Sony ICF-R45 / ICF-T45 Service Manual ▷ View online
ICF-R45/T45
SERVICE MANUAL
TV (1–3ch) • FM/AM RADIO
SPECIFICATIONS
Tourist Model
Ver 1.0 2003.05
9-877-345-01
2003E02-1
© 2003.05
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
Photo: ICF-T45
Frequency range
FM: 76.0–108 MHz (TV1–3ch* )
AM: 530–1 605 kHz
AM: 530–1 605 kHz
Speaker
Approx. 2.8 cm ( 1 1⁄8 inches) dia., 7.2
Ω
Output
v
(earphone) jack
(ø 3.5 mm, minijack)
Power output
80 mW
Power requirement
3 V DC, two R03 (size AAA) batteries
Auto power off function
Approx. 110–130 minutes
Dimensions
Approx. 56 x 91.6 x 13 mm (including projecting parts)
(2
(2
1
⁄
4
x 3
5
⁄
8
x 1
7
⁄
32
inches) (w/h/d)
Approx. 55 x 91 x 12.4 mm (not including projecting parts)
(2
(2
1
⁄
4
x 3
5
⁄
8
x
1
⁄
2
inches) (w/h/d)
Mass
Approx. 71 g (2.5 oz) incl. batteries (R45)
Approx. 69 g (2.4 oz) incl. batteries and earphone (T45)
* Received only in Japan.
Approx. 69 g (2.4 oz) incl. batteries and earphone (T45)
* Received only in Japan.
Accessories supplied
Sony R03 (Size AAA) batteries (2) (for trial*)
Carrying case (1)
Earphone (1) (T45)
Earpad (1)
Carrying case (1)
Earphone (1) (T45)
Earpad (1)
* The supplied batteries are for initial trial use only. Alkaline batteries,
such as Sony alkaline LR03 (size AAA), are recommended.
such as Sony alkaline LR03 (size AAA), are recommended.
Design and specifications subject to change without notice.
ICF-R45/T45
2
Specifications ............................................................................ 1
1. GENERAL
Locating the Controls ......................................................... 3
2. DISASSEMBLY
2-1. Cabinet (Front) ASSY ................................................ 4
2-2. Jack Board, Main Board (R45) ................................... 4
2-3. Jack Board, Main Board (T45) ................................... 5
2-2. Jack Board, Main Board (R45) ................................... 4
2-3. Jack Board, Main Board (T45) ................................... 5
3. ELECTRICAL ADJUSTMENS
............................... 6
4. DIAGRAMS
4-1. Printed Wiring Boards ................................................ 9
4-2. Schematic Diagram ................................................... 10
4-2. Schematic Diagram ................................................... 10
5. EXPLODED VIEWS
5-1. ICF-R45 ..................................................................... 11
5-2. ICF-T45 .................................................................... 12
5-2. ICF-T45 .................................................................... 12
6. ELECTRICAL PARTS LIST
................................... 13
TABLE OF CONTENTS
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
z
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 the lead free mark due to their particular size.)
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
• 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
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!
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to
flow) than ordinary solder so use caution not to let solder
bridges occur such as on IC pins, etc.
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.
may also be added to ordinary solder.
3
ICF-R45/T45
SECTION 1
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
instruction manual.
v
/
5
Earphone
v
jack
AUTO WIND
POWER
TUNE
BAND
TUNE
indicator
VOL
*
*
There is a tactile dot
beside VOL to show
the direction to turn up
the volume.
the direction to turn up
the volume.
NOISE CUT
R45
T45
VOL
*
POWER
TUNE
TUNE
indicator
Earphone
v
jack
v
/
5
NOISE CUT
BAND
*
There is a tactile dot
beside VOL to show
the direction to turn
up the volume.
ICF-R45/T45
4
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (FRONT) ASSY
2-2. JACK BOARD, MAIN BOARD (R45)
9
8
Claw
R45
T45
2
Claw
3
Claw
4
Claw
5
Claw
6
Claw
1
Three screws (1.7)
7
Claw
Cabinet (rear) ASSY
Cabinet (front) ASSY
6
5
2
Holder (jack)
JACK board
3
Remove solder (two places)
1
Remove solder (four places)
4
Remove solder (two places)
MAIN board
Cabinet (front) ASSY
Cabinet (rear) ASSY
JACK board, MAIN board
Cabinet (front) ASSY
Set
z
The equipment can be removed using the following procedure.
Note on Assembling: On attaching rear cabinet, put S1 and its knob (v/5),
S3 and its knob (FM/AM), S5 and its knob (NOISE
CUT) together.
CUT) together.