Arcam DiVA A65 User manual

A65/75
DiVA A65, A75 & P75
Amplifiers
Service Manual
ARCAM
ARCAM
Issue 1.0

Contents List
! Contents list
! Circuit description
! Service guide
! Circuit diagrams
! Component overlays
! Circuit board parts list
! General assembly parts list

A65/75/75P Circuit Description
PSU
In order get the output devices to turn fully on and achieve the
greatest efficiency, an auxiliary rail is formed from a charge pump
driven by the main AC outputs from the transformer. C304,305 &
D301,302 charge on alternate cycles. In the other cycle the charge
on C304,305 is pumped into C310,311 respectively. This creates a
voltage much greater than the standard rails, but with low regulation
and high ripple. This is then regulated to 38V via emitter followers
Q300,302,303,305 from a zener stabilized voltage (D304,305)
The Pre-amp ±15V supply comes from linear regulators Z300,301.
The transformer is a dual voltage unit, the required voltage being
selected by which fuse holder is fitted with the appropriate fuse. If an
alternative to 115V or 230V is required then a different transformer
is fitted. The secondary is centre tapped for the main rails, but a
separate winding is added for the uC supply.
The star ground point SP300 is not a component on the PCB and is
on the schematic only for layout purposes.
Pre-amp
The direct signal path (line in, tone controls defeated) consists of a
single op-amp gain stage, buffering the j-fet input multiplexers and
Tape Monitor and AV switches. The selected input is AC coupled to
the op-amp, the output is DC to the Pre-out, via a j-fet "pre-mute"
switch. This switch is controlled by the uC in such a way that when
ever the output relay changes state signal is removed from the power
amplifier (A65/75).
The MM phono stage (by passable A75 only, SW100) is opamp
based. The circuit is AC coupled to give RIAA/IEC low frequency
response. The cartridge is loaded by R100,101,C119,120. The 1kHz
gain is 56dB, and RIAA eq set by
R110,112,111,113,C127,129,128,130.
Each line input has static protection afforded by the back to back
diodes (e.g. D101,103), and RF filtering is set by R118,C134 etc.
The selected input is buffered for Tape output by Z104 set as a
follower. The output resistor is inside the feedback loop so to keep
the output impedance low and short protection is catered for.
C121,122 maintain stability into capacitive loads.
From the tape monitor switch (Z105) onwards the signal is AC
coupled (C151,152). From there the signal is fed to the tone controls.
These consist of two stages: Balance and buffer (Z160), and
Bass/Treble Z161. The output of this stage is again AC coupled.
Switch SW162 selects whether the tone adjusted signal or a direct
signal reaches the gain section. In the A75 Z164 can be used to
bypass the volume control when AV input is selected. This fixes the
gain to allow an external AV processor to control the volume setting.
The gain stage (Z163) has a gain of 2.2, and the same low impedance
output arrangement as the Tape output. The signal from this stage to
the Pre- amp outputs and the Power amp input is controlled by a
pre-mute (Z171). This removes thumps and clicks, and in the case of
the Power amp relay changing state, removes signal so arcing will
not take place.
Power Amplifier
The new topology is a high gain voltage feedback design, with a
bipolar output stage. Its signal path is designed to be fully
symmetrical, despite not having a symmetrical circuit (symmetrical
rail to rail). This is achieved with a new dual differential input gain
block, where the input differential sees a symmetrical active load
(Q600,601,700,701) before driving the second voltage amplification
stage (VAS) differential (Q603,604,703,704). This could be
described as two Wilson mirrors with their bases clamped together.
The second differential also has an active load of a more traditional
mirror (Q610,611,710,711), and this gives a push pull signal to the
input of the output stage, improving on the traditional single ended
current source of the often called "blameless" topology.
The input pair (Q606,607,618,619,706,707,718,719) are in a
Darlington configuration to lower input current offset which in turn
will lower DC offset at the output, as the impedances seen on the
input nodes are necessarily high for the wide bandwidth required.
The output stage is a simple bipolar darlington (Q614,615,714,715).
However, the devices used are Darlington devices with integral
diodes. This means the bias temperature compensation is part of the
output device enabling smaller number of devices, no extra devices
on the heatsink (vital for this mechanical layout) and more consistent
temperature compensation of bias. Also the resistors are also
integral, saving a large amount of PCB real estate and hand insertion
cost, while also able to be used as bias set test points and protection
sensing.
Due to the decreased efficiency of this type of output stage over the
previous bootstrapped Mosfet output, a separate set of rails is
required for the VAS stage in order to saturate the output transistors.
The operation of this is outlined in the Power supply section.
However, these rails are individually regulated for each channel to
decrease power supply crosstalk.
The protection of the output stage is taken care of by a proprietary IC
(Z101). This takes care of the switch on delay (R150,C149), DC
offset (R102,103,C147), Thermal trip (TH100), and safe operating
area.
The safe operating area is monitored by a network which
compensates for the voltage across the output devices, current
through them, and duration of power (R627,606,625,605,C617 &
symmetrical associated components) and this is sent to the protection
IC via (Q605,612,613,616,617,712,713,716,717).
The output of the protection IC is sent to the micro controller (uC) to
signal the output relay (RLY1) status. Also, for output muting
purposes, the uC can switch the relay via Q100.
Input Selection
The uC controls the operation of the unit. IR commands are received
from RX900 on a break-off PCB found on the front panel and fed via
LK900/LK903 3-way ribbon. On power on/off the current state of
the pre-amp switching stored in an EEPROM Z906. The input
switching is 5V logic level and is direct from the uC to the DPDT
analogue switches in the case of Tape Monitor (Z105), AV
(Z164,A75 only), Pre-mute (Z171) and Mute Q100. The source
selector is achieved by 8 way analogue multiplexors (Z102,103) and
the control signals are decoded from the uC from MUX1,2,3 by
Z907 which also drives the appropriate front panel LED. The input
selection is set by the remote control or the rotary encoder on the
front panel display PCB. Tape monitor and AV mode(A75 only) is
set by SW900.
Volume Control
The volume control is a motorized manual type, where the signals
are routed through the 8-way ribbon LK189. The motor drive comes
from Z905, which is a logic level controllable motor driver. It has its
own unregulated PSU (D907,C920),and the speed of the volume
knob is dictated by the REF pin. The circuit (Q900,R905,901,C901)
allows the speed to vary from just above stall to full as the volume
control button is depressed on the remote.
SIM Module
The connector PL161 (P75 only) allows the fitting of the ARCAM
SIM module. In order to allow this to operate LK172 & LK173 must
be removed. This will allow 12V trigger signals to operate the P75.
Headphones
The Speaker outputs (SK600,700) are connected to the headphone
socket (SK162) via an 8-way ribbon LK170,171. The output is
attenuated by a resistor network R161,162,236,237. The Relay drive
is fed through the headphone socket's switch (HPSW1,2) so that
when headphones are inserted the speakers are disconnected. Switch
SW163 allows the separate switching of the second speaker
terminals on SK600,700.

A65, A75 & P75 Service Guide
Fault diagnostics
Fault Action
No power Check mains fuse
Check transformer connections
Check power supply rails
Stuck in protection Check power supply rails
Check protection circuit voltages
Check for dry joints on o/p devices
Intermittent audio on one channel Check for dry joints around o/p
devices
Fails to respond to commands Check supply to remote circuit
Check IC Z900
Check remote flex foil cable
Check for dry joints on selector pcb
Volume control rubs on front panel Pull knob out from fascia
Audio crackles on o/p Check for component break down
using hot air gun & freezer spray
Check transformer connections
Power supply test points
Position Voltage
LK125 +37 volts DC
LK126 -37 volts DC
LK271 or black speaker terminal 0 volts
LK303 +15 volts DC
LK301 - 15 volts DC
Q300 emitter +38 volts DC
Q304 emitter +38 volts DC
Q302 emitter -38 volts DC
Q305 emitter -38 volts DC
D910 emitter +5 volts DC remote supply
IQ settings
Model IQ setting Comments - (22/01/02)
A65 37mV
A75 37mV
P75 37mV
A85 12mV Set for 8.5mV cold, reset for 12mV when warm
P85 12mV Set for 8.5mV cold, reset for 12mV when warm
A65 plus 12 to 15mV
A75 plus 12 to 15mV
P75 plus 12 to 15mV
Hints & tips
! To isolate a fault between pre and power stage remove C602 (left channel) or C702 (right
channel).
! Always check and re-solder o/p device SAP15N and SAP15P pin connections.
! Replace Z900 IC if software version is below version 3 ( note version 82 is also ok ).
! Make sure R127 is not touching LK130.
! When replacing the top cover with a new top it may be necessary to re-drill the fixing holes.

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G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C1_5.0.prj
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C1
JAG
4-Apr-2001
INITIALS
Date Printed 1 7Sheet of
Notes:
-
-
PWRLEFT
PROTECTION
A1
SP2_SEND_L
SP2_RETN_L
OP_L
A1
LEFT CHANNEL
L881C5_5.0.SCH
ACLT1
MUTE AVCONTROL
TAPECONTROL
MUX1
MUX2
MUX3
PREMUTE
PROT SENSE
REMOTE CONTROL
L881C7_5.0.SCH
SELOPR
SELOPL
MUX1 MUX2 MUX3
TAPECONTROL
ACSENSE
PROT_OP_L
PROT_OP_R
PROTECTION MUTE
HPSW2
HPSW1
TAPOL
TAPOR
PROT SENSE
PHONO & INPUTS
L881C3_5.0.SCH
ACSENSE
ACLT1
POWER SUPPLY
L881C2_5.0.SCH
PWRRIGHT
A1
SP2_RETN_R
OP_R
SP2_SEND_R A1
RIGHT CHANNEL
L881C6_5.0.SCH
PWRLEFT
PWRRIGHT
SELOPR
SELOPL
HPSW2
AVCONTROL
HPSW1
SP2_SEND_L
SP2_RETN_L
OP_L
OP_R
SP2_SEND_R
SP2_RETN_R
PREMUTE
TAPOR
TAPOL
PROT_OP_R PROT_OP_L
TONE CONTROL
L881C4_5.0.SCH
MASTER CIRCUIT FOR L881 PCB JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C5_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C5
JAG
4-Apr-2001
INITIALS
Date Printed 5 7Sheet of
Notes:
-
-
Q600
BC556B Q601
BC556B
Q604
2SA970GR
Q606
BC546B Q607
BC546B
R617
680R MF
R619
10K MF
R618
10K MF
R613
47R MF R614 47R MF
R612
100K MF
R600
1K0 MF
PWRLEFT
Q611
2SC2240GR Q610
2SC2240GR
R620
10K MF
Q603
2SA970GR
Q608
BC546B
Q609
BC546B
C613
100N PE
C612
100N PE
+C601
100U EL 100V
+
C600
100U EL 100V
0V_HF
+C616
10U EL
R631
2R2 CF
R630
4R7 W2 CF
C619
100N PC
D603
1N4003F
+37V
-37V
C621
470P CD
RLY1A
RLY G5Z-2A-E
C620
470P CD
C622
1N0 CD
CHASS
SK600C
CAMCON_G
Bot+
Bot-
SK600B
CAMCON_G
Top+
Top-
SK600A
CAMCON_G
SPLD600
SPLS600
PD6
OP_L
SP2_SEND_L
SP2_RETN_L
RV600
100R PSET
R616
2K7 MF
R611
100K MF
C603
100P PPW
0V_SIG
0V_HF
0V_SIG
0V_HF
C610
100N PE
Q612
2SC2240GR
R627
430R MF
R606
100R MF
R605
100R MF
R625
6K8 MF
R622
10K MF
R621
680R MF
R629
47K MF
+C617
10U EL
Q605
BC556B
C611
100N PE
A1
PROTECTION
D604
1N4003F
R628
430R MF
R626
6K8 MF
+C618
10U EL
R608
100R MF
R607
100R MF
A1
D605
1N4148
D606
1N4148
0V_LS_L
0V_LS_L
Q602
BC556B
R615
47R MF
R601
100R MF R602 100R MF
R603
100R MF R604 100R MF
HS600
E81801-75
HS601
E81801-75
HS602
E81801-75
HS603
E81801-75
SPLE600
Right Channel Power Amplifier
Q614
SAP15N
Q615
SAP15P
D600
4V7 400MW
C615
100N PE
C614
100N PE
0V_HF
0V_HF
0V_HF
0V_HF
Q616
2SA970GR
D601
ZENER 400MW 27V
D602
ZENER 400MW 27V R610
100R MF
R609
100R MF
R623
10K MF
Q613
BC546B
R624
10K MF
C608
100P PPW
C607 100P PPW
Q619
BC546B
Q618
BC546B
R633
12K MF
R632
12K MF
+
C602
22U SILMIC 2
+
C605
100U SILMIC 2
+38V_L
-38V_L
C604
100P PPW
0V_LS_L
Bias-L +
Bias-L -
21mm x 32mm
SELF ADHESIVE
E852MC
Q2 PAD
SP600
Q2-PAD-SAP
21mm x 32mm
SELF ADHESIVE
E852MC
Q2 PAD
SP601
Q2-PAD-SAP
C609
22N CD
CL600
E856MC
CL601
E856MC
JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
Q617
ZTX653
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes& change l600 to 7D002C 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
L600
2U2H LAC SMALL
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C7_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C7
JAG
4-Apr-2001
INITIALS
Date Printed 7 7Sheet of
Notes:
WARNING SAFETY CRITICAL COMPONENT
REPLACE WITH IDENTICAL PART
-
-
REMOTE CONTROL
uC & Volume Drive
3
2
1
+5V
O/P
GND Case
RX900
SBX1610-52
C912
10N CD
C900
10N CD
R900
1R0 FU D906
1N4003F
D907
1N4003F +C920
1M0 25V
C913
10N CD
MOTE900
P900
+5v
VOLUME DRIVEMOTOR DRIVER
+5V
GND 1
MD1 2
CC1
3
REF
4
MC1
5
MC2
6
VCC1 7 VCC2 8
CC2
9MD2 10
Z905
BA6109
1 2
VOLMOT900
1Y271
1
3
2
LK900
L856CA
REMOTE SENSOR SNAP OFF BOARD
ACLT1
MUTE
MUX1
MUX2
MUX3
AVCONTROL
TAPECONTROL
R915
220R MF
PB5
1PB4
2PA3
3PA2
4PA1
5PA0
6PB3
7PB2
8PB1
9PB0
10 VSS
11 (TMR)/INT
12 PC0
13 PC1
14 PC2 15
PC3 16
PC4 17
PC5 18
RES 19
VDD 20
OSC1 21
OSC2 22
PA7 23
PA6 24
PA5 25
PA4 26
PB7 27
PB6 28
Z900
HT48R30 28-DIP-B-0
A0
1A1 2A2 3
VSS
4
SDA 5
SCL 6
WP 7
VDD 8
Z906
24C01 C917
100N CD
X900
CST4.00
C918
100N CD
+C914
220U EL
+5v
+5v
+5v
C919
100N CD
1 2 3
SW900A
2PCO_NON_LAT
4 5 6
SW900B
2PCO_NON_LAT
R912
100K MF
+C921
10U EL
D910
1N4148
R913
10K MF
+5v
+5V
R914
4K7 MF
0V_DIG
0V_DIG
0V_DIG
0V_DIG
0V_DIG
0V_DIG 0V_DIG
0V_DIG
0V_DIG
0V_DIG
0V_DIG
0V_DIG
0V_DIG
X0
13 X1
14 X2
15 X3
12 X4
1X5
5X6
2X7
4
INH
6A
11 B
10 C
9
VEE
7
X3
Z907A
74HC4051
VDD 16
GND
8
Z907B
74HC4051
R904
10R MF
+C915
100U EL
PREMUTE
0V_DIG
+5V
MOTSUP900
VOLM901
VOLM900
REMO900
C916
100N CD
1
2
3
LK903
3WAY CABLE HOLDER
D911
1N4148
1 2 3 4 5 6 7 8 9
10
SK900
FFC10V
1 2
LK901
10MM LINK
R902
100R MF
R903
100R MF
0V_DIG
0V_DIG
PROT SENSE
Disp A
Disp B
Disp C
Disp D
Disp E
Disp F
Disp G
Disp H
Disp I
R901
12K MF
Q900
BC556B
+5v
R905
33K MF
+
C901 100U EL
JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
D908
ZENER 5V1 400MW
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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Filename ECO No. DESCRIPTION OF CHANGE
G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C3_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C3
JAG
4-Apr-2001
INITIALS
Date Printed 3 7Sheet of
Notes:
3
21
Z100A
NE5532
C119 100P PP
R100 47K MF
R108
470R MF
C124
47P CD
+
C125
22U EL
R110
680K MF
R112
56K MF
C127
4N7 PP
C129
1N3 PP
C120
100P PP
R101 47K MF
R109 470R MF
C123
47P CD
+
C126
22U EL
R111
680K MF
R113
56K MF
C128
4N7 PP
C130
1N3 PP
1 2 3
SW100A
4PCO
4 5 6
SW100B
4PCO
7 8 9
SW100C
4PCO
10 11 12
SW100D
4PCO
5
67
Z100B
NE5532
-15V
+15V
CD
TUNER
VCR
AV/DVD
TAPE IN
TAPE OUT
EMC
1
N
F
SK100A
PHONO4G
BOT 5
6
TOP 4
N
F
SK100B
PHONO4G
EMC
1
N
F
SK103A
PHONO4G
N
F
SK103B
PHONO4G
EMC
1
N
F
SK102A
PHONO4G
N
F
SK102B
PHONO4G
EMC
1
N
F
SK101A
PHONO4G
84
Z100C
NE5532
Phono Stage & Input Selection
X0
4X1
5X2
6X3
7X4
12 X5
11 X6
10 X7
9
EN
2A0
1A1
16 A2
15
V-
3
D8
GND
14
V+ 13
Z102
DG408DJ
X0
4X1
5X2
6X3
7X4
12 X5
11 X6
10 X7
9
EN
2A0
1A1
16 A2
15
V-
3
D8
GND
14
V+ 13
Z103
DG408DJ
D104
1N4148
D106
1N4148
D105
1N4148
D107
1N4148
D108
1N4148
D112
1N4148
D113
1N4148
D109
1N4148
D114
1N4148
D110
1N4148
D115
1N4148
D111
1N4148
D124
1N4148
D120
1N4148
D121
1N4148
D125
1N4148
D122
1N4148
D126
1N4148
D123
1N4148
D127
1N4148
D101
1N4148
D103
1N4148
D100
1N4148
D102
1N4148
R118
1K0 MF
R119
1K0 MF
R122
1K0 MF
R123
1K0 MF
R124
1K0 MF
R125
1K0 MF
R126
1K0 MF
R127
1K0 MF
R128
1K0 MF
R121
1K0 MF
R130
100K MF
R131
100K MF
R133
100K MF
R134
100K MF
R135
100K MF
R136
100K MF
R137
100K MF
R142
100K MF
R143
100K MF
R144
100K MF
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
+15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
-15v
SEL1
1
S2 14
D1
2
V+ 13
S1
3
S3 11
V-
4
GND
5VL 12
S4
6
D3 10 D4
7
SEL3 9
D2 15
SEL4
8
SEL2 16
Z105
DG413DJ
VCROL
VCROR
TUNOL
TUNOR
CDOL
CDOR
DVDOL
DVDOR
TAPEOL
TAPEOR
AUXOL
VCROL
TUNOL
CDOL
DVDOL
AUXOR
VCROR
TUNOR
CDOR
DVDOR
TAPECONTROL
MUX1
MUX2
MUX3
MUX1
MUX2
MUX3
+5v
+5v
+15v
+15v
+15v
-15v
-15v
-15v
TAPECONTROL
R120
1K0 MF
R117
1K0 MF R129
100K MF
R132
100K MF
AUXOL
AUXOR
TAPEOL
TAPEOR
C134
470P PPW
C144
470P PPW
C143
470P PPW
C142
470P PPW
C141
470P PPW
C140
470P PPW
C139
470P PPW
C138
470P PPW
C137
470P PPW
C135
470P PPW
C136
470P PPW
C133
470P PPW
+5v
R154
47R MF
R155
47R MF
C122
100P PP
C121
100P PP
D116
1N4148
D118
1N4148
D117
1N4148
D119
1N4148-15v
-15v
+15v
+15v
+15v
+15v
+15v
-15v
-15v
-15v
5
67
Z104B
TL072
3
21
Z104A
TL072
84
Z104C
TL072
SELOPL
SELOPR
R140
100K MF
R141
100K MF
MUX3
MUX2
MUX1
TAPECONTROL
+15V
-15V
RLY1C
RLY G5Z-2A-E
PWR 1
IN1
2
IN2
3
0V
4
V-
5
O6
FB
7
RC 8
V+ 9
Z101
TA7317P
R105
47K MF
R103
47K MF
R102
47K MF
R104
47K MF
+
C148
1U0 EL
R149
100K MF
D128
1N4003F
R106
47K MF
Q100
2SC2240GR
R153
1K0 1W CF
D130
1N4003F
R145
10K MF
R150
100K MF
+
C149
100U EL
+37V
R151
18K MF
-37V
R152
33K MF
R107
47K MF
D129
1N4003F
R147
2K7 1W CF
+37V
R146
2K7 1W CF
R
G
LED100
LED RED/GRN 3MM D131
5V6 400MW
1
3
2
LK100
L856CA
R148
470R FU
ACSENSE
PROT_OP_L
HPSW1
MUTEPROT_OP_R
C112
100N CD
C113
100N CD
C109
100N CD
C114
100N CD
C110
100N CD
C118
100N CD
C107
100N CD
C108
100N CD
C101
100N CD
C102
100N CD
+C145
10U EL
+C146
10U EL
C115
100N CD
C116
100N CD
R139
100K MF
R138
100K MF
PROTECTION
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG 0V_SIG
0V_SIG
0V_SIG
0V_SIG 0V_SIG
0V_SIG
0V_SIG
0V_SIG 0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_HF 0V_HF
0V_HF
0V_HF
0V_HF
0V_HF
0V_SIG
0V_SIG
R114
8K2 MF
R115
8K2 MF
R116
18K MF
+
C150
1U0 EL
HPSW2
TAPECONTROL
MUX1
MUX2
MUX3
C147
100U NP
CDL
CDR
TUNL
TUNR
VCRL
VCRR
DVDL
TAPL
TAPR
TAPOL
TAPOR
TAPOL
TAPOR
PHINL
PHINR
DVDR
1
2
3
LK100A
3WAY CABLE HOLDER
+
C151
100U SILMIC 2
+
C152
100U SILMIC 2
R157
100K MF
R156
1K5 MF
C153
10N CD
TH100
PTH90DEG
D132
1N4148 PROT SENSE
1 2
LK101
10MM LINK
1 2
LK102
10MM LINK
1 2
LK104
10MM LINK
1 2
LK103
10MM LINK
C154
100N PE
Therm
AC Det
Prot
RC
+15v
-15v
D134
5V6 400MW
C117
470P CD
0V_HF
R158
47K MF
JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
+
C131
22U EL
+
C132
22U EL
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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A
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D
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DRAWING NO.
23425
DRAWING TITLE
Drawn by:
DATE
Filename ECO No. DESCRIPTION OF CHANGE
G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C2_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C2
JAG
4-Apr-2001
INITIALS
Date Printed 2 7Sheet of
Notes:
L
N E
NEL
SK300
IEC3
FS300
AS1A25
+
C308
10M EL 50V
+
C309
10M EL 50V
C306
100N PC
C307
100N PC
+300
-300
+15V
-15V
+37V
-37V
SW300B
A1007
SW300A
A1007
SELECT VOLTAGE
BY FITTING FS201
OR FS202
MAINS INPUT
MAINS SWITCH
FIT ONLY ONE FUSE
Chassis Earth Point,
Use correct screw and washer.
R300
100R MF
T300
T301
PD300
TOOLING
FS301
AS2A5_115V
Blue
1Dark Grey
2Orange
3
SK301
CAGECLAMP3
Green
1SK302
CAGECLAMP1
Grey 1
Grey 2
SK303
CAGECLAMP2
Orange 1
Blue 2
Orange 3
SK304
CAGECLAMP3A
GREEN300
OR300
OR301
BLUE301
BLUE300
POWER SUPPLY
ACSENSE
ACLT1
0V_LS_L
0V_SIG
0V_LS_R
C301
3N3 MAINS
C300
3N3 MAINS
C302
3N3 MAINS
0V_PSU
0V_SIG
0V_DIG
0V_DIG
0V_HF
PSUP300
NSUP300
MAINS_N300
MAINS_E300
MAINS_L300
0V_HF
WARNING SAFETY CRITICAL COMPONENT
REPLACE WITH IDENTICAL PART
PD301
TOOLING PD302 TOOLING PD304 TOOLING PD305 TOOLING Y300 TX WIRE CLIP
PD311
TARGET1 PD312 TARGET1 Y301
TX WIRE CLIP
PD306
TOOLING PD307 TOOLING
C303
1N0 CD
Photo Strip
PS300
PHOTO_STRIP
Spare Fuse Clip
EL300
FUSE CLIP
PD303
TOOLING PD308 TOOLING PD309 TOOLING PD310 TOOLING
Paper Marker
A1 Horizontal
DD302
DD_A1H
CEM1, 2 OZ Cu
PCB MATERIAL
DD300
CEM1_20Z
0V_DIG
PCB
PCB1
L881PB_5
+1
~2
-
4
~
3
BR300
BRGBU8D
Q300
BC546B
Q302
BC556B
D303
1N4003F
D300
1N4003F
D301
1N4003F
D302
1N4003F
+C310
100U EL 100V
+C311
100U EL 100V
D304
ZENER 500MW 39V
D305
ZENER 500MW 39V
+C312
220U EL 50V
+C313
220U EL 50V
+
C304
47U EL 100V
+
C305
47U EL 100V
R301
4K7 MF
R302
4K7 MF
+38V_R
-38V_R
Q304
BC546B
Q305
BC556B
+38V_L
-38V_L
R311
10R FU
R312
10R FU
AC
+38V_R +37V_L
-37V_R -37V_L
LK1
LINK10NP
LK6
LINK10NP
LK11
LINK10NP
LK16
LINK10NP
LK21
LINK10NP
LK26
LINK10NP
LK31
LINK10NP
LK36
LINK10NP
LK41
LINK10NP
LK46
LINK10NP
LK51
LINK10NP
LK56
LINK10NP
LK61
LINK10NP
LK66
LINK10NP
LK71
LINK10NP
LK96
LINK10NP
LK76
LINK10NP
LK81
LINK10NP
LK86
LINK10NP
LK91
LINK10NP
LK2
LINK10NP
LK7
LINK10NP
LK12
LINK10NP
LK17
LINK10NP
LK22
LINK10NP
LK27
LINK10NP
LK32
LINK10NP
LK37
LINK10NP
LK42
LINK10NP
LK47
LINK10NP
LK52
LINK10NP
LK57
LINK10NP
LK62
LINK10NP
LK67
LINK10NP
LK72
LINK10NP
LK97
LINK10NP
LK77
LINK10NP
LK82
LINK10NP
LK87
LINK15NP
LK92
LINK10NP
LK3
LINK10NP
LK8
LINK10NP
LK13
LINK10NP
LK18
LINK10NP
LK23
LINK10NP
LK33
LINK10NP
LK38
LINK10NP
LK43
LINK10NP
LK48
LINK10NP
LK53
LINK10NP
LK58
LINK10NP
LK63
LINK10NP
LK68
LINK10NP
LK73
LINK10NP
LK98
LINK10NP
LK78
LINK10NP
LK83
LINK10NP
LK88
LINK10NP
LK93
LINK10NP
LK4
LINK10NP
LK9
LINK10NP
LK14
LINK10NP
LK19
LINK10NP
LK24
LINK10NP
LK29
LINK10NP
LK34
LINK10NP
LK39
LINK10NP
LK44
LINK10NP
LK49
LINK10NP
LK54
LINK10NP
LK59
LINK10NP
LK64
LINK10NP
LK69
LINK10NP
LK74
LINK10NP
LK99
LINK10NP
LK79
LINK10NP
LK84
LINK10NP
LK89
LINK10NP
LK94
LINK10NP
LK5
LINK10NP
LK10
LINK10NP
LK15
LINK10NP
LK20
LINK10NP
LK25
LINK10NP
LK30
LINK10NP
LK35
LINK10NP
LK40
LINK10NP
LK45
LINK10NP
LK50
LINK10NP
LK55
LINK10NP
LK60
LINK10NP
LK65
LINK10NP
LK70
LINK10NP
LK75
LINK10NP
LK80
LINK10NP
LK85
LINK10NP
LK90
LINK10NP
LK95
LINK10NP
LK106
LINK10NP
LK111
LINK10NP
LK116
LINK10NP
LK121
LINK10NP
LK126
LINK17.5NP
LK131
LINK10NP
LK136
LINK10NP
LK141
LINK10NP
LK151
LINK10NP
LK156
LINK10NP
LK161
LINK10NP
LK166
LINK10NP
LK196
LINK10NP
LK181
LINK10NP
LK186
LINK10NP
LK191
LINK10NP
LK107
LINK10NP
LK112
LINK10NP
LK117
LINK10NP
LK122
LINK10NP
LK127
LINK10NP
LK132
LINK10NP
LK137
LINK10NP
LK142
LINK10NP
LK152
LINK10NP
LK157
LINK10NP
LK162
LINK10NP
LK167
LINK10NP
LK197
LINK10NP
LK182
LINK10NP
LK187
LINK10NP
LK192
LINK10NP
LK108
LINK10NP
LK113
LINK10NP
LK118
LINK10NP
LK123
LINK10NP
LK128
LINK10NP
LK133
LINK10NP
LK138
LINK10NP
LK143
LINK10NP
LK148
LINK10NP
LK153
LINK10NP
LK158
LINK10NP
LK163
LINK10NP
LK198
LINK10NP
LK178
LINK10NP
LK183
LINK10NP
LK188
LINK10NP
LK193
LINK10NP
LK109
LINK10NP
LK114
LINK10NP
LK119
LINK10NP
LK124
LINK10NP
LK129
LINK10NP
LK134
LINK10NP
LK139
LINK10NP
LK149
LINK10NP
LK154
LINK10NP
LK159
LINK10NP
LK164
LINK10NP
LK199
LINK10NP
LK179
LINK10NP
LK189
LINK10NP
LK194
LINK10NP
LK105
LINK10NP
LK110
LINK10NP
LK115
LINK10NP
LK120
LINK10NP
LK130
LINK10NP
LK135
LINK10NP
LK140
LINK10NP
LK145
LINK10NP
LK150
LINK10NP
LK155
LINK10NP
LK160
LINK10NP
LK165
LINK10NP
LK180
LINK10NP
LK185
LINK10NP
LK190
LINK10NP
LK195
LINK10NP
LK201
LINK10NP
LK202
LINK10NP
LK203
LINK10NP
LK204
LINK10NP
LK205
LINK10NP
LK206
LINK10NP
LK207
LINK10NP
LK208
LINK10NP
LK209
LINK10NP
LK210
LINK10NP
LK211
LINK10NP
LK212
LINK15NP
LK213
LINK15NP
LK214
LINK15NP
LK215
LINK15NP
LK216
LINK15NP
LK217
LINK15NP
LK218
LINK15NP
LK219
LINK15NP
LK220
LINK20NP
LK221
LINK20NP
LK222
LINK20NP
LK223
LINK20NP
LK224
LINK20NP
LK225
LINK20NP
LK226
LINK20NP
LK227
LINK20NP
LK228
LINK20NP
LK229
LINK20NP
LK246
LINK20NP
LK247
LINK20NP
LK248
LINK20NP
LK249
LINK20NP
LK250
LINK20NP
LK251
LINK20NP
LK254
LINK20NP
LK230
LINK15NP
LK231
LINK15NP
LK232
LINK15NP
LK233
LINK15NP
LK234
LINK15NP
LK235
LINK15NP
LK236
LINK15NP
LK237
LINK15NP
LK238
LINK15NP
LK240
LINK15NP
LK241
LINK15NP
LK242
LINK15NP
LK243
LINK15NP
LK244
LINK15NP
LK245
LINK15NP
LK265
LINK15NP
LK257
LINK15NP
LK256
LINK15NP
LK267
LINK17.5NP
LK270
LINK17.5NP
LK268
LINK17.5NP
LK271
LINK15NP
LK269
LINK15NP
LK272
LINK17.5NP
LK277
LINK10NP
LK278
LINK10NP
LK279
LINK10NP
LK280
LINK10NP
LK281
LINK10NP
LK252
LINK10NP
LK253
LINK10NP
LK255
LINK10NP
Vin
I
GND G
Vout O
Z301
7905
+C315
1U0 EL
+C316
1U0 EL
0V_SIG
C317
100N CD C319
100N CD
C320
100N CDC318
100N CD
0V_HF0V_PSU
LK300
LINK10NP
LK301
LINK10NP
LK303
LINK10NP
LK304
LINK10NP
C314
100P CD
230V
115V
9Vac
SCREEN
TX300
L816TX
SP300
STAR POINT 8
CS1
220N X2 CLASS
Update Box
UD1
UPDATE_BOX
D306
10V 400MW
D307
10V 400MW
Vin
I
GND
G
Vout O
Z300
7805
EARTH LEAD
8M101
EL
EARTH LEAD
+C106
1U0 EL
+C105
1U0 EL
JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
DO NOT USE THE FOLLOWING NUMBERS AS LINKS - THE DESIGNATORS ARE ALREADY USED ON OTHER PARTS OF THIS CCT!
LK100, LK101, LK102, LK103, LK104, LK168, LK170, LK171, LK172, LK173, LK174, LK175, LK176, LK177
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
LK28
LK08NP
LK125
LINK20NP
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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DRAWING TITLE
Drawn by:
DATE
Filename ECO No. DESCRIPTION OF CHANGE
G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C6_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C6
JAG
4-Apr-2001
INITIALS
Date Printed 6 7Sheet of
Notes:
-
-
Q700
BC556B Q701
BC556B
Q704
2SA970GR
Q706
BC546B Q707
BC546B
R717
680R MF
R719
10K MF
R718
10K MF
R713
47R MF R714 47R MF
R712
100K MF
R700
1K0 MF
Q711
2SC2240GR
Q710
2SC2240GR
R720
10K MF
Q703
2SA970GR
Q708
BC546B
Q709
BC546B
C713
100N PE
C712
100N PE
+C701
100U EL 100V
+
C700
100U EL 100V
0V_HF
+C716
10U EL
L700
2U2H LAC SMALL
R731
2R2 CF
R730
4R7 W2 CF
C719
100N PC
D703
1N4003F
+37V
-37V
C721
470P CD
RLY1B
RLY G5Z-2A-E
C720
470P CD
C722
1N0 CD
Top+
Top-
SK700A
CAMCON_G
Bot+
Bot-
SK700B
CAMCON_G
CHASS
SK700C
CAMCON_G
SPLD700
SPLS700
PD6
OP_R
SP2_RETN_R
RV700
100R PSET
R716
2K7 MF
R711
100K MF
C703
100P PPW
0V_SIG
0V_HF
0V_SIG
0V_HF
C710
100N PE
Q712
2SC2240GR
R727
430R MF
R706
100R MF
R705
100R MF
R725
6K8 MF
+C717
10U EL
C711
100N PE
A1
D704
1N4003F
R728
430R MF
R726
6K8 MF
+C718
10U EL
R708
100R MF
R707
100R MF
A1
D705
1N4148
D706
1N4148
0V_LS_R
0V_LS_R
Q702
BC556B
R715
47R MF
R701
100R MF R702 100R MF
R703
100R MF R704 100R MF
SPLE700
Q714
SAP15N
Q715
SAP15P
D700
4V7 400MW
C715
100N PE
C714
100N PE
0V_HF
0V_HF
0V_HF
0V_HF
Q716
2SA970GR
D701
ZENER 400MW 27V
D702
ZENER 400MW 27V R710
100R MF
R709
100R MF
R723
10K MF
Q713
BC546B
R724
10K MF
C708
100P PPW
C707 100P PPW
Q719
BC546B
Q718
BC546B
R733
12K MF
R732
12K MF
+
C702
22U SILMIC 2
+
C705
100U SILMIC 2
+38V_R
-38V_R
C704
100P PPW
SP2_SEND_R
PWRRIGHT
0V_LS_R
Bias-R +
Bias-R -
21mm x 32mm
SELF ADHESIVE
E852MC
Q2 PAD
SP700
Q2-PAD-SAP
21mm x 32mm
SELF ADHESIVE
E852MC
Q2 PAD
SP701
Q2-PAD-SAP
Left Channel Power Amplifier JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
Q717
ZTX653
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes & change L700 to 7D002C 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
MGM 2/2/01 PCB UP ISSUED NO CHANGE TO CTS 4.001_1002 CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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Filename ECO No. DESCRIPTION OF CHANGE
G:\DATA\ECO\ECO AGENDA\01_1050 A75 PCB WITH NEW STARPOINT\L881_5.0\L881_5.0.ddb - L881C4_5.0.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
A75 AMPLIFIER
Circuit Diagram
L881C4
JAG
4-Apr-2001
INITIALS
Date Printed 4 7Sheet of
Notes:
R203
4K7 MF R206 4K7 MF
R215
3K3 MF R217 3K3 MF
RV166B
10K LIN POT
RV165B
10K LIN POT
C205
220N PE C207 220N PE
R207
4K7 MF
R213
10K MF
RV167B
10K LIN POT
+
C203
10U EL
BASS
TREBLE
8dB cut and boost
Tone controls :
R202
4K7 MF R204
4K7 MF
R214
3K3 MF R216
3K3 MF
RV166A
10K LIN POT
RV165A
10K LIN POT
C204
220N PE C206 220N PE
R205
4K7 MF
R210
10K MF
RV167A
10K LIN POT
+
C202
10U EL
BASS
TREBLE
8dB cut and boost
Tone controls :
Pot arrow shows max boost
Pot arrow shows max boost
+15V
-15V
R201
24K MF
R200
24K MF
3
21
Z161A
4560D
5
67
Z161B
4560D
C197
10P CD
C196
10P CD
5
67
Z160B
4560D
3
21
Z160A
4560D
84
Z160C
4560D
84
Z161C
4560D
C208
4N7 PP
PWRRIGHT
PWRLEFT
PREMUTE
C209
4N7 PP
1
2
3
4
5
6
7
8
LK169
L809CA
LK200
LINK10NP
LK239
LINK10NP
SEL1
1
S2 14
D1
2
V+ 13
S1
3
S3 11
V-
4
GND
5VL 12
S4
6
D3 10 D4
7
SEL3 9
D2 15
SEL4
8
SEL2 16
Z171
DG413DJ
PREMUTE
SELOPR
SELOPL
-15v
+15v
+5v
-15v
+15v
R230
47R MF
C227
100P PPW
R231
47R MF
C228
100P PPW
SEL1
1
S2 14
D1
2
V+ 13
S1
3
S3 11
V-
4
GND
5VL 12
S4
6
D3 10 D4
7
SEL3 9
D2 15
SEL4
8
SEL2 16
Z164
DG413DJ
84
Z163C
OPA2134PA
3
21
Z163A
OPA2134PA
5
67
Z163B
OPA2134PA
+5v
+15v
-15v
-15v
+15v
AVCONTROL
AVCONTROL R234
100K MF
R235
100K MF
R232
100K MF
R233
100K MF
C213
100N CD C218 100N CD C219 100N CD
C222
100N CD
C221
100N CD
C220
100N CD
C216
100N CD
C217
100N CD
C223
100N CD
C224
100N CD
LHC 2
RHC 3
1
4
L5
6
R7
SK162
HPSKT
4 5 6
SW163B
2PCO
1 2 3
SW163A
2PCO
R161
330R 1W CF
R162
330R 1W CF
R236
100R W2 CF R237 100R W2 CF
1
2
3
4
5
6
7
LK170
L825CA
1
2
3
4
5
6
7
LK171
L825CA
HPSW1
HPSW2 SP2_SEND_L
SP2_SEND_R
SP2_RETN_R
SP2_RETN_L
OP_L
OP_R
1 2 3
SW162A
2PCO
4 5 6
SW162B
2PCO
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_SIG
0V_LS_R
0V_SIG
0V_SIG
0V_SIG 0V_SIG
0V_SIG
0V_SIG
C195
10N CD
1
2
3
4
5
6
7
8
LK168
L809CA
VOLUME POT SNAP OFF BOARD
RV164A
6A360M
RV164B
6A360M
+-
+
RV164C
6A360M
9
7
Case
RV164D
6A360M
0V_SIG
PREMUTE
AVCONTROL
PREMUTE161
D164
1N4148 D165 1N4148
-15v
+15v
D166
1N4148
D167
1N4148-15v
+15v
PREAMP OUT
0V_SIG
1 2
LK174
10MM LINK
1 2
LK175
10MM LINK
BOT
5
6
TOP
4
N
F
SK101B
PHONO4G
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
PL161
DIL16 VPLG
0V_SIG
TAPOLTAPOR
1 2
LK173
10MM LINK
1 2LK172
10MM LINK
0V_SIG
CUT LINK IF CIM FITTED (8P ONLY)
CUT LINK IF CIM FITTED (8P ONLY)
FIT LINKS FOR 8P
FIT LINK FOR 8P ONLY
USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75
Pre-amp Out, Tone & Headphone
1 2
VOLMOTA161
2W CABLE HOLDER
R238
1K2 MF
R239
1K2 MF
R240
1K0 MF
R160
1K0 MF
0V_SIG
0V_SIG
+
C200
47U EL 35V
+
C201
47U EL 35V
R208
100K MF
R209
100K MF
0V_SIG
0V_SIG
1 2
LK176
10MM LINK
1 2
LK177
10MM LINK
PROT_OP_L
PROT_OP_R
R220
11K MF
R221
11K MF
R218
9K1 MF
R219
9K1 MF
Fit on A65 only
Fit on A65 only
FIT LINK FOR 8P ONLY
C210
100P PP
C211
100P PP
+C215
22U EL
+C214
22U EL
JAG 27-08-00 PRODUCTION BUILD 1
CL 31-08-00 PRODUCTION BUILD 2
CL 08-09-00 EMC MODIFICATION 2.1
CL 21/9/00 PRODUCTION BUILD 3.100_1105
CL 20/9/00 PRODUCTION BUILD 3.000_1076
JAG 12/10/00 PRODUCTION BUILD 3.400_1110
R211
68K MF
R212
68K MF
WAF 25/10/00 PRODUCTION BUILD 3.500_1119
JAG 26/10/00 PRODUCTION BUILD 3.600_1124
JAG 9/11/00 PRODUCTION BUILD 3.6a00_1133
mgm/es 1/12/00 admin changes 3.700_1141
USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65
CL 27/3/01 NEW STARPOINT ADDED 5.001_1050

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Filename ECO No. DESCRIPTION OF CHANGE
J:\PROJECTS\a75\cct & pcb\issue b wip\L885PB\L885pb.ddb - ISSUE 1\L885C1_1.SCH
A & R Cambridge Ltd.
Pembroke Avenue
Denny Industrial Centre
Waterbeach
Cambridge CB5 9PB
DISPLAY PCB FOR A75 AMP
Circuit Diagram
L885C1_A
ES
12-Sep-2000
INITIALS
Date Printed 1 1Sheet of
Notes:
R903
220R MF R904 220R MF
Phono CD Tuner VCR AV/DVD TAPE AV/FIXED GAIN
WAF 27-3-00 FIRST PROTOTYPE AN/A
LED901
LED GREEN3.1 MMLED902 LED GREEN3.1MM LED903 LED GREEN3.1MM LED904 LED GREEN3.1MM LED905 LED GREEN3.1MM LED906 LED GREEN3.1MM LED907 LED GREEN3.1MM
A
1B 2
C
3
SW1
ALPS_ENCODER 12NOTCH
1 2 3 4 5 6 7 8 9
10
SK1
FFC10H
ES 14-06-00 ADD FLEXFOIL CONNECTORS AND CHANGE ENCODER BN/A
ES 31-07-00 CORRECTED TO MATCH MAIN PCB CN/A
PCB
PCB
L885PB_1
CL 31-08-00 PRODUCTION RELEASE 1N/A

A65/75 Display Board L885_1.1
Reference Description Part
Number
LED901-
907
LED GREEN 3.1MM SLR-
37MG3F
3D007
PCB PRINTED CIRCUIT BOARD L885PB_1
R903 RES MF W4 1% 220R 1H122
R904 RES MF W4 1% 220R 1H122
SK1 10-WAY FFC CONN HORIZ 8K8110
SW1 ALPS ENCODER 12
NOTCH VERT
EC16B12204F15
A1507

A65 Main Board L890_5.0
Reference Description Part
Number
BR300 BRIDGE RECTIFIER 8A
200V 3BGBU8 D
C101,C102 CERD 100N 63V -20% +80%
RA 2A410
C105,C106 ELST 1U0 50V 20% RA 2N510
C107-C116 CERD 100N 63V -20% +80%
RA 2A410
C117 CERD 470P 63V 20% RA 2A147
C118 CERD 100N 63V -20% +80%
RA 2A410
C119-C122 PPRO 100P 63V 5% RA 2D110N
C123,C123 CERD 47P 63V 20% RA 2A047
C125,C126 ELST 22U 63V 2N622
C127,C128 PPRO 4N7 63V 5% RA 2D247N
C129,C130 PPRO 1N3 63V 5% RA 2D213N
C131 ELST 22U 63V 2N622
C132 ELST 22U 63V 2N622
C133-C144 PPRO W 470P 63V 5% RA 2D147W
C145-C146 ELST 10U 50V 2N610
C147 ELST NON POLAR 100UF
16V 2V710
C148 ELST 1U0 50V 20% RA 2N510
C149 ELST 100U 25V 2N710
C150 ELST 1U0 50V 20% RA 2N510
C151,C152 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C153 CERD 10N 63V 20% RA 2A310
C154 PEST 100N 63V 10% 2K410
C195 CERD 10N 63V 20% RA 2A310
C196,C197 CERD 10P 63V 20% RA 2A010
C200,C201 ELST 47 35V 2N647
C202,C203 ELST 10U 50V 2N610
C204-C207 PEST 220N 63V 10% 2K422
C208,C209 PPRO 4N7 63V 5% RA 2D247N
C210,C211 PPRO 100P 63V 5% RA 2D110N
C213 CERD 100N 63V -20% +80%
RA 2A410
C214.,C215 ELST 22U 63V 2N622
C216-C224 CERD 100N 63V -20% +80%
RA 2A410
C227,C228 PPRO W 100P 63V 5% RA 2D110W
C300-C302 SUPPR CAP 3N3 250V 2K233
C303 CERD 1N0 63V 20% RA 2A210
C304,C305 ELST 47u 100V 2N647B
C306 PCRB 100N 100V 10% RA
5mm 2H410
C307 PCRB 100N 100V 10% RA
5mm 2H410
C308 ELST 10m 50V RA 32mm 2N910
C309 ELST 10m 50V RA 32mm 2N910
C310 ELST 100U 100V 2N710B
C311 ELST 100U 100V 2N710B
C312 ELST 220u 50V 2N722B
C313 ELST 220u 50V 2N722B
C315 ELST 1U0 50V 20% RA 2N510
C316 ELST 1U0 50V 20% RA 2N510
C317-C320 CERD 100N 63V -20% +80%
RA 2A410
C600 ELST 100U 100V 2N710B
C601 ELST 100U 100V 2N710B
C602 ELEC 22U 16V SILMIC 2
RFS 2P622AS2
C603 PPRO W 100P 63V 5% RA 2D110W
C604 PPRO W 100P 63V 5% RA 2D110W
C605 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C607 PPRO W 100P 63V 5% RA 2D110W
C608 PPRO W 100P 63V 5% RA 2D110W
C609 CERD 22N 63V -20% +80%
RA 2A322
C610-C615 PEST 100N 63V 10% 2K410
C616-C618 ELST 10U 50V 2N610
C619 PCRB 100N 100V 10% RA
5mm 2H410
C620 CERD 470P 63V 20% RA 2A147
C621 CERD 470P 63V 20% RA 2A147
C622 CERD 1N0 63V 20% RA 2A210
C700 ELST 100U 100V 2N710B
C701 ELST 100U 100V 2N710B
C702 ELEC 22U 16V SILMIC 2
RFS 2P622AS2
C703 PPRO W 100P 63V 5% RA 2D110W
C704 PPRO W 100P 63V 5% RA 2D110W
C705 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C707 PPRO W 100P 63V 5% RA 2D110W
C708 PPRO W 100P 63V 5% RA 2D110W
C710-C715 PEST 100N 63V 10% 2K410
C716-C718 ELST 10U 50V 2N610
C719 PCRB 100N 100V 10% RA
5mm 2H410
C720 CERD 470P 63V 20% RA 2A147
C721 CERD 470P 63V 20% RA 2A147
C722 CERD 1N0 63V 20% RA 2A210
C900 CERD 10N 63V 20% RA 2A310
C901 ELST 100U 25V 2N710
C912 CERD 10N 63V 20% RA 2A310
C913 CERD 10N 63V 20% RA 2A310
C914 ELST 220U 16V 2N722
C915 ELST 100U 25V 2N710
C916-C919 CERD 100N 63V -20% +80%
RA 2A410
C920 ELST 1M0 25V 2N810
C921 ELST 10U 50V 2N610
CL600 A75 HEATSINK CLAMP E856MC
CL601 A75 HEATSINK CLAMP E856MC
CS1 220NF CLASS X2 CAP
275VRMS 2D422
D100-D127 SSDIODE 1N4148 75V 3A4148
D128 RECTIFIER 1N4003F 1A
200V 3B4003
D129 RECTIFIER 1N4003F 1A
200V 3B4003
D130 RECTIFIER 1N4003F 1A
200V 3B4003
D131 ZENER 5V6 400MW 3C05604
D132 SSDIODE 1N4148 75V 3A4148
D134 ZENER 5V6 400MW 3C05604
D164 SSDIODE 1N4148 75V 3A4148
D165 SSDIODE 1N4148 75V 3A4148
D166 SSDIODE 1N4148 75V 3A4148
D167 SSDIODE 1N4148 75V 3A4148
D300 RECTIFIER 1N4003F 1A
200V 3B4003
D301 RECTIFIER 1N4003F 1A
200V 3B4003
D302 RECTIFIER 1N4003F 1A
200V 3B4003
D303 RECTIFIER 1N4003F 1A
200V 3B4003
D304 ZENER 39V 500MW 3C23905
D305 ZENER 39V 500MW 3C23905
D306 ZENER 10V 400MW 3C11004
D307 ZENER 10V 400MW 3C11004
D600 ZENER 4V7 400MW 3C04704
D601 ZENER 27V 400MW 3C22704
D602 ZENER 27V 400MW 3C22704

D603 RECTIFIER 1N4003F 1A
200V 3B4003
D604 RECTIFIER 1N4003F 1A
200V 3B4003
D605 SSDIODE 1N4148 75V 3A4148
D606 SSDIODE 1N4148 75V 3A4148
D700-D702 ZENER 4V7 400MW 3C04704
D703 RECTIFIER 1N4003F 1A
200V 3B4003
D704 RECTIFIER 1N4003F 1A
200V 3B4003
D705 SSDIODE 1N4148 75V 3A4148
D706 SSDIODE 1N4148 75V 3A4148
D906 RECTIFIER 1N4003F 1A
200V 3B4003
D907 RECTIFIER 1N4003F 1A
200V 3B4003
D908 Diode 5V1 400mW 3C05104
D910 SSDIODE 1N4148 75V 3A4148
D911 SSDIODE 1N4148 75V 3A4148
EL EARTH LEAD 8M101
EL300 FUSE CLIP WCK-180-01A F062
FS300 FUSEHOLDER 20mm PCB 8S004
FS300 FUSE 20mm 1.25A AS C12126
FS300 INS COVER PCB
FUSEHOLDER F022
FS301 INS COVER PCB
FUSEHOLDER F022
FS301 FUSEHOLDER 20mm PCB 8S004
HS600 ALPHA AMP 7/8 HS CLIP E810MC
HS600 ALPHA AMP 75/65
HEATSINK E81801
HS601 ALPHA AMP 75/65
HEATSINK E81801
HS601 ALPHA AMP 7/8 HS CLIP E810MC
HS602 ALPHA AMP 75/65
HEATSINK E81801
HS602 ALPHA AMP 7/8 HS CLIP E810MC
HS603 ALPHA AMP 75/65
HEATSINK E81801
HS603 ALPHA AMP 7/8 HS CLIP E810MC
L600 INDUCT 2U2 12x20mm 7D002C
L700 INDUCT 2U2 12x20mm 7D002C
LED100 LED RED/GREEN 3MM L-
93WEGW 3D006
LK100A MOLEX 3W 2.5MM P
HOLDER 8R003
LK100 JUMPER 3 WAY x 175mm L856CA
LK100 MOLEX 3W 2.5MM P
HOLDER 8R003
LK900 JUMPER 3 WAY x 175mm L856CA
LK900 MOLEX 3W 2.5MM P
HOLDER 8R003
LK903 MOLEX 3W 2.5MM P
HOLDER 8R003
PCB1 PRINTED CIRCUIT BOARD L881PB_4
Q100 TRANS LF SS N
2SC2240GR 4A2240G R
Q300 TRANS LF SS N BC546B 4A546
Q302 TRANS LF SS P BC556B 4A556
Q304 TRANS LF SS N BC546B 4A546
Q305 TRANS LF SS P BC556B 4A556
Q600 TRANS LF SS P BC556B 4A556
Q601 TRANS LF SS P BC556B 4A556
Q602 TRANS LF SS P BC556B 4A556
Q603 TRANS LF SS P 2SA970GR 4A970GR
Q604 TRANS LF SS P 2SA970GR 4A970GR
Q605-Q609 TRANS LF SS P BC556B 4A556
Q610-Q612 TRANS LF SS N
2SC2240GR 4A2240G R
Q613 TRANS LF SS N BC546B 4A546
Q614 TRANS POWER NPN
SAP15N 4CSAP15 N
Q615 TRANS POWER PNP
SAP15P 4CSAP15 P
Q616 TRANS LF SS P 2SA970GR 4A970GR
Q617 ZTX653 NPN Transistor 4B653
Q618 TRANS LF SS N BC546B 4A546
Q619 TRANS LF SS N BC546B 4A546
Q700-Q702 TRANS LF SS P BC556B 4A556
Q703 TRANS LF SS P 2SA970GR 4A970GR
Q704 TRANS LF SS P 2SA970GR 4A970GR
Q706-Q709 TRANS LF SS N BC546B 4A546
Q710-Q712 TRANS LF SS N
2SC2240GR 4A2240G R
Q713 TRANS LF SS N BC546B 4A546
Q714 TRANS POWER NPN
SAP15N 4CSAP15 N
Q715 TRANS POWER PNP
SAP15P 4CSAP15 P
Q716 TRANS LF SS P 2SA970GR 4A970GR
Q717 ZTX653 NPN Transistor 4B653
Q718 TRANS LF SS N BC546B 4A546
Q719 TRANS LF SS N BC546B 4A546
Q900 TRANS LF SS P BC556B 4A556
R100-R107 RES MF W4 1% 47K 1H347
R108 RES MF W4 1% 470R 1H147
R109 RES MF W4 1% 470R 1H147
R110 RES MF W4 1% 680K 1H468
R111 RES MF W4 1% 680K 1H468
R112 RES MF W4 1% 56K 1H356
R113 RES MF W4 1% 56K 1H356
R114 RES MF W4 1% 8K2 1H282
R115 RES MF W4 1% 8K2 1H282
R116 RES MF W4 1% 18K 1H318
R117-R128 RES MF W4 1% 1K0 1H210
R129-R144 RES MF W4 1% 100K 1H410
R145 RES MF W4 1% 10K 1H310
R146 RES CF 1W 2K7 5% 1E227
R147 RES CF 1W 2K7 5% 1E227
R148 RES MF FU W3 470R 5%
NFR25 1G147
R149 RES MF W4 1% 100K 1H410
R150 RES MF W4 1% 100K 1H410
R151 RES MF W4 1% 18K 1H318
R152 RES MF W4 1% 33K 1H333
R153 RES CF 1W 1K0 5% 1E210
R154 RES MF W4 1% 47R 1H047
R155 RES MF W4 1% 47R 1H047
R156 RES MF W4 1% 1K5 1H215
R157 RES MF W4 1% 100K 1H410
R160 RES MF W4 1% 1K0 1H210
R161 RES CF 1W 330R 5% 1E133
R162 RES CF 1W 330R 5% 1E133
R200 RES MF W4 1% 24K 1H324
R201 RES MF W4 1% 24K 1H324
R202-R207 RES MF W4 1% 4K7 1H247
R208 RES MF W4 1% 100K 1H410
R209 RES MF W4 1% 100K 1H410
R210 RES MF W4 1% 10K 1H310
R211 RES MF W4 1% 68K 1H368
R212 RES MF W4 1% 68K 1H368
R213 RES MF W4 1% 10K 1H310
R214-R217 RES MF W4 1% 3K3 1H233
R230 RES MF W4 1% 47R 1H047
R231 RES MF W4 1% 47R 1H047
R232 RES MF W4 1% 100K 1H410
R233 RES MF W4 1% 100K 1H410
R234 RES MF W4 1% 100K 1H410
R235 RES MF W4 1% 100K 1H410
R236 RES CF W2 100R 5% 1D110

R237 RES CF W2 100R 5% 1D110
R238 RES MF W4 1% 1K2 1H212
R239 RES MF W4 1% 1K2 1H212
R240 RES MF W4 1% 1K0 1H210
R300 RES MF W4 1% 100R 1H110
R301 RES MF W4 1% 4K7 1H247
R302 RES MF W4 1% 4K7 1H247
R311 RES MF FU W3 10R 5%
NFR25 1G010
R312 RES MF FU W3 10R 5%
NFR25 1G010
R600 RES MF W4 1% 1K0 1H210
R601-R610 RES MF W4 1% 100R 1H110
R611 RES MF W4 1% 100K 1H410
R612 RES MF W4 1% 100K 1H410
R613 RES MF W4 1% 47R 1H047
R614 RES MF W4 1% 47R 1H047
R615 RES MF W4 1% 47R 1H047
R616 RES MF W4 1% 2K7 1H227
R617 RES MF W4 1% 680R 1H168
R618 RES MF W4 1% 10K 1H310
R619 RES MF W4 1% 10K 1H310
R620 RES MF W4 1% 10K 1H310
R621 RES MF W4 1% 680R 1H168
R622 RES MF W4 1% 10K 1H310
R623 RES MF W4 1% 10K 1H310
R624 RES MF W4 1% 10K 1H310
R625 RES MF W4 1% 6K8 1H268
R626 RES MF W4 1% 6K8 1H268
R627 RES MF W4 1% 430R 1H143
R628 RES MF W4 1% 430R 1H143
R629 RES MF W4 1% 47K 1H347
R630 RES CF W2 4R7 5% 1D847
R631 RES CF W4 5% 2R2 1B822
R632 RES MF W4 1% 12K 1H312
R633 RES MF W4 1% 12K 1H312
R700 RES MF W4 1% 1K0 1H210
R701-R710 RES MF W4 1% 100R 1H110
R711 RES MF W4 1% 100K 1H410
R712 RES MF W4 1% 100K 1H410
R713 RES MF W4 1% 47R 1H047
R714 RES MF W4 1% 47R 1H047
R715 RES MF W4 1% 47R 1H047
R716 RES MF W4 1% 2K7 1H227
R717 RES MF W4 1% 680R 1H168
R718 RES MF W4 1% 10K 1H310
R719 RES MF W4 1% 10K 1H310
R720 RES MF W4 1% 10K 1H310
R723 RES MF W4 1% 10K 1H310
R724 RES MF W4 1% 10K 1H310
R725 RES MF W4 1% 6K8 1H268
R726 RES MF W4 1% 6K8 1H268
R727 RES MF W4 1% 430R 1H143
R728 RES MF W4 1% 430R 1H143
R730 RES CF W2 4R7 5% 1D847
R731 RES CF W4 5% 2R2 1B822
R732 RES MF W4 1% 12K 1H312
R733 RES MF W4 1% 12K 1H312
R900 RES MF FU W3 1R0 5%
NFR25 1G810
R901 RES MF W4 1% 12K 1H312
R902 RES MF W4 1% 100R 1H110
R903 RES MF W4 1% 100R 1H110
R904 RES MF W4 1% 10R 1H010
R905 RES MF W4 1% 33K 1H333
R912 RES MF W4 1% 100K 1H410
R913 RES MF W4 1% 10K 1H310
R914 RES MF W4 1% 4K7 1H247
R915 RES MF W4 1% 220R 1H122
RLY1 RELAY G5Z-2A-E 24V A207
RV164 POT 20KA DUAL 18MM
MOTORISED 6A360M
RV165 POT 10KB*2LIN 6A310E
RV166 POT 10KB*2LIN 6A310E
RV167 POT 10KB*2LIN 6A310E
RV600 PRES 100R LIN HORIZ 6F110
RV700 PRES 100R LIN HORIZ 6F110
RX900 REMOTE RX SBX1610-52
38KHZ B2103
SK100 PHONO SKT 4-WAY EMC
GOLD 8D225
SK101 PHONO SKT 4-WAY EMC
GOLD 8D225
SK102 PHONO SKT 4-WAY EMC
GOLD 8D225
SK103 PHONO SKT 4-WAY EMC
GOLD 8D225
SK162 STEREO JACK PCB 8D301
SK300 COPPER RIVET TCP/D48
BS HP007
SK300 COPPER RIVET TCP/D48
BS HP007
SK300 IEC MAINS CONN PCB INS
PX 8A001
SK301 CAGE CLAMP 16A 3 WAY
ARC001-236 8Q001
SK302 CAGE CLAMP 16A 1 WAY
ARC003-236 8Q003
SK303 CAGE CLAMP 16A 2WAY
236-402/000-009 8Q005
SK304 CAGE CLAMP 16A 3 WAY
ARC004-236 8Q004
SK600 CAMCON BINDING POST
4WAY GOLD 8D418G
SK700 CAMCON BINDING POST
4WAY GOLD 8D418G
SK900 10-WAY FFC CONN VERT 8K8010
SP600 SAP TRANS Q2 PAD 21mm
x 32mm E852MC
SP601 SAP TRANS Q2 PAD 21mm
x 32mm E852MC
SP700 SAP TRANS Q2 PAD 21mm
x 32mm E852MC
SP701 SAP TRANS Q2 PAD 21mm
x 32mm E852MC
SW162 SW PUSH 2PCO A1008
SW163 SW PUSH 2PCO A1008
SW300 SW PUSH MAINS
SDDSA32MZU A1007
SW300 MAINS SWITCH SPACER E66901
SW900 SW PUSH 2PCO NON
LATCHING A1009
TH100 THERMISTOR SIEMENS
B59008 1T002
TX300 ALPHA 7 AMP MULTI
VOLTAGE
TRANSFORMER
L836TX
VOLMOT90
0 MOLEX 2W 2.5MM P HOLDER 8R002
VOLMOT90
0 JUMPER 2 W LEAD APL5 1Y271
VOLMOTA1
61 MOLEX 2W 2.5MM P HOLDER 8R002
X900 CER RESON 4.00MHz 7W005
Y300 TX WIRE RESTRAINT F185
Y301 TX WIRE RESTRAINT F185
Z100 IC AUDIO DUAL NE5532N 5A5532
Z101 IC COMPARITOR TA7317P 5M7317
Z102 IC 8 TO 1 MUX DG408DJ
DIL 5S408DJ
Z103 IC 8 TO 1 MUX DG408DJ
DIL 5S408DJ

Z104 IC AUDIO DUAL TL072 5B072
Z105 IC QUAD SPST CMOS SW
DG413DJ DIL 5S413DJ
Z160 IC AUDIO DUAL 4560D 5B4560
Z161 IC AUDIO DUAL 4560D 5B4560
Z163 IC OPAMP DUAL
OPA2134PA 5B2134D
Z171 IC QUAD SPST CMOS SW
DG413DJ DIL 5S413DJ
Z300 IC VREG POS 7805 5D7805
Z301 IC VREG NEG 7905 5D7905
Z900 IC SOCKET 28 NARROW 8S028N
Z900 IC CMOS MICRO HT48R30
28-DIP-B-0 5B483028
Z905 MOTOR DRIVER 5Q6109 5Q6109
Z906 IC CMOS EPROM 24C01 5G2401
Z907 IC HCMOS PC74HC4051 5J744051

A75 Main Board L881_5.0
Reference Description Part
Number
BR300 BRIDGE RECTIFIER 8A
200V 3BGBU8 D
C101,C102 CERD 100N 63V -20% +80%
RA 2A410
C105,C106 ELST 1U0 50V 20% RA 2N510
C107-C116 CERD 100N 63V -20% +80%
RA 2A410
C117 CERD 470P 63V 20% RA 2A147
C118 CERD 100N 63V -20% +80%
RA 2A410
C119-C122 PPRO 100P 63V 5% RA 2D110N
C123,C124 CERD 47P 63V 20% RA 2A047
C125,C126 ELST 22U 63V 2N622
C127,C128 PPRO 4N7 63V 5% RA 2D247N
C129,C130 PPRO 1N3 63V 5% RA 2D213N
C131,C132 ELST 22U 63V 2N622
C133-C144 PPRO W 470P 63V 5% RA 2D147W
C145,C146 ELST 10U 50V 2N610
C147 ELST NON POLAR 100UF
16V 2V710
C148 ELST 1U0 50V 20% RA 2N510
C149 ELST 100U 25V 2N710
C150 ELST 1U0 50V 20% RA 2N510
C151,C152 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C153 CERD 10N 63V 20% RA 2A310
C154 PEST 100N 63V 10% 2K410
C195 CERD 10N 63V 20% RA 2A310
C196,C197 CERD 10P 63V 20% RA 2A010
C200,C201 ELST 47 35V 2N647
C202,C203 ELST 10U 50V 2N610
C204-C207 PEST 220N 63V 10% 2K422
C208,C209 PPRO 4N7 63V 5% RA 2D247N
C210,C211 PPRO 100P 63V 5% RA 2D110N
C213 CERD 100N 63V -20% +80%
RA 2A410
C214,C215 ELST 22U 63V 2N622
C216-C224 CERD 100N 63V -20% +80%
RA 2A410
C227,C228 PPRO W 100P 63V 5% RA 2D110W
C300-C302 SUPPR CAP 3N3 250V 2K233
C303 CERD 1N0 63V 20% RA 2A210
C304,C305 ELST 47u 100V 2N647B
C306,C307 PCRB 100N 100V 10% RA
5mm 2H410
C308,C309 ELST 10m 50V RA 32mm 2N910
C310,C311 ELST 100U 100V 2N710B
C312,C313 ELST 220u 50V 2N722B
C315,C316 ELST 1U0 50V 20% RA 2N510
C317-C320 CERD 100N 63V -20% +80%
RA 2A410
C600,C601 ELST 100U 100V 2N710B
C602 ELEC 22U 16V SILMIC 2
RFS 2P622AS2
C603,C604 PPRO W 100P 63V 5% RA 2D110W
C605 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C607,C608 PPRO W 100P 63V 5% RA 2D110W
C609 CERD 22N 63V -20% +80%
RA 2A322
C610-C615 PEST 100N 63V 10% 2K410
C616-C618 ELST 10U 50V 2N610
C619 PCRB 100N 100V 10% RA
5mm 2H410
C620,C621 CERD 470P 63V 20% RA 2A147
C622 CERD 1N0 63V 20% RA 2A210
C700,C701 ELST 100U 100V 2N710B
C702 ELEC 22U 16V SILMIC 2
RFS 2P622AS2
C703,C704 PPRO W 100P 63V 5% RA 2D110W
C705 ELEC 100u 16V SILMIC 2
RFS 2P710AS2
C707,C708 PPRO W 100P 63V 5% RA 2D110W
C710-C715 PEST 100N 63V 10% 2K410
C716-C718 ELST 10U 50V 2N610
C719 PCRB 100N 100V 10% RA
5mm 2H410
C720,C721 CERD 470P 63V 20% RA 2A147
C722 CERD 1N0 63V 20% RA 2A210
C900 CERD 10N 63V 20% RA 2A310
C901 ELST 100U 25V 2N710
C912,C913 CERD 10N 63V 20% RA 2A310
C914 ELST 220U 16V 2N722
C915 ELST 100U 25V 2N710
C916-C919 CERD 100N 63V -20% +80%
RA 2A410
C920 ELST 1M0 25V 2N810
C921 ELST 10U 50V 2N610
CL600 A75 HEATSINK CLAMP E856MC
CL601 A75 HEATSINK CLAMP E856MC
CS1 220NF CLASS X2 CAP
275VRMS 2D422
D100-D127 SSDIODE 1N4148 75V 3A4148
D128-D130 RECTIFIER 1N4003F 1A
200V 3B4003
D131 ZENER 5V6 400MW 3C05604
D132 SSDIODE 1N4148 75V 3A4148
D134 ZENER 5V6 400MW 3C05604
D164-D167 SSDIODE 1N4148 75V 3A4148
D300-D303 RECTIFIER 1N4003F 1A
200V 3B4003
D304 ZENER 39V 500MW 3C23905
D305 ZENER 39V 500MW 3C23905
D306 ZENER 10V 400MW 3C11004
D307 ZENER 10V 400MW 3C11004
D600 ZENER 4V7 400MW 3C04704
D601,D602 ZENER 27V 400MW 3C22704
D603,D604 RECTIFIER 1N4003F 1A
200V 3B4003
D605,D606 SSDIODE 1N4148 75V 3A4148
D700-D702 ZENER 4V7 400MW 3C04704
D703,D704 RECTIFIER 1N4003F 1A
200V 3B4003
D705,D706 SSDIODE 1N4148 75V 3A4148
D906,D906 RECTIFIER 1N4003F 1A
200V 3B4003
D908 Diode 5V1 400mW 3C05104
D910 SSDIODE 1N4148 75V 3A4148
D911 SSDIODE 1N4148 75V 3A4148
EL EARTH LEAD 8M101
EL300 FUSE CLIP WCK-180-01A F062
FS300 FUSE 20mm 1.25A AS C12126
FS300 FUSEHOLDER 20mm PCB 8S004
FS300 INS COVER PCB
FUSEHOLDER F022
FS301 FUSEHOLDER 20mm PCB 8S004
FS301 INS COVER PCB
FUSEHOLDER F022
HS600 ALPHA AMP 75/65
HEATSINK E81801
HS600 ALPHA AMP 65/75 HS CLIP E862MC
HS601 ALPHA AMP 75/65
HEATSINK E81801
HS601 ALPHA AMP 65/75 HS CLIP E862MC
HS602 ALPHA AMP 75/65
HEATSINK E81801
HS602 ALPHA AMP 65/75 HS CLIP E862MC