP

C315
1N0 PP

Q303
J112

Q306
BC846B

D310+

+

C302
220U EL

+

C312
220U EL

D311-

D310
15V 350MW SM

D311
15V 350MW SM

+15V

+

+

I

+15V3

C304
100N SM

C303
3300u 25V

C313
3300u 25V

Z301
LM317T

Vin

0V_PSU

D304

BAS16W SM

Vout

ADJ

A

+3.75V

R302
1K2 SM

R307
220R SM

O

+

C305
10U EL

-15V

D305
BAS16W SM

+15V

0V_PSU

0V_MODULE

R303
470R SM

SK301
1
2
3
4

IDC4S

+5V

+5V

+

C306
470U EL 25V

D

C

D306
S1D

B

D307
S1D

+

UR-

C310
1000u 35V

R304
330R SM

Q301
2SC5248

D308

BAS16W SM

Q307
BC856B

-15V

-15V3

SP300
STAR POINT 4

0V_HF 0V_MODULE

0V_PSU

0V_SIG

0V_SIG

B

DRAWING TITLE

Integrated amplifier preamp - power supply

A

23425

Notes:

Circuit Diagram

01_E014 JBR 28/11/01 Fuses uprated to 2A 1.1

A

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

1 2 3 4

Filename

J:\Change_Control\ECO_AGENDA\01_E014 Fuse changes on A32 preamp\L937_1.1.ddb - Documents\Schematic\L937C3_1.0.SCH

01_1142 JBR 14/8/01 First production release 1.0

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

28-Nov-2001

DATE

Drawn by:

JBR

3 3Sheet of

DRAWING NO.

L937C3

ISSUE

87654321

A85 DISPLAY PCB

D

L865C2_2.0
L865C2_2.0.SCH

UDB

Update Box

MICRO

(Small)

UPDATE_SML

D

FD_1

FIDUCIAL

C

B

CHASSIS 1
(BY SK3)

CHASSIS 2
(BY SK1)

0V_D

0V_D

C39
1N0 SM

C45
1N0 SM

FD_2

FIDUCIAL

FIX7
FIXING HOLE

FIX1
FIXING HOLE

PCB1

PCB

L865PB_2

FIX2
FIXING HOLE

0V_D 0V_D 0V_D 0V_D 0V_D

FIX8
FIXING HOLE

C40
1N0 SM

C46
1N0 SM

FIX10
FIXING HOLE

C41
1N0 SM

FIX9
FIXING HOLE

C47
1N0 SM

0V_D0V_D

FIX4
FIXING HOLE

C42
1N0 SM

FIX3
FIXING HOLE

CHASSIS 3
(BY SK2)

FIX5
FIXING HOLE

C43
1N0 SM

FIX11
FIXING HOLE

C48
1N0 SM

0V_D0V_D

FIX6
FIXING HOLE

C49
1N0 SM

C44
1N0 SM

C

B

A

1 2 3 4 5 6 7 8

DRAWING TITLE

MARY AMP DISPLAY PCB

23425

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

Notes:

Filename

J:\Completed_Projects\A85 (Mary)\mary display\L865_2\l865_2.0 dbase.ddb - Documents\L865_2.0.PRJ

Circuit Diagram

ISSUE 1.1

EDD IR DUAL FOOTPRINT ADDED19/07/2001 2.0

00_1103 JBR SW1 TO SW10 CHANGED29 SEP 2000 1.1

ECO No. DESCRIPTION OF CHANGE

Date Printed

INITIALS

8-Jan-2002

DATE

Drawn by:

JBR

1 2Sheet of

DRAWING NO.

L865C1

ISSUE

A

8765432

1

+5V

R34
150R SM

LED11

LED RED/GRN 3MM

G

LEFTAUDIO

+5V

R55
10K SM

R51
100R SM

R32
10K SM

5

6WP7

SCL

SDA

VDD

A01A12A2

3

Q2
BC847B

+5V

8

10K SM

IND11

C8

100N SM

R1
10K SM

BUT1

C17

100N SM

PB0
SEL7
SEL6
SEL5
SEL4
SEL3
SEL2
SEL1
VPROG

TRANSMIT
RECEIVE

TONEID
SDATA

SLOAD
SCLK

SW6
A1509

0V_D

0V_D

R2
10K SMR310K SMR410K SM

SW12 SW11

BUT2

10U EL SM

C11

+

100K SM

100K SM

R41

R42

TACTSW SM

+5V

BUT3

R43
100K SM

R44
100K SM

0V_D

F1CLOCK

F2CLOCK

+5V

100

1

Vcc

2

PB0

3

PB1

4

PB2

5

PB3

6

PB4

7

PB5

8

PB6

9

PB7

10

Vpp/RESO

11

Vss

12

TxD0/P9.0

13

TxD1/P9.1

14

RxD0/P9.2

15

RxD1/P9.3

16

IRQ4/SCK0/P9.4

17

IRQ5/SCK1/P9.5

18

D0/P4.0

19

D1/P4.1

20

D2/P4.2

21

D3/P4.3

22

Vss

23

D4/P4.4

24

D5/P4.5

25

D6/P4.6

0V_D

C5

100N SM

D7/P4.726D8/P3.027D9/P3.128D10/P3.229D11/P3.330D12/P3.431D13/P3.532D14/P3.633D15/P3.734Vcc35A0/P1.036A1/P1.137A2/P1.238A3/P1.339A4/P1.440A5/P1.541A6/P1.642A7/P1.743Vss44A8/P2.045A9/P2.146A10/P2.247A11/P2.348A12/P2.449A13/P2.5

+5V

0V_D

IND10

IND8

BUT13

IND4

BUT11

0V_D

Z7A
LM393A SM

3
2

PHASEA

PHASEB

IND9

BUT14

SW8
A1509

BUT4

Z7B

5

6

LM393A SM

SEL8

91

92

Vss

PA093PA194PA295PA396PA497PA598PA699PA7

BUT12

1

SEL9

MUTE

89

90

P8.4/CS0

P8.3/IRQ3

H8/3048F

BUT10

IND7

R5
10K SMR610K SM

BUT5

7

+5V

R49
10K SM

TONE

ACPRESENT

IRIN

84

85

86

87

88

AVss

P8.0/IRQ0

P8.1/IRQ1

P8.2/IRQ2

P7.7/AN7/DA1

IND11

BUT16

IND6

BUT15

IND5

SW7
A1509

DCPROT

VIPROT

0V_D

81

82

83

P7.3/AN3

P7.4/AN4

P7.5/AN5

P7.6/AN6/DA0

IND2

BUT4

IND12

79

80

P7.1/AN1

P7.2/AN2

BUT5

TACTSW SM

SW13

BUT6

TRANSMIT

RECEIVE

R480R0 SM

+5V

76

77

78

Vref

P7.0/AN0

P6.6/LWR
P6.5/HWR

CLKOUT
P6.2/BACK
P6.1/BREQ

P6.0/WAIT

50

BUT3

BUT1

IND1

RECEIVE
VPROG

PB0

AVcc

MD2
MD1
MD0

P6.4/RD
P6.3/AS

XTAL

EXTAL

NM1

STBY

P5.3/A19
P5.2/A18
P5.1/A17
P5.0/A16
P2.7/A15
P2.6/A14

H8/3048F

C3

100N SM

Vcc

Vss

RES

Vss

0V_D

CHASSIS 1

R7
10K SMR810K SM

TACTSW SM

SW14

BUT7

R50
10K SM

+5V

+

C14

10U EL SM

0V_D

Z1

+5V

75
74
73
72
71
70
69
68
67
66
65
64
63
62
61

C4

60

100N SM

59
58
57
56
55
54
53
52
51

0V_D

C50B 100PX4 SM

C50D 100PX4 SM

C51B 100PX4 SM

C51D 100PX4 SM

C52B 100PX4 SM

C52D 100PX4 SM

C53B 100PX4 SM

C53D 100PX4 SM

C54B 100PX4 SM

C54D 100PX4 SM

C55B 100PX4 SM

C55D 100PX4 SM

TACTSW SM

SW15

BUT8

SAMHOLD

+5V

R37
10K SM

100N SM

Programming adaptor

SK4

HEADER 7X2HORIZ

R26

10K SM

STANDBY
SP1ON
SP2ON
THERMPROT

RESPIN

SAMTX2
SAMRX2
BUT17

BUT9
BUT8
BUT7
BUT6
BUT2
IND3

0V_D

C50A 100PX4 SM

C50C 100PX4 SM

C51A 100PX4 SM

C51C 100PX4 SM

C52A 100PX4 SM

C52C 100PX4 SM

C53A 100PX4 SM

C53C 100PX4 SM

C54A 100PX4 SM

C54C 100PX4 SM

C55A 100PX4 SM

C55C 100PX4 SM

2V7

Z6A

1

LM393A SM

C9

12
34
56
78

910
1112
1314

D2
BAS16W SM

R68
10K SM

A1506

SW17

BUT17

Z6B

5

6

LM393A SM

2

3

+5V

R9
10K SM

TACTSW SM

SW16

7

0V5

0V_D

+5V

C7

100N SM

0V_D

FFC 22W 1MM HOR

0V_D

BUT9

+5V

0V_D

TRANSMIT

RESPIN

SAMHOLD

Z2

3

Vcc

2

Res

4

Gnd

1

Gnd

DS1233 SM

To preamp board
SK3

22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

R10
10K SM

SW1
A1509

BUT10

R40
4K7 SM

R38
1K2 SM

X1
16MHZ SM

SEL1
SEL2
SEL3
SEL4
SEL5
SEL6
SEL7
SEL8
SEL9

LEFTAUDIO
MUTE

TONE

Q_117

TONEID

Q_118

SDATA

Q_119

SLOAD

Q_120

SCLK

+5V

SAMRX2

C1

18P SM

C2

18P SM

R35
10K SM

0V_D

DS1233

R72

R11
10K SM

BUT11

SAMTX2

R71

2R2 SM

SW4
A1509

+5V

R45
10K SM

R70

2R2 SM

R36
10K SM

2V7

Z8B

7

LM393A SM

C12

100N SM

R69

2R2 SM

0V_D

R12
10K SM

SW2
A1509

BUT12

2R2 SM

0V52V7

Z8A

3

2

LM393A SM

R13
10K SM

SW5
A1509

BUT13

R39
2K2 SM

0V_D

1

0V5

6

5

+5V

+

C33

220U EL

0V_D

(FIT CLOSE TO SK1)

R14
10K SM

SW3
A1509

BUT14

R15
10K SM

SW10
A1509

BUT15

+5V

R47
4K7 SM

SAMBUSYSAMDATA

R46
1K2 SM

0V_D

SBX1610-52/PIC-26043TM2

Q_54

RX1

+5V

2

O/P
O/P

Case

Case

0V_D

+5V

SK2

1

Q_19
Q_20

2
3
4
5

AMPCT5

0V_D

D5
BAS16W SM

Z12
7815

I

Vin

O

Vout

GND

G

C27

100N SM

D4

SAMDATA
SAMBUSY

+

C34

220U EL

+SUP VFD_VDD2

+

C26
10U EL SM

22V 350MW SM

0V_D

DRAWING TITLE

MARY AMP DISPLAY PCB

23425

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

R16
10K SM

SW9
A1509

BUT16

R17
1K5 SM

LED7

IND1

LED GREEN3.1MM

R18
1K5 SM

LED8

IND2

LED GREEN3.1MM

LED GREEN3.1MM

R19
1K5 SM

LED6

IND3

LED GREEN3.1MM

R20
1K5 SM

IND4

LED3

IND5

LED GREEN3.1MM

+5V

R74
10K SM

IROUT

R76
10K SM

R75
10K SM

R73
10K SM

Q3
BC847B

IRIN

Q4
BC847B

IRIN

3

R27

10K SM

0V_D

PHASEA
PHASEB

+5V

0V_D

R56
10K SM

R57
10K SM

F1CLOCK

F2CLOCK

+5V

GND

GND +5V

1

SW18
ALPS_ENCODER

4

C6

100N SM

5

+5V

R2810K SM

1

A

2

B

3

C

0V_D

+5V

C60B 100PX4 SM

C60D 100PX4 SM

C61B 100PX4 SM

C61D 100PX4 SM

C62B 100PX4 SM

C62D 100PX4 SM

C63B 100PX4 SM

C63C 100PX4 SM

C63D 100PX4 SM

C60A 100PX4 SM

C60C 100PX4 SM

C61A 100PX4 SM

C61C 100PX4 SM

C62A 100PX4 SM

C62C 100PX4 SM

C63A 100PX4 SM

To power amp / PSU

SK1

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

FFC 14W 2.54MM HOR

0V_D

+SUP

Q_121

STANDBY
SP1ON
SP2ON
THERMPROT
VIPROT
DCPROT
ACPRESENT

IRIN

CHASSIS 2

+5V

+

C28

10U EL SM

84

Z6C

LM393A SM

C10

100N SM

84

Z7C

LM393A SM

C15

100N SM

LM393A SM

0V_D

Notes:

Filename

J:\Completed_Projects\A85 (Mary)\mary display\L865_2\l865_2.0 dbase.ddb - Documents\L865C2_2.0.SCH

Circuit Diagram

ISSUE 1.1

EDD IR DUAL FOOTPRINT ADDED19/07/2001 2.0

00_1103 JBR 29 SEP 2000 SW1 TO SW10 CHANGED

ECO No. DESCRIPTION OF CHANGE

INITIALS

Date Printed

8-Jan-2002

R21
1K5 SM

LED10

R22
1K5 SM

LED9

IND6

LED GREEN3.1MM

LED GREEN3.1MM

SP1

DOUBLE SIDED
STICKY PAD

10 X 15MM
STICKY PAD DS 10X15MM
SP2

DOUBLE SIDED

STICKY PAD

10 X 15MM
STICKY PAD DS 10X15MM

DC1

DISPLAY CRADLE

E916PM

DISPLAY CRADLE E916PM
DC2

DISPLAY CRADLE

E916PM

DISPLAY CRADLE E916PM

R52
100R SM

R53
100R SM

Q_122
Q_123
Q_124
Q_125
Q_126
Q_127
Q_128

Q_129

84

DATE

C16

100N SM

Drawn by:

JBR

Z8C

R25
1K5 SM

IND7

LED1

IND8

LED GREEN3.1MM

DISP1

R24
1K5 SM

LED4

LED GREEN3.1MM

F1 to F2 = 4Vac 150mA
VDD2 = 40Vdc 20mA

Graphics Display

F11F12F13SIN4VDD15SOUT6LAT7BLK8CLK9VSS10VSS11VDD212F215F216F2

+5V

B1013

DISPDAT

DISPCLK

DISPLAT

DISPBLK

Z11A
AD8532 SM

3

2

5

6

Z11B
AD8532 SM

R58

1

0R0 SM

R59

7

0R0 SM

84

Z11C

AD8532 SM

2 2Sheet of

R23
1K5 SM

LED2

IND9

LED GREEN3.1MM

0V_D

C25

100N SM

DRAWING NO.

R31
1K5 SM

LED5

IND10

17

VFD_VDD2

+

C29
100U EL SM

L865C2

D

C

B

A

ISSUE

Q1
BC847B

R29
10K SM R30

D

R33

330R SM

IND12

R

0V_D

C

D3
BAS16W SM

DISPDAT

B

DISPCLK
DISPBLK

DISPLAT

C31

10P SM

R64
100R SM

R65
100R SM
R67

100R SM

C32

10P SM

R66
100R SM

0V_D

Z5
24C02 SM

4

VSS

A

0V_D

1 2 3 4 5 6 7 8

87654321

D

C

LEFT CHANNEL

C1
100N CD

SK1
PHONO2HG

EMC

1

0V_SIG

0V_SIG

Q_1

Q_2

L870C2_2.0.SCH

LEFT IN LEFT OUT

RIGHT CHANNEL
L870C3_2.0.SCH

RIGHT IN RIGHT OUT

Q_3

Q_4

+15V

Q_5

1
2
3
4
5
6
7

Q_6

8

Q_7 Q_8

-15V
0V_HF0V_SIG

SK2

AMPCT8

D

C

B

A

PCB1

PCB

L870PB_2

1 2 3 4 5 6 7 8

EL1

Update Box

UPDATE_BOX

DRAWING TITLE

A85 PHONO STAGE - TOP LEVEL

23425

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

Notes:

Filename

G:\DATA\ECO\ECO AGENDA\01_1070 l870 A85 PHONO ISSUE2\L870_2.0.ddb - L870c1_2.0.PRJ

Circuit Diagram

01_1070 JAG 17/4/01 updated pcb and scm 2

00_1051 JAG 22/3/01 PRODUCTION ISSUE 1

ECO No. DESCRIPTION OF CHANGE

INITIALS

Date Printed

DATE

Drawn by:

JBR23-Apr-2001

1 3Sheet of

DRAWING NO.

L870C1

B

A

ISSUE

87654321

+

C102
100U SILMIC

R111
56K MF

R124

5K6 MF

R123
10R MF

C119

100P PP

C101

1N0 PP

C110

4N7 PP
C120

1N0 PP

C112

10N PP AX
C111

10N PP AX

R112
100K MF

C105
100N PE

Q_101

R113
100K MF

R114
100K MF

R115
15K MF

TL071CD

R101
100R MF

TR102
BC556B

TR108
BC546B

R116
2M2 MF

74

IC100

3

6

C118

2

10U NP

R117
2M2 MF

TR104
BC556B

D

TR100
BC556B

+

C100
22U EL

R109
12K MF

R110
12K MF

LEFT IN

C

R104
100R MF

SW100B
4PCO

5

6

C108
470P PPW

4

R108
47K MF

C109

100P PPW

TR106
2SA1085

R100
330R MF

TR101
BC556B

TR107
2SA1085

C115
1N3 PP

SW100D
4PCO

R105
100R MF

101112

Q_102

R102
100R MF

TR103
BC556B

D100
1N4148

C104
100N PE

0V_SIG0V_HF

C106
100N PE

+15V

TR109
BC546B

R118
22R MF

R119
22R MF

TR105
BC556B

C113

1U0 PE

0V_SIG

R122
39K MF

D

C

LEFT OUT

0V_SIG0V_SIG

B

TR110
BC546B

D101
1N4148

R120
22R MF

A

1 2 3 4 5 6 7 8

TR111
BC546B

D102
1N4148

R121
22R MF

DRAWING TITLE

A85 PHONO STAGE - LEFT CHANNEL

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

C116

470P PPW

23425

TR112
BC546B

+

C103
100U SILMIC

Notes:

Filename

G:\DATA\ECO\ECO AGENDA\01_1070 l870 A85 PHONO ISSUE2\L870_2.0.ddb - L870C2_2.0.SCH

TR113
BC546B

TR114
BC546B

R106
100R MF

0V_SIG0V_HF

Circuit Diagram

C117
470P PPW

C107
100N PE

Q_103

-15V

01_1070 JAG 17/4/01 updated pcb and scm 2

00_1051 JAG 22/3/01 PRODUCTION ISSUE 1

ECO No. DESCRIPTION OF CHANGE

INITIALS

Date Printed

DATE

Drawn by:

JBR23-Apr-2001

2 3Sheet of

DRAWING NO.

L870C2

B

A

ISSUE

87654321

+

C202
100U SILMIC

R211
56K MF

R224

5K6 MF

9

R223
10R MF

C219

100P PP
C201

1N0 PP
C210

4N7 PP

C220

1N0 PP

C212

10N PP AX
C211

10N PP AX

R212
100K MF

C205
100N PE

Q_201

R213
100K MF

R214
100K MF

R215
15K MF

TL071CD

R201
100R MF

TR202
BC556B

TR208
BC546B

R216
2M2 MF

74

IC200

6

3
2

C218
10U NP

R217
2M2 MF

TR204
BC556B

D

TR200
BC556B

+

C200
22U EL

R209
12K MF

R210
12K MF

RIGHT IN

C

R204
100R MF

SW100A
4PCO

2

3

C208

470P PPW

1

R208
47K MF

C209

100P PPW

TR206
2SA1085

R200
330R MF

TR201
BC556B

TR207
2SA1085

R205
100R MF

C215
1N3 PP

7

SW100C
4PCO

8

Q_202

R202
100R MF

TR203
BC556B

D200
1N4148

C204
100N PE

0V_SIG0V_HF

C206
100N PE

+15V

TR209
BC546B

R218
22R MF

R219
22R MF

TR205
BC556B

C213

1U0 PE

0V_SIG

R222
39K MF

D

C

RIGHT OUT

C217

0V_SIG0V_SIG

B

TR210
BC546B

D201
1N4148

R220
22R MF

A

TR211
BC546B

D202
1N4148

R221
22R MF

DRAWING TITLE

A85 PHONO STAGE - RIGHT CHANNEL

23425

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

1 2 3 4 5 6 7 8

Cambridge CB5 9PB

470P PPW

TR212
BC546B

+

C203
100U SILMIC

Notes:

Filename

G:\DATA\ECO\ECO AGENDA\01_1070 l870 A85 PHONO ISSUE2\L870_2.0.ddb - L870C3_2.0.SCH

TR213
BC546B

TR214
BC546B

R206
100R MF

0V_SIG0V_HF

Circuit Diagram

470P PPWC216

C207
100N PE

Q_203

-15V

01_1070 JAG 17/4/01 updated pcb and scm 2

00_1051 JAG 22/3/01 PRODUCTION ISSUE 1

ECO No. DESCRIPTION OF CHANGE

INITIALS

Date Printed

DATE

Drawn by:

JBR23-Apr-2001

3 3Sheet of

DRAWING NO.

L870C3

B

A

ISSUE

87654321

+5V_D

1
2
3
4
5

SPKR1 ON

6

SPKR2 ON

7

THERMPROT

8

VIPROT1

9

DCPROT1
10
11
12
13
14

TP102

TP103

+5V_D

TP104
TP105
TP106
TP107
TP108

0V_D

0V_D

0V_SIG

TP116

0V_LS 0V_HF

SP100

STAR POINT 8

0V_PSU

R107
2R2 SM

D

0V_D

SK100

D

+5V_D

14

IC100G
74HC14D

7

C100
100N SM

+

C102
100U EL

C101
100N SM

R100
1K0 SM

TH100
PTH90DEG

IC100E

74HC14D
IC100F

1011

1213

FFC 14W 2.54MM VER
PIN 1 TO THE LEFT AS YOU LOOK FROM THE FRONT

THERMPROT

0V_D

C

+49V

D100
1N4003F

TR100
BD179

B

RLY101B
RLY SPST SPKR

R103
220R SM

0V_D

TR101
BD179

RLY100B
RLY SPST SPKR

R105
100R SM

R106
100R SM

R104
220R SM

74HC14D

D101
1N4003F

SPKR1 ON

SPKR2 ON

0V_SIG

EMC

C105
1N0 SM

TP110

SK101

F

N

PHONO2G

1

TP109

+49V

-49V

0V_HF

0V_LS

L911C2_1
L911C2_1.1.SCH

INPUT
0V_SIG

0V_HF
VPOS
VNEG

VIPROT
DCPROT
OUTPUT0V_LS

R101
1K0 SM

R102
1K0 SM

TP111

1 2

C103
10N SM

5 6

C104
10N SM

0V_D
RLY101A

RLY SPST SPKR

TP112 TP113

IC100A

74HC14D
IC100C

74HC14D

3 4

SK102A

Top+

Top-

0V_LS

IC100B

74HC14D
IC100D

74HC14D

RLY100A

RLY SPST SPKR

C

VIPROT1

89

DCPROT1

SK102B

Bot+

Bot-

B

+49V

TP100

1

BR100

TP114

1

2

SK103

3

A

MOLEXPWR4

4

TP115

1 2 3 4 5 6 7 8

3

BRGBU8D

+

2

~

~

-

4

-49V

+

C106
10,000u 63V

+

C107
10,000u 63V

C108
100N PC

0V_PSU

C109
100N PC

POWER AMP SUPPLY

TP101

PB

PCB

L911PB_1

DRAWING TITLE

AP85 third channel - top level

23425

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

Notes:

Filename

J:\ECO_wip\01_1101 A85 RANGE PCB FUSES AND DC OFFSET\L911_1.1.DDB - Documents\L911C1_1.1.PRJ

Circuit Diagram

01_1101 JR 4/6/01 DC OFFSET CHANGES 1.1
01_1018

ECO No. DESCRIPTION OF CHANGE

Date Printed

JR 30/1/01 PRODUCTION ISSUE 1.0

INITIALS

4-Jun-2001

DATE

Drawn by:

J Reckless

1 2Sheet of

DRAWING NO.

L911C1

ISSUE

A

87654321

D

R315

TR300
FMMT597

C310
100N SM

3
2

C314
100N SM

TR314
FMMT497

100R SM

PNP CURRENT MIRROR

TR311
FMMT497

R328

4K7 SM

TP302

84

0V_SIG

IC300A

TL072CD

TP303

TR303
FMMT597

NPN CURRENT MIRROR

R317
100R SM

R300
10K SM

+

C300

DZ300

100U EL

15V 350MW SM

0V_HF

0V_SIG

C

INPUT

0V_SIG

0V_HF

B

INPUT FILTER V TO I AMP

R324
1K0 SM

DZ302
4V7 350MW SM

DZ303
4V7 350MW SM

0V_SIG

+

C301
100U EL

0V_HF

C309
100N SM

DZ301
15V 350MW SM

R309
10K SM

R327
22K SM

C316
470P PPW

0V_SIG

7

1

C317

470N PE

IC300B

TL072CD

R322
22R SM

R337
22R SM

0V_SIG

R319
100R SM

R333
3K3 SM

DC SERVO

0V_SIG

TP304

R335
3K3 SM

R320
100R SM

R330

6

1M0 SM

5

R331
1K5 SM

R332
1K8 SM

C307

100P SM

TR322

FMMT497

C311
100N PC

C308

100P SM

R316
100R SM

TR301
FMMT597

TR321
FMMT597

R355
6K8 SM

R354
1K0 SM

TR320
FMMT497

TR315
FMMT497

R318
100R SM

TR309
FMMT497

R338
150R SM

BOOTSTRAP

+

C302
100U EL 100V

R352
470R 2W

470R 2W
R353

+

C318
10U EL

+

C306
100U EL 100V

BOOTSTRAP

R339
150R SM

TR306
FMMT597

PRE DRIVER

TR310
FMMT497

R321
22R SM

C312
10N SM

R323
22R SM

TR307
FMMT597

PRE DRIVER

ADJ BIAS

RV300
100R PSET

D300
BAS16W SM

OUTPUT STAGE

TR318
SAP15N

TP305

R325
1K0 SM

R340
100K SM

R326
1K0 SM

TP306

TR319
SAP15P

OUTPUT STAGE

PL300
1
2

MEASURE

BIAS

R341
330R SM

R342
330R SM

R343
100R SM

R344
100R SM

V-I PROTECTION

R334
22K SM

R347
100R SM

R345
0R0 SM

+

C303
100U EL

+

C304
100U EL

R346
0R0 SM

R348
100R SM

R336
22K SM

V-I PROTECTION

D301
BAS16W SM

TR312
FMMT497

TR304
FMMT597

D302
BAS16W SM

D303
1N4003F

DC OFFSET SIGNAL
TO MICRO

D304
1N4003F

0V_HF

R349
100R SM

DCPROT

TR305
FMMT597

TP308

DZ306
4V7 350MW SM

R302
10K SM

R310
4K7 SM

C315
100N SM

R301
10K SM

R329
4K7 SM

TR313
FMMT497

R303
10K SM

R304
10K SM

R311
10K SM

R312
10K SM

0V_HF

TR316
FMMT497

TR308
FMMT597

TR302
FMMT597

R305
10K SM

R306
10K SM

DC OFFSET
DETECTION

R307
10K SM

R313
10K SM

TR317
FMMT497

VI PROTECT
SIGNAL TO MICRO

TP307

R308
22K SM

C320
100U NP

DZ305
4V7 350MW SM

+

C305
10U EL

VIPROT

R351
5R6 2W CF

L300

2U2H LAC SMALL

R350
5R6 2W CF

ZOBEL NETWORK

C319
100N PE

0V_HF 0V_LS

R314
10K SM

C313

100N SM

VPOS

OUTPUT

0V_LS

0V_HF

VNEG

D

C

B

A

A

DRAWING TITLE

AP85 third channel - output stage

23425

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

1 2 3 4 5 6 7 8

Notes:

Filename

L911C2_1.1.SCH

Circuit Diagram

01_1101 JR 4/6/01 DC OFFSET CHANGES 1.1

JR 30/1/01 PRODUCTION ISSUE 1.001_1018

INITIALS

DATE

Drawn by:

J Reckless4-Jun-2001

2 2Sheet of

DRAWING NO.

L911C2

ECO No. DESCRIPTION OF CHANGE

Date Printed

ISSUE

+5V_D

87654321

R1

SK1

+5V_D

14
13

SK2

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

0V_D

+5V_D

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

R9
10K MF

R10
10K MF

STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT 1
VIPROT 1
DCPROT 1
AC PRESENT
TRIGGER
REMOTE

SPKR1 ON
SPKR2 ON
THERMPROT 2
VIPROT 2
DCPROT 2

R11
10K MF

SP2 SW
SP1 SW
SP1 LED
SPKR2 ON
SPKR1 ON
STANDBY
PWR SW
REMOTE
TRIGGER
AC PRESENT

THERMPROT

Z1

1

PB5

2

PB4

3

PA3

4

PA2

5

PA1

6

PA0

7

PB3

8

PB2

9

PB1

10

PB0

11

VSS

12

(TMR)/INT

13

PC0

14

PC1

HT48R30 28-DIP-B-0

PB6
PB7
PA4
PA5
PA6

PA7
OSC2
OSC1

VDD
RES

PC5
PC4
PC3
PC2

28
27
26
25
24
23
22
21
20
19
18
17
16
15

DCPROT
VIPROT
SP2 LED
PWR GRN
PWR RED

C1
100N CD

D1

1N4148

+5V_D

0V_D

R16
100K MF

+

C5
10U EL

X1
CST4.00

D

C

10K MF

R2
10K MF

SP2 LED

Q1
BC556BR310K MF

R4
10K MF

R12
560R MF

LED1 LED2

SP1 LED

SW1
A1503

10K MF
Q2
BC556B

10K MF

R13
560R MF

R5

R6

SW2
A1503

330R MF

PWR RED

Q4
BC556B

R14

R

0V_D

SW3
A1506

Q3
BC556B

R15
180R MF

G

LED3

R7
10K MF

R8
10K MF

PWR GRN

D

C

0V_D

0V_D

Z2A

1
2

4
5

74HC32
Z2B

3

6

THERMPROT

VIPROT

+5V_D

C14

100U EL

+5V_D

THERMPROT 1

THERMPROT 2

SPKR1 ON

+

R19
470R MF

Q5
BC546B

VIPROT 1

VIPROT 2

74HC32

D2
1N4148

R17
10K MF

B

R20

0V_D

Q6
BC546B

SPKR2 ON

DCPROT 1

DCPROT 2

10

9

Z2C

74HC32

8

DCPROT

C2
100N CD

C3
100N CD

0V_D

SP2 SW

+

C4
100N CD

C6
100U EL

BY SK1 BY SK2 BY Z1

+

C7
100U EL

SP1 SW

+

C8
100U EL

PWR SW

GND

7

14

VDD

Z2E
74HC32

12
13

Z2D

74HC32

11

B

470R MF

R18
10K MF

R21

0V_D

Q7
BC546B

STANDBY

FIX1
FIXING HOLE

470R MF

TL1

0V_D

A

EL1

CLOGO

Layout by

Cliff

DD1

PCB MATERIAL

FR4, 1 OZ Cu

FR4_1OZ

0V_D

PS

Photo Strip

PHOTO_STRIP

PCB

L910PB_1

PCB

DD2

Drilling

Detail

DRILL_DWG

EL2

Update Box

UPDATE_BOX

TOOLING

DD3

A3 Vertical

Paper Marker

DD_A3V

TL2
TOOLING

DRAWING TITLE

P85 microcontroller and switch

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

C9
100N CD

FIX2
FIXING HOLE

C10
100N CD

FIX3
FIXING HOLE

C11
100N CD

FIX4
FIXING HOLE

C12
100N CD

FIX5
FIXING HOLE

0V_D

Notes:

Filename

J:\ECO_wip\00_1099 L910PB_1.0\L910AY_1\L910AY_1.ddb - L910CT_1.sch

Circuit Diagram

C13
100N CD

00_1099

ECO No. DESCRIPTION OF CHANGE

Date Printed

CL 28/09/00 PRODUCTION RELEASE 1.0

INITIALS

29-Sep-2000

DATE

Drawn by:

CG

1 1Sheet of

DRAWING NO.

A

ISSUE

L910CT

1 2 3 4 5 6 7 8