Read Sony ICF-CA2 Service Manual online
ICF-CA2
E Model
SERVICE MANUAL
FM/AM CLOCK RADIO
SPECIFICATIONS
Frequency range
FM
:
76 – 108 MHz
AM
:
530 – 1,710 kHz
Speaker
Approx. 5.7 cm (2
1
/
4
in.) dia. 8
Ω
Power output
100 mW
Power requirements
Radio
:
1.5 V DC battery (R6)
× 2
Clock
:
1.5 V DC battery (R6)
× 1
Power Auto Off function
Approx. 80 minutes
Dimensions
Approx. 94
× 97 × 87
mm (w/h/d)
(3
1
/
4
×
3
1
/
7
×
3
1
/
2
in) incl. projecting parts and controls
Mass
Approx. 390 g (14 oz.) incl. batteries
Desighn and specifications are subject to change without notice.
Ver 1.0 2000. 04
— 2 —
TABLE OF CONTENTS
1. GENERAL
·········································································· 2
2. DISASSEMBLY
2-1.
CABINET (REAR) AND CLOCK ···································· 3
2-2.
KNOB (TUN) (BAND) (VR) ············································· 4
2-3.
MAIN BOARD ·································································· 4
3. ADJUSTMENT
································································· 6
4. DIAGRAM
4-1.
IC Block Diagram ······························································ 7
4-2.
Printed Wiring Board ·························································· 8
4-3.
Schematic Diagram ···························································· 9
5. EXPLODED VIEWS
······················································ 11
6. ELECTRICAL PARTS LIST
······································· 12
SECTION 1
GENERAL
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
This section is extracted
from instruction manual.
from instruction manual.
— 3 —
SECTION 2
DISASSEMBLY
Note :
Follow the disassembly procedure in the numerical order given.
•
The equipment can be removed using the following procedure.
2-1.
CABINET (REAR) AND CLOCK
knob (tun) (band) (vr)
Cabinet (rear) and clock
Set
Main board
• NOTE ON INSTALLING CONNECTION CORD
2
Knob (TIME SET)
3
Two screws
(P3 x 16)
4
Cabinet (rear)
1
Lid, battery case
7
Clock
(It has a claw)
6
CN1 (6P)
Claws
5
Connection cord
Clock
To Main board
CN1.
CN1.
— 4 —
2-2.
KNOB (TUN) (BAND) (VR)
2-3.
MAIN BOARD
1
Knob (TUN)
2
Knob (BAND)
3
Knob (VR)
Knob (TUN)
1
Screw (M2.6 x 5)
2
Main board