Read Sony XDR-CD70DAB Service Manual online
SERVICE MANUAL
XDR-CD70DAB
Ver. 1.0 2007.05
UK Model
DAB/FM CD CLOCK RADIO
SPECIFICATIONS
9-887-718-01
2007E05-1
© 2007.05
© 2007.05
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
Model Name Using Similar Mechanism
NEW
CD Mechanism deck Block
CDM-3525
CD player section
System:
Compact disc digital audio system
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
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
an optical pick-up block with a 7-mm aperture.)
about 200 mm from the objective lens surface on
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
+1
–2
–2
dB
Wow and flutter: Below measurable limi
Radio section
Frequency range:
FM: 87.5 – 108 MHz
DAB (Band-III): 174.928 (5A) -
239.200 (13F) MHz
DAB (Band-III): 174.928 (5A) -
239.200 (13F) MHz
DAB (Band-III) frequency table (MHz)
No.
Channel
Frequency
1
5A
174.928
2
5B
176.640
3
5C
178.352
4
5D
180.064
5
6A
181.936
6
6B
183.648
7
6C
185.360
8
6D
187.072
9
7A
188.928
10
7B
190.640
21
10A
209.936
22
10B
211.648
23
10C
213.360
24
10D
215.072
25
11A
216.928
26
11B
218.640
27
11C
220.352
28
11D
222.064
29
12A
223.936
30
12B
225.648
31
12C
227.360
32
12D
229.072
33
13A
230.784
34
13B
232.496
35
13C
234.208
36
13D
235.776
37
13E
237.488
38
13F
239.200
Antennas:
FM/DAB: FM/DAB wire antenna
General
Time display: 12-hour system
Speaker: 50 mm diam., 8
Speaker: 50 mm diam., 8
Ω, cone type (2)
Input: Built-in audio cable with stereo-mini plug (1):
minimum input level 245 mV, impedance
47 k
47 k
Ω
Power outputs:
1 W + 1 W (at 8 , 10% harmonic distortion)
Power requirements: 230 V AC, 50 Hz
For power backup: 3 V DC, one CR2032 battery
Dimensions:
Approx. 170
× 136 × 204 mm (w/h/d) incl.
projecting parts and controls
Mass:
Approx. 1 700 g incl. CR2032 battery
Design and specifications are subject to change
without notice.
without notice.
11
7C
192.352
12
7D
194.064
13
8A
195.936
14
8B
197.648
15
8C
199.360
16
8D
201.072
17
9A
202.928
18
9B
204.640
19
9C
206.352
20
9D
208.064
2
XDR-CD70DAB
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.
Panel (CD Lid) ................................................................
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
3-12. Cabinet (Rear) ................................................................. 10
3-13. DAB CONNECT Board .................................................. 11
3-13. DAB CONNECT Board .................................................. 11
4.
TEST MODE
.............................................................. 12
5.
ELECTRICAL CHECK
........................................... 12
6.
DIAGRAMS
6-1.
Printed Wiring Boards – CD Section – ........................... 14
6-2.
Schematic Diagram – CD Section – ................................ 15
6-3.
Printed Wiring Board – DAB CONNECT Board – ......... 16
6-4.
Schematic Diagram – DAB CONNECT Board – ........... 17
6-5.
Printed Wiring Board – MAIN Board – .......................... 18
6-6.
Schematic Diagram – MAIN Board – ............................. 19
6-7.
Printed Wiring Boards – VOL Section – ......................... 20
6-8.
Schematic Diagram – VOL Section – ............................. 21
6-9.
Printed Wiring Boards – AMP Section – ......................... 22
6-10. Schematic Diagram – AMP Section – ............................. 23
7.
EXPLODED VIEWS
7-1.
Panel (Upper) Section ..................................................... 29
7-2.
CD Lid Section ................................................................ 30
7-3.
Cabinet (Upper) Section .................................................. 31
7-4.
Cabinet (Rear) Section .................................................... 32
7-5.
Cabinet (Lower) Section .................................................. 33
8.
ELECTRICAL PARTS LIST
................................ 34
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-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.
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
XDR-CD70DAB
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.
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
4
XDR-CD70DAB
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
FM/ DAB wire
antenna
antenna
AC p ower cord
Built-in
audio cable
audio cable
The PRESET TUNING 3 but ton
has a ta ctile do t.
has a ta ctile do t.
The VO LUME + but ton has a ta ctile do t.
The CD
but ton has a
ta ctile do t.
PUSH OPEN/C LOSE
VO LUME + /–
Battery
compa rtme nt
compa rtme nt
SNOOZE /BRIGHTNESS
Setting the Date
Manually
Manually
1
Plug in the unit.
2
Hold down DATE until a short beep sounds.
The year starts to flash in the display.
3
Press TUNE•TIME SET + or – repeatedly to
set the year.
4
Press DATE.
5
Repeat steps 3 and 4 to set the month and
the day, and then press DATE.
Two short beeps sound and the year, month, and
day are set.
day are set.
Setting the Clock
Manually
Manually
1
Hold down CLOCK until a short beep
sounds.
The hour starts to flash in the display.
2
Press TUNE•TIME SET + or – repeatedly to
set the hour.
3
Press CLOCK .
4
Repeat steps 2 and 3 to set the minutes, and
then press CLOCK .
Two short beeps sound and the seconds start
incrementing from zero.
incrementing from zero.
Notes
• The clocksettingwillbecancelledifyoupressOFF
•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 can celled.
To display the year and date
Press Date once for the date, and with in 2 seconds
press it again for the year.
The displayshowsthedateoryearforabout4seconds
and then changes back to the current time.
press it again for the year.
The displayshowsthedateoryearforabout4seconds
and then changes back to the current time.
To change to daylight saving
time (summer time) indication
time (summer time) indication
Hold down OFF
•ALARM RESET andandDATEuntil
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)
“ ” 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)
function, hold down OFF
•ALARM RESET andand
DATE until two short beeps sound again.
“OFF” appears for a few seconds, and then “ ”
disappears.
“OFF” appears for a few seconds, and then “ ”
disappears.
AUDIO IN
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, “E” 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.
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.
Note
If “AM 12:00” flashes in the display when the unit is
conn ected to AC outlet for the first time, the battery
may be weak. In this case, consult your Sony dealer.
If “AM 12:00” flashes in the display when the unit is
conn ected to AC outlet for the first time, the battery
may be weak. In this case, consult your Sony dealer.
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. A-1)
screw that secures the battery holder at the
bottom of the unit. (See Fig. A-1)
2
bottom of the battery holder and insert a
Push the exhausted battery out from the
new battery with the side facing up. (See
u .
Fig. A-2)
3
Insert the battery holder back into the unit
and secure it with the screw. (See Fig. A-
3
3
)
4
Press FM/DAB•RADIO ON to turn “
E
” off
in the display.
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
If the unit is to be left unplugged for a long time,
remove the battery to avoid undue battery discharge
and damage to the unit from battery leakage.
If the unit is to be left unplugged for a long time,
remove the battery to avoid undue battery discharge
and damage to the unit from battery leakage.
NOTES ON THE LITHIUM BATTERY
• Dispose of the used battery promptly. Keep the
• Dispose of the used battery promptly. Keep the
• Wipe the battery with a dry cloth to assure a good
• Be sure to observe correct polarity when installing
• Do not hold the battery with metallic tweezers,
• Do not expose the battery to excessive heat such as
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.
contact.
the battery.
otherwise a short-circuit may occur.
direct sunlight, fire or the like.
WARNING
There is a danger of explosion if the battery is
incorrectly replaced.
Replace only with the same or equivalent type
recommended by the equipment manufacturer.
There is a danger of explosion if the battery is
incorrectly replaced.
Replace only with the same or equivalent type
recommended by the equipment manufacturer.
A
1
2
3
Push
Lift up with y our finger