ICF-B01 (serv.man2) - Sony Audio Service Manual (repair manual)

1

Taiwan Model

Frequency range

FM: 87.5 – 108 MHz
AM: 530 – 1,710 kHz

Speaker

Approx. 3.6 cm (1 

7/16

 in) dia., 8 

Ω

Output

v

 jack (

φ3.5 mm, minijack)

Power output

60 mW (Using the built-in rechargeable
battery)
90 mW (Using R03 (siza AAA) dry batteries,
not supplied)

Power requirements

Built-in Nickel Metal Hydride (2.4 V,
700 mAh, Ni-MH) battery or 3 V DC, two R03
(size AAA) dry batteries

Dimensions

Approx. 130 

× 77 × 52 mm (w/h/d)

(5 

1/8

 

× 3 

1/8

 

× 2 

1/8

 in)

Mass

Approx. 285 g (10.1 oz)
Approx. 297 g (10.5 oz) (incl. batteries)

Supplied accessory

Hand strap (1)

2007F04-1

© 2007. 06

• Self-Powered emergency radio for disaster preparedness
• You can use the radio anytime by turning the Power Generator handle

to charge the built-in rechargeable battery.
— Self power-generating function

• Uses R03 (size AAA) dry batteries (not supplied)
• Two types of useful LED lights (Flashlight/Soft light) equipped
• Splash proof for all weather operation

*

Do not immerse in water

This product is designed to be splash proof, but should not be im-
mersed in water or come in continuous contact with water.
Before installing the batteries, be sure to wipe off drops of water on
the unit.

2

Location of Controls ................................................................ 3

................................................................ 5

3-1.   Window (Diffusion) ............................................................ 7
3-2.   Panel (L) Assy ..................................................................... 8
3-3.   Panel (R) .............................................................................. 8
3-4.   Cabinet (Rear) Section ........................................................ 9
3-5.   DYNAMO Assy (M1) ......................................................... 9
3-6.   Main Board Section .......................................................... 10
3-7.   JACK Board ...................................................................... 10
3-8.   MAIN Board, LED Board ................................................. 11
3-9.   Pointer Setting ................................................................... 11

................................. 12

5-1.   Printed Wiring Boards — Main Section — ...................... 14
5-2.   Printed Wiring Board — Sub Section — .......................... 15
5-3.   Schematic Diagram ........................................................... 16

6-1.   Main Section ..................................................................... 18
6-2.   Cabinet (Front) Section ..................................................... 19
6-3.   Cabinet (Rear) Section ...................................................... 20
6-4.   Main Board Section .......................................................... 21

........................................ 22

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

z

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)

Unleaded solder has the following characteristics.
• 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 heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

This model is used two ceramic filters of CF2 and CF3.
You must use same type of color marked ceramic filters in order to
meet same specifications.
Therefore, the ceramic filter must change two pieces together since
it’s supply two pieces in one package as a spare parts.

mark1

mark2

Center
Frequency

red

10.70 MHz

blue

10.67 MHz

orange

10.73 MHz

black

10.64 MHz

white

10.76 MHz

white

white

10.75 MHz

yellow

10.79 MHz

mark1 mark2

mark1 mark2

CF2

CF3

3

This section is extracted
from instruction manual.

A

B

v

g

g

g

#

C

rechargeable battery (see fig. A)

You may charge the built-in rechargeable battery and listen to the radio.

Pull out the 

 handle.

To charge, turn the handle one way to either direction.

Turn the handle slowly in the beginning, and speed up the turning little by
little. Then, keep turning the handle continuously at the speed that lights the

 indicator in green.

When you charge, the built-in rechargeable battery will be charged regardless
of the setting of the 

 switch.

• Be sure to fold in the telescopic antenna when charging. If you leave the

telescopic antenna unfolded, the telescopic antenna may hit the surroundings
and it is dangerous.

• If you turn the 

 handle while listening to the radio,

there may be a noise interference. In this case, turn off the radio and then
charge the battery.

When you turn the handle, the power generation starts and charges the built-in
rechargeable battery. The generation capacity may vary depending on the speed.
At first, turn the handle slowly and then speed up the turning little by little and
the 

 indicator will light up. Keep on turning the handle for 1 minute

at the speed that lights the 

 indicator in green, which will be up to

60 minutes* of listening to the radio. Use this as an charging standard.
Even when you turn the handle at the speed that the

 indicator does not

light, it will charge the built-in rechargeable battery and you may listen to the
radio. 

* For AM radio reception and up to 40 minutes for FM radio reception. The

listening time may differ depending on the operation of the unit.

The sound will become weak and distorted.
If this occurs, turn the 

 handle to charge the

rechargeable battery.

• When you use the rechargeable battery for the first time, after a long period of

time of disuse, leaving the power on for a long time or the rechargeable battery
is exhausted, the battery life may be short even after charging it.
In this case, charge (for more than a minute) and discharge the battery several
times. The battery life will be restored.

• If the rechargeable battery capacity becomes half the normal life, please consult

the nearest Sony dealer.

Installing the dry batteries (see fig. B)

Insert two R03 (size AAA) batteries (not supplied).

Open the lid as illustrated.

Insert two R03 (size AAA) batteries with correct polarity.

Close the lid of the battery compartment.

When the dry batteries become weak, the sound will become weak and distorted.
Replace both dry batteries with new ones.

Set the 

 switch to the source you want to use.

Check the rechargeable battery and the dry batteries once a year.

Turn the 

 handle to charge, then confirm that you

can listen to the radio.

Turn on the radio to confirm if the sound is not weak or distorted.

(Approx. minutes)

Built-in rechargeable battery

40*

2

60*

2

15

When charged for 1 minute*

1

*

1

When turning the 

 handle, turn it at the speed that

keeps the 

indicator lit green (approx. 120 cranks per minute).

*

2

at power output approx. 1 mW

(Approx. hours)

Sony alkaline LR03

40 (JEITA*

3

)

50 (JEITA*

3

)

30

(size AAA)

*

3

Measured by JEITA (Japan Electronics and Information Technology
Industries Association) standards. The actual battery life may vary depending
on the circumstances.

4

(see fig. C)
1

Insert the left claw of the battery compartment lid into the hole on
the left side of the battery compartment.

Slide the right side of the lid into the right side hole of the battery
compartment.

Snap the inner lid into the battery compartment lid.

The inner lid is designed to snugly fit the unit. To open the inner lid, turn the
unit over and let it drop open.

You can listen to the radio by the speaker or a separately sold earphone.

Set the 

 switch to choose the power source.

Turn on the radio and select 

 or 

 with power.

Tune in to a station with 

.

When the station is tuned in, the 

 indicator lights up in red.

Adjust volume using 

.

Set power to 

.

: Extend the telescopic antenna and adjust the length,

angle and direction to obtain optimum reception.

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.

: Rotate the unit horizontally for optimum

reception. A ferrite bar antenna is built in
the unit.

Connect the earphone (not supplied) to v (earphone) jack.
When the earphone is connected, the speaker will not emit sound.

• When the earphone is not connected to the v (earphone) jack, be sure to close

the earphone cover. If you do not close the earphone cover, the unit will not be
splash proof.

• When using an earphone, be careful not to expose the unit to water.

v