Page 1
introduction
No part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, for any purpose, without the express written p\
ermission of
International Audio Group Limited (IAG).
This manual is for the exclusive use of IAG, its approved distributors and approved
UK service agents.
No part of this manual shall be transferred to a third party without the written permission of I AG.
It is the responsibility of the user to ensure that all the information contained in this manual
is current. Notification for new issues of this manual and minor updates\
will be given via
the I AG web-site or on request.
This manual has been prepared with the greatest care, it is intended for\
information only
and no liability shall be accepted for errors or changes to specificatio\
n.
For further service information, parts lists and updates, please contact our web-site.
© 2005 International Audio Group Limited. All rights reserved.
Notification for new issues of this service manual will
be given via the Audiolab web site:-
issue number :- 2005/001/8000S G G
RRPP00000 00033..001
1
issue date :- September 04 2005 2255..0011..11999
9 9
9
Page 2
index
1.0 safety and servicing notes
1.1 Safety precautions ........................................................................\
............1
1.2 Electrostatic discharge precautions .............................................................1
1.3 Soldering........................................................................\
.........................1
2.0 front and rear panel layouts
2.1 Front panel controls ........................................................................\
..........3
2.2 Rear panel connections ........................................................................\
.....3
3.0disassembly instructions Pages 4 and 5 DELETED
4.0 functional tests
4.1 Test equipment required ........................................................................\
....6
4.2 Functional test procedure ........................................................................\
...7
5.0 performance tests
5.1 Test equipment required ........................................................................\
..11
5.2 Performance test procedure .....................................................................12
6.0 test points
6.1 Functional and performance test points .....................................................16
7.0 circuit schematics
7.1 Master schematic diagram (SCH267M-01-05) ...........................................17
7.2 Line amplifier left channel schematic (SCH26701-07-02) ............................18
7.3 Line amplifier right channel schematic (SCH26701-08-02) ..........................19
7.4 Power amplifier left channel schematic (SCH26701-09-02) .........................20
7.5 Power amplifier right channel schematic (SCH26701-10-02) .......................21
7.6 Power supplies schematic (SCH26701-01-02) ...........................................22
7.7 Protect and turn on schematic (SCH26701-06-02) .....................................23
7.8 Digital system controller schematic (SCH26701-02-01) ...............................24
7.9 Digital system interface schematic (SCH26701-03-01)................................25
7.10 Input interface schematic (SCH26701-04-04) ............................................26
7.11 Relay coils schematic (SCH26701-05-01) .................................................27
7.12 Front panel schematic (SCH26702-01-01) ................................................28
7.13 Speaker outputs schematic (SCH26703-01-01) ..........................................29
8.0 printed circuit board layout
8.1 Printed circuit board layout (top view) .......................................................30
8.2 Printed circuit board layout (bottom view)..................................................31
9.0 technical data
9.1 8000S Technical specifications ................................................................32
9.2 International standards ........................................................................\
....34
