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340A SE SERVICE MANUAL
TABLE OF CONTENTS
Safety Precautions & Important Notes
3
Exploded Drawing
4
Exploded Drawing Parts List
5
Amplifier PCB Schematic (Tone Control)
6
Amplifier PCB Schematic (Power Supplies)
7
Amplifier PCB Schematic (Power Amplifier)
8
Amplifier PCB Schematic (Ipod Input Circuit)
9
Amplifier PCB Schematic (Input Select)
10
Amplifier PCB Board Layout (Top Side)
11
Amplifier PCB Board Layout (Bottom Side)
12
PCB Main Assembly BOM
13-14
Microcontroller PCB Schematic
15
Microcontroller PCB Board Layout (Top Side)
16
Microcontroller PCB Board Layout (Bottom Side)
17
Front Panel PCB Assembly BOM
18
IC Pin Layout Details
19-20
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SAFETY PRECAUTIONS & IMPORTANT NOTES
1. Check that the rear of the pro duct indicates the correct s upply voltage for
your area.
2. The lighting flash with the arrowhead within an equilateral
triangle is in tended to alert the user o r service agent to the
presence of dangerous voltages within the product enclosure that
may be of sufficient magnitude to co nstitute a ris k of electric shock
to persons.
3. The exclamation poin t within an e quilateral triangle is inte nded
to alert the user or service agent to the presence of important
operating and maintenance (Servicing) instruction s in the liter ature
accompanyi ng the appliance.
4. This product complies with EEC Low Voltage (73/23/EEC) and
Electromagnetic Compatibility (89/336/EEC) Directives when used and serviced
in accordance with this manual. Fo r continued compliance all components
marked safety and EMC critical must only be repl aced by Cambridge Audio
approved pa rts.
5. Any unauthorised design alteratio ns or additio ns will void the manufact urers
warranty; furthermore the manufact urer canno t accept responsibili ty for personal
injury or property damage resulting therefrom.
6. When ser vicing, care should be ta ke n to observe the origi nal routing a nd
dressing of the leads and it should be conf irmed that they have been retur ned to
normal after re-assembly .
Notes on chi p component replac ement
Never reuse a com ponent that has been removed from a PCB
Notice that the minus side of a tantal um capacitor may be damaged by heat
COPYRIGHT NOTICE.
© 2006 Audio Pa rtne rship PLC. All righ ts rese rved.
Cambridge Au dio and Azur are regi stered tradem arks for Audio P artnership PLC. Thi s document
may not be reproduced, dist ribute d, transmitted, displayed, publis hed, or broadcast without the
express written prior permission of Audio P artnership P LC.
Alteration or r emoval of any trademar k, copyrigh t, or other notice from this content is prohibited.
Information provided in this docume nt is provided solely for the use of official service ag ents in
repairing and servicing Audi o Partne rship PLC pro ducts.
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