CAMBRIDGE CP1 User manual

Service Manual
CP1
MOVING MAGNET PHONO PREAMPLIFIER
CP2
MOVING MAGNET & MOVING COIL PHONO PREAMPLIFIER
Issue date: Feb 2016
version 1.0
CP1 Technical specications
CP2 Technical specications
CP1 Specications
CP2 Specications
Max Power consumption 5W
Nominal output 300mV
THD 20Hz-20KHz <0.009%
Signal to noise ratio using Audio Precision
RIAA-1 with grounded inputs
>85dB
Input capacitance 220pF
Crosstalk @ 20KHz >76dB
Gain @ 1KHz 39dB
Sensitivity for norminal output 3.35mV
RIAA curve accuracy <+/- 0.65dB 25hz-20KHz
Input imprdance 47k Ohm
Overload margin >30dB
Dimensions(H x W x D) 46 x 215 x 133 (1.8 x 8.5 x 5.2”)
Weight 0.8kg (1.8lbs)
Max Power consumption 5W
Nominal output 300mV
THD 20Hz-20KHz <0.009%
Signal to noise ratio using Audio Precision
RIAA-1 with grounded inputs
>86dB
Input capacitance 220pF
Crosstalk @ 20KHz >83dB
Gain @ 1KHz 39dB
Sensitivity for norminal output 3.35mV
RIAA curve accuracy <+/- 0.3dB
Input imprdance 47k Ohm
Overload margin >30dB
Dimensions(H x W x D) 46 x 215 x 133 (1.8 x 8.5 x 5.2”)
Weight 0.9kg (2.0lbs)

Contents
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News, events and exclusive offers plus
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This guide is designed to make installing and using this product as
easy as possible. Information in this document has been carefully
checked for accuracy at the time of printing; however, Cambridge
Audio’s policy is one of continuous improvement, therefore design
and specications are subject to change without prior notice.
This document contains proprietary information protected by
copyright. All rights are reserved. No part of this manual may be
reproduced by any mechanical, electronic or other means, in any
form, without prior written permission of the manufacturer. All
trademarks and registered trademarks are the property of their
respective owners.
© Copyright Cambridge Audio Ltd 2016.
Cambridge Audio and the Cambridge Audio logo are trademarks of
Cambridge Audio.
Other brands mentioned are trademarks of their respective owners
and are used for reference purposes only.
Issue date: Feb 2016
version 1.0
CP1 main assembly ....................................................................................................7
CP2 main assembly .....................................................................................................8
CP package assembly..................................................................................................9
CP1 PHONO STAGE MAIN PCB - Schematic..............................................................10
CP2 PHONO STAGE MAIN PCB - Schematic..............................................................11
CP1 PCB Bottom layer - Gerber.................................................................................12
CP1 PCB Top layer - Gerber .......................................................................................13
CP2 PCB Bottom layer - Gerber.................................................................................14
CP2 PCB Top layer - Gerber .......................................................................................15
CP1 Bom.....................................................................................................................16
CP2 Bom.....................................................................................................................18
IC PINS ........................................................................................................................20

3
For your own safety please read the following important safety instructions carefully
before attempting to connect this unit to the mains power supply. They will also
enable you to get the best performance from and prolong the life of the unit:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding-type
plug has two blades and a third grounding prong. The wide blade or the third
prong are provided for your safety. If the provided plug does not t into your
outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles and the point where they exit from the apparatus.
11. Only use attachments/accessories specied by the manufacturer.
12. Unplug this apparatus during lightning storms or when unused for long periods
of time.
13. Refer all servicing to qualied service personnel. Servicing is required when
the apparatus has been damaged in any way, such as the power-supply cord or
plug having been damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE AND OBJECTS FILLED WITH LIQUIDS,
SUCH AS VASES, SHOULD NOT BE PLACED ON THIS APPARATUS.
Batteries (battery pack or batteries installed) shall not be exposed to excessive
heat such as sunshine, re or the like.
TO COMPLETELY DISCONNECT THIS APPARATUS FROM THE AC MAINS,
DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE.
POUR DECONNECTER COMPLETEMENT L’APPAREIL DU RESEAU D’ALIMENTATION,
DECONNECTER LE CORDON D’ALIMENTATION DE LA PRISE MURALE.
THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY
ACCESSIBLE. LA PRISE DU RESEAU D’ALIMENTATION DOIT DEMEURER AISEMENT
ACCESSIBLE”.
Important safety instructions
The lightning ash with the arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of un-insulated ‘dangerous voltage’
within the product’s enclosure that may be of sufcient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to
the presence of important operating and maintenance instructions in the service
literature relevant to this appliance.
WEEE symbol
The crossed-out wheeled bin is the European Union symbol for
indicating separate collection for electrical and electronic equipment.
This product contains electrical and electronic equipment which
should be reused, recycled or recovered and should not be disposed
of with unsorted regular waste. Please return the unit or contact the
authorised dealer from whom you purchased this product for more
information.
CE mark
This product complies with European Low Voltage (2006/95/EC),
Electromagnetic Compatibility (2004/108/EC) and Environmentally-
friendly design of Energy-related Products (2009/125/EC) Directives when used
and installed according to this instruction manual. For continued compliance only
Cambridge Audio accessories should be used with this product and servicing must
be referred to qualied service personnel.
RCM (Regulatory Compliance Mark)
This product meets the Safety, EMC and Radio Communications
requirements of the ERAC and ACMA.
CU-TR Mark
This product meets Russia, Byelorussia and Kazakhstan electronic
safety approvals.
FCC regulations
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR
TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS
EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER AUTHORITY TO
OPERATE THE EQUIPMENT.
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in
a particular installation.
If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
- Re-orient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

Service Manual
4
CP1/CP2
Rear panel connections
Front panel control
0dBL R
1
2
3
4
1
2
3
40.5 A
R L
MC MM Off On
R L
Turntable
Ground
Designed & Engineered in Britain
Assembled in China
MC MM Output
Cartridge Type Subsonic Filter
Balance
R L
12V
12V
1. MC input sockets (CP2 only)
If your turntable uses a moving coil cartridge, connect outputs here
(0.5-1mV, with 100 ohm, 220pF loading).
2. Turntable ground
If your turntable has a separate grounding lead then connect here. This provides
shielding to the arm and the sensitive circuitry in the turntable.
3. MM input sockets
If your turntable uses a moving magnet cartridge, connect outputs here (3-5mV,
with 47k ohm, 220pF loading).
4. Cartridge Type selector switch (CP2 only)
Match this switch to the cartridge type that your tunrtable uses. MM for a moving
magnet cartridge or MC for a moving coil cartridge.
5. Balance
This control allows you to make ne adjustments to the relative output levels of
the left and right channels. In the central position the output from each channel
is equal.
6. Subsonic Filter (CP2 only)
The subsonic lter cuts out very low frequency ‘rumble’, caused by vinyl
imperfections, which can affect your system’s performance.
7. Output sockets
Use phono cables to connect to any line level input on your amplier, such as Aux.
NB. Do not connect to a phono level input.
8. PSU socket
Once you have completed all connections to the amplier and turntable, plug the
PSU power cable into an appropriate mains socket and switch the unit on via its
front panel On/Off button. The LED on the front panel will indicate that the power
is on.
Please note the CP2 has an output relay, which after power on takes 15 seconds
to come out of mute.
NB. Only use supplied power supply.
1. On/Off
Switches the unit between on and off.
1
1
2 3 4 5 6 7

5
Connections
L R

Service Manual
6
CP1/CP2
Troubleshooting
There is no power
Ensure the power supply is connected securely to the unit.
Ensure the power supply is fully inserted into the mains socket and is switched
on.
There is no sound
Make sure the unit is plugged in.
Check that your turntable is properly connected.
Check that your speakers are properly connected.
Check all connections are secure and correct amplier input is selected.
Ensure correct cartridge type has been selected (MM or MC).
There is no sound on one channel
Check that your speakers are properly connected.
Check all connections are secure.
There is a loud buzz or hum
Check turntable or tone arm for ground and connection lead fault.
Ensure no connections are loose or defective.
Ensure that your turntable is not too close to the amplier.
Volume is too loud/quiet
Check cartridge type matches input type. If a MC cartridge is connected through
the MM inputs, volume will be very quiet (and vice versa). Note that it is possible to
obtain high level MC cartridges which are designed for an MM input.
In the event that the above solutions do not remedy your problem, please
consult our frequently asked questions (FAQ) section on our website:
techsupport.cambridgeaudio.com
For all servicing, in or out of warranty, please contact your dealer.

7
CP1 main assembly
Exploded drawing view ref Description Service part (order ref)
1 +2 front panel and CA foil badge
3Azur range lightguide for 1 LED
4CP1 Main PCBA PHT001
59mm push switch button in aluminum
6screw M3 X 4 pozi pan washer mc
7lidding tape
8top casework part
9screw m3 x6 pozi cs mc
10 bottom case part
11 screw m3 x 8 pozi pan plastite - self tapping
12 grounding threaded pin
13 azur phono stage rubber foot
14 front plastic foot
15 screw m3 x 6 pozi pan m/c
16 front foot pad
17 9mm knob push and turn type
1
3
4
14
9
11
10
12
13
8
7
15
16
17
5
2
6
A3
1
2
3
4
5
6
7
8
DD
C
B
A
A
B
C
1
2
3
4
5
6
7
8
3
COPYRIGHT
2009
:
AUDIO
PARTNERSHIP
3 GALLERY
COURT,
HANKEY PLACE,
LONDON SE1 4BB
TEL: 0207 940
2200
FAX: 0207 940
2233
PROPRIETARY AND CONFIDENTIAL:
TRANSMISSION OR REPRODUCTION IN PART OR AS A
WHOLE WITHOUT THE PRIOR WRITTEN PERMISSION OF
AUDIO PARTNERSHIP PLC IS PROHIBITED.
GENERAL NOTES:
TOLERANCES UNLESS OTHERWISE STATED:
WHOLE No's I.E. 75
0.5mm
1 DECIMAL I.E. 75.5
0.2mm
2 DECIMALS I.E. 75.75
0.1mm
ANGULAR
0.5
ALL DIMENSIONS ARE IN mm
DO NOT SCALE FROM THIS DRAWING. IF IN
DOUBT ASK.
THIRD ANGLE PROJECTION
FINISH
:
MATERIAL:
TITLE:
DWG. NO.
SHEET 1 OF 2
SCALE:
1:5
AP34281
CA0833 MAIN ASSEMBLY
MUST USE ONLY RoHS COMPLIANT MATERIALS AND PROCESSES
/2

Service Manual
8
CP1/CP2
Exploded drawing view ref Description Service part (order ref)
1 +2 front panel and CA foil badge
3Azur range lightguide for 1 LED
4CP2 Main PCBA PHT002
59mm push switch button in aluminum
6screw M3 X 4 pozi pan washer mc
7lidding tape
8top casework part
9screw m3 x6 pozi cs mc
10 phono preamp bottom case part
11 screw m3 x 8 pozi pan plastite - self tapping
12 grounding threaded pin
13 azur phono stage rubber foot
14 front plastic foot
15 screw m3 x 6 pozi pan m/c
16 front foot pad
17 9mm knob push and turn type
1
5
4
17
9
11
10
12
13
8
7
2
15
14
3
16
6
A3
1
2
3
4
5
6
7
8
DD
C
B
A
A
B
C
1
2
3
4
5
6
7
8
3
COPYRIGHT
2009
:
AUDIO
PARTNERSHIP
3 GALLERY
COURT,
HANKEY PLACE,
LONDON SE1 4BB
TEL: 0207 940
2200
FAX: 0207 940
2233
PROPRIETARY AND CONFIDENTIAL:
TRANSMISSION OR REPRODUCTION IN PART OR AS A
WHOLE WITHOUT THE PRIOR WRITTEN PERMISSION OF
AUDIO PARTNERSHIP PLC IS PROHIBITED.
GENERAL NOTES:
TOLERANCES UNLESS OTHERWISE STATED:
WHOLE No's I.E. 75
0.5mm
1 DECIMAL I.E. 75.5
0.2mm
2 DECIMALS I.E. 75.75
0.1mm
ANGULAR
0.5
ALL DIMENSIONS ARE IN mm
DO NOT SCALE FROM THIS DRAWING. IF IN
DOUBT ASK.
THIRD ANGLE PROJECTION
FINISH
:
MATERIAL:
TITLE:
DWG. NO.
SHEET 1 OF 2
SCALE:
1:5
CA0838 MAIN ASSEMBLY BOM
MUST USE ONLY RoHS COMPLIANT MATERIALS AND PROCESSES
/2
AP34283
CP2 main assembly

9
Exploded drawing view ref Description Service part (order ref)
1main assembly
3black woven bag packaging
4 + 5 CP1/2 EPE End Left & Right PHT004
6+7
UK PSU with ferrite PY867
EU PSU with ferrite PY912
CU PSU with ferrite PY1538
AU PSU with ferrite PY1063
10 Poly bag 173 x 260mm
11 CP1/2 Gift Box PHT003
11
4
8
5
6
1
3
12
7
NO.
DRG. NO.
DESCRIPTION/TYPE
QTY
MANUFACTURER
BOM NOTES
UK SILVER
UK BLACK
EU SILVER
EU BLACK
CU SILVER
CU BLACK
1
AP34281
CA0833 MAIN ASSEMBLY
1
HTP
PLACE WITHIN WOVEN BAG
SILVER CP1
BLACK CP1
SILVER CP1
BLACK CP1
SILVER CP1
BLACK CP1
2
STD FXGS
SERIAL NUMBER LABEL
1
MFG. VENDOR PRINT WITH SERIAL NO LABEL AND
ATTACH TO BOTTOM PANEL
3
AP34365
CA0833 BLACK WOVEN BAG
PACKAGING
1
ANY VENDOR
SCREENED WITH ARTWORK
AP34363 - PLACE UNIT WITHIN
AND FOLD BAG UNDER
4
AP34356
CA0833 EPE END LEFT
1
MFG. VENDOR
FIT WITH UNIT
5
AP34357
CA0833 EPE END RIGHT
1
MFG. VENDOR
FIT IWTH UNIT AND PSU
6
STD PSU
CA0833 PACKAGED PSU 12v AC
GPB411200500WA00
1
GOOD POWER
ELECTRONICS
WITH BOX FIT IN EPE END RIGHT
RECESS
USE AP28285 GPE UK
PSU
GPB411200500WA00
USE AP28285 GPE UK
PSU
GPB411200500WA00
USE AP28284 GPE EU
PSU
GPG411200500WA00
USE AP28284 GPE EU
PSU
GPG411200500WA00
USE AP30864 GPE CU
PSU
GPU411200500WA00
USE AP30864 GPE CU
PSU
GPU411200500WA00
7
STD FERRITE
STD ~ FERRITE CLIP ~ CLIP ON PSU
LEAD
1
COILS ELECTRONIC CO
LTD
FERRITE CORE ECDN-EHF-60-B -
WRAP PSU LEAD THRU 3 TIMES
AND CLIP TO FIX
8
AP34362
CA0833 QUICK START GUIDE
1
MFG.VENDOR
INSERT WITH PE BAG ON TOP OF
UNIT
9
AP34361
CA0833 SAFETY GUIDE
1
MFG. VENDOR
INSERT WITH PE BAG ON TOP OF
UNIT
10
STD POLY BAG
POLY BAG 173 X 260mm
1
MANUFACTURER'S
VENDOR FIT PSU WITHIN
11
AP34285
CA0833 PACKAGING CARTON
1
MFG VENDOR
PLACE PACKAGED UNIT WITHIN
12
SEE DIFFERENCES
CA0833 CARTON LABEL
1
MFG. VENDOR
REMOVE ADHESIVE COVER AND
STICK ON CARTON SIDE WITHIN
THE MARKED AREA
USE ARTWORK
AP34325 FOR CP1
AP34331 FOR CP2
USE ARTWORK
AP34322 FOR CP1
AP34328 FOR CP2
USE ARTWORK
AP34324 FOR CP1
AP34330 FOR CP2
USE ARTWORK
AP34321 FOR CP1
AP34327 FOR CP2
USE ARTWORK
AP34323 FOR CP1
AP34329 FOR CP2
USE ARTWORK
AP34320 FOR CP1
AP34326 FOR CP2
13
AP34364
CA0833 BULK CARTON BOX
1
MFG. VENDOR
PLACE 10PCS PACKAGING
CARTON AND TAPE TO SECURE
CARTON LABEL
AP34338 FOR CP1
AP34344 FOR CP2
CARTON LABEL
AP34337 FOR CP1
AP34343 FOR CP2
CARTON LABEL
AP34336 FOR CP1
AP34342 FOR CP2
CARTON LABEL
AP34335 FOR CP1
AP34341 FOR CP2
CARTON LABEL
AP34333 FOR CP1
AP34340 FOR CP2
CARTON LABEL
AP34334 FOR CP1
AP34339 FOR CP2
A3
DD
C
B
A
A
B
C
1
2
3
4
5
6
7
8
3
TEL: 0207 940 2200
FAX: 0207 940 2233
PROPRIETARY AND CONFIDENTIAL:
TRANSMISSION OR REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE PRIOR WRITTEN PERMISSION OF AUDIO
PARTNERSHIP PLC IS PROHIBITED.
GENERAL NOTES:
TOLERANCES UNLESS OTHERWISE STATED:
WHOLE No's I.E. 75
0.5mm
1 DECIMAL I.E. 75.5
0.2mm
2 DECIMALS I.E. 75.75
0.1mm
ANGULAR
0.5
ALL DIMENSIONS ARE IN mm
DO NOT SCALE FROM THIS DRAWING. IF IN DOUBT
ASK.
THIRD ANGLE PROJECTION
FINISH
:
MATERIAL:
TITLE:
DWG. NO.
SHEET 1 OF 1
SCALE: 1:3
AP34282
CA0833 PACKAGING
ASSEMBLY BOM
MUST USE ONLY RoHS COMPLIANT MATERIALS AND PROCESSES
/1
CP package assembly

Service Manual
10
CP1/CP2
CP1 PHONO STAGE MAIN PCB - Schematic

11
CP2 PHONO STAGE MAIN PCB - Schematic

Service Manual
12
CP1/CP2
CP1 PCB Bottom layer - Gerber
CAM350 PRO V 7.5.1 : Wed Jan 27 16:22:23 2016 - (Untitled)

13
CP1 PCB Top layer - Gerber
CAM350 PRO V 7.5.1 : Wed Jan 27 16:21:07 2016 - (Untitled)

Service Manual
14
CP1/CP2
CP2 PCB Bottom layer - Gerber
CAM350 PRO V 7.5.1 : Wed Jan 27 16:15:31 2016 - (Untitled)

15
CP2 PCB Top layer - Gerber
CAM350 PRO V 7.5.1 : Wed Jan 27 16:11:06 2016 - (Untitled)

Service Manual
16
CP1/CP2
CP1 Bom
Value Description/Type Qty Component Ident ManPN Tolerance PackageInfo NOTES Service part (order
ref)
RESISTORS
22R 1/4W Metal Film 2 R23, R35 1% 10mm Pitch use local source
47R 1/4W Metal Film 2 R25, R37 1% 10mm Pitch use local source
47R 1/8W Metal Film 1 R36 1% 7.5mm Pitch use local source
47R 1/8W Metal Film 2 R44-R45 1% 7.5mm Pitch use local source
100R 1/4W Metal Film 4 R8, R16, R42-R43 1% 10mm Pitch use local source
100R 1/8W Metal Film 1 R48 1% 7.5mm Pitch use local source
220R 1/4W Metal Film 2 R28, R40 1.00% 10mm Pitch use local source
390R 2W MOF type 1 R54 10% 20mm Pitch use local source
820R 1/4W Metal Film 2 R6, R34 1% 10mm Pitch use local source
1k0 1/4W Metal Film 4 R12-R13, R20-R21 1.00% 10mm Pitch use local source
1k 1/8W Metal Film 1 R50 1% 7.5mm Pitch use local source
1k2 1/4W Metal Film 4 R2, R27, R30, R39 1% 10mm Pitch use local source
1k8 1/4W Metal Film 2 R5, R33 1.00% 10mm Pitch use local source
2k2 1/4W Metal Film 2 R7, R15 1% 10mm Pitch use local source
3k9 1/4W Metal Film 4 R3, R26, R31, R38 1% 10mm Pitch use local source
4k7 1/4W Metal Film 6 R9-R11, R17-R19 1% 10mm Pitch use local source
7k5 1/4W Metal Film 2 R29, R41 1% 10mm Pitch use local source
8k2 1/8W Metal Film 2 R46-R47 1% 7.5mm Pitch use local source
15k 1/8W Metal Film 1 R49 1% 7.5mm Pitch use local source
22k 1/4W Metal Film 1 R1 1% 10mm Pitch use local source
22k 1/8W Metal Film 1 R24 1% 7.5mm Pitch use local source
47k 1/4W Metal Film 2 R14, R22 1% 10mm Pitch use local source
51k 1/8W Metal Film 1 R53 1% 7.5mm Pitch use local source
82k 1/4W Metal Film 2 R4, R32 1% 10mm Pitch use local source
220k 1/8W Metal Film 6 R51-R52, R55-R56, R92-R93 1% 7.5mm Pitch use local source
RESISTORS VARIABLE
5k Pot balance taper 1 VR1 RD902F-20-15F-
MN5K-0C 20% 9mm Body MN’ balance taper Add glue around
part
CAPACITORS
NO FIT 5 C43-C47
100pF 100V NP0 Ceramic 2 C18, C22 5% 3mm Pitch use local source
220pF 50V NP0 Ceramic 2 C19, C23 5% 2.5mm Pitch use local source
4.7nF 50V Ceramic 2 C39-C40 10% 5mm Pitch use local source
39nF 63V Met. Polyester 2 C14, C30 10% 5mm Pitch Box use local source
47nF 63V Met. Polyester 8 C7-C8, C34-C37, C41-C42 10% 5mm Pitch Box use local source
47nF 63V Met. Polyester 2 C87, C96 10% 5mm Pitch Box use local source
82nF 63V Met. Polyester 2 C15, C31 5% 5mm Pitch Box use local source
100nF 50V Mono Ceramic 2 C25-C26 20% 5mm Pitch use local source
470nF 50V Ceramic 1 C38 10% 2.5mm Pitch use local source
1uF 50V 105DEG Electrolytic 1 C95 RK series 20% 5mm Dia 105DEG use local source
4.7uF 100V Met. Polyester 6 C12-C13, C27-C29, C33 5% 25mm Pitch Box use local source
10uF 25V Electrolytic 1 C11 RK series 20% 5mm Dia 105 DEG use local source
47uF 16V NP Electrolytic 4 C74, C78, C97, C100 NP series 20% 6mm Dia 105 DEG use local source
100uF 25V Electrolytic 6 C9-C10, C16-C17, C20-C21 RK series 20% 6mm Dia 105 DEG use local source
100uF 25V NP Electrolytic 2 C24, C32 NP series 20% 8mm Dia 105 DEG use local source
100uF 25V Electrolytic 1 C94 RK series 20% 6mm Dia 105DEG use local source
220uF 50V Electrolytic 6 C1-C6 RK series 20% 10mm Dia 105 DEG use local source
1000uF 25V Electrolytic 1 C55 YHA-1EM102-1020 20% 10mm dia use local source
CONNECTORS
DC Jack 1 CN1 RDC-020-14A PY874
2 Way Horizontal RCA 2 CN2-CN3 Through Hole
Gold plated, From data sheet ‘A’
socket WHITE ‘B’ socket RED
inserts
2.5mm 1 CN4 LHE XHB A2502-H02
(Header) with cable
2 Way Straight Header 1 CN5 LHE XHB A2502-WV02 2.5mm Pitch

17
3 Way Straight Header 1 CN6 LHE PHB A2005-WV03 2mm Pitch
DIODES
White LED 1 D1 L-132X-CW896 3mm For Cable Assembly.
400V 1A Rectier 8 D2-D6, D8-D9, D13 1N4004 DO41 use local source
75V 150mA Signal Diode 1 D7 1N4148 D035 use local source
INTEGRATED CIRCUITS
18V 1A Regulator 1 U1 7818 Through Hole
-18V 1A Regulator 1 U2 7918 Through Hole
Dual Audio Op Amp 3 U3-U4, U7 NE5532P DIL08 PY108
RELAY
5V 2A 2P2T Relay 1 RL1 ME2-5 Through Hole PY584
SWITCHES
2P2T Pushbutton Switch 1 SW1 T18 Z 08 PAA004 PY645
TRANSISTORS
-120V -100mA PNP Low Noise 4 Q1-Q4 2SA970GR TO92 PF075
-45V -100mA PNP Low Noise 1 Q19 BC557C TO92
30V 500mA NPN Darlington 1 Q20 MPSA14 TO92 PY1211
MISCELLANEOUS
M3 Nylon Insulating Bush 2 BS1-BS2 TO220
2 Way SAN Solder in Cable assembly 1 CA1 AP34397/X 2mm Pitch 2 way power cable
~23mm Height Heatsink for Phono Stage Regs 1 HS1 AP15814/x AP Vendor
xxmm Long, 2mm dia,
2:1 ratio UL Approved Heatshrink 2mm 1 HS2 0.015M
24 AWG Tinned Link Wire 7 LK1-LK2, LK4-LK6, LK9, LK18 10mm Pitch
24 AWG Tinned Link Wire 2 LK3, LK7 15mm Pitch
24AWG Tinned Link Wire 1 LK8 7.5m Pitch
24 AWG Tinned Link Wire 3 LK11, LK19-LK20 5mm Pitch
24 AWG Tinned Link Wire 7 LK12-LK17, LK21 10mm Pitch
Mica Washer with Thermal
Compound 2 MI1-MI2
M3x8mm MC P/H Black Screw 2 SC1-SC2
M3x6mm MC P/H Black Screw 1 SC3
M3 Hex Nut 5.5 x 2.4mm 2 WS1-WS2
Ex Tooth Lock Washer 2 WS3-WS4

Service Manual
18
CP1/CP2
Value Description/Type Qty Component Ident ManPN Tolerance PackageInfo NOTES Service part (order ref)
RESISTORS
47R 1/8W Metal Film 6 R5-R6, R21, R23, R34-R35 1% 7.5mm Pitch use local source
82R 1/4W Metal Film 1 R42 1% 10mm Pitch use local source
100R 1/4W Metal Film 4 R11, R25, R50, R75 1% 10mm Pitch use local source
100R 1/8W Metal Film 1 R30 1% 7.5mm Pitch use local source
130R 1/8W Metal Film 2 R15-R16 1% 7.5mm Pitch use local source
150R 1/4W Metal Film 1 R43 1% 10mm Pitch use local source
390R 2W MOF type 1 R46 10% 20mm Pitch use local source
910R 1/8W Metal Film 4 R36-R38, R61 1% 7.5mm Pitch use local source
3.92k 1/4W Metal Film 1 R22 0.10% 10mm Pitch use local source
No Fit 2 R49, R82 use local source
18R 1/8W Metal Film 2 R54, R71 1% 7.5mm Pitch use local source
91R 1/8W Metal Film 2 R62, R79 1% 7.5mm Pitch use local source
470R 1/4W Metal Film 4 R58-R59, R66-R67 1% 10mm Pitch use local source
470R 1/8W Metal Film 2 R60, R77 1% 7.5mm Pitch use local source
1k87 1/4W Metal Film 4 R7, R20, R24, R45 0.10% 10mm Pitch use local source
1k 1/8W Metal Film 3 R12, R19, R39 1% 7.5mm Pitch use local source
1k2 1/8W Metal Film 4 R8-R9, R84, R90 1% 7.5mm Pitch use local source
1k3 1/8W Metal Film 8 R52-R53, R57, R65, R69-R70, R74, R102 1% 7.5mm Pitch use local source
1k6 1/8W Metal Film 2 R3, R28 1% 7.5mm Pitch use local source
2k2 1/8W Metal Film 6 R26, R51, R86-R89 1% 7.5mm Pitch use local source
3k92 1/4W Metal Film 1 R14 0.10% 10mm Pitch use local source
3k 1/8W Metal Film 4 R94-R95, R100, R104 1% 7.5mm Pitch use local source
3k9 1/8W Metal Film 4 R2, R4, R27, R29 1% 7.5mm Pitch use local source
8k2 1/8W Metal Film 2 R96-R97 1% 7.5mm Pitch use local source
11k 1/8W Metal Film 4 R63-R64, R80-R81 1% 7.5mm Pitch use local source
15k 1/8W Metal Film 5 R31, R55-R56, R72-R73 1% 7.5mm Pitch use local source
22k 1/4W Metal Film 1 R1 1% 10mm Pitch use local source
47k 1/8W Metal Film 5 R47-R48, R76, R78, R98 1% 7.5mm Pitch use local source
51k 1/8W Metal Film 3 R17-R18, R44 1% 7.5mm Pitch use local source
75k 1/4W Metal Film 2 R10, R13 0.10% 10mm Pitch use local source
180k 1/8W Metal Film 2 R32-R33 1% 7.5mm Pitch use local source
220k 1/8W Metal Film 6 R40-R41, R83, R91-R93 1% 7.5mm Pitch use local source
560k 1/8W Metal Film 2 R68, R85 1% 7.5mm Pitch use local source
RESISTORS
VARIABLE
5k Pot balance taper 1 VR1 RD902F-20-15F-MN5K-0C 20% 9mm Body MN’ balance taper
CAPACITORS
NO FIT 9 C86, C101-C108
22pF 50V NP0 Ceramic 2 C35, C75 5% 2.5mm Pitch Manufacturer not critical use local source
33pF 50V NP0 Ceramic 3 C85, C98-C99 5% 2.5mm Pitch Manufacturer not critical use local source
47pF 50V NP0 Ceramic 2 C92-C93 5% 2.5mm Pitch Manufacturer not critical use local source
220pF 100V Polypropylene 4 C46, C51, C58, C63 5% use local source
10nF 100V Polypropylene 10 C16, C45, C54, C69, C71-C73, C76-C77,
C82 5% use local source
10nF 160V 1% Polypropylene 16 C17-C24, C32-C34, C36-C39, C81 1% 5mm Pitch Box use local source
47nF 63V Met. Polyester 14 C7-C8, C12-C13, C27, C40-C41, C52-C53,
C66, C79-C80, C87, C96 10% 5mm Pitch Box use local source
100nF 63V Met. Polyester 7 C25, C30, C59-C60, C62, C67-C68 10% 5mm Pitch Box use local source
470nF 63V Met. Polyester 3 C26, C50, C70 10% 5mm Pitch Box use local source
1uF 50V 105DEG Electrolytic 1 C95 RK series 20% 5mm Dia 105DEG use local source
4.7uF 100V Met. Polyester 4 C14-C15, C28-C29 10% use local source
10uF 25V Electrolytic 1 C11 RK series 20% 5mm Dia 105 DEG use local source
47uF 16V NP Electrolytic 6 C31, C64, C74, C78, C97, C100 NP series 20% 6mm Dia 105DEG use local source
100uF 25V Electrolytic 3 C9-C10, C94 RK series 20% 6mm Dia 105DEG use local source
220uF 6V3 NP Electrolytic 4 C44, C49, C56, C61 NP series 20% 8mm Dia 105DEG use local source
330uF 50V 105 deg Electrolytic 4 C1, C3, C5-C6 RK series 20% 10mm Dia 105DEG use local source
470uF 25V Electrolytic 4 C57, C65, C83-C84 RK series 20% 8mm Dia 105DEG use local source
470uF 6V3 NP Electrolytic 4 C88-C91 NP series 20% 10mm Dia 105DEG use local source
1000uF 35V 105DEG Electrolytic 2 C2, C4 YEM low ESR type 20% 105DEG Low ESR type use local source
1000uF 25V Electrolytic 5 C42-C43, C47-C48, C55 YHA-1EM102-1020 20% 10mm dia use local source
CONNECTORS
CP2 Bom

19
DC Jack 1 CN1 RDC-020-14A PY874
2 Way Horizontal RCA 3 CN2-CN4 Through Hole
Gold plated, From data
sheet ‘A’ socket WHITE ‘B’
socket RED inserts
2 Way Straight Header 1 CN5 LHE XHB A2502-WV02 2.5mm Pitch
3 Way Straight Header 1 CN6 LHE PHB A2005-WV03 2mm Pitch
2.5mm 1 CN7 LHE XHB A2502-H02 (Header)
with cable
DIODES
400V 1A Rectier 8 D1-D4, D6-D8, D13 1N4004 DO41 use local source
75V 150mA Signal Diode 1 D5 1N4148 D035 use local source
Red 2V 4 D9-D12 TBD 3mm use local source
White LED 1 D14 L-132X-CW896 3mm For Cable Assembly.
INDUCTORS
1uH Ferrite On 24AWG Wire 4 FB1-FB4 TBD 10mm Pitch
INTEGRATED
CIRCUITS
18V 1A Regulator 1 U1 7818 Through Hole
-18V 1A Regulator 1 U2 7918 Through Hole
Dual Audio Op Amp 5 U3-U7 NE5532P DIL08 PY108
RELAY
5V 2A 2P2T Relay 1 RL1 ME2-5 Through Hole PY584
SWITCHES
2P2T Slide Switch 2 SW1-SW2 HS2264DN7DI-96B PCB Mount
2P2T Pushbutton Switch 1 SW3 T18 Z 08 PAA004 PY645
TRANSISTORS
-120V -100mA PNP Low Noise 24 Q1-Q8, Q10-Q17, Q21-Q22, Q24, Q26-Q30 2SA970GR TO92 PF075
-45V -100mA PNP Low Noise 5 Q9, Q18-Q19, Q23, Q25 BC557C TO92
30V 500mA NPN Darlington 1 Q20 MPSA14 TO92 PY1211
MISCELLANEOUS
M3 Nylon Insulating Bush 2 BS1-BS2 TO220
Copper Plated Screening Can 2 CA1-CA2 AP16603/1
2 Way SAN Solder in Cable
assembly 1 CA3 AP34397/X 2mm Pitch 2 way power cable
~23mm Height Heatsink for Phono
Stage Regs 1 HS1 AP15814/x AP Vendor
xxmm Long, 2mm dia,
2:1 ratio
UL Approved
Heatshrink 2mm 1 HS2 0.015M
24 AWG Tinned Link Wire 4 LK1-LK2, LK4-LK5 10mm Pitch
24 AWG Tinned Copper
Wire(None) 2 LK7-LK8 5mm Pitch
Mica Washer with
Thermal Compound 2 MI1-MI2
M3x8mm MC P/H Black Screw 2 SC1-SC2
M3x6mm MC P/H Black Screw 1 SC3
M3 Hex Nut 5.5 x 2.4mm 2 WS1-WS2
Ex Tooth Lock Washer 2 WS3-WS4

Service Manual
20
CP1/CP2
Main PCB
CP1 / CP2 - 7818 (U1)
CP1 / CP2 - 7918 (U2)
CP1 - NE5532 (U3 & U4 & U7)
CP2 - NE5532 (U3, U4, U5 & U6 & U7)
CP1 - 2SA970GR (Q1, 2, 3, 4)
CP2 - 2SA970GR (Q1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14,
15, 16, 17, 21, 22, 24, 26, 27, 28, 29, 30)
16
IC PINS
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