– 2 –
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 PUBLISHED BY SONY.
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.
1. GENERAL
.......................................................................... 3
2. DISASSEMBLY
2-1. Battery Case Lid ................................................................... 7
2-2. Cabinet (Rear) ....................................................................... 7
2-3. Hand Main Board .................................................................. 7
3. TEST MODE
....................................................................... 8
4. ELECTRICAL ADJUSTMENTS
............................... 13
5. DIAGRAMS
5-1. Block Diagrams
• Base Unit Section ............................................................. 15
• Handset Section ................................................................ 17
5-2. Printed Wiring Board – Base Unit Section – ...................... 21
5-3. Schematic Diagram – Base Unit Section – ......................... 23
5-4. Schematic Diagram – Handset Section – ........................... 25
5-5. Printed Wiring Board – Handset Section – ......................... 27
5-6. IC Pin Function Description ............................................... 29
6. EXPLODED VIEWS
6-1. Handset Section .................................................................. 31
6-2. Base Unit Section ................................................................ 32
7. ELECTRICAL PARTS LIST
........................................ 33
TABLE OF CONTENTS
