– 2 –
TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
Setting Up the Base Phone .............................................
4
Preparing the Battery Pack .............................................
4
Entering Your Area Code ................................................
5
Making Calls ...................................................................
5
Receiving Calls ...............................................................
6
One-Touch Dialing ..........................................................
6
Speed Dialing ..................................................................
7
Phone Directory ..............................................................
7
Switching the Phones During a Call ...............................
8
Talking between the Phones (Intercom) .........................
9
Voice Paging ....................................................................
9
Transferring a Call ..........................................................
9
Understanding the Caller ID Service .............................. 10
Looking at the Caller ID List .......................................... 10
Using the Caller ID List .................................................. 11
Using “Caller ID with Visual Call Waiting” Service ..... 11
3.
DISASSEMBLY
......................................................... 12
4.
900 MHz SYSTEM OPERATION
4-1. Access Method ................................................................ 15
4-2. Protocol ........................................................................... 15
5.
TEST MODE
5-1. Base Unit ......................................................................... 18
5-2. Handset ............................................................................ 19
5-3. RF Testing ....................................................................... 20
6.
ELECTRICAL ADJUSTMENTS
6-1. Base Unit Section ............................................................ 22
6-2. Handset Section ............................................................... 23
7.
DIAGRAMS
7-1. Block Diagram – BASE UNIT Section (1/2) – .............. 27
7-2. Block Diagram – BASE UNIT Section (2/2) – .............. 29
7-3. Block Diagram – HANDSET Section – ......................... 31
7-4. Notes for Printed Wiring Boards
and Schematic Diagrams ................................................ 33
– BASE MAIN Board (Side A)/
BASE MICROPHONE Board – ..................................... 35
– BASE MAIN Board (Side B) – ................................... 37
7-7. Schematic Diagram – BASE MAIN Section (1/3) – ...... 39
7-8. Schematic Diagram – BASE MAIN Section (2/3) – ...... 41
7-9. Schematic Diagram – BASE MAIN Section (3/3) – ...... 43
7-10. Printed Wiring Board – BASE KEY Section – ............. 45
7-11. Schematic Diagram – BASE KEY Section – ................ 46
7-12. Printed Wiring Board – BASE LCD Section – ............. 47
7-13. Schematic Diagram – BASE LCD Section – ................ 48
7-14. Printed Wiring Board – HAND MAIN Section – ......... 49
7-15. Schematic Diagram – HAND MAIN Section – ............ 51
7-16. IC Pin Function Description ........................................... 55
8.
EXPLODED VIEWS
................................................ 61
9.
ELECTRICAL PARTS LIST
............................... 63
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED
LINE WITH MARK
!
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 PUB-
LISHED BY SONY.
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