Arcam FMJ P-1 Schematic

ITEM1 1 Blank PCB P35/P1 FMJ Amp Microcontroller BoardL929PB

Downloaded from http://receiverfaq.ru/

+5V_D

CON1

MOLEX
5229-NAPB

CON2

MOLEX
5229-NAPB

D2
1N4148

DO-35

C8
100UF

25V
YK

R1
10K
0W25
MF

R2
10K
0W25
MF

SP2 LED

SW1
SKHVPB000A

2

SP2 SW

IC2E
74HC32N
DIP-14

14

VCC

7

GND

TR1
BC556B

TO-92

R12
560R

0W25
MF

1

0V_D

LED1
5mm

GRN
LED 5mm

+5V_D

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

R22

R23

R24

10K

10K
0W25
MF

R10
10K

0W25
MF

10K
0W25
MF

R11
10K

0W25
MF

0V_D

0V_D

0V_D

0W25
MF

0V_D

+5V_D

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

R9
10K

0W25
MF

0V_D

+5V_D

C14
100UF

R19

25V
YK

470R
0W25
MF

R20

470R
0W25
MF

R21

470R
0W25
MF

0V_D

R17
10K

0W25
MF

R18
10K

0W25
MF

R25
10K

0W25
MF

R26
10K

0W25
MF

TR5
BC546B

TO-92

TR6
BC546B

TO-92

TR7
BC546B

TO-92

SPARE1
STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT 1
VIPROT 1
DCPROT 1
AC PRESENT
TRIGGER
REMOTE

SPARE2
STANDBY
SPKR1 ON
SPKR2 ON
THERMPROT 2
VIPROT 2
DCPROT 2
AC PRESENT
TRIGGER
REMOTE

SPKR1 ON

SPKR2 ON

STANDBY

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

THERMPROT

LK1
0R0

0W25
MF

0V_D

LINK LK1 IS USED
TO CONFIGURE PCB
FOR USE IN P35 OR P1

FOR P35 - LEAVE LK1 INTACT
FOR P1 - CUT LINK

THERMPROT 1
THERMPROT 2

VIPROT 1
VIPROT 2

DCPROT 1
DCPROT 2

SPARE1
SPARE2

0V_D

IC2A
1

2
74HC32N

DIP-14
IC2B

4
5
74HC32N

DIP-14
IC2C

9

10

74HC32N
DIP-14

IC2D

12
13

74HC32N
DIP-14

LK2
0R0

0W25
MF

0V_D

3

6

8

11

IC1
HT48R30A-1
L019SW
DIP-28

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

THERMPROT

VIPROT

DCPROT

SPARE

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
SPARE

+5V_D

C2
100N

50V
X7R

0V_D

DRAWING TITLE

C1
100N

50V
X7R

D1
1N4148

DO-35

C3
100N

50V
X7R

+5V_D

R16
100K
0W25
MF

C5
10UF

50V
YK

C4
100N

50V
X7R

X1

4.00MHz
SIL-3

3

C6
100UF

25V
YK

1

2

C7
100UF

25V
YK

R3
10K
0W25
MF

R4
10K
0W25
MF

SP1 LED

SW2
SKHVPB000A

1

2

SP1 SW

FIX1

Dia 3.5mm

1

0V_D

TR2
BC556B

TO-92

R13
560R

0W25
MF

LED2
5mm

GRN
LED 5mm

FIX2

Dia 3.5mm
C9
100N

50V
X7R

R5
10K
0W25
MF

R6
10K
0W25
MF

PWR RED

SW3
SKHVPB000A

1

2

PWR SW

FIX3

1

Dia 3.5mm
C10
100N

50V
X7R

TR4
BC556B

TO-92

3mm
BICOL
LED 3mm

RED GRN

FIX4

1

Dia 3.5mm
C11
100N

50V
X7R

R14
330R

0W25
MF

0V_D

1

R15
180R

0W25
MF

TR3
BC556B

TO-92

LED3

FIX5

Dia 3.5mm
C12
100N

50V
X7R

R7
10K
0W25
MF

R8
10K
0W25
MF

PWR GRN

1

C13
100N

50V
X7R

P35 / P1 Switch PCB

TOOL1 TOOL2

ARCAM

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

Filename:
Notes:

Contact Engineer:

L929CT_1.0.sch

KAL 8/05/03 Redrawn, LED1, 2 swapped, Connectors rewired, LK1, 2 added 1.003_E125
WAF 2/01/02 HOLTEK, Z1 UPDATED B.103_E001
JR 1/11/01 LEDS TO 5MM AND MAINS SWITCH B.0

ECO No. DESCRIPTION OF CHANGE

Contact Tel: [phone]Kevin Lamb

INITIALS

Printed:

DATE

13-May-2003

1 1Sheet of

A3

DRAWING NO.

L929CT

ISSUE

QTY DESCRIPTIONPART No. NOTESITEM

ITEM1 1 Clip For SW Profile HeatsinkF006
ITEM2 1 Fuseholder Cover For 20mm FuseholderF022
ITEM3 1 Fuseholder Cover For 20mm FuseholderF022
ITEM4 1 Fuseholder Cover For 20mm FuseholderF022
ITEM5 1 Fuseholder Cover For 20mm FuseholderF022
ITEM6 1 Fuseholder Cover For 20mm FuseholderF022
ITEM7 1 Fuseholder Cover For 20mm FuseholderF022 Cover For FHLDR6
ITEM8 1 Blank PCB P1 Amplifier Main BoardL962PB
ITEM9 2 Pad Damping 15x6x3MM SorbothaneE802AP See Assy Drawing for location

ITEM11 1 Earth Lead Assy 75MM8M101

Clip for REG1
Cover For FHLDR1
Cover For FHLDR2
Cover For FHLDR3
Cover For FHLDR4
Cover For FHLDR5

See Assy Drawing for locationITEM10 3 Pad Damping 7.5x6x3 SorbothaneE826AP

FD1
FD2
FD3
FD4

L962CT3_2
L962CT3_2.0_Power Amplifier.sch

VIPROT

DC

THERM

SHUTDOWN*

FIX1

CHASSIS1

Dia 3.2mm
FIX3

Dia 3.5mm

1

FIX2

Dia 3.2mm
FIX4

Dia 3.5mm

1

CHASSIS1

L962CT2_2
L962CT2_2.0_PSU and Control.Sch

VIPROT
DC
THERM
SHUTDOWN*

FIX5

Dia 3.5mm
FIX7

Dia 3.5mm

1

1

CHASSIS2

FIX6

Dia 3.5mm
FIX8

Dia 3.5mm

FIX9

Dia 3.5mm
FIX11

Dia 3.5mm

FIX10

Dia 3.5mm
FIX12

Dia 3.5mm

FIX13

Dia 3.5mm
FIX14

Dia 3.5mm

TOOL1
TOOL2
TOOL3
TOOL4

DRAWING TITLE

P1 Amplifier Main PCB

23425

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

Filename:
Notes:

Contact Engineer:

L962CT1_2.0.Sch

03_E249 KAL 2.022/08/03 Stability mods
03_E203 KAL 1.016/07/03 Production Release, VI Limiting changes
03_E184 KAL B.123/06/03 Changed sorbothane part numbers, corrected R179-182, R185-187
03_E111 KAL B.011/04/03 Corrected CON4, Redesigned protection cct and voicing mods
03_E055 KAL Minor Change to re-label gain switch positions A.118/02/03

ECO No. DESCRIPTION OF CHANGE

Contact Tel: [phone]Kevin Lamb

INITIALS

Printed:

DATE

22-Aug-2003

1 1Sheet of

DRAWING NO.

L962CT1

ISSUE

SH1

EARTH

EMC Shield

SKT1
BULGIN
PX0580

NEUTRAL

115V 230V

R2
1M5
0W5
VR37

LIVE

2A22B

1A11B

SW1
18-000-0019

FHLDR1
20mm HLDR

FS1 T6.3AS506
FS2 T6.3AS506

FHLDR2
20mm HLDR

RLY1B

Takamisawa

F1CA005V

C1

GREEN

3N3
250V
CER

1

C2
3N3
250V
CER

EARTH

C5
220N
275V
PP X2

N
E
L

CON1

WAGO
256

MAINS WIRING AND AUXILIARY SUPPLY

RLY1A

F1CA005V

Takamisawa

TX1
Open Frame

1 5

C3
3N3

250V
CER

C4
3N3
250V

CER

9V

9V

115V

2
3 7

115V

4

D3
BAS16
SOT-323

HS1A
SW50-2

FS3

6

T315mA
S504

FHLDR3

20mm HLDR

8

CON3

4
5
6

MOLEX
44472

1
2
3

C11
100N
50V
0805

TX WIRE COLOURS

1 BLUE
3 BROWN
4 BLACK
6 WHITE

DBR1
W02G

C21
3300UF
25V
YK

8.8C/W

+5

REG2
L4940V5
TO-220

C12
100N
50V
0805

VP70V VP67V

C13
100N
50V
0805

+5V(D)

DGND

C33
1000UF
10V
YK

D4

BAS16
SOT-323

P3

MAINS PRESENT DETECT

R15
10K
0W25
1206

D6
BAS16
SOT-323

TR10
BC849B
SOT-23

R16
2K2
0W25
1206

C36
100UF

25V
YK

P4

+5V(D)

DGND

R17
4K7
0W25
1206

TR11
MMUN2211LT1
SOT-23

SKT2
HOSIDEN
HSJ

GND1

GND2

SKT3
HOSIDEN
HSJ

GND1

GND2

NC1

NC2

EMCGND

NC1

NC2

D1 BAS16

SOT-323

D2 BAS16

SOT-323

TR1
BD179
TO-126

TR2
FMMT497
SOT-23

R1
10R
0W25
1206

C9
100N
50V
0805

CHASSIS1

C6
100P
100V
0805

R3
3K3
0W25
1206

C10
100N
50V
0805

+12V(D)

CON2

VN70VAC2 VN70VAC1
VP58VAC1
VP58VAC2
VN58VAC1
VN58VAC2

P1

REG1
L7812CV
TO-220

C7
100N

50V
0805

5
4
3
2
1

MOLEX
44472

+12

+18V(D)

DGND

10
9
8
7
6

C8
100N

50V
0805

VP70VAC2
VP70VAC1
VP18VAC2
VP18VAC1

TX WIRE COLOURS

1 GREEN
2 YELLOW
3 ORANGE
4 RED
5 WHITE
6 GREY
7 VIOLET
8 BLACK
9 BROWN

10 BLUE

L1

70R@100MHz

R4
2K2

0W25
1206

DZ1
BZX84C
4V7
SOT-23

DGND

R18
10K
0W25
1206

VP70VAC1

VP70VAC2

VP58VAC1

VP58VAC2

VN58VAC1

VN58VAC2

VN70VAC1

VN70VAC2

VP18VAC2

VP18VAC1

FS4
T315mA
S504

FHLDR4
20mm HLDR

FS5
T315mA
S504

FHLDR5

20mm HLDR

FS6
T315mA
S504

FHLDR6

20mm HLDR

AGND_SIG
AGND_PSU1
AGND_PSU3

C15
100N

100V
MKS2

C16
100N

100V
MKS2

C14
100N

100V
MKS2

DBR5
GBU8D

DBR6
GBU8D

C17
100N

100V
MKS2

DBR4
W02G

C18
100N

100V
MKS2

AGND_PSU2

AGND_RC

SP1

DBR2
W02G

DBR3
W02G

AGND_C1
AGND_LS
AGND_C2

C24
10,000UF

71V
AM

C26
10,000UF

71V
AM

+18V(D)

DGND

AGND_C1

AGND_C2

C32
1000UF
35V
YK

P2

CHASSIS2

C25
10,000UF

71V
AM

C27
10,000UF

71V
AM

100R 0W25

VP58V

VN58V

R12

1206

R19
10K

1W
CF

AGND_PSU3

R20
10K

1W
CF

DGND

C22
1000UF

100V
YK

AGND_PSU2

C23
1000UF

100V
YK

C28
47UF

100V
YK

C29
47UF

100V
YK

DRAWING TITLE

23425

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

TR3

TR4
FMMT497
SOT-23

TR5
FMMT597
SOT-23

TR6
2SC5171
TO-220

C19
100N

100V
MKS2

C20
100N

100V
MKS2

D5

BAS16
SOT-323

2SA1930
TO-220

R13
68K

0W25
1206

R14
68K

0W25
1206

R5
2K2

0W25
1206

R6
2K2

0W25
1206

C30
47UF

100V
YK

C31
47UF

100V
YK

R7
2K2

0W25
1206

R8
2K2

0W25
1206

P1 Amplifier Main PCB

Filename:

L962CT2_2.0_PSU and Control.Sch

Notes:

Contact Engineer:

AGND_PSU1

VN67VVN70V

C34
100UF

100V
YXF

C35
100UF

100V
YXF

+5V(D)

RLY1C
Takamisawa
F1CA005V

DGND

P5

TR7

FMMT497

SOT-23

TR8

FMMT497
SOT-23

SHUTDOWN*

DC
VIPROT
THERM

INITIALS
Printed:

+5V(D)

R10
2K2

0W25
1206

P7

03_E249 KAL 2.022/08/03 Stability mods
03_E203 KAL 1.016/07/03 Production Release, VI Limiting changes
03_E184 KAL B.123/06/03 Changed sorbothane part numbers, corrected R179-182, R185-187
03_E111 KAL B.011/04/03 Corrected CON4, Redesigned protection cct and voicing mods
03_E055 KAL Minor Change to re-label gain switch positions A.118/02/03

Contact Tel: [phone]Kevin Lamb

ECO No. DESCRIPTION OF CHANGE

R9

2K2
0W25
1206

DCPROT
VIPROT
THERMPROT

DATE

22-Aug-2003

D7
BAS16
SOT-323

P6

2 3Sheet of

+12V(D)

AMPLIFIER
MUTING
RELAY

RLY2B
Omron

G2R-1-E-12VDC

TR9

P8

FMMT497

SOT-23

TRIGGER
AC PRESENT

SPKR2 ON
SPKR1 ON
STANDBY*

R11

2K2
0W25
1206

DGND

DRAWING NO.

D8
BAS16
SOT-323

+5V(D)

CON4

14
13
12
11
10

9
8
7
6
5
4
3
2
1

MOLEX
5229-NCPB

L962CT1

TO DISPLAY CARD

ISSUE

AGND_SIG

CON100
Neutrik
NC3MBH-B

1 2

3

3

G

SELECT XLR

SELECT PHONO

SKT100
KUNMING
GOLD

SCRN

CHASSIS1

+15VD

-15VD

21

SW100A
SPUN191400

CON101
Neutrik
NC3FBH2-B

2 1

D106
BAV99

SOT-23

NC1
C1
NO1

R192

R106

100R 0W25

1206
C126

1N0
100V
FKP2

12

3

3

SW100B
SPUN191400

12CON102

NF

VP67V

R125
6K8

0W25
MF

C120

R126

47UF

6K8

TR100

+15VD

IC100
SSM2143S
SO-8

7

G

VCC

SNS

2

IN-

VO

3

IN+

REF

VEE

D107

4

BAV99
SOT-23

-15VD

NC2
C2
NO2

GAIN
GAINP7ARCAM

DZ100
BZX84C

4V7
SOT-23

P100

DZ101
BZX84C

4V7

NF

SOT-23

5

6

1

AGND_SIG

AGND_SIG

AGND_SIG

SW101A
SPUN191400

R123

820R
0W25

MF

C100
100N
50V
0805

AGND_PSU1

AGND_PSU1

C101
100N
50V
0805

SW101B
SPUN191400

NC1
C1
NO1

R124

6K8
0W25
MF

C129
470P

100V
FKP2

C127
100UF

25V
CFNE

C128
100UF
25V
CFNE

NC2

GAIN=28.3

C2

GAIN=37.0

NO2

R129

100R
0W25
MF

AGND_PSU1

AGND_SIG

C102

NF

R100

10R
0W25
1206

R101

10R 0W25

1206

P101

VN67V

FMMT497
SOT-23

AGND_PSU1

P102

TR114

FMMT597
SOT-23

AGND_PSU1

0W25
MF

R127
6K8

0W25
MF

R128
6K8

0W25
MF

C130
22UF

20V
OSCON

C131
22UF

20V
OSCON

AGND_PSU1

DZ102

DZ103

AGND_PSU1

100V
YK

NF

NF

C121
47UF

100V
YK

C109

NF

AGND_SIG

C103

REF100
LM431AIM3
SOT-23

REF101
LM431AIM3
SOT-23

C112

NF

AGND_SIG

AGND_SIG

C110
100N

100V
MKS2

AGND_SIG

C111
100N

100V
MKS2

AGND_SIG

R132
22K

0W25
MF

AGND_SIG

100N
50V
0805

C104
100N

50V
0805

R130
12K
0W25
1206

P103

R104
2K2

0W25
1206

R131
12K
0W25
1206

P104

R105
2K2

0W25
1206

AGND_SIG AGND_PSU1

R133

D100

47R

BAS16

0W25

SOT-323

1206

P105 P112

TR115
FMMT597
SOT-23

C135

6U8 63V

MKS4

R142
22R
0W25
MF

R143
22R
0W25
MF

AGND_SIG

D101
BAS16

SOT-323

7

R118
4K7
0W25
1206

R138

1K5 0W25

MF
R144

1K8 0W25

MF
R140

1K5 0W25

MF
R146

1K8 0W25

MF

C136

NF

IC101B
TL072CD
SO-8

TR101
FMMT497

SOT-23

C137
10N

50V
0603

AGND_SIG

P108

IC101A
TL072CD

84

3

SO-8

1

2

P109

TR116
FMMT597

SOT-23
C138
10N

50V
0603

AGND_SIG

TR102
FMMT497
SOT-23

P111 P116

R134
47R

0W25
1206

6
5

R139

1K5 0W25

MF
R145

1K8 0W25

MF
R141

1K5 0W25

MF
R147

1K8 0W25

MF

AGND_PSU1

P106

P107

R137
0R0

0W25
1206

P110

C113
100N

100V
MKS2

C115
100N

100V
MKS2

C114
100N

100V
MKS2

AGND_PSU1

R148

1M0 0W25

D108
BAV99
SOT-23

AGND_PSU1

C122
47UF

100V
YK

1206

C123
47UF

100V
YK

R102

6K8 0W25

1206

C132
22UF

20V
OSCON

R103

6K8 0W25

1206

R135
47R

0W25
1206

P113

33P 250V

TR117
FMMT597

SOT-23

TR105
FMMT497

R168
150K

0W25
MF

SOT-23

TR122
4B1740

SOT-89

C139

PP

TR125
2SC4548

SOT-89

P121

R109

P122

100R

R164

0W25
1206

22R
0W25

P131

1206

R175
150R

0W25
1206

C144
47P

200V
0805

Trim output stage Iq

C133
22UF

20V
OSCON

R176
150R
0W25
1206

D104
BAS16

SOT-323

RV100
100R
LIN

C145
47P
200V
0805

R165
22R
0W25
1206

P126

TR123
2SA1740

SOT-89

C116
100N

100V
MKS2

P124

AGND_SIG

R169
150K

0W25

TR103
FMMT497

SOT-23

R161
22R

0W25
1206

TR124
4B4548

SOT-89

TR104
FMMT497

SOT-23

R136
47R

0W25
1206

MF

P123

TR118
FMMT597
SOT-23

R110
100R

P125

0W25
1206

R149
6K8
0W25
1206

P114

R150
1K0
0W25
1206

C140

33P 250V

PP

P115

D109
SBYV27-200

DO-15

TR126
SAP15NY
SAP

TR128
SAP15PY
SAP

D110
SBYV27-200

DO-15

C117
100N

100V
MKS2

R177
150R

0W25
1206

C134
22UF

20V
OSCON

R178
150R
0W25
1206

VP58V

C124
47UF

100V
YK

Measure Iq

CON103

1
2

HARWIN
M20-973

C125
47UF

100V
YK

VN58V

D111
1N4003

DO-41

D112
1N4003

DO-41

BASE1

EMITTER1

OUTPUT

EMITTER2

BASE2

AGND_RC

LS100
G P PRECISION

L100
2U2

R183

10R 2W

CF
R184
4R7
2W
CF

C150
47N
100V
MKS2

RLY2A

Omron
G2R-1-E-12VDC

CHASSIS1

AGND_LS

C118
100N

100V
MKS2

AGND_PSU3

C146
47P

200V
0805

C147
47P
200V
0805

TR127
SAP15NY
SAP

TR129
SAP15PY
SAP

R153

1K0
0W25
1206

R154

1K0
0W25
1206

C119
100N

100V
MKS2

R152
1K0

0W25
1206

R155
1K0

0W25
1206

AGND_PSU3

BASE2

BASE1

EMITTER1

OUTPUT

EMITTER2

R167

1K2
0W25
1206

R166

1K2
0W25
1206

P118

R108
330R

0W25
1206

P119

R107
330R

0W25
1206

VP58V

R116
18K

0W25
1206

P117

R189

2K2 0W25

R188

1206

18K
0W25
1206

C141

P157

10UF
50V
YK

R162
1K0

0W25
1206

R163
1K0

0W25
1206

C142
10UF

50V
YK

R190
18K

0W25
1206

2K2 0W25

P120

R117
18K

0W25
1206

VN58V

DZ105
BZX84C

33V
SOT-23

DZ106
BZX84C

33V
SOT-23

P156

R191

1206

D102

BAS16
SOT-323

R111

100R
0W25
1206

R112

100R 0W25

1206

R113

100R 0W25

1206

Instant SOA limiting

D103

BAS16 SOT-323

P127

R179

OPTO100A
PC3Q66Q
MINI-FLAT

1

C107

2

100N

R171

50V
0805

22K
0W25

TR106

P128

FMMT497

C105

SOT-23

100N
50V
0805

C106
100N
50V
0805

TR119

P129

FMMT597
SOT-23

P130

R170

22K
0W25
1206

P135

AGND_PSU3

C148
100UF

16V
NONP

1206

P133

R151
1K0
0W25
1206

P134

TR107
FMMT497
SOT-23

C149
100UF

16V
NONP

DC offset detection

+5V(D) +5V(D) +5V(D)

16
15

R119
4K7

0W25
1206

DGND

R120

4K7

0W25

1206

OPTO100B
PC3Q66Q

VIPROT

MINI-FLAT
3
4

P136P132 P137

R172
22K

0W25
1206

P138

D105
BAS16
SOT-323

P139

TR108
FMMT497
SOT-23

TR120
FMMT597
SOT-23

P140

R173
22K

0W25
1206

P143 P144

R114
100R

0W25
1206

AGND_PSU3

P141

TR110
FMMT497
SOT-23

14
13

R121
4K7

0W25
1206

DGND

R174
22K

0W25
1206

P142

TR109
FMMT497
SOT-23

R115
100R

0W25
1206

DCPROT

P146

DRAWING TITLE

23425

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

OPTO100C
PC3Q66Q
MINI-FLAT

R180
22K

0W25
1206

5
6

TR111

FMMT497
SOT-23

12
11

R122
4K7

0W25
1206

DGND

Over temperature sensing

DBR100
W02G

C151

AGND_PSU3DGND

100N
50V
0805

DZ107

BZX84C 6V8

SOT-23

P148

P1 Amplifier Main PCB

Filename:

L962CT3_2.0_Power Amplifier.sch

Notes:

Contact Engineer:

270R
0W25

THERMPROT

1206

P145

R181
10K

0W25

P147

1206

R182
10K

0W25
1206

OPTO100D

7
8

PC3Q66Q
MINI-FLAT

R156
1K0

0W25
1206

P158

60V DC Output Fault Detect

Contact Tel: [phone]Kevin Lamb

RTH100
PTC 110DEG

PTC

P149

R185

P150

100K

TR121

0W25
1206

FMMT597
SOT-23

R186
120K

0W25
1206

R187
39K

0W25
1206

AGND_PSU3

R159

P151 P152

10
9

1K0 0W25

1206

03_E249 KAL 2.022/08/03 Stability mods
03_E203 KAL 1.016/07/03 Production Release, VI Limiting changes
03_E184 KAL B.123/06/03 Changed sorbothane part numbers, corrected R179-182, R185-187
03_E111 KAL B.011/04/03
03_E055 KAL Minor Change to re-label gain switch positions A.118/02/03

ECO No. DESCRIPTION OF CHANGE

INITIALS
Printed:

C143

DZ104
BZX84C

100UF

15V

25V

SOT-23

YK

+5V(D)

R157
1K0
0W25
1206

P153

R158

C108

1K0
0W25

100N
50V
0805

TR112
BC849B
SOT-23

22-Aug-2003

DATE

TR132

1206

BC859B
SOT-23

P155

R160
1K0
0W25
1206

Corrected CON4, Redesigned protection cct and voicing mods

3 3Sheet of

VIPROT

DCPROT

THERMPROT

+5V(D)

+5V(D)

TR131
MMUN2111LT1
SOT-23

P154

DRAWING NO.

TR130
MMUN2111LT1
SOT-23

SHUTDOWN*

TR113
MMUN2211LT1
SOT-23

DGND

VIPROT

DC

THERM

L962CT

ISSUE

120mm dia max

windings connect to 10 way molex connector 39-01-2105. Use MOLEX pin

This load current is not typical of normal operation which is considered to be

Transformer Specification For 115/230V P1 transformer
Arcam Part Number L926TX
Material Safety Specification

1. Winding Wire to be Grade 2 (130C rating) to BS 60317-4 1995

2. Mylar Polyester Insulator 130C Rated

3. Potting Compound PC3502 E135297(M) or equivalent.
Mechanical Specification

1. Centre of transformer to be potted (as shown).

2. Primary windings connect to 6 way MOLEX connector 39-01-2065.
Secondary

44476-3112.
MOLEX connectors have pin numbers indicated on them. Connectors to be
UL94V0 rated.

Note Molex UL94V0 receptacles may be long lead time items.
Equivalent Conexcon 6740 Series UL94V0 parts may be used.

6 Way receptacle 6740-1060
10 Way receptacle 6740-1100

3. Primary wires are enclosed in a common sleeve. Secondary wires are
enclosed in a common sleeve.
Use UL rated sleeving.

4. All wire lengths in mm. Lengths are +5.0, -0

5. Please adhere rubber insulating pad to bottom of transformer as shown.
Electrical Specification

1. Transformer to have dual 115V primaries to allow parallel operation for
115V input and series operation with 230V input.

2. Transformer input voltage range
115V -18% +14% (97.5V to 132.5V)

230V -18% +14% (195V to 265V)

3. Transformer to have 5 secondary windings as show in the adjacent
drawing.

4. Loaded DC voltages specified at 230V AC in (with transformer primaries
in series)

5. Each secondary winding to have a full wave (4diode) bridge to produce a
single DC rail.
(AS shown in diagram)

6. Output Capacitance to be as specified per rail.

7. Output voltages to be as specified in table and as shown in diagram.

8. Note. Transformer to be used in a power amplifer. The specified load
currents on the high power rails (VP58V, VN58V) represent the effective
current drawn when the amplifier is loaded to full rated power (200W) into
an 8ohm load and operated continuously.

1/8th of full rated power. SECONDARIES

WHITE

6

3

BROWN

Secondary Winding Voltage and Current Specs
Bridge Rectifier Vf diode = 1.1V per leg = 2.2V Total
(ideal TX assumed)

AC Winding

Connector Latch

46
1253

Pin outs of Molex connectors
As viewed looking down at the end
the wires enter the connector

BLACK

4

5

1

2

BLUE

Label

VP70V
VP58V
VN58V
VN70V
VP18V

10

5

Capacitor

Cout
(uF)

1000
20,000
20,000
1000
1000

10 9

BLUE

WHITE

10 way6 way

BROWN

9

4

RED

12736845

VIOLET

BLACK

7

8

2

3

ORANGE

YELLOW

Effective DC
Load Current

(mA)

50
2250
2250

50

175

1mm

GREY

Wires to exit from near top of TX
Such that wires do not obstruct lid

6

Note Lid is only 1mm above top

face of max height transformer

1

GREEN

Secondary

Voltage

(V r.m.s.) (Ohm)(Volt) (Volt)

50.8

43.0

43.0

50.8

14.35

Capacitor

Peak Voltage

18.75

COUNTERBORE DIA 25mm

Lid

Rubber insulating pad

Capacitor

Vpk Vmin
(Volt)

70.2

58.8

58.8

70.2

Min Voltage

17.25

69.8

57.8

57.8

69.8

Capacitor

Average
Voltage

70.0

58.3

58.3

70.0

18.0

3
6

50mm

78mm max

SCREEN WIRE GREEN/YELLOW

6 way MOLEX MFIT JNR

4

6 Way Molex

1

40mm

POTTING COMPOUND

7mm DIA HOLE

Rubber insulating pad to have
7mm minimum diameter hole through centre 6

Load Resistor

to simulate

Load RL

25.6

25.6
1400

102.8

Secondary

Winding r.m.s.

Current

(A r.m.s.)

0.251400

8.0

8.0

0.25

0.52

PRIMARIES

BROWN

115Vac

WHITE
BLACK

115Vac

BLUE

200mm

160mm

SCREEN WIRE

PRIMARIES

SECONDARIES

50.8Vac

43.0Vac

43.0Vac

50.8Vac

14.35Vac

90 degree

VP70V

VP58V

VN58V

VN70V

VP18V

BLACK

BROWN

RED

ORANGE
YELLOW

GREEN

BLUE

WHITE

GREY

VIOLET

8
9

4
3

2
1

10 Way Molex

10

5

7

Voltage on Reservoir Capacitor

10mS

TEST CIRCUIT

AC IN

Vf = 1.1V
per diode

10 way MOLEX MFIT JNR

Vpk
Vaverage
Vmin

130mm

+VOUT

DRAWING TITLE

+

Cout

RL see above table.

ARCAM

GND

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

POWER TX FOR P1 115/230V

Filename:
Notes:

Contact Engineer:

L926TX_1.0.sch

Contact Tel: [phone]Kevin Lamb

ECO No. DESCRIPTION OF CHANGE

INITIALS

Printed:

DATE

7-Aug-2003

1 1Sheet of

A3

DRAWING NO.

L926TX

1.0Reduced VP58V, VN58V to 43.0VacKAL03_E240
B.3'UL rated sleeving' was 'UL94-V0'SLS03_E193
B.2Added note about UL94-V0 sleevingKAL03_E192
B.1Corrected Schematic Symbol pin numbersKAL03_E158
B.0Changed Pri wire colours, VP58 and VN58 +1V, lead out formsKAL03_E141

ISSUE

Transformer Specification For 100V P1 transformer

windings connect to 10 way molex connector 39-01-2105. Use MOLEX pin

This load current is not typical of normal operation which is considered to be

Arcam Part Number L927TX
Material Safety Specification

1. Winding Wire to be Grade 2 (130C rating) to BS 60317-4 1995

2. Mylar Polyester Insulator 130C Rated

3. Potting Compound PC3502 E135297(M) or equivalent.
Mechanical Specification

1. Centre of transformer to be potted (as shown).

2. Primary windings connect to 6 way MOLEX connector 39-01-2065.
Secondary

44476-3112.
MOLEX connectors have pin numbers indicated on them. Connectors to be
UL94V0 rated.

Note Molex UL94V0 receptacles may be long lead time items.
Equivalent Conexcon 6740 Series UL94V0 parts may be used.

6 Way receptacle 6740-1060
10 Way receptacle 6740-1100

3. Primary wires are enclosed in a common sleeve. Secondary wires are
enclosed in a common sleeve.
Use UL rated sleeving.

4. All wire lengths in mm. Lengths are +5.0, -0

5. Please adhere rubber insulating pad to bottom of transformer as shown.
Electrical Specification

1. Transformer to have dual 100V primaries to allow parallel operation for
100V input.

2. Transformer input voltage range
100V -15% +15% (85V to 115V)

3. Transformer to have 5 secondary windings as show in the adjacent
drawing.

4. Loaded DC voltages specified at 100V AC in (with transformer primaries
in parrallel)

5. Each secondary winding to have a full wave (4diode) bridge to produce a
single DC rail.
(AS shown in diagram)

6. Output Capacitance to be as specified per rail.

7. Output voltages to be as specified in table and as shown in diagram.

8. Note. Transformer to be used in a power amplifer. The specified load
currents on the high power rails (VP58V, VN58V) represent the effective
current drawn when the amplifier is loaded to full rated power (200W) into
an 8ohm load and operated continuously.

1/8th of full rated power.

Connector Latch

46
1253

Pin outs of Molex connectors
As viewed looking down at the end
the wires enter the connector

BLACK

WHITE

4

5

6

1

2

3

BLUE

BROWN

10 9

BLUE

10

5

WHITE

10 way6 way

BROWN

9

4

RED

BLACK

7

8

2

3

ORANGE

12736845

VIOLET

GREY

6

1

GREEN

YELLOW

Wires to exit from near top of TX
Such that wires do not obstruct lid

1mm

Note Lid is only 1mm above top

face of max height transformer

Secondary Winding Voltage and Current Specs
Bridge Rectifier Vf diode = 1.1V per leg = 2.2V Total
(ideal TX assumed)

AC Winding

Label

VP70V
VP58V
VN58V
VN70V
VP18V

Capacitor

Cout
(uF)

1000
20,000
20,000
1000
1000

Effective DC
Load Current

(mA)

50
2250
2250

50

175

Secondary

Voltage

(V r.m.s.) (Ohm)(Volt) (Volt)

50.8

43.0

43.0

50.8

14.35

Capacitor

Peak Voltage

Vpk Vmin
(Volt)

70.2

58.8

58.8

70.2

18.75

120mm dia max

COUNTERBORE DIA 25mm

Lid

Rubber insulating pad

Capacitor

Min Voltage

69.8

57.8

57.8

69.8

17.25

Capacitor

Average
Voltage

70.0

58.3

58.3

70.0

18.0

SECONDARIES

BLACK

PRIMARIES

50.8Vac

3
6

50mm

78mm max

4

6 Way Molex

1

SCREEN WIRE GREEN/YELLOW

40mm

POTTING COMPOUND

7mm DIA HOLE

Rubber insulating pad to have
7mm minimum diameter hole through centre 6

BROWN

WHITE
BLACK

BLUE

100Vac

100Vac

43.3Vac

43.3Vac

50.8Vac

14.35Vac

200mm

160mm

SCREEN WIRE

Load Resistor

to simulate

Load RL

25.6

25.6
1400

102.8

Secondary

Winding r.m.s.

Current

(A r.m.s.)

0.251400

8.0

8.0

0.25

0.52

PRIMARIES

6 way MOLEX MFIT JNR

90 degree

SECONDARIES

VP70V

BROWN

RED

VP58V

ORANGE
YELLOW

VN58V

GREEN

BLUE

VN70V

WHITE

GREY

VP18V

VIOLET

8
9

4
3

2
1

10 Way Molex

10

5

7

Voltage on Reservoir Capacitor

10mS

TEST CIRCUIT

AC IN

Vf = 1.1V
per diode

10 way MOLEX MFIT JNR

Vpk
Vaverage
Vmin

130mm

+VOUT

DRAWING TITLE

+

Cout

RL see above table.

ARCAM

GND

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

POWER TX FOR P1 100V

Filename:
Notes:

Contact Engineer:

L927TX_1.0.sch

1.0Reduced VP58V, VN58V to 43.0VacKAL03_E240
B.1'100V' text was '115/230V', 'UL rated sleeving' was 'UL94-V0'SLS03_E193
B.0Changed voltages as per L926TX, sleeving to be UL94-V0KAL03_E192
A.0Prototype ReleaseKAL03_E006

ECO No. DESCRIPTION OF CHANGE

Contact Tel: [phone]Kevin Lamb

INITIALS

Printed:

DATE

7-Aug-2003

1 1Sheet of

A3

DRAWING NO.

L927TX

ISSUE