Arcam P1 Service Manual

P1 AmpliÞer

ARCAM

Bringing music & movies to life

Service
Manual

Issue 1.0

ARCAM

Bringing music & movies to life

!

Circuit description

!

Circuit diagrams

o

L929AY switch PCB

o L962AY amplifier main PCB

!

Transformers

o L929TX – 115/230VAC toroidal
o L927TX – 100VAC toroidal
o

L907TX – 100VAC frame

!

Exploded view diagram

Contents List

!

Mechanical & packing parts list

!

Circuit board silk screen & parts list

o L929AY switch PCB
o L962AY amplifier main PCB

Fmj P1 Amplifier circuit description

roduct description

P

The

P1 has been has been designed to

by A.Moore

provide unsurpassed sound quality, the main
design features are as follows.

Gain switchable between Arcam gain

o

and THX gain (29dB closed loop) a 0dB
signal equates to 100 watts into 8
ohms.

P

ower supply/Control description

The

mains input is applied via SKT1. Y
capacitors C1 and C2 and X capacitor, C5
provide filtering and EMC suppression R2
provides a discharge path for the capacitors.

SW1 allows the selection of the mains voltage
that the unit will operate from, the main standby
transformer TX1 and the main transformer TX2
have duel primary windings, these windings are
connected in parallel for 115v operation and in
series for 230v operation.

o Input switchable between unbalance

phono and balance XLR.

o The amp is capable of producing >180

watts of sinusoidal output into an 8
ohm load and greater than 300 watts
into a 3.2 ohm load (subject to thermal
dissipation limits).

o Relay coupled for silent on/off

operation.

o Opto-isolated fault and control lines to

the control PCB.

o DC coupled signal path with

integrating servo to remove residual
DC errors.

o Instantaneous safe operating area

protection.

o Exceptionally low harmonic and

intermodulatiion distortion.

o Flat frequency response.

o Fast and asymmetric slew rate.

High damping factor

o

o Unconditionally stable into loads of

upto +/- 90-degree phase.

TX1 is powered at all times when a mains
voltage is applied to the mains input socket the
secondary of this transformer is fused by via FS3
and rectified by diode bridge DBR1 and
regulated to 5V by low dropout regulator at
location REG2 to provide a constant +5v(D)
supply for the micro.

Please note

: the digital supply ground is
connected to the chassis ground via a 100-ohm
resistor.

Relay RLY1 provides a means of powering the
main transformer for normal operation (as
apposed to standby operation where only TX1 is
powered) this relay is under the control of the
Micro IC1 and SW3 on the control board the
relay contacts of RLY1 are suppressed by C3
and C4 these prevent sparking and increase the
relay life span.

The circuitry around TR10 functions as a mains
present detection circuit A.C is feed into this
circuit before the Bridge network at location
DBR1 when mains is present the circuit drives HI
via opto-coupler TR11.

Relay 2 is the speaker output control relay this is
used to prevent clicks and pops at power/power
down and to disconnect the speaker output
under a fault condition, this relay is controlled by
the Micro at location IC1 as the P1 has no
manual speaker switching capabilities the micro
will automatically initialise the speaker relay 3
seconds after power up, the control line SPKR1
on pin 5 of CON 4 switches high to switch the
relay ON via TR9.

The P1 has two trigger inputs these are
applied by SKT2 and are wire OR-ed by D5
and D6. The single trigger signal is clamped
to 4v7 by DZ1 and fed to the control card by
CON4. Applying a 12v trigger signal to
either (or both) trigger inputs on the SKT2
instructs the microcontroller to enable or
disable the power amplifier. The trigger will
be seen as a HI line on Pin 11 of CON 4.

The P1 also provides two 2 triggered
outputs. These are current limited 12v D.C
levels, which are used to provide trigger
signals to other units within the customer’s
installation. The 12v output is present when
transformer TX2 is live i.e. when the unit is
not in standby.

TX2 has a Low voltage secondary winding
that supplies the trigger outputs only via
bridge rectifier DBR4 this is fed into REG1
(7812) regulator, TR1 and TR2 offer a
60mA current limit for both trigger outputs
and the entire circuit stage is fused by FS6
(T315mA) in case of overload.

The P1 utilizes a fairly unique

amp

power supply configuration these

main power

include.

The VAS stage is supplied by higher voltage
rails than the following output driver stage, this
allows the driver stage to fully saturate the
output driver stage without the use of a boot
strap circuit. This supply is exceptionally quite
and is critical to the sound quality of the P1.

Amplifier Stage

The

XLR connector at CON100 allows
balanced inputs to be applied to the amplifier
and CON101 allows for the balanced signal to
be daisy chained to a second P1.

The signal from CON100 is driven into IC100
this is a Balanced to single ended converter it
supplies a signal-ended output from a single
XLR input. The IC derives it power supply rails
from the +/- 67v rails these are dropped to
+/- 15v by the TR100 and TR114.

The unbalanced inputs signal arrives at
SKT100; the selection between the two input
options is accomplished by SW100. The
selected signal is clamped +/- 5v3 by the series
Zeners at location DZ103 and DZ104 this is to
prevent damage to the input of op-amp IC200,
due to leaky source signal or electrostatic
discharges.

Fig 1. Power amp power supplies.

Power supply Powers

+/- 67v D.C VAS stage.
+/- 58v D.C Output driver stage.

The t

wo sets of supplies are driven from
their own secondary windings and bridge
rectifier circuits DBR5 and DBR6 Rectify
the +/- 58v rails these are smoothed by
20,000uf of capacitance per phase. DBR2
and DBR3 are supplying the +/- 70v rails
these are dropped to +/- 67 by the Network
of R5, R6, R7, R8 and TR3, TR4, TR5, TR6
this is not a regulated supply as the rails
need to track the +/- 58v rails under mains
power fluctuations.

Please note: The +/- 70v rails are
individually fused by 315mA(T) fuses at
locations FS4 and FS5.

SW101 allows for the selection of two gain
settings these are 28.3 for “THX” and 37.5 for
the Arcam setting. The roll off setting is
340Khz.

The main power amplifier circuit is a classic
current feed-back design and can be thought of
as a large current feed-back op-amp the
topology is a refined high power output variant
of the A90/P7 design.

Op-amp IC101 is configured as a non-inverting
amplifier with a gain of 2. It’s purpose is to
provide current outputs (via it’s own power
supply pins) and a current input via it’s output
pin, the Op-amp performs the voltage to
current conversion (I-V) and phase splitting
necessary to drive the voltage gain stage. The
current feed-back occurs because the output of
IC101 drives into a 44 ohm load formed by the
two 22 ohm resistors R142 and R143 down to
ground, the power

Cont///

supply pin currents are half wave-rectified
versions of the drive current of the amplifier.
This causes the voltage gain, which is buffered
and passed on to the outputs. The feedback
from pin 1 of IC101 acts to reduce the gain of the
amplifier; when this current is roughly equal to
the current required to drive the input signal into
44-ohm’s equilibrium is reached and the closed
loop gain is defined. The output stage provides
the vast majority of the current required to drive
the 44-ohm load. The op-amp only needs to
provide a very small error current to give the
required voltage magnification.

Transistors TR101 and TR116 are common base
amplifiers their purpose is to provide the +/- 15v
rails necessary to drive the op-amp whilst
allowing the power supply currents that are
drawn to pass through into the Wilson current
mirror stage, this is formed by PNP transistors
TR102, TR104 and TR122 the NPN mirror is
formed by TR115, TR117 and TR122.

TR103 combines the two current mirrors to
provide a very high-gain current to voltage
(transresistance) gain stage roughly 80dB at low
frequency C114 and C132 with R149, R150
combine to give a open-loop pole at roughly
10Khz and a corresponding open-loop zero
around 500Khz. This allows for good time
domain performance and clean square wave
reproduction with no sign of ringing or overshoot.

Diodes D100 and D101 act to limit the current
through TR115 and TR112, if the input current
exceeds 14mA the diodes conduct and the
transresistance stage becomes a constant
current source killing the open loop gain and
preventing damage to the transistors.

TR103 provides a 4.7v bias voltage to allow
the following pre-driver stage to operate in
Class A.

TR123 and TR125 form a Class A pre-driver
emitter follower stage to boost the current gain
and isolate the transresistance stage from the
output transistors. TR105 and TR118 act as a
30mA current limit and prevent the destruction
of TR123 and TR125 under a fault condition.

R109, R164, R110 and R165 loosely decouple
the emitters of TR123 and TR125 from the
output stage.

TR128, TR129 and TR126, TR127 are Sanken
SAP 15N and SAP 15P Bi-polar output drivers
RV100 is the Bias adjust preset D104 protect
the Output drivers from destruction if RV100
goes open circuit.

C144 to C147 provide local R.F stability and
prevent oscillation. D111 and D112 are catch
diodes to reduce the effects of back-EMF from
the loudspeaker coils/load.

R164, R183, C150 and L100 form the Zobel
network, these components ensure that the
amplifier sees a constant load of 4.7 ohms at
high at very high frequencies and improve
stability – reduce H.F noise. L100 and R183
decouple the load at high frequencies to
ensure amplifier stability into capacitive loads.

SAP 15NY SAP 15PY

IC101 forms a D.C intergrating servo. Its
purpose is to remove residual D.C errors due to
slight device mismatch and component
tolerances. It is configured as an inverting
intergrator with a time constant of <0.5 seconds.
Any D.C offset at the output of the amplifier will
cause the output if the op-amp to go negative
increasing the current in the negative supply pin
and thus pulling the output down to ground (and

SAP

vica versa). D108 protects the inverting input of
the op-amp under fault condition.

S-E 0.22 Ohm

Under output driver failure conditions the 0.22 internal

emitter resistor will usually go open, the resistor should be
measured between pins S and E.

Protection circuit block

The P

1 Power amplifier incorporates 4 modes of

protection these are as follows.

o Instantaneous VI current limiting.

D.C offset protection.

o

o Over-Temperature.

o Insulation failure.

VI current

The

limit circuit is built around TR106

and TR119 they sense the voltage across the

0.22-emitter resistors (hence emitter current) and
the collector emitter current or device power
dissipation exceeds a preset limit.

The circuit is designed to allow large unrestricted
currents into loads of 3 ohms and above but limit
the current into a short circuit or very low
impedance loads.

C141, C142 and R162, R163 form a 2.2ms time
constant, which will allow larger transients of
current delivery for a few milliseconds, to ensure
that the amplifier has a sufficiently large transient
capability to drive “difficult” loudspeaker loads.

TR106 senses positive current surges and
TR119 senses negative surges these intern
activate TR107 and switch the optocoupler
OPTO100A this fault notification is sent to the
microcontroller and the output relay is switched
off to protect the amplifier/loudspeaker coils.

D.C offset

The

protection is built around TR108
and TR109 a positive D.C offset will switch
TR108, a negative D.C offset will switch TR120
this will intern switch TR110 and TR109 on in
either case this causes the optocoupler at
location OPTO100B to transmit a fault line signal
to the micro.

RTH100 is low when the amplifier is cool
typically a few hundred ohms, in the event of a
thermal overload situation (Above 110 c)
RTH100 will go into a high impedance state
this will switch TR121 on and intern this will
switch TR111 on and cause OPTO 100C to
send a fault line flag to the micro.

The remaining protection stage is an
insulation breakdown detect circuit this is
essentially looking for a breakdown of the
insulating pad between the output devices and
the heatsinks thus +60v path to ground.

The protection is formed around bridge rectifier
package DBR100, this will route current
through the LED in optocoupler OPTO 100D in
the event that the DGND and AGND ground
planes move apart by more than 10v. When
the transistor in the Opto conducts the thyristor
formed by TR112 and TR132 is turned On.

Once the Thyristor conducts it pulls the
SHUTDOWN* signal low and turns TR8 (Sheet

2) off thus opening both Speaker relays and
the Power relay.

Please note

: The unit can only be reset once
the mains power supply to the unit has been
removed and the Amplifiers own power
supplies have been given sufficient time to
discharge +30 secs. The standby transformer
of course remains active.

TR130 asserts the microprocessor fault line
DCPROT so that the micro can indicate the
fault via the front panel mounted LED.

Fig 2 Fault line location and operational status.

Pl

ease note:

Con 4 is the connector between
the main board and the display board, use Pin
2 of Con 4 as a reference (DGND).

The Thermistor RTH100 provides

protection

and is connected to the positive

Thermal

supply rails adjacent to the collector leg of the
output driver at location TR125 this allow the
thermistor to sense the temperature of the output
device. The output impedance of

Fault line Location Status

D.C offset Con 4 Pin 9 LOW (0v)
V/I Prot Con 4 Pin 8 LOW (0v)
Thermal Con 4 Pin 7 LOW (0v)

Test Specification

Major component identification.

Fr

equency response

. 8-ohm load

Input set to 1v rms

20Hz – 20kHz = +/- 0.5 dB

Distortion

. THD+N 0dBR 4-ohm load.

.

Input set to 1v rms.

20Hz – 20Khz = <0.02%

aximum output

M

into an 8-ohm load.

Input level set to 1.34 rms 1Khz = 180 watts
di

stortion should be below 0.05%

THD+N

Bias setting notes

FMMT 497/597

BC849/BC859

1=Base
2=Emitter
3=Collector

TLO 72

The bias

of the P1 is set using an Audio
precision audio analysis package and we
calibrate the power stage for minimum THD the
bench set up procedure follows.

o

Set the input signal to 150mv rms,
frequency to 10kHz. Induce a 4-ohm load
at the speaker output.

o

Rotate preset RV100 clockwise and
observe that the THD falls. Continue to
rotate the preset until the THD falls to a
minimum level and just starts to clime
again.

o

Switch input signal off and allow the
amplifier the Quiesce +30secs

o

Measure the bias level at test point Con
103 (Bias read) and confirm the reading is
below the absolute max of 35mV.

SSM2143

74HC32N

ITEM1 1 Blank PCB P35/P1 FMJ Amp Microcontroller BoardL929PB

+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 Sorbo haneE802AP 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 Sorbo haneE826AP

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 Limi ing 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 posi ions 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_S G

CON100
Neutrik
NC3MBH-B

1 2

3

3

G

SELECT XLR

SELECT PHONO

SKT100
KUNMING
GOLD

SCRN

CHASSIS1

15VD

-15VD

21

SW100A
SPUN191 00

CON101
Neutrik
NC3FBH2-B

2 1

D106
BAV99

SOT 23

NC1
C1
NO1

R192

R106

100R 0W25

1206
C126

1N0
100V
FKP2

3

3

SW100B
SPUN191 00

12CON102

NF

VP67V

R125
6K8

0W25
MF

C120

R126

7UF

6K8

TR100

15VD

12

G

NC2
C2
NO2

D107
BAV99

SOT-23

IC100
SSM21 3S
SO-8

7

VCC

SNS

2

N-

VO

3

N

REF

VEE

-15VD

GA N
GA NP7ARCAM

DZ100
BZX8 C

V7

SOT-23

P100

DZ101
BZX8 C

V7

NF

SOT-23

5

6

1

AGND_S G

AGND_SIG

AGND_SIG

SW101A
SPUN191 00

R123

820R
0W25

MF

C100
100N
50V
0805

AGND_PSU1

AGND PSU1

C101
100N
50V
0805

SW101B
SPUN191 00

NC1
C1
NO1

R12

6K8
0W25
MF

C129

70P
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_S G

C102

NF

R100

10R
0W25
1206

R101

10R 0W25

1206

P101

VN67V

FMMT 97
SOT-23

AGND_PSU1

P102

TR11

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

7UF
100V
YK

C109

NF

AGND_S G

C103

REF100
LM 31AIM3
SOT-23

REF101
LM 31AIM3
SOT-23

C112

NF

AGND_SIG

AGND_SIG

C110
100N

100V
MKS2

AGND_S G

C111
100N

100V
MKS2

AGND_SIG

R132
22K

0W25
MF

AGND_SIG

100N
50V
0805

C10
100N

50V
0805

R130
12K
0W25
1206

P103

R10
2K2

0W25
1206

R131
12K
0W25
1206

P10

R105
2K2

0W25
1206

AGND_S G AGND PSU1

R133

D100

7R

BAS16

0W25

SOT-323

1206

P105 P112

TR115
FMMT597
SOT-23

C135

6U8 63V

MKS

R1 2
22R
0W25
MF

R1 3
22R
0W25
MF

AGND_SIG

D101
BAS16

SOT-323

7

R118

K7
0W25
1206

R138

1K5 0W25

MF
R1

1K8 0W25

MF
R1 0

1K5 0W25

MF
R1 6

1K8 0W25

MF

C136

NF

C101B
TL072CD
SO-8

TR101
FMMT 97

SOT-23

C137
10N

50V
0603

AGND_S G

P108

IC101A
TL072CD

8

3

SO-8

1

2

P109

TR116
FMMT597

SOT-23
C138
10N

50V
0603

AGND_S G

TR102
FMMT 97
SOT-23

P111 P116

R13

7R
0W25
1206

6
5

R139

1K5 0W25

MF
R1 5

1K8 0W25

MF
R1 1

1K5 0W25

MF
R1 7

1K8 0W25

MF

AGND_PSU1

P106

P107

R137
0R0

0W25
1206

P110

C113
100N

100V
MKS2

C115
100N

100V
MKS2

C11
100N

100V
MKS2

AGND_PSU1

R1 8

1M0 0W25

D108
BAV99
SOT 23

AGND PSU1

C122

100V
YK

1206

C123

100V
YK

7UF

7UF

R102

6K8 0W25

1206

C132
22UF

20V
OSCON

R103

6K8 0W25

1206

R135

7R
0W25
1206

P113

33P 250V

TR117

FMMT597

SOT-23

TR105
FMMT 97

R168
150K

0W25
MF

SOT-23

TR122

B17 0

SOT-89

C139

PP

TR125
2SC 5 8

SOT-89

P121

R109

P122

100R

R16

0W25
1206

22R
0W25

P131

1206

R175
150R

0W25
1206

C1

7P
200V
0805

Trim output stage Iq

C133
22UF

20V
OSCON

R176
150R
0W25
1206

D10
BAS16

SOT-323

RV100
100R
LIN

C1 5

7P
200V
0805

R165
22R
0W25
1206

P126

TR123
2SA17 0

SOT-89

C116
100N

100V
MKS2

P12

AGND_SIG

R169
150K

0W25

TR103
FMMT 97

SOT-23

R161
22R

0W25
1206

TR12

B 5 8

SOT-89

TR10
FMMT 97

SOT-23

R136

7R
0W25
1206

MF

P123

TR118
FMMT597
SOT-23

R110
100R

P125

0W25
1206

R1 9
6K8
0W25
1206

P11

R150
1K0
0W25
1206

C1 0

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

C13
22UF

20V
OSCON

R178
150R
0W25
1206

VP58V

C12

7UF
100V
YK

Measure Iq

CON103

1
2

HARWIN
M20-973

C125

7UF
100V
YK

VN58V

D111
1N 003

DO- 1

D112
1N 003

DO- 1

BASE1

EMITTER1

OUTPUT

EMITTER2

BASE2

AGND_RC

LS100
G P PRECISION

L100
2U2

R183

10R 2W

CF

R18

R7
2W
CF

C150

7N
100V
MKS2

RLY2A

Omron
G2R-1-E-12VDC

CHASSIS1

AGND_LS

C118
100N

100V
MKS2

AGND_PSU3

C1 6

7P
200V
0805

C1 7

7P
200V
0805

TR127
SAP15NY
SAP

TR129
SAP15PY
SAP

R153

1K0
0W25
1206

R15

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

C1 1

P157

10UF
50V
YK

R162
1K0

0W25
1206

R163
1K0

0W25
1206

C1 2
10UF

50V
YK

R190
18K

0W25
1206

2K2 0W25

P120

R117
18K

0W25
1206

VN58V

DZ105
BZX8 C

33V
SOT-23

DZ106
BZX8 C

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

FMMT 97

C105

SOT-23

100N
50V
0805

C106
100N
50V
0805

TR119

P129

FMMT597
SOT-23

P130

R170

22K
0W25
1206

P135

AGND_PSU3

C1 8
100UF

16V
NONP

1206

P133

R151
1K0
0W25
1206

P13

TR107
FMMT 97
SOT-23

C1 9
100UF

16V
NONP

DC offset detection

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

16
15

R119

K7
0W25
1206

DGND

R120

K7
0W25
1206

OPTO100B
PC3Q66Q

VIPROT

MINI-FLAT

3 1

P136P132 P137

R172
22K

0W25
1206

P138

D105
BAS16
SOT-323

P139

TR108
FMMT 97
SOT 23

TR120
FMMT597
SOT 23

P1 0

R173
22K

0W25
1206

P1 3 P1

R11
100R

0W25
1206

AGND_PSU3

P1 1

TR110
FMMT 97
SOT-23

13

R121

K7
0W25
1206

DGND

R17
22K

0W25
1206

P1 2

TR109
FMMT 97
SOT-23

R115
100R

0W25
1206

DCPROT

P1 6

DRAWING I LE

23425

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

OPTO100C
PC3Q66Q
M NI-FLAT

R180
22K

0W25
1206

5
6

TR111

FMMT 97
SOT 23

12
11

R122

K7
0W25
1206

DGND

Over temperature sensing

DBR100
W02G

C151

AGND_PSU3DGND

100N
50V
0805

DZ107

BZX8 C 6V8

SOT-23

P1 8

P1 Amplifier Main PCB

Fi ename:

L962C 3_2 0_Power Amplifier sch

Notes:

Contact Engineer:

270R
0W25

THERMPROT

1206

P1 5

R181
10K

0W25

P1 7

1206

R182
10K

0W25
1206

OPTO100D

7
8

PC3Q66Q
MINI-FLAT

R156
1K0

0W25
1206

P158

60V DC Output Fault Detect

Contact el: 01223) 203243Kevn Lamb

RTH100
PTC 110DEG

PTC

P1 9

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_E2 9 KAL 2.022/08/03 Stab lity mods
03_E203 KAL 1.016/07/03 Production Re ease, VI Limiting changes
03_E18 KAL B.123/06/03 Changed sorbothane part numbers, corrected R179-182, R185-187
03_E111 KAL B 011/0 /03
03_E055 KAL Minor Change to re-abel gain switch pos tions A.118/02/03

ECO No DESCRP ION OF CHANGE

NI IALS
Prn ed:

C1 3

DZ10
BZX8 C

100UF

15V

25V

SOT-23

YK

5V(D)

R157
1K0
0W25
1206

P153

R158

C108

1K0
0W25

100N
50V
0805

TR112
BC8 9B
SOT 23

22 Aug 2003

DA E

TR132

1206

BC859B
SOT-23

P155

R160
1K0
0W25
1206

Corrected CON , Redesigned protect on cct and voicing mods

3 3Sheet of

VIPROT

DCPROT

THERMPROT

5V(D)

5V(D)

TR131
MMUN2111LT1
SOT-23

P15

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

1. Winding Wire to be Grade 2 (130C ra ing) 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 opera ion 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 (wi h 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

Effec ive 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 insula ing 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

PR MARIES

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 Schema ic Symbol pin numbersKAL03_E158
B.0Changed Pri wire colours, VP58 and VN58 +1V, lead out formsKAL03_E141

ISSUE

Transformer Specifica ion 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 ra ing) 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 opera ion 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 (wi h 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

Effec ive 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 insula ing 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

PR MARIES

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

P1 Mechanical and packing parts list

Part No Item no Description

GENERAL MECHANICAL PARTS

E200AY 4 Rear Panel Assembly FMJ P1
E212AY 6 FMJ A32 Chassis Assembly
E822PM1 7 Foot Black Alpha
E907MC 9 Koolpad O/P Device Diva A85
E912MC 10 Clamp 85 Amp Transistor
E918HK 11 Heatsink FMJ P1
E921MC 12 Clamp Heatsink Diva P85 3RD Channel
HA3V06A 15 M Screw Torx P/H M3x6MM ST ZP
HA4A12B 16 M Screw Pan Supa M4x12MM ST BLK
HA5K70A 17 Bolt Hex HD M5x70MM ST ZP
HA5L20B 18 M/C Hex HD. Bolt M5-0.8X20MM Steel - Zinc Black Passivate
HA6K50A 19 Bolt Hex HD M6x50MM Mczp
HB25V12B 20 Screw Taptite M2.5X12MM Pan Torx(T8) Steel Zinc Plate Black
HE6V06B 21 Screw Sftp Torx No.6x6MM BLK
HF4V09B 22 Screw Self-Tapping-Sems NO.4 X 9MM Pan Torx-Slot Steel Zinc-Plate BLK
HJ4A00A 23 Nut M4 Full ST ZP
HL4SB 24 Washer M4 Int Shakeproof BLK
HL5CA 25 Bright Washer M5 (Form C) to BS 4320
HL6MA 26 Bright Washer M6 (Mudguard O.D. 20mm)
L915CA 27 Cable FFC 0.1" 14WAY A85 Disp - Pwr
L929AY 28 P35/P1 FMJ Amp Microcontroller Board Assembly
L926TX 29 115/230 VAC Toroid transformer
L927TX 29 100 VAC only Toroid transformer

BLACK CASE PARTS

E210AYB 2 FMJ P1/P35-3 Black Cover Assembly
HA4V06B 3 M Screw Torx M4x6MM Stainless Steel Black

E189AYB 1 FMJ Black P1 Fascia Complete Assembly

Made up of the following parts :-

8Q006 8Q006 FMJ Tact Button Spring
E083AY FMJ A32 Sub-Panel Assy
E199AYB Front Panel Assembly Black FMJ P1
E830MC Badge Metal Arcam FMJ
E847PM Lightpipe FMJ
E894PMB Button Power FMJ A32 Black
HL25AB HL25AB FMJ Tact Button Fastener
E933AY FMJ I/R Window Assy (STD. SCREENED)
HA3A04A M/C Pan Supa M3X4 Stzp

SILVER CASE PARTS

E210AY 2 FMJ P1/P35-3 Silver Cover Assembly
HA4V06S 3 M Screw Torx M4x6MM Stainless Steel Silver

E189AY 1 FMJ Silver P1 Fascia Complete Assembly

Made up of the following parts :-

8Q006 8Q006 FMJ Tact Button Spring
E083AY FMJ A32 Sub-Panel Assy
E199AY Front Panel Assembly Silver FMJ P1
E830MC Badge Metal Arcam FMJ
E847PM Lightpipe FMJ
E894PM Button Power FMJ A32 Silver
HL25AB HL25AB FMJ Tact Button Fastener
E933AY FMJ I/R Window Assy (STD. SCREENED)
HA3A04A M/C Pan Supa M3X4 Stzp

PACKAGING MATERIAL

E827PK Carton Printed FMJ
E828PK End Caps Pair FMJ A22 / P25 / DT26
E826PK Carton Plain FMJ
E967SL FMJ P1 Carton Label
SH139 Handbook FMJ C30/P35/P1 Multi
E888PM Blanking Plug For 4MM Binding Post

P1 Amplifier display cct board L929AY issue 2.0

Designator Part Description

C1 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C2 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C3 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C4 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C5 2N610 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 10UF 50V
C6 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
C7 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
C8 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
C9 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C10 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C11 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C12 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C13 2A410 Capacitor Ceramic 5mm Pitch 50V 10% 100nF
C14 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
CON1 8K7014A Con Series 2.54MM Horiz FFC 14WAY
CON2 8K7014A Con Series 2.54MM Horiz FFC 14WAY
D1 3A4148 Diode Small Signal 1N4148 DO-35 Package
D2 3A4148 Diode Small Signal 1N4148 DO-35 Package
IC1 L019AY Programmed HT48R30A-1 With Software For P35
IC2 5J7432 IC Quad 2 Input OR Gate 74HC32N
ITEM1-1 L929PB Blank PCB P35/P1 FMJ Amp Microcontroller Board
ITEM2-1 8S028N IC Skt 28PIN 0.3IN
LED1 3D001 LED 5mm Green SLR-56MGT32
LED2 3D001 LED 5mm Green SLR-56MGT32
LED3 3D006 LED 3mm Red/Green Tri-Colour L-93WEGW
LK1 1H000 Resistor Metal Film 0.25W 0R0
LK2 1H000 Resistor Metal Film 0.25W 0R0
R1 1H310 Resistor Metal Film 0.25W 1% 10K
R2 1H310 Resistor Metal Film 0.25W 1% 10K
R3 1H310 Resistor Metal Film 0.25W 1% 10K
R4 1H310 Resistor Metal Film 0.25W 1% 10K
R5 1H310 Resistor Metal Film 0.25W 1% 10K
R6 1H310 Resistor Metal Film 0.25W 1% 10K
R7 1H310 Resistor Metal Film 0.25W 1% 10K
R8 1H310 Resistor Metal Film 0.25W 1% 10K
R9 1H310 Resistor Metal Film 0.25W 1% 10K
R10 1H310 Resistor Metal Film 0.25W 1% 10K
R11 1H310 Resistor Metal Film 0.25W 1% 10K
R12 1H156 Resistor Metal Film 0.25W 1% 560R
R13 1H156 Resistor Metal Film 0.25W 1% 560R
R14 1H133 Resistor Metal Film 0.25W 1% 330R
R15 1H118 Resistor Metal Film 0.25W 1% 180R
R16 1H410 Resistor Metal Film 0.25W 1% 100K
R17 1H310 Resistor Metal Film 0.25W 1% 10K
R18 1H310 Resistor Metal Film 0.25W 1% 10K
R19 1H147 Resistor Metal Film 0.25W 1% 470R
R20 1H147 Resistor Metal Film 0.25W 1% 470R
R21 1H147 Resistor Metal Film 0.25W 1% 470R
R22 1H310 Resistor Metal Film 0.25W 1% 10K
R23 1H310 Resistor Metal Film 0.25W 1% 10K
R24 1H310 Resistor Metal Film 0.25W 1% 10K
R25 1H310 Resistor Metal Film 0.25W 1% 10K
R26 1H310 Resistor Metal Film 0.25W 1% 10K
SW1 A1504 Switch Tact 2-PIN Low Prof With Gnd Pin
SW2 A1504 Switch Tact 2-PIN Low Prof With Gnd Pin
SW3 A1504 Switch Tact 2-PIN Low Prof With Gnd Pin
TR1 4A556 Transistor BC556B TO92 Package
TR2 4A556 Transistor BC556B TO92 Package
TR3 4A556 Transistor BC556B TO92 Package
TR4 4A556 Transistor BC556B TO92 Package
TR5 4A546 Transistor BC546B TO92 Package
TR6 4A546 Transistor BC546B TO92 Package
TR7 4A546 Transistor BC546B TO92 Package
X1 7W005 Ceramic Resonator 4.00MHz

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

C1 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V
C2 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V
C3 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V
C4 2K233 Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V
C5 2D422 Capacitor X2 Boxed Polypropylene 22.5mm Pitch 275V 220NF
C6 2L110 Capacitor SM 0805 NPO Ceramic 5% 100V 100P
C7 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C8 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C9 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C10 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C11 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C12 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C13 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C14 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C15 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C16 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C17 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C18 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C19 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C20 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C21 2N833 Capacitor Radial Electrolytic Dia 16mm Pitch 7.5mm 3300UF 25V
C22 2N810D Capacitor Radial Electrolytic Dia 18mm Pitch 7.5mm 1000UF 100V
C23 2N810D Capacitor Radial Electrolytic Dia 18mm Pitch 7.5mm 1000UF 100V
C24 2P910AM Capacitor Radial Electrolytic Dia 40mm PCB Mount 10,000uF 71V
C25 2P910AM Capacitor Radial Electrolytic Dia 40mm PCB Mount 10,000uF 71V
C26 2P910AM Capacitor Radial Electrolytic Dia 40mm PCB Mount 10,000uF 71V
C27 2P910AM Capacitor Radial Electrolytic Dia 40mm PCB Mount 10,000uF 71V
C28 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C29 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C30 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C31 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C32 2N810C Capacitor Radial Electrolytic Dia 12.5mm Pitch 5mm 1000UF 35V
C33 2N810A Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 1000UF 10V
C34 2Z710F Capacitor Low Impedance Radial Electrolytic Dia 12.5mm Pitch 5mm 100UF 100V
C35 2Z710F Capacitor Low Impedance Radial Electrolytic Dia 12.5mm Pitch 5mm 100UF 100V
C36 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
C100 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C101 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C102 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C103 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C104 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C105 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C106 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C107 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C108 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
C109 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C110 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C111 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C112 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C113 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C114 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C115 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C116 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C117 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C118 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C119 2KA410 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 100N
C120 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C121 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C122 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C123 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C124 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

C125 2N647B Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 47UF 100V
C126 2DA210 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 1N0
C127 2P710AC Capacitor Radial Electrolytic Elna ROA Series 100UF 25V
C128 2P710AC Capacitor Radial Electrolytic Elna ROA Series 100UF 25V
C129 2DA147 Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P
C130 2P622P Capacitor Radial Electrolytic Oscon SP 22UF 20V
C131 2P622P Capacitor Radial Electrolytic Oscon SP 22UF 20V
C132 2P622P Capacitor Radial Electrolytic Oscon SP 22UF 20V
C133 2P622P Capacitor Radial Electrolytic Oscon SP 22UF 20V
C134 2P622P Capacitor Radial Electrolytic Oscon SP 22UF 20V
C135 2KB568 Capacitor Boxed Polyester 22.5mm Pitch 10% 63V 6U8
C136 2KA447 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 470N
C137 2JC310 Capacitor SM 0603 X7R Ceramic 10% 50V 10N
C138 2JC310 Capacitor SM 0603 X7R Ceramic 10% 50V 10N
C139 2D033W2 Capacitor Boxed Polyprop 5mm Pitch 250V 5% 33P
C140 2D033W2 Capacitor Boxed Polyprop 5mm Pitch 250V 5% 33P
C141 2N610 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 10UF 50V
C142 2N610 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 10UF 50V
C143 2N710 Capacitor Radial Electrolytic Dia 5mm Pitch 5mm 100UF 25V
C144 2C047B Capacitor SM 0805 NPO Ceramic 200V 5% 47PF
C145 2C047B Capacitor SM 0805 NPO Ceramic 200V 5% 47PF
C146 2C047B Capacitor SM 0805 NPO Ceramic 200V 5% 47PF
C147 2C047B Capacitor SM 0805 NPO Ceramic 200V 5% 47PF
C148 2V710 Capacitor Non-Polar Radial Electrolytic 100UF 16V
C149 2V710 Capacitor Non-Polar Radial Electrolytic 100UF 16V
C150 2KA347 Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 47N
C151 2J410 Capacitor SM 0805 X7R Ceramic 10% 50V 100N
CON1 8Q003 Con Cage Clamp 1WAY
CON2 8K2310 Con Minifit HCS 10WAY
CON3 8K2306 Con Minifit HCS 6WAY
CON4 8K7014 Con 2.54MM Vertical FFC 14WAY
CON100 8K3101 XLR PCB Male Neutr k NC3MBH-B
CON101 8K3001 XLR PCB Female Neutrik NC3FBH2-B
CON102 8K2402 Con CT Series Vertical 2WAY
CON103 8K6201 Con Single ROW Hdr 0.1IN Vertical 2WAY
D1 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D2 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D3 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D4 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D5 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D6 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D7 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D8 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D100 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D101 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D102 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D103 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D104 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D105 3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package
D106 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package
D107 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package
D108 3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package
D109 3BYV27 Diode SBYV27-200 DO-15 Package
D110 3BYV27 Diode SBYV27-200 DO-15 Package
D111 3B4003 Diode 1N4003 DO-41 Package
D112 3B4003 Diode 1N4003 DO-41 Package
DBR1 3BW02 Diode Bridge Rectifier W02G Plastic Package
DBR2 3BW02 Diode Bridge Rectifier W02G Plastic Package
DBR3 3BW02 Diode Bridge Rectifier W02G Plastic Package
DBR4 3BW02 Diode Bridge Rectifier W02G Plastic Package
DBR5 3BGBU8D Diode Bridge Rectifier GBU8D Plastic Package 8A 200V

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

DBR6 3BGBU8D Diode Bridge Rectifier GBU8D Plastic Package 8A 200V
DBR100 3BW02 Diode Bridge Rectifier W02G Plastic Package
DZ1 3CW34V7 Zener Diode 0.25W Surface Mount BZX84C4V7 SOT-23 Package
DZ100 3CW34V7 Zener Diode 0.25W Surface Mount BZX84C4V7 SOT-23 Package
DZ101 3CW34V7 Zener Diode 0.25W Surface Mount BZX84C4V7 SOT-23 Package
DZ102 3CW315V Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package
DZ103 3CW315V Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package
DZ104 3CW315V Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package
DZ105 3CW333V Zener Diode 0.25W Surface Mount BZX84C33V SOT-23 Package
DZ106 3CW333V Zener Diode 0.25W Surface Mount BZX84C33V SOT-23 Package
DZ107 3CW310V Zener Diode 0.25W Surface Mount BZX84C10V SOT-23 Package
FHLDR1 8S004 Fuseholder 20MM PCB
FHLDR2 8S004 Fuseholder 20MM PCB
FHLDR3 8S004 Fuseholder 20MM PCB
FHLDR4 8S004 Fuseholder 20MM PCB
FHLDR5 8S004 Fuseholder 20MM PCB
FHLDR6 8S004 Fuseholder 20MM PCB
FS1 C56263 Fuse Bussmann S506 T6.3A
FS2 C56263 Fuse Bussmann S506 T6.3A
FS3 C54132 Fuse Bussmann S504 T315mA
FS4 C54132 Fuse Bussmann S504 T315mA
FS5 C54132 Fuse Bussmann S504 T315mA
FS6 C54132 Fuse Bussmann S504 T315mA
HS1 F008 Heatsink TO-220 SW50-2 8.8 Deg C/W
IC100 5A2143 IC Balanced Line Receiver AD SSM2143S SO-8 Package
IC101 5B072D Opamp TL072CD SO-8 Package
ITEM1-1 F006 Clip For SW Profile Heatsink
ITEM2-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM3-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM4-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM5-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM6-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM7-1 F022 Fuseholder Cover For 20mm Fuseholder
ITEM8-1 L962PB Blank PCB P1 Amplifier Main Board
ITEM9-1 E802AP Pad Damping 15x6x3MM Sorbothane
ITEM9-2 E802AP Pad Damping 15x6x3MM Sorbothane
ITEM10-1 E826AP Pad Damping 7.5x6x3 Sorbothane
ITEM10-2 E826AP Pad Damping 7.5x6x3 Sorbothane
ITEM10-3 E826AP Pad Damping 7.5x6x3 Sorbothane
ITEM11-1 8M101 Earth Lead Assy 75MM
L1 7F004 Ferrite Bead SM1206 70R@100MHz
L100 7D002C Inductor AC 2u2 Self Bonded
LS100 8D420G Connector 4mm 4 Way Vertical
OPTO100 5T3Q66 Opto Isolator Quad PC3Q66Q
R1 1A010 Resistor 1206 Surface Mount 0.25W 1% 10R
R2 1KA515 Resistor Metal Glazed 0.5W 5% 1M5
R3 1A233 Resistor 1206 Surface Mount 0.25W 1% 3K3
R4 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R5 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R6 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R7 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R8 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R9 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R10 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R11 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R12 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R13 1A368 Resistor 1206 Surface Mount 0.25W 1% 68K
R14 1A368 Resistor 1206 Surface Mount 0.25W 1% 68K
R15 1A310 Resistor 1206 Surface Mount 0.25W 1% 10K
R16 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R17 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

R18 1A310 Resistor 1206 Surface Mount 0.25W 1% 10K
R19 1E310 Resistor Carbon Film 1W 5% 10K
R20 1E310 Resistor Carbon Film 1W 5% 10K
R100 1A010 Resistor 1206 Surface Mount 0.25W 1% 10R
R101 1A010 Resistor 1206 Surface Mount 0.25W 1% 10R
R102 1A268 Resistor 1206 Surface Mount 0.25W 1% 6K8
R103 1A268 Resistor 1206 Surface Mount 0.25W 1% 6K8
R104 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R105 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R106 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R107 1A133 Resistor 1206 Surface Mount 0.25W 1% 330R
R108 1A133 Resistor 1206 Surface Mount 0.25W 1% 330R
R109 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R110 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R111 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R112 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R113 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R114 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R115 1A110 Resistor 1206 Surface Mount 0.25W 1% 100R
R116 1A318 Resistor 1206 Surface Mount 0.25W 1% 18K
R117 1A318 Resistor 1206 Surface Mount 0.25W 1% 18K
R118 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7
R119 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7
R120 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7
R121 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7
R122 1A247 Resistor 1206 Surface Mount 0.25W 1% 4K7
R123 1H182 Resistor Metal Film 0.25W 1% 820R
R124 1H268 Resistor Metal Film 0.25W 1% 6K8
R125 1H268 Resistor Metal Film 0.25W 1% 6K8
R126 1H268 Resistor Metal Film 0.25W 1% 6K8
R127 1H268 Resistor Metal Film 0.25W 1% 6K8
R128 1H268 Resistor Metal Film 0.25W 1% 6K8
R129 1H110 Resistor Metal Film 0.25W 1% 100R
R130 1A312 Resistor 1206 Surface Mount 0.25W 1% 12K
R131 1A312 Resistor 1206 Surface Mount 0.25W 1% 12K
R132 1H322 Resistor Metal Film 0.25W 1% 22K
R133 1A047 Resistor 1206 Surface Mount 0.25W 1% 47R
R134 1A047 Resistor 1206 Surface Mount 0.25W 1% 47R
R135 1A047 Resistor 1206 Surface Mount 0.25W 1% 47R
R136 1A047 Resistor 1206 Surface Mount 0.25W 1% 47R
R137 1A000 Resistor 1206 Surface Mount 0.25W 1% 0R0
R138 1H215 Resistor Metal Film 0.25W 1% 1K5
R139 1H215 Resistor Metal Film 0.25W 1% 1K5
R140 1H215 Resistor Metal Film 0.25W 1% 1K5
R141 1H215 Resistor Metal Film 0.25W 1% 1K5
R142 1H022 Resistor Metal Film 0.25W 1% 22R
R143 1H022 Resistor Metal Film 0.25W 1% 22R
R144 1H218 Resistor Metal Film 0.25W 1% 1K8
R145 1H218 Resistor Metal Film 0.25W 1% 1K8
R146 1H218 Resistor Metal Film 0.25W 1% 1K8
R147 1H218 Resistor Metal Film 0.25W 1% 1K8
R148 1A510 Resistor 1206 Surface Mount 0.25W 1% 1M0
R149 1A268 Resistor 1206 Surface Mount 0.25W 1% 6K8
R150 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R151 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R152 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R153 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R154 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R155 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R156 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R157 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

R158 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R159 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R160 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R161 1A022 Resistor 1206 Surface Mount 0.25W 1% 22R
R162 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R163 1A210 Resistor 1206 Surface Mount 0.25W 1% 1K0
R164 1A022 Resistor 1206 Surface Mount 0.25W 1% 22R
R165 1A022 Resistor 1206 Surface Mount 0.25W 1% 22R
R166 1A212 Resistor 1206 Surface Mount 0.25W 1% 1K2
R167 1A212 Resistor 1206 Surface Mount 0.25W 1% 1K2
R168 1H415 Resistor Metal Film 0.25W 1% 150K
R169 1H415 Resistor Metal Film 0.25W 1% 150K
R170 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R171 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R172 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R173 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R174 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R175 1A115 Resistor 1206 Surface Mount 0.25W 1% 150R
R176 1A115 Resistor 1206 Surface Mount 0.25W 1% 150R
R177 1A115 Resistor 1206 Surface Mount 0.25W 1% 150R
R178 1A115 Resistor 1206 Surface Mount 0.25W 1% 150R
R179 1A127 Resistor 1206 Surface Mount 0.25W 1% 270R
R180 1A322 Resistor 1206 Surface Mount 0.25W 1% 22K
R181 1A310 Resistor 1206 Surface Mount 0.25W 1% 10K
R182 1A310 Resistor 1206 Surface Mount 0.25W 1% 10K
R183 1C010 Resistor Carbon Film 2W 5% 10R
R184 1C847 Resistor Carbon Film 2W 5% 4R7
R185 1A410 Resistor 1206 Surface Mount 0.25W 1% 100K
R186 1A412 Resistor 1206 Surface Mount 0.25W 1% 120K
R187 1A339 Resistor 1206 Surface Mount 0.25W 1% 39K
R188 1A318 Resistor 1206 Surface Mount 0.25W 1% 18K
R189 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R190 1A318 Resistor 1206 Surface Mount 0.25W 1% 18K
R191 1A222 Resistor 1206 Surface Mount 0.25W 1% 2K2
R192 1C047 Resistor Carbon Film 2W 5% 47R
REF100 5D431SM Voltage Reference Adjustable Zener Shunt LM431AIM3 SOT-23 Package
REF101 5D431SM Voltage Reference Adjustable Zener Shunt LM431AIM3 SOT-23 Package
REG1 5D7812 IC Voltage Regulator +12V L7812CV TO-220 Package
REG2 5D4940V5 IC Voltage Regulator +5V L4940V5 TO-220 Package LDO
RLY1 A219 Relay 2P2T 5V
RLY2 A222 Relay 1P2T 12V
RTH100 1T007 Thermistor Ptc SM 110 Degrees C
RV100 6F110 Preset H Mounting 100R Lin
SH1 E5402 Shield EMC IEC Inlet Mains
SKT1 8A001 Mains IEC Inlet 3PIN PCB Ins
SKT2 8D302 Con Jack 3.5mm Dual Mono
SKT3 8D302 Con Jack 3.5mm Dual Mono
SKT100 8D226 Phono Skt 2-WAY Vert Gold
SW1 A1404 Switch Slide Volt Sel
SW100 A1008 SW Push 2PCO Alps
SW101 A1008 SW Push 2PCO Alps
TR1 4B179 Transistor BD179 TO126 Package
TR2 4AFMMT497 Transistor FMMT497 SOT23 Package
TR3 4B1930 Transistor 2SA1930 TO220 Package
TR4 4AFMMT497 Transistor FMMT497 SOT23 Package
TR5 4AFMMT597 Transistor FMMT597 SOT23 Package
TR6 4B5171 Transistor 2SC5171 TO220 Package
TR7 4AFMMT497 Transistor FMMT497 SOT23 Package
TR8 4AFMMT497 Transistor FMMT497 SOT23 Package
TR9 4AFMMT497 Transistor FMMT497 SOT23 Package
TR10 4A849B Transistor BC849B SOT23 Package

P1 Amplifier main cct board L962AY issue 2.1

Designator Part Description

TR11 4D10KN Digital Transistor MMUN2211LT1 SOT23 Package
TR100 4AFMMT497 Transistor FMMT497 SOT23 Package
TR101 4AFMMT497 Transistor FMMT497 SOT23 Package
TR102 4AFMMT497 Transistor FMMT497 SOT23 Package
TR103 4AFMMT497 Transistor FMMT497 SOT23 Package
TR104 4AFMMT497 Transistor FMMT497 SOT23 Package
TR105 4AFMMT497 Transistor FMMT497 SOT23 Package
TR106 4AFMMT497 Transistor FMMT497 SOT23 Package
TR107 4AFMMT497 Transistor FMMT497 SOT23 Package
TR108 4AFMMT497 Transistor FMMT497 SOT23 Package
TR109 4AFMMT497 Transistor FMMT497 SOT23 Package
TR110 4AFMMT497 Transistor FMMT497 SOT23 Package
TR111 4AFMMT497 Transistor FMMT497 SOT23 Package
TR112 4A849B Transistor BC849B SOT23 Package
TR113 4D10KN Digital Transistor MMUN2211LT1 SOT23 Package
TR114 4AFMMT597 Transistor FMMT597 SOT23 Package
TR115 4AFMMT597 Transistor FMMT597 SOT23 Package
TR116 4AFMMT597 Transistor FMMT597 SOT23 Package
TR117 4AFMMT597 Transistor FMMT597 SOT23 Package
TR118 4AFMMT597 Transistor FMMT597 SOT23 Package
TR119 4AFMMT597 Transistor FMMT597 SOT23 Package
TR120 4AFMMT597 Transistor FMMT597 SOT23 Package
TR121 4AFMMT597 Transistor FMMT597 SOT23 Package
TR122 4B1740 Transistor 2SA1740 SOT-89 Package
TR123 4B1740 Transistor 2SA1740 SOT-89 Package
TR124 4B4548 Transistor 2SC4548 SOT-89
TR125 4B4548 Transistor 2SC4548 SOT-89
TR126 4CSAP15N Transistor SAP15NY
TR127 4CSAP15N Transistor SAP15NY
TR128 4CSAP15P Transistor SAP15PY
TR129 4CSAP15P Transistor SAP15PY
TR130 4D10KP Digital Transistor MMUN2111LT1 SOT23 Package
TR131 4D10KP Digital Transistor MMUN2111LT1 SOT23 Package
TR132 4A859B Transistor BC859B SOT23 Package
TX1 7A9301 115/230 vac only transformer 9V + 9V 3VA
TX1 L907TX 100 vac only transformer 9V + 9V 3VA

ARCAM

All parts can be ordered via [e-mail]

Pembroke Ave, Waterbeach, Cambridge, CB5 9PB, ENGLAND

TEL: [phone] FAX: [phone]