Read Sony ICF-CD7000 Service Manual online
SERVICE MANUAL
ICF-CD7000
Ver. 1.2 2008.01
US Model
Canadian Model
AEP Model
FM/AM CD CLOCK RADIO
SPECIFICATIONS
9-887-546-03
2008A05-1
© 2008.01
© 2008.01
Sony Corporation
Audio Businness Group
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
Model Name Using Similar Mechanism
NEW
CD Mechanism deck Block
CDM-3525
AUDIO POWER SPECIFICATIONS
(US model only)
(US model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8–ohm loads, both channels driven from
150 – 10 000 Hz; rated 0.8 W per channel-minimum
RMS power, with no more than 10% total harmonic
distortion in AC operation.
DISTORTION
With 8–ohm loads, both channels driven from
150 – 10 000 Hz; rated 0.8 W per channel-minimum
RMS power, with no more than 10% total harmonic
distortion in AC operation.
CD player section
System: Compact disc digital audio system
Laser diode properties:
Laser diode properties:
Material: GaAlAs
Wavelength: 785 – 800 nm
Emission duration: Continuous
Laser output: Less than 44.6
Wavelength: 785 – 800 nm
Emission duration: Continuous
Laser output: Less than 44.6
µW
about 200 mm from the objective lens surface on
(This output is the value measured at a distance of
an optical pick-up block with a 7-mm aperture.)
Number of channels: 2
Frequency response: 20 – 20 000 Hz
Frequency response: 20 – 20 000 Hz
Wow and flutter: Below measurable limit
+1
–2
–2
dB
Radio section
Frequency range:
FM: 87.5 – 108 MHz
AM: 531 – 1 611 kHz (Italian, Russian models)
AM: 530 – 1 710 kHz (US and Canadian models)
Antennas:
FM: FM wire antenna
AM: Built-in ferrite bar antenna
AM: Built-in ferrite bar antenna
General
Time display: 12-hour system (US and Canadian models)
24-hour system (Italian, Russian models)
Speaker: 50 mm (2 inches) diam., 8
24-hour system (Italian, Russian models)
Speaker: 50 mm (2 inches) diam., 8
Ω, cone type (2)
Input:Built-in audio cable with stereo-mini plug (1):
minimum input level 245mV, impedance 47k
Ω
Power outputs:
1 W + 1 W (at 8
Ω, 10% harmonic distortion)
Power requirements: 120 V AC, 60 Hz (US and Canadian models)
230 V AC, 50 Hz (Italian, Russian models)
For power backup: 3 V DC, one CR2032 battery
Dimensions:
Approx. 170
× 136 × 204 mm (w/h/d)
(Approx. 6 /
× 5 / × 8 / inches) incl.
3
4
3
8
1
8
projecting parts and controls
Mass:
Approx. 1 700 g (3 lb 12 oz) incl. CR2032 battery
without notice.
Design and specifications are subject to change
2
ICF-CD7000
TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
5
3-2.
Lithium Battery (CR2032 Type) .....................................
5
3-3.
Panel (Upper) ..................................................................
6
3-4.
Cabinet (Upper)/Cabinet (Lower) Block .........................
6
3-5.
Button (Snooze), MAIN Board .......................................
7
3-6.
CD Board .........................................................................
7
3-7.
Spring (CD) .....................................................................
8
3-8.
CD Lid Assy ....................................................................
8
3-9.
Holder (CD), RELAY Board ...........................................
9
3-10. CD Mechanism Deck Block (CDM-3525) ......................
9
3-11. Connection Cord (With Plug)
(Built-in Audio Cable) (J301) .......................................... 10
4.
TEST MODE
.............................................................. 11
5.
ELECTRICAL ADJUSTMENTS
......................... 12
6.
DIAGRAMS
6-1.
Printed Wiring Boards – CD Section – ........................... 16
6-2.
Schematic Diagram – CD Section – ................................ 17
6-3.
Printed Wiring Board – TU Board – ................................ 18
6-4.
Schematic Diagram – TU Board – .................................. 19
6-5.
Printed Wiring Board – MAIN Board – .......................... 20
6-6.
Schematic Diagram – MAIN Board – ............................. 21
6-7.
Printed Wiring Boards – VOL Section – ......................... 22
6-8.
Schematic Diagram – VOL Section – ............................. 23
6-9.
Printed Wiring Boards – AMP Section – ......................... 24
6-10. Schematic Diagram – AMP Section – ............................ 25
7.
EXPLODED VIEWS
7-1.
Panel (Upper) Section ..................................................... 31
7-2.
CD Lid Section ................................................................ 32
7-3.
Cabinet (Upper) Section .................................................. 33
7-4.
Cabinet (Rear) Section .................................................... 34
7-5.
Cabinet (Lower) Section .................................................. 35
8.
ELECTRICAL PARTS LIST
................................ 36
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.
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270 ˚C
during repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
other than those specified herein may result in hazardous radiation
exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
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.
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 IDENTIFIÉS PAR UNE MARQUE
0
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same of equivalent type.
Replace only with the same of equivalent type.
3
ICF-CD7000
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
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
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
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.
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.
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
MODEL INDENTIFICATION
– Bottom View –
PART No.
Model
PART No.
US (White, Beige) model
3-093-131-0[]
US (Black) model, Hotel model
3-093-131-1[]
Canadian (White) model
3-093-132-0[]
Canadian (Black) model
3-093-132-1[]
Italian, Russian (White) models
3-093-133-0[]
Italian, Russian (Black) models
3-093-133-1[]
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S419. (push switch type)
The following checking method for the laser diode is operable.
diode is prohibited unless the upper lid is closed while turning ON
the S419. (push switch type)
The following checking method for the laser diode is operable.
•
Method
Emission of the laser diode is visually checked.
Emission of the laser diode is visually checked.
1. Open the CD lid assy.
2. Push the S419 as shown in Fig.1.
2. Push the S419 as shown in Fig.1.
Note:
Do not push the detection lever strongly, or it may be bent or
damaged.
damaged.
3. Press the
CD
u
button.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down few
times along with inward motion for the focus search.
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down few
times along with inward motion for the focus search.
Fig.1 Method to push the S419
S419
Note 1:
Beige color is Liv type.
Note 2:
Hotel model (US) is black color.
COLOR VARIATION
Destination
COLOR
WHITE
BLACK
BEIGE
US
z
z
z
Canadian
z
z
Italian
z
z
Russian
z
z
Ver. 1.2
HOW TO DISTINGUISH MODEL FOR ORIGINAL AND
FOR HOTEL
FOR HOTEL
In black color of US model, there is a model for hotel besides an
original model.
Two parts of BUTTON (SNOOZE) and PANEL (CD LID) are
different in an original model and the model for hotel.
Please distinguish an original model and the model for hotel
respectively referring to the figure below.
original model.
Two parts of BUTTON (SNOOZE) and PANEL (CD LID) are
different in an original model and the model for hotel.
Please distinguish an original model and the model for hotel
respectively referring to the figure below.
surface:
silver color
reverse:
like green color (for original)
silver or resin color (for hotel)
surface:
silver color
reverse:
like green color (for original)
silver or resin color (for hotel)
– BUTTON (SNOOZE) –
– PANEL (CD LID) –
4
ICF-CD7000
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
3
Press TIMEZONE repeatedly to select the
number as follows:
number as follows:
US and Canadian models:
Area numberTime zone
1
Atrantic standard Time
2 (default
setting)
setting)
Eastern standard Time
3
Central standard Time
4
Mountain standard Time
5
6
Yukon standard Time
7
Hawaian standard Time
Pacific standartd Time
few seconds and then the display returns to the
The area number appears in the display for a
current time.
to check the area number.
After the current time reappears, press TIMEZONE
Note
discrepancies may arise during transport or storage. If
necessary, set the clock to the correct time by referring
necessary, set the clock to the correct time by referring
Though the clock is correctly set at the factory,
to “Setting the Clock Manually”.
When daylight saving time
(summer time) begins
(summer time) begins
time (summer time).
This model automatically adjust for daylight saving
“ ”is displayed from the beginning of daylight saving
time (summer time) and disappears at the end of the
daylight saving time (summer time) automatically.
time (summer time) and disappears at the end of the
daylight saving time (summer time) automatically.
AM on the second Sunday of March.
Sunday of November.
• Standard time begins at: 2:00 AM on the first
Setting the Clock
Manually
Manually
1
Plug in the unit.
2
Hold down CLOCK/DATE until a short beep
sounds.
sounds.
The year starts to flash on the display.
3
Press TUNE•TIME SET + or – repeatedly to
set the year.
set the year.
4
Press CLOCK/DATE.
5
Repeat steps 3 and 4 to set the month,
the day, hour, and minute, and then press
CLOCK/DATE.
the day, hour, and minute, and then press
CLOCK/DATE.
Two short beeps sound and the seconds start
incrementing from zero.
incrementing from zero.
Notes
•ALARM-RESET while setting the clock.
• If you do not press a button for about 1 minute while
setting the clock, the clock setting will be cancelled.
• The clock setting will be cancelled if you press OFF
To display the year and date
Press CLOCK/DATE once for the date, and within 2
seconds press it again for the year.
seconds press it again for the year.
and then changes back to the current time.
The display shows the date or year for about 4 seconds
To change to daylight saving
time (summer time) indication
time (summer time) indication
Hold down OFF
•ALARM-RESET and
TIMEZONE
until two short beeps sound.
“ ”is displayed, “On” appear for a few seconds,
and then the time changes to daylight saving time
(summer time).
To deactivate the daylight saving time (summer time)
and then the time changes to daylight saving time
(summer time).
To deactivate the daylight saving time (summer time)
function, hold down OFF
•ALARM-RESET and
TIMEZONE
until two short beeps sound again.
“OFF” appears for a few seconds, and then “
”
disappears.
Note
When replacing the battery, do not disconnect AC
plug from AC outlet.
If you do, the current time, alarm and NAP timer will
be initialized.
When replacing the battery, do not disconnect AC
plug from AC outlet.
If you do, the current time, alarm and NAP timer will
be initialized.
Battery Warning
remove the battery to avoid undue battery discharge
If the unit is to be left unplugged for a long time,
and damage to the unit from battery leakage.
NOTES ON THE LITHIUM BATTERY
• Dispose of the used battery promptly. Keep the
lithium battery out of the reach of children.
Should the battery be swallowed, consult a doctor
immediately.
Should the battery be swallowed, consult a doctor
immediately.
• Wipe the battery with a dry cloth to assure a good
contact.
• Be sure to observe correct polarity when installing
the battery.
• Do not hold the battery with metallic tweezers,
otherwise a short-circuit may occur.
• Do not expose the battery to excessive heat such as
direct sunlight, fire or the like.
CAUTION
incorrectly replaced.
There is a danger of explosion if the battery is
Replace only with the same or equivalent type
recommended by the equipment manufacturer.
recommended by the equipment manufacturer.
Setting the Clock for
the First Time
the First Time
Standard Time) at the factory, and is powered by the
This unit is preset to the current EST (Eastern
just plug it in, select your time zone.
back up battery. All you need to do the first time is
1
Plug in the unit.
in the display.
The current EST (Eastern Standard Time) appears
2
Press TIMEZONE.
Area number “2” appear in the display.
FM wire
antenna
antenna
AC power cord
Built-in
audio cable
audio cable
The PRESET TUNING 3 button
has a tactile dot.
has a tactile dot.
The VOLUME + button has a tactile dot.
The CD
but ton has a
tactile dot.
PUSH OPEN/CLOSE
VOLUME +/–
Battery
compartment
compartment
SNOOZE /BRIGHTNESS
About the Backup
Battery
Battery
To keep good time, this unit contains one CR2032
battery inside of the unit as a backup power source.
The battery keeps the clock operating in the event of a
power interruption.
battery inside of the unit as a backup power source.
The battery keeps the clock operating in the event of a
power interruption.
Knowing when to replace the
battery
battery
When the battery becomes weak, “
”appears in the
display.
If a power interruption occurs while the battery is
weak, the current time and alarm will be initialized.
Replace the battery with a Sony CR2032 lithium
battery. Use of another battery may cause a fire or
explosion.
If a power interruption occurs while the battery is
weak, the current time and alarm will be initialized.
Replace the battery with a Sony CR2032 lithium
battery. Use of another battery may cause a fire or
explosion.
Note
the battery may be weak. In this case, consult your
Sony dealer.
Sony dealer.
If “AM 12:00” (US and Canadian models) or “0:00”
(Italian, Russian models) flashes in the display when
the unit is connected to AC outlet for the first time,
(Italian, Russian models) flashes in the display when
the unit is connected to AC outlet for the first time,
Replacing the battery
1
Keep the AC plug connected to the AC
outlet and use a screwdriver to remove the
screw that secures the battery holder at the
bottom of the unit. (See Fig.
outlet and use a screwdriver to remove the
screw that secures the battery holder at the
bottom of the unit. (See Fig.
-
)
2
Push the exhausted battery out from the
bottom of the battery holder and insert a
new battery with the
bottom of the battery holder and insert a
new battery with the
side facing up. (See
Fig.
-
)
3
Insert the battery holder back into the unit
and secure it with the screw. (See Fig. -
and secure it with the screw. (See Fig. -
)
4
Press RADIO ON•BAND to turn “ ” off in
the display.
the display.
AUDIO IN
Push
Area number
Time zone
1 (default
setting)
setting)
Central European Time/
Central European Summer
Time
Central European Summer
Time
2
Eastern European Time/
Eastern European Summer
Time
Eastern European Summer
Time
0
Western European Time/
Western European Summer
Time
Western European Summer
Time
The area number appears in the display for a
few seconds and then the display returns to the
current time.
After the current time reappears, press TIMEZONE
to check the area number.
few seconds and then the display returns to the
current time.
After the current time reappears, press TIMEZONE
to check the area number.
Note
Though the clock is correctly set at the factory,
discrepancies may arise during transport or storage. If
necessary, set the clock to the correct time by referring
to “Setting the Clock Manually”.
Though the clock is correctly set at the factory,
discrepancies may arise during transport or storage. If
necessary, set the clock to the correct time by referring
to “Setting the Clock Manually”.
When daylight saving time
(summer time) begins
(summer time) begins
This model automatically adjusts for daylight saving
time (summer time).
“ ” is displayed from the beginning of daylight saving
time (summer time) and disappears at the end of the
daylight saving time (summer time) automatically.
The summer time adjustment is based on GMT
(Greenwich Mean Time).
time (summer time).
“ ” is displayed from the beginning of daylight saving
time (summer time) and disappears at the end of the
daylight saving time (summer time) automatically.
The summer time adjustment is based on GMT
(Greenwich Mean Time).
• Daylight saving time (summer time) begins at: 1:00
AM on the final Sunday of March.
• Standard time begins at: 2:00 AM on the final
Sunday of October.
Area number 1:
Area number 0:
• Daylight saving time (summer time) begins at: 2:00
AM on the final Sunday of March.
• Standard time begins at: 3:00 AM on the final
Sunday of October.
Area number 2:
• Daylight saving time (summer time) begins at: 3:00
AM on the final Sunday of March.
• Standard time begins at: 4:00 AM on the final
Sunday of October.
Italian, Russian models:
This unit is preset to the current date and time at the
factory, and is powered by the back up battery. All you
need to do the first time is just plug it in, select your
time zone.
factory, and is powered by the back up battery. All you
need to do the first time is just plug it in, select your
time zone.
1
Plug in the unit.
The current CET (Central European Time)
appears in the display.
appears in the display.
2
Press
TIMEZONE.
Area number “1” appear in the display.
3
Press
TIMEZONE
repeatedly to select the
number as follows:
• Daylight saving time (summer time) begins at: 2:00
Ver. 1.2