ICF-SW7600GR
US Model
Canadian Model
AEP Model
Chinese Model
E Model
Tourist Model
SERVICE MANUAL
FM STEREO/SW/MW/LW
PLL SYNTHESIZED RECEIVER
SPECIFICATIONS
Ver 1.1 2001. 08
9-873-099-12
2001H1600-1
© 2001.8
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group
Circuit system
FM: Super heterodyne
AM: Dual conversion super heterodyne
Frequency range
FM: 76108 MHz
87.50 108 MHz (Saudi Arabia and Malaysia)
SW: 1 621 29 999 kHz
2 25026 100 kHz (Saudi Arabia and Malaysia)
MW: 5301 620 kHz
LW: 150529 kHz
150285 kHz (Saudi Arabia and Malaysia)
Output
LINE OUT jack (stereo minijack)
× 1
Recording output level approx. 245 mV, output
impedance less than 10 k
i
(headphones) jack (stereo minijack)
× 1 16
Speaker
Approx. 77 mm diameter, 8
× 1
Maximum output
380 mW (at 10 % harmonic distortion)
Power requirements
DC 6 V, four R6 (size AA) batteries
External power source
(Except Chinese)
DC IN 6V
Dimensions
Approx. 190
× 118.8 × 35.3 mm incl. projecting parts
(w/h/d)
Mass
Approx. 536 g
Approx. 608 g (incl. four R6 (size AA) batteries)
Supplied accessories
Carrying case (1)
Batteries (4) (Tourist)
Stereo headphones (1) (Tourist)
Ear pads (2) (Tourist)
AC power adaptor (1) (Tourist)
AC plug adaptor (1) (Tourist)
Compact antenna AN-71 (1)
Antenna connector (1) (Tourist)
Wave Handbook (1) (Except Saudi Arabia and Malaysia)
Short Wave Guide (1) (Saudi Arabia and Malaysia)
Design and specifications are subject to change without notice.
2
TABLE OF CONTENTS
ICF-SW7600GR
1. GENERAL ··································································· 3
2. DISASSEMBLY
2-1. Cabinet (Rear) ································································· 6
3. ELECTRICAL ADJUSTMENTS ······························ 6
4. DIAGRAMS
4-1. Block Diagram ······························································· 9
4-2. Printed Wiring Board
Main Board (Conductor Side) ································ 10
4-3. Printed Wiring Board
Main Board (Component Side) ······························ 11
4-4. Schematic Diagram Main Board (1/2) ··················· 12
4-5. Schematic Diagram Main Board (2/2) ··················· 13
4-6. Printed Wiring Board KEY Board ························· 14
4-7. Schematic Diagram KEY Board ···························· 15
4-8. IC Pin Function Description ········································ 16
5.
EXPLODED VIEWS
5-1. Cabinet Section ···························································· 17
5-2. Chassis Section ···························································· 18
6. ELECTRICAL PARTS LIST ··································· 19
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
3
ICF-SW7600GR
SECTION 1
GENERAL
This section is extracted from
instruction manual.
1
AM EXT ANT (AM
external antenna) jack (35)
2
ATT (attenuator) control
(21)
3
ATT (attenuator) ON/
OFF switch (21)
4
LINE OUT (recording
output) jack (33)
5 2
(headphones) jack (17,
33)
You can enjoy FM stereo
broadcasting by
connecting the optional
stereo headphones to the
unit . When using
headphones, sound from
the speaker will be
muted.
6
DC IN 6V !
(external power input)
jack (10)
7
LIGHT button
When the display is
difficult to see, press this
button to light up the
display for approximately
10 seconds. Pressing the
button again while the
light is on will turn off the
light. Performing button
operations while the light
is on will extend the
lighting time.
8
Display (7)
9
Controls (6)
0
Speaker
Front
Rear
qa
SSB FINE TUNE control (26)
qs
LSB/USB selector (26, 27)
qd
AM MODE selector (26, 27)
qf
TONE selector (33)
qg
VOLUME control
qh
Telescopic antenna
Always pull out the base of the antenna before use.
Furthermore, do not use unnecessary force when storing the
antenna. At this time, be sure to push in the base as well.
qj
Stand
qk
Battery compartment
Base
Pull out
4
ICF-SW7600GR
Controls
1
SLEEP button (31)
2
HOLD switch (32)
3
DIRECT button (15, 16)
4
FM/AM button (16, 18, 20)
5
STANDBY MEMORY,
TIMER STANDBY/
STANDBY TIME SET
buttons (28, 30)
6
ENTER, LOCAL TIME
SET button (11, 22, 28)
7
ERASE, DST (Daylight
Saving Time) button (11,
13, 30)
8
AM BAND, WORLD
TIME button (13, 18, 20)
9
POWER ON/OFF button
0
Number buttons (15, 16,
22, 23, 24)
qa
DISPLAY, EXE button
(13, 15, 16)
Press to switch to clock
display while operating
the radio. Press again to
return to the previous
display. If you do not
press the button, the
display will return to the
previous condition in
about 10 seconds.
qs
SCAN button (24)
qd
PAGE button (22, 24)
qf
MANUAL TUNE/SCAN
START/STOP, STANDBY
TIME SET/TIME SET
buttons (11, 13, 18, 20, 28)
Display
1
TUNE indicator (16, 18)
Appears when a station
is tuned in.
2
Battery indicator (9)
3
HOLD indicator (32)
Appears when HOLD is
in effect. All buttons will
be inoperative.
4
(Daylight Saving
Time) indicator (12)
Appears when the time
display is adjusted to the
Daylight Saving Time.
5
Preset number/time
difference display (11, 22,
23)
6
SYNCLOCK
(synchronous detection
lock) indicator (27)
Appears when
synchronous detection is
in effect.
7
SLEEP indicator (31)
Appears when the sleep
timer is in effect.
8
STANDBY
,
STANDBY
indicators
(28, 29, 30)
Light up when the
standby timer is set.
9
PAGE number display
Appears constantly when
the radio is on.
0
Time/frequency display
5
ICF-SW7600GR
Setting the Current Time
"0:00" flashes in the display when installing the batteries for the first time
or when the unit has been reset. Set the clock to the current time.
This unit can display local time, which is the time for your time zone, as
well as world time, which is the time for any other area in the world.
For the calculation of the time in other areas of the world, the time
difference* between the local time and the UTC (Universal Time
Coordinated) is used (see page 14, "Time difference with UTC for each
area"). To find out the correct time, set the correct time and time
difference of the area you are in.
* This unit uses time zones to pinpoint specific areas.
1
If the radio is turned on, press POWER ON/OFF to
turn it off.
Note
You cannot set the clock when the radio is turned on.
2
Hold down LOCAL TIME SET and press K or + k
to choose the time difference between your local time
and the UTC.
TIME ZONE indicator will appear. Each time you press K or
+ k, the time difference (UTC + or ) and
the "hour" of the clock will increase or
decrease accordingly.
Two short beeps will be heard when
adjusting the time difference to
±0.
When you release LOCAL TIME SET, the
TIME ZONE indicator will disappear and the time difference with
UTC will be determined.
1
2
4
3
2, 4, 5
3
To set the daylight saving time, press DST to display
the
indicator.
If daylight saving time is not used in your area, daylight saving
time is not currently in effect, or
is already displayed, proceed
to Step 4.
4
Hold down LOCAL TIME SET and press ?K or k?+
to set the local time.
Each time you press ?K or k?+, the current time will decrease or
increase by a minute. To change the digits rapidly, hold down ?K
or k?+.
Two short beeps will be heard when adjusting the time to "0:00".
5
Release LOCAL TIME SET.
" : " starts flashing and the clock starts
running.
To switch to clock display while the radio is turned on
Press EXE. The display returns to the previous condition
automatically after about 10 seconds or when EXE is pressed
again. The time display period is extended when the WORLD
TIME button is pressed during clock display, or when K or
+ k is pressed during world time display. During clock display,
radio operations such as changing frequencies are not possible.
The clock will not be displayed during auto scan (page 20) or
memory scan (page 24).
For areas adopting the daylight saving time (summer time)
Press DST to display the
indicator if you are now in the
summer time period. When the summer time period has ended,
press DST to clear the
indicator. The time display will be
adjusted automatically.
Tips
· The clock is displayed in the 24 hour system.
· Press LOCAL TIME SET to stop the flashing of "0:00".
· To adjust the time to the second, release LOCAL TIME SET at the time
of the tone.