File name Sony-ICFSC1_1PC rec.pdfICF-SC1/SC1PC
SERVICE MANUAL
Ver 1.0 1998.03
US Model
SPECIFICATIONS
Circuit system : Triple conversion superheterodyne Frequency range : 25.000 1300.000MHz (excluding cellular phone band : 823.980 849.020 MHz and 868.980 894.020 MHz) Detection mode : AM, NFM, WFM Speaker : Approx. 36 mm (1 7/16 inches) dia., 8 ohms Power output : 150mW(at 10% harmonic distortion Output : @ jack (monaural minijack) Power requirements : DC 6V, four size AA (R6) batteries External power source : DC 6V Dimensions : Approx. 64 x 177 x 44.3 mm (w/h/d) (2 5/8 x 7 x 1 3/4 inches) incl. projecting parts and controls, not including the helical antenna and the belt holder Mass : Approx. 252g (8.9 oz) Approx. 382g (13.5 oz) incl. alkaline batteries, helical antenna, and the belt holder Supplied Accessories AC power adaptor (1) Earphone (1) Belt holder (1) Helical antenna (1) Frequency guidebook (1) CD-ROM (1) (ICF-SC1PC only) Serial port connecting cable (1) (ICF-SC1PC only) Clamp filter (1) (ICF-SC1PC only) Design and specifications are subject to change without notice.
PLL SYNTHESIZED SCANNING RECEIVER
MICROFILM
TABLE OF CONTENTS
Specifications ... 1
1. GENERAL
Location and Function of Controls ... 3
2. DISASSEMBLY
2-1. Helical Antenna Removal ... 10 2-2. Cabinet (Rear) Assy Removal ... 10 2-3. Microcomputer Board, IF Board, RF Board Removal ... 11
3. TEST MODE ... 12 4. ELECTRICAL ADJUSTMENS ... 13 5. DIAGRAMS
5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. Explanation of IC Terminals ... Block Diagram ... Printed Wiring Boards IF Section ... Schematic Diagram IF Section ... Printed Wiring Boards Microcomputer Section Schematic Diagram Microcomputer Section ... Printed Wiring Boards RF Section ... Schematic Diagram RF Section (1/2) ... Schematic Diagram RF Section (2/2) ... 15 17 19 21 23 25 27 39 31
6. EXPLODED VIEW ... 35 7. ELECTRICAL PARTS LIST ... 36
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.
2
SECTION 1 GENERAL
LOCATION AND FUNCTION OF CONTROLS
FRONT
This section is extracted from instruction manual.
3
SIDE/REAR
DISPLAY
4
5
6
7
8
9
SECTION 2 DISASSEMBLY
Note : Follow the disassembly procedure in the nu |