DOWNLOAD Sony ICF-C318 Service Manual ↓ Size: 496.99 KB | Pages: 16 in PDF or view online for FREE

Model
ICF-C318
Pages
16
Size
496.99 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c318.pdf
Date

Sony ICF-C318 Service Manual ▷ View online

ICF-C318
E Model
Australian Model
SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
9-887-638-03
2011D05-1
© 2011.04
SPECIFICATIONS
Ver. 1.2  2011.04
FM/AM CLOCK RADIO
Time display
Model for Singapore and Argentine: 24-hour system
Model for Australian and Central & South American: 12-hour system
Frequency range
Band
Frequency
FM
87.5 – 108 MHz
AM
530 – 1 710 kHz
Speaker
Approx. 6.6 cm (2 
5
/
8
 inches) dia., 8 
Power output
150 mW (at 10% harmonic distortion)
Power requirements
Model for Central & South American: 120 V AC, 60 Hz
Model for Singapore: 230 - 240 V AC, 50 Hz
Model for Argentine: 220 - 230 V AC, 50 Hz
For power backup: 3 V DC, one CR2032 battery
Model for Australian: 230 V AC, 50 Hz
Dimensions
Approx. 155 
× 82.8 × 151.5 mm (w/h/d)
(6 
1
/
8
 
× 3 
3
/
8
 
× 6 inches) incl. projecting parts and controls
Mass
Model for Singapore, Argentine and Central & South American
                                  : Approx. 482 g (1 lb 1 oz) incl. CR2032 battery
Model for Australian: Approx. 522 g (1 lb 2.4 oz) incl. CR2032 battery
Design and specifications are subject to change without notice.
2
ICF-C318
SAFETY-RELATED COMPONENT 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 WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
TABLE OF CONTENTS
1.
GENERAL
Locating the Controls ......................................................
3
2.
DISASSEMBLY
2-1. Disassembly Flow ....................................................
5
2-2. Upper Cabinet assy, Front Panel ..............................
5
2-3. MAIN Board ............................................................
6
Power Cord and Pointer Installation ...............................
6
3.
ELECTRICAL  ADJUSTMENTS
.........................
7
4.
DIAGRAMS
4-1. Printed Wiring Board ...............................................
9
4-2. Schematic Diagram .................................................. 10
5.
EXPLODED  VIEWS
................................................ 12
6.
ELECTRICAL  PARTS  LIST
................................ 13
• HOW TO CHANGE THE CERAMIC FILTER
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 package as a spare parts.
mark
mark
CF3
CF2
red
blue
orange
black
white
10.70MHz
10.67MHz
10.73MHz
10.64MHz
10.76MHz
Mark
Center
frequency
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.
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
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 viscous (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.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Accessories are given in the last of the electrical parts list.
3
ICF-C318
SECTION 1
GENERAL
This section is extracted
from instruction manual.
LOCATING THE  CONTROLS
BAND
ALAR
M
TIM
E S
ET
AM
FM
BRIGHTNESS
RADIO
ALARM RESET 
DATE SLEEP 
OFF
/
OFF
SLEEP
DST
AM
BUZZER
RADIO
BUZZER
RADIO
ALARM
B
CLOCK
DST
ON
SNOOZE
ALARM
A
PM
A
B
OFF
OFF
ALARM
TIME SET
BAND
AM FM
VOLUME
TUNING
ALARM
TIME SET
HIGH
ALARM   VOLUME
LOW
ALARM
*
There is a tactile dot beside
VOLUME to show the direction to
turn up the volume.
Battery
compartment
FM wire antenna
AC power cord
Display window
*
 (12-hour system)
* The display differs depending on your country.
4
ICF-C318
Setting the clock
and date
Set the clock and date according to the following steps.
1
Plug in the unit.
The display will flash “AM 12:00” or “0:00”.
2
Press CLOCK for more than 2 seconds.
You will hear a beep and the year will start to
flash in the display.
3
Press + or  until the correct year appears
in the display.
4
Press CLOCK.
5
Repeat steps 3 and 4 to set the month, day
and time.
After setting the time, two short beep sound and
the clock starts from 0 seconds.
• Pressing and holding 
+
 or 
 changes the year, month
or day rapidly.
When setting the current time, time changes rapidly
by 1 minute-increments up to 10 minutes, and then
by 10 minute-increments.
• The clock system varies depending on the model
you own.
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight
• While setting the clock, you must perform each step
within 65 seconds, or the clock setting mode will be
cancelled.
To display the year and date
Press SNOOZE/DATE/SLEEP OFF once
for the date, and within about 3 seconds press it
again for the year.
The display shows the date or year for about 3
seconds and then changes back to the current time.
If you connect the AC plug to AC outlet while this
unit is powered from the backup power source, the
current date and time appears in the following order.
(It is same as when the unit is powered on after the
power failure.)
“month and date” (about 1 second) t “year” (about 1
second) t “current time”
To change the display to the
daylight saving time (summer
time) indication
Press DST.
DST indicator appears in the display and the time
indication changes to the daylight saving time
(summer time).
To deactivate the daylight saving time (summer time)
adjustment, press 
DST
 again.
Setting the
brightness of the
display
Three levels of brightness are available by
pressing BRIGHTNESS.
High (default) t Middle t Low
Operating the radio
1
Press RADIO ON to turn on the radio.
2
Adjust volume using VOLUME.
3
Select BAND.
4
Tune in to a station using TUNING.
To turn off the radio
Press RADIO OFF/ALARM RESET.
Improving the
reception
FM
:
Extend the FM wire antenna fully to increase
reception sensitivity.
AM
:
Rotate the unit horizontally for optimum reception.
A ferrite bar AM antenna is built-in to the unit.
Do not operate the unit over a steel desk or metal
surface, as this may lead to interference of reception.
Setting the alarm
The dual alarm function allows you to set two alarm
programs (ALARM A and ALARM B).
The alarm time can be set for each program and the
alarm sound is selectable from RADIO or BUZZER.
Notes
• Before setting the alarm, make sure to set the clock
(see “Setting the clock and date”).
• The factory setting alarm time is “PM 12:00” or “12:00”.
• To set the radio alarm, first tune in to a station and
adjust the volume (see “Operating the radio”).
• When you set the buzzer alarm, set 
ALARM
VOLUME
 to 
LOW
 or 
HIGH
.
To set the alarm time
1
Set ALARM A (or B) to the desired
alarm sound (RADIO or BUZZER).
The alarm time appears for a few seconds, and
then the 
ALARM
 A (or B) indicator lights up in the
display. (It does not appear when the switch is set
to 
OFF
.)
2
Turn ALARM TIME SET A (or B) +
or  to set the desired time.
Each turn of 
ALARM TIME SET A (or B) +
 or 
changes the indication by 1 minute. If you turn and
hold 
ALARM TIME SET A (or B) +
 or 
, the
alarm time goes forward (or backward) by 1 minute
up to 10 minutes, and then by 10 minutes
increments. While setting the alarm time, the 
ALARM
A (or B) indicator flashes in the display. The
following example is when setting the ALARM A.
A
B
ALARM
When the alarm time setting operation is
complete, the display returns to the clock after a
few seconds and the 
ALARM
 A (or B) indicator
changes from flashing to fully lit.
• While 
ALARM A (or B)
 is set to 
RADIO
 or
BUZZER
, the alarm time setting can be changed by
ALARM TIME SET A (or B)
.
One turn of 
ALARM TIME SET A (or B)
 displays
the alarm time for about 4 seconds. By turning
ALARM TIME SET A (or B)
 while the alarm time
appears in the display, the alarm time will be changed.
• The 
ALARM
 A (or B) indicator flashes in the display
while:
– The alarm time appears in the display.
– The alarm sounds.
– Snooze function is turned on.
• The alarm time setting cannot be changed if
ALARM A (or B)
 is set to 
OFF
. If 
ALARM TIME
SET A (or B)
 is turned, “OFF” appears in the
display for about 0.5 seconds.
• If a second alarm sounds during a first (or the
snooze function is active), the second alarm takes
priority.
CLOCK
 and 
DST
 are unavailable while the alarm
sounds or snooze function is turned on.
• The 
ALARM VOLUME
 setting works together with
the beep sound volume. If the 
ALARM VOLUME
 is
set to 
LOW
, the beep sound will be also set to low.
• If the same alarm time is set for both alarm
(ALARM A and B), the ALARM A takes priority.
To doze for a few more minutes
Press SNOOZE/DATE/SLEEP OFF.
The sound turns off but will automatically come on
again after about 10 minutes. Each time you press
SNOOZE/DATE/SLEEP OFF
, the snooze time
changes as follows:
The maximum length of the snooze time is
60 minutes.
The display shows the snooze time for about
4 seconds and returns to show the current time. When
you press 
SNOOZE/DATE/SLEEP OFF 
after the
current time appears, the snooze time starts from 10
minutes again.
To stop the Alarm
Press RADIO OFF/ALARM RESET to
turn off the alarm.
The alarm will come on again at the same time the
next day.
If 
RADIO OFF/ALARM RESET
 is not pressed, the
alarm sounds continuously for about 60 minutes, and
then it will be stop automatically.
To deactivate the Alarm
Turn ALARM A (or B) to OFF.
ALARM
 A (or B) indicator disappears from the display.
Note on alarm in the event of a power
interruption
In the event of a power interruption, alarm functions
work until the battery is empty. But following
functions are different:
• Display will disappear.
• When the alarm sound is set to RADIO, it will
change to BUZZER automatically.
• If the power returns while the alarm sounds, the
alarm sounds continuously for about 60 minutes
when the power returns.
• The alarm buzzes for about one minute, stops
temporarily, and will buzz again after about five
minutes if neither 
SNOOZE/DATE/SLEEP OFF
or 
RADIO OFF/ALARM RESET
 are pressed
while the alarm is buzzing.
If the alarm buzzes and stops (either automatically
after 1 minute or by pressing 
SNOOZE/DATE/
SLEEP OFF
) five times, the alarm is automatically
reset in the case of a power interruption. The alarm
will buzz for 30 minutes after power is resumed if
the power is resumed within 60 minutes from the
alarm time.
• If you press 
SNOOZE/DATE/SLEEP OFF
 while
the alarm sounds, snooze time is set to 10 minutes.
During a power failure, snooze time cannot be set to
more than 10 minutes.
• If “E” indicator appears in the display, the alarm
will not work in the event of power interruption.
Replace the battery if “E” indicator appears.
Setting the sleep
timer
You can fall asleep to the radio using the built-in
sleep timer that turns off the radio automatically after
a preset duration.
Press SLEEP.
The radio turns on. You can set the sleep timer to
durations of 90, 60, 30, or 15 minutes. Each press
changes the display as follows:
Two short beeps sound when the display returns to
“90”.
The radio will play for the duration you set, then shut
off.
To turn off the radio before the
preset time
Press RADIO OFF/ALARM RESET or
SNOOZE/DATE/SLEEP OFF.
To use both sleep timer and
alarm
You can fall asleep to the radio and also be awakened
by the radio or buzzer alarm at the preset time.
1
Set the alarm. (See “Setting the alarm”.)
2
Set the sleep timer. (See “Setting the sleep
timer”.)
Page of 16
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  • DOWNLOAD Sony ICF-C318 Service Manual ↓ Size: 496.99 KB | Pages: 16 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony ICF-C318 in PDF for free, which will help you to disassemble, recover, fix and repair Sony ICF-C318 Audio. Information contained in Sony ICF-C318 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.