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WORLD HEADQUARTERS

CANADA U.S.A.
Yorkville Sound Yorkville Sound Inc.
550 Granite Court 4625 Witmer Industrial Estate
Pickering, Ontario Niagara Falls, New York
L1W-3Y8 CANADA 14305 USA
Voice: (905) 837-8481 Voice: (716) 297-2920
Fax: (905) 837-8746 Fax: (716) 297-3689

Yorkville

Quality and Innovation Since 1963

Printed in Canada

Yorkville

AP 800

PROFESSIONAL SERIES

1. Parts List
2. Power Amplifier Board
- M1088 Schematic
- M1088 PCB layout
3. Pat Board
0 M1090 Schematic
- M1090 PCB layout
4. Power Supply Board

- M1091 Schematic
- M1091 PCB layout

5. CE Wiring

5. Contact Information

SERVICE MANUAL

s-ap800.pdf v.3.1 8/2001

Page 2

IMPORTANT SAFETY INSTRUCTIONS

l0

CAUT N A VIS
RISK OF ELECTRIC SHOCK
NOT OPEN
RllelE DE CHOC ELECTRIQUE
NE PAS OUVRIR

INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK, OR
INJURY T0 PERSONS.

CAUTION:

DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

Read Instructions:

The Owner's Manual should be read and understood
before operation of your unit. Please, save these
instructions for future reference.

Packaging:
Keep the box and packaging materials, in case the unit
needs to be returned for service.

Warning:
When using electric products, basic precautions should
always be followed, including the following:
Power Sources:
Your unit should be connected to a power source only of the
voltage specified in the owners manual or as marked on the unit.
This unit has a polarized plug. Do not use with an extension cord or
receptacle unless all three blades can be fully inserted to prevent

blade exposure. Precautions should be taken so that the grounding
scheme on the unit is not defeated.

Power Cord:

The AC supply cord should be routed so that it is unlikely that it will
be damaged. If the AC supply cord is damaged DO NOT
OPERATE THE UNIT.

Service:
The unit should be serviced only by qualified service personnel.

INSTRUCTIONS RELATIVES A U
RISOUE DE FEU, CHOC ELECTRIOUE,
0U BLESSURES AUX PERSONNES.

, AFIN DE REDUIRE LES RISQUE DE CHOC
ELECTRIQUE, N'ENLEVEZ PAS LE COUVERT (0U
NE CONTIENT AUCUNE

PIECE REPARABLE PAR L'UTILISATEUR.

CONSULTEZ UN TECHNICIEN
QUALIFIE POUR L'ENTRETIENT.

Veuillez lire le manuel:

II contient des informations qui devraient étres comprises
avant I'opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures

Emballage:
Conservez Ia boite au cas ou I'appareil devait étre
retourner pour reparation.

Warning:

Attention: Lors de l'utilisation de produits électrique,
assurez»vous d'adherer a des precautions de bases
inciuant celle qui suivent:

Aiimentation:

Lappareil ne doit etre branche qu'a une source d'alimentation
correspondant au voltage specifie dans le manuel ou tel quindique
sur l'appareil. Cet appareil est equipe dune prise dalimentation
polarisee. Ne pas utiliser cet appareil avec un cordon de
raccordement a moins qu'il soit possible dinserer completement
les trois lames. Des precautions doivent etres prises afin d'eviter
que le systeme de mise a la terre de lappareil ne soit desengage.

Cordon d'alimentation:
Evitez d'endommager le cordon d'alimentation. N'UTILISEZ PAS
L'APPAREIL si le cordon d'alimentation est endommage.

Service:
Consultez un technlclen qualifle pour lentretien de votre apparell.

saIeJ/S doc Version 3.5 Mar 98

AP800 Parts List 8/19/98