Read Sony ICF-SC1 / ICF-SC1PC Service Manual online
MICROFILM
ICF-SC1/SC1PC
SERVICE MANUAL
PLL SYNTHESIZED SCANNING RECEIVER
SPECIFICATIONS
US Model
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)
(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
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
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)
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.
Ver 1.0
1998.03
– 2 –
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
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.
Explanation of IC Terminals .................................. 15
5-2.
Block Diagram ....................................................... 17
5-3.
Printed Wiring Boards – IF Section– ..................... 19
5-4.
Schematic Diagram – IF Section– ......................... 21
5-5.
Printed Wiring Boards – Microcomputer Section– 23
5-6.
Schematic Diagram – Microcomputer Section– .... 25
5-7.
Printed Wiring Boards – RF Section – ................... 27
5-8.
Schematic Diagram – RF Section (1/2) – .............. 39
5-9.
Schematic Diagram – RF Section (2/2) – .............. 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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
TABLE OF CONTENTS
– 3 –
SECTION 1
GENERAL
LOCATION AND FUNCTION OF CONTROLS
FRONT
This section is extracted from
instruction manual.
instruction manual.
– 4 –
SIDE/REAR
DISPLAY