Read Sony ICF-F11S / ICF-F12S Service Manual online
SERVICE MANUAL
Published by Sony Techno Create Corporation
Sony Corporation
Audio&Video Business Group
ICF-F11S/F12S
SPECIFICATIONS
FM/SW/MW 3 BAND RADIO
9-887-911-03
2008J05-1
©
2008.10
E Model
Ver. 1.2 2008.10
Frequency range:
Band
ICF-F11S
ICF-F12S
FM
87.5-108 MHz
87.5-108 MHz
MW
530-1 605 kHz
530-1 605 kHz
SW
2.3-7.35 MHz
5.9-18 MHz
Speaker
Approx. 9.2 cm (3
5
/
8
inches) dia., 4
Ω
Output
v (earphone) jack (ø3.5mm minijack)
Power output
300 mW (max)
Power requirements
3V DC, two R20 (size D) batteries
Dimensions
Approx. 216
× 129.8 × 68.6 mm (w/h/d)
(8
5
/
8
× 5
1
/
8
× 2
3
/
4
inches) incl. projecting parts and
controls
Mass
Approx. 676 g (1 lb 8 oz) incl. carrying strap and
batteries
batteries
Supplied accessories
carrying strap (1)
Design and specifications are subject to change
without notice.
without notice.
Notes on chip component replacement
•
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
Photo: ICF-F12S
Refer to SUPPLEMENT-1 for printed wiring board, schematic di-
agram and electrical parts list of ICF-F12S: Saudi Arabia model.
When repairing the set of ICF-F11S and ICF-12S: E model, refer
to either of original service manual/SUPPLEMENT-1 according
to the set.
agram and electrical parts list of ICF-F12S: Saudi Arabia model.
When repairing the set of ICF-F11S and ICF-12S: E model, refer
to either of original service manual/SUPPLEMENT-1 according
to the set.
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WITH MARK 0 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.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ICF-F11S/F12S
2
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to fl ow)
Unleaded solder is more viscou-s (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic fi lters of CF1 and CF3.
You must used same type of color marked ceramic fi lters in order
to meet same specifi cations.
Therefore, the ceramic fi lter must be changed two pieces together
since it’s supply two pieces in one package as a spare parts.
This model is used two ceramic fi lters of CF1 and CF3.
You must used same type of color marked ceramic fi lters in order
to meet same specifi cations.
Therefore, the ceramic fi lter must be changed two pieces together
since it’s supply two pieces in one package as a spare parts.
Mark
Center frequency
red
10.70 MHz
blue
10.67 MHz
orange
10.73 MHz
black
10.64 MHz
white
10.76 MHz
CF3
mark
CF1
A
B
Telescopic antenna
Antena telescópica
Antena telescópica
FM
MW
SW
R20 (size D)
× 2
R20 (tamaño D)
× 2
Insert the
E side of the battery first.
Inserte primero el lado
E de la pila.
Rear
Parte posterior
Parte posterior
Installing the
batteries
batteries
(See fig.
A)
1
Open the battery compartment lid.
2
Install two R20 (size D) batteries (not
supplied) with correct polarity.
supplied) with correct polarity.
3
Close the lid.
Battery life (Approx. hours)
(JEITA*)
When using
FM
SW
MW
Sony R20 (size D)
200
220
220
* Measured by JEITA (Japan Electronics and
Information Technology Industries Association)
Standards. The actual battery life may vary
depending on the circumstance of the unit.
Standards. The actual battery life may vary
depending on the circumstance of the unit.
When to replace the batteries
When the sound becomes weak or distorted, replace
all the batteries with new ones.
When the sound becomes weak or distorted, replace
all the batteries with new ones.
Notes on batteries
• Do not charge the dry batteries.
• Do not carry the dry batteries with coins or other
• Do not charge the dry batteries.
• Do not carry the dry batteries with coins or other
metallic objects. It can generate heat if the positive
and negative terminals of the batteries are
accidentally contacted by a metallic object.
and negative terminals of the batteries are
accidentally contacted by a metallic object.
• Do not use different types of batteries at the same
time.
• When you replace the batteries, replace all with new
ones.
• When you are not going to use the unit for a long
time, remove the batteries to avoid damage from
battery leakage and corrosion.
battery leakage and corrosion.
Improving the
reception
reception
(See fig.
B)
FM: Extend the telescopic antenna and adjust the
angle for optimum reception.
MW: Rotate the unit horizontally for optimum
reception. A ferrite bar antenna is built into the
unit.
unit.
SW: Extend the telescopic antenna vertically.
Note
Adjust the direction of the
antenna by holding the bottom of
it. The antenna can be damaged
when you move the antenna with
excessive force.
Adjust the direction of the
antenna by holding the bottom of
it. The antenna can be damaged
when you move the antenna with
excessive force.
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
ICF-F11S/F12S
3
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
3-2. REAR CABINET BLOCK
3-2. REAR CABINET BLOCK
(Page
(Page
3)
3-3. MAIN BOARD, GEAR (VC)
(Page
(Page
4)
3-5. GEAR (VC) AND MAIN BOARD SETTING
(Page
(Page
5)
3-4. TELESCOPIC
ANTENNA
(ANT1),
BATTERY CASE LID, CABINET (REAR)
(Page
4)
SET
Open the battery case lid.
three claws
antenna cable
terminal board
(antenna)
(antenna)
Remove a
solder.
solder.
screw
rear cabinet block
screw
ICF-F11S/F12S
4
3-3. MAIN BOARD, GEAR (VC)
two screws
MAIN board
Remove a solder.
Remove two solders.
gear (VC)
Remove a solder.
3-4. TELESCOPIC ANTENNA (ANT1), BATTERY CASE LID, CABINET (REAR)
terminal board (antenna)
two bosses
cabinet (rear)
telescopic antenna (ANT1)
battery case lid
battery case lid
screw
(M3
(M3
× 6)
cushion
(battery)
(battery)
cabinet (rear)