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SPP-A941 SERVICE MANUAL Ver 1.2 2003.07 US Model Canadian Model SPECIFICATIONS CORDLESS TELEPHONE WITH ANSWERING SYSTEM 9-927-600-13 2003G05-1 C 2003.07 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation TABLE OF CONTENTS 1. GENERAL Identifying the Parts ... Setting Up the Base Unit ... Preparing the Battery Pack ... Making Calls ... Receiving Calls ... 3 4 4 5 5 Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 2. 3. 4. DISASSEMBLY ... 11 TEST MODE ... 13 ELECTRICAL ADJUSTMENTS Base Unit ... 14 Handset ... 16 ATTENTION AU COMPOSANT AYANT RAPPORT А LA SЙCURITЙ! LES COMPOSANTS IDENTIFIЙS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHЙMATIQUES ET LA LISTE DES PIИCES SONT CRITIQUES POUR LA SЙCURITЙ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIИCES SONY DONT LES NUMЙROS SONT DONNЙS DANS CE MANUEL OU DANS LES SUPPLЙMENTS PUBLIЙS PAR SONY. 5. 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14. 5-15. 5-16. DIAGRAMS Block Diagram ­ BASE UNIT Section (1/2) ­ ... Block Diagram ­ BASE UNIT Section (2/2) ­ ... Block Diagram ­ HANDSET Section ­ ... Note for Printed Wiring Boards and Schematic Diagrams ... Printed Wiring Board ­ BASE RF Board ­ ... Schematic Diagram ­ BASE RF Board ­ ... Printed Wiring Board ­ BASE MAIN Board ­ ... Schematic Diagram ­ BASE MAIN Board ­ ... Printed Wiring Board ­ BASE I-TAD Board ­ ... Schematic Diagram ­ BASE I-TAD Board ­ ... Printed Wiring Board ­ BASE KEY Board ­ ... Schematic Diagram ­ BASE KEY Board ­ ... Printed Wiring Boards ­ HAND RF/MAIN Boards ­ ... Schematic Diagram ­ HAND RF Board ­ ... Schematic Diagram ­ HAND MAIN Board ­ ... IC Pin Function Description ... 17 19 21 23 23 25 27 29 32 33 35 36 37 39 41 45 6. 7. EXPLODED VIEWS