Sony Icf 8 Service Manual

MICROFILM
SERVICE MANUAL
Ver 1.3  2000. 10
With SUPPLEMENT-1
(9-924-922-81)
With SUPPLEMENT-2
(9-924-922-82)
With SUPPLEMENT-3
(9-924-922-83)
ICF-8
FM/AM RADIO
ICF-8L
FM/LW RADIO
AEP Model
UK Model
ICF-8/8L
E Model
ICF-8
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.
SPECIFICATIONS
ICF-8/8L
Photo: ICF-8 

Ð 2 Ð
SECTION  1
GENERALThis section is extracted from
instruction manual. 

Ð 3 Ð
CABINET  (REAR)
MAIN  BOARD
Note: Follow the disassembly procedure in the numerical order given.
SECTION  2
DISASSEMBLY
2three screws
(P2 ´ 8)
8cabinet (rear)
3two claws
3two claws
47
telescopic antenna
1Remove the battery lid.
3two claws
6lug
5screw (B1.7 ´ 4)
9cabinet (front)
1Remove two solders
of the speaker leads.
4two claws
2battery terminal (–)
5MAIN board
A
3
battery terminal (+) CV1
Note:On installation MAIN board, 
turn CV1 shaft in the arrow A 
direction fully. 

Ð 4 Ð
DIAL  POINTER  SETTING
Note: Follow the assembly procedure in the numerical order given.
¥ POINTER
¥ KNOB  (TUNE)1pointer
5knob (TUNE)
4Insert the knob (TUNE) to the pointer 
fitting the two gear portion of the knob (TUNE) 
to the concave portion of the pointer.
3
hole
hole
knob (TUNE)
pointer 

Ð 5 ÐÐ 6 Ð
SECTION  3
ELECTRICAL  ADJUSTMENTS
PRECAUTION
¥ Adjustment should be performed in the order given.
0 dB=1 µV
[FM]
Setting:
BAND switch: FM
[AM/LW]
Setting:
BAND switch: AM/LW
¥ Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment Location: MAIN board (Component Side)
FM RF signal 
generator
22.5 kHz frequency 
deviation by 
400 Hz signal.
Output level: as low as possibleFM...

Ð 11 Ð
Ð 12 Ð
SECTION  5
EXPLODED  VIEW
¥ Items marked Ò*Ó are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
¥ The mechanical parts with no reference num-
ber in the exploded views are not supplied.
¥ Accessories and packing materials are given
in the last of the electrical parts list. NOTE:
¥ -XX and -X mean standardized parts, so they
may have some difference from the original
one.
¥ Color Indication of Appearance Parts...

Ð 13 Ð
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
MAIN
< JACK >
J1 1-770-666-11 JACK (@)
< COIL >
L1 1-754-018-11 ANTENNA, FERRITE-ROD (LW) (ICF-8L)
L1 1-754-019-11 ANTENNA, FERRITE-ROD (MW) (ICF-8)
L2 1-416-799-11 COIL, AIR-CORE (EXCEPT EE)
L2 1-416-800-11 COIL, AIR-CORE (EE)
L3 1-422-131-00 COIL, FM OSCILLATION (EXCEPT IT, EE)
L3 1-428-768-11 COIL, AIR-CORE (EE)
L3 1-460-018-11 COIL (WITH CORE)( IT)
L4 1-406-028-00 COIL, OSC (MW)
L5 1-416-459-11 COIL, AIR-CORE
L6 1-410-294-11...

Ð 14 Ð
ICF-8/8L
Sony Corporation
Personal A&V Products Company9-924-922-11
98F0565-1
Printed in Japan  © 1998. 6
Published by Quality Engineering Dept.
(Shibaura)