Sony CDX-V4800 Service Manual ▷ View online
3
CDX-V4800
•
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
• 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 viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
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.
also be added to ordinary solder.
Notes on CD-Rs (recordable CDs)/CD-RWs (rewritable
CDs)
This unit can play the following discs:
CDs)
This unit can play the following discs:
Type of discs
Label on the disc
Audio CD
MP3 files
• Some CD-Rs/CD-RWs (depending on the equipment used for
its recording or the condition of the disc) may not play on this
unit.
unit.
• You cannot play a CD-R/CD-RW that is not finalized*.
• You can play MP3 files recorded on CD-ROMs, CD-Rs, and
• You can play MP3 files recorded on CD-ROMs, CD-Rs, and
CD-RWs.
• A CD-R/CD-RW to which a session can be added can be played.
* A process necessary for a recorded CD-R/CD-RW disc to be
played on the audio CD player.
Notes on Video CDs
This unit can play the following discs:
This unit can play the following discs:
Type of discs
Label on the disc
Video CD
VCD
A compact disc that contains moving pictures.
The picture data uses the MPEG 1 format (Video CD), worldwide
standards of digital compression technology.
Video CDs also contain compact audio data.
Sounds outside the range of human hearing are compressed while
the sounds we can hear are not compressed.
The picture data uses the MPEG 1 format (Video CD), worldwide
standards of digital compression technology.
Video CDs also contain compact audio data.
Sounds outside the range of human hearing are compressed while
the sounds we can hear are not compressed.
4
CDX-V4800
TABLE OF CONTENTS
1.
GENERAL
Location of Controls ........................................................
5
Connections .....................................................................
5
2.
DISASSEMBLY
2-1.
Sub Panel Assy ................................................................
9
2-2.
CD Mechanism Block .....................................................
9
2-3.
Main Board ...................................................................... 10
2-4.
Chassis (T) Sub Assy ....................................................... 10
2-5.
Roller Arm Assy .............................................................. 11
2-6.
Chassis (OP) Assy ........................................................... 11
2-7.
Optical Pick-up ................................................................ 12
2-8.
SL Motor Assy (M902) ................................................... 12
2-9.
LE Motor Assy (M903) ................................................... 13
2-10. Servo Board ..................................................................... 13
3.
DIAGRAMS
3-1.
Block Diagram –CD Section– ......................................... 15
3-2.
Block Diagram –Main Section– ...................................... 16
3-3.
Block Diagram –Key Section– ........................................ 17
3-4.
Circuit Boards Location .................................................. 17
3-5.
Printed Wiring Boards –CD Mechanism Section– .......... 19
3-6.
Schematic Diagram –CD Mechanism Section (1/2)– ..... 20
3-7.
Schematic Diagram –CD Mechanism Section (2/2)– ..... 21
3-8.
Printed Wiring Boards –Main Section– ........................... 22
3-9.
Schematic Diagram –Main Section (1/3)– ...................... 23
3-10. Schematic Diagram –Main Section (2/3)– ...................... 24
3-11. Schematic Diagram –Main Section (3/3)– ...................... 25
3-12. Printed Wiring Boards –Key Section– ............................. 26
3-13. Schematic Diagram –Key Section– ................................. 27
3-11. Schematic Diagram –Main Section (3/3)– ...................... 25
3-12. Printed Wiring Boards –Key Section– ............................. 26
3-13. Schematic Diagram –Key Section– ................................. 27
4.
EXPLODED VIEWS
4-1.
Main Section .................................................................... 34
4-2.
Front Panel Section ......................................................... 35
4-3.
CD Mechanism Section (1) ............................................. 36
4-4.
CD Mechanism Section (2) ............................................. 37
4-5.
CD Mechanism Section (3) ............................................. 38
4-6.
CD Mechanism Section (4) ............................................. 39
5.
ELECTRICAL PARTS LIST
.................................. 40
5
CDX-V4800
SECTION 1
GENERAL
• LOCATION OF CONTROLS
• CONNECTIONS
This section is extracted
from instruction manual.
from instruction manual.
6
Location of controls and basic operations
Main unit
Card remote commander
RM-X158
RM-X158
Refer to the pages listed for details. The
corresponding buttons on the card remote
commander control the same functions as those
on the unit.
corresponding buttons on the card remote
commander control the same functions as those
on the unit.
A OFF button
To power off; stop the source.
B Volume control dial/select button 10
To adjust volume (rotate); select items
(press).
(press).
C EQ3 (equalizer) button 10
To select an equalizer type (XPLOD,
VOCAL, CLUB, JAZZ, NEW AGE, ROCK,
CUSTOM or OFF).
VOCAL, CLUB, JAZZ, NEW AGE, ROCK,
CUSTOM or OFF).
D Disc slot
To insert the disc (label side up), playback
starts.
starts.
E Display window
F Z (eject) button
To eject the disc.
G SCRL (scroll) button 8
To scroll the display item.
H DSPL (display) button 4, 8
To change display items.
I ALBUM* +/– buttons
To skip albums (press); skip albums
continuously (press and hold).
continuously (press and hold).
J
(front panel release) button 4
CDX-V4800
OFF
DSPL
REP
SHUF
SLOW
PBC
SCRL
SOURCE
SEL
MODE
PAUSE
OSD
AUDIO
1
3
2
4
6
5
ATT
VOL
+
–
+
–
ENTER
qs
wa
wh
1
7
ws
wd
8
wg
wf
wl
wj
wk
qf
7
K SEEK –/+ buttons
CD/VCD:
To skip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); reverse/fast-
forward a track (press and hold).
Radio:
To tune in stations automatically (press); find
a station manually (press and hold).
To skip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); reverse/fast-
forward a track (press and hold).
Radio:
To tune in stations automatically (press); find
a station manually (press and hold).
L SOURCE button
To power on; change the source (Radio/CD/
VCD/AUX).
VCD/AUX).
M BTM button 9
To start the BTM function (press and hold).
N MODE button 9
To select the radio band (FM/MW/SW).
O RESET button (located behind the front
panel) 4
P Frequency select switch (located on the
bottom of the unit)
See F requency select switch in the
supplied installation/connections manual.
See F requency select switch in the
supplied installation/connections manual.
Q Number buttons
CD:
(1): REP 8
(2): SHUF 8
(3): SLOW 8
(4): AUDIO 9
(5): OSD 11
(6): PAUSE
To pause playback. To cancel, press again.
Radio:
To receive stored stations (press); store
stations (press and hold).
(1): REP 8
(2): SHUF 8
(3): SLOW 8
(4): AUDIO 9
(5): OSD 11
(6): PAUSE
To pause playback. To cancel, press again.
Radio:
To receive stored stations (press); store
stations (press and hold).
R SENS button
To improve weak reception: LOCAL/
MONO.
MONO.
S Receptor for the card remote
commander
T AUX input jack 12
To connect a portable audio device.
The following buttons on the card remote
commander have also different buttons/functions
from the unit.
commander have also different buttons/functions
from the unit.
wa PBC button 9
ws ENTER button 9
wd < (.)/, (>) buttons
To control CD/VCD/Radio, the same as
(SEEK) —/
(SEEK) —/
+ on the unit.
wf VOL (volume) +/– button
To adjust volume.
wg ATT (attenuate) button
To attenuate the sound. To cancel, press
again.
again.
wh SEL (select) button
The same as the select button on the unit.
wj O (return) button 9
wk M (+)/m (–) buttons
To control CD, the same as (ALBUM) +/—
on
the unit.
wl Number buttons
To receive stored stations (press); store
sations (press and hold).
sations (press and hold).
* When an MP3 is played.
Note
If the unit is turned off and the display disappears, it
cannot be operated with the card remote commander
unless (SOURCE) on the unit is pressed, or a disc is
inserted to activate the unit first.
If the unit is turned off and the display disappears, it
cannot be operated with the card remote commander
unless (SOURCE) on the unit is pressed, or a disc is
inserted to activate the unit first.
Tip
For details on how to replace the battery, see
“Replacing the lithium battery of the card remote
commander” on page 14.
For details on how to replace the battery, see
“Replacing the lithium battery of the card remote
commander” on page 14.
VIDEO OUT
A
B
VIDEO OUT
AUDIO
OUT REAR
OUT REAR
*
AUDIO OUT FRONT
* AUDIO OUT SUB/REAR
(2-B)
•
•
•
Connection example
Notes (2-B)
• Be sure to connect the earth lead before connecting the
• Be sure to connect the earth lead before connecting the
amplifi er.
• If you connect an optional power amplifi er and do not use the
built-in amplifi er, the beep sound will be deactivated.
6
CDX-V4800
• E, Indian model
L
REAR
FRONT
VIDEO OUT
AUDIO OUT
R
VIDEO OUT
AUDIO OUT
REAR
*
2
AUDIO OUT
FRONT
*
1
RCA pin cord (not supplied)
*
2
AUDIO OUT can be switched SUB or
REAR. For details, see the Operating
Instructions.
REAR. For details, see the Operating
Instructions.
*
3
For details on connecting to the
parking brake switch cord, and
attaching the tap 8, see “Connecting
the parking cord” on the reverse side.
parking brake switch cord, and
attaching the tap 8, see “Connecting
the parking cord” on the reverse side.
7
AMP REM
ANT REM
*
1
*
1
from car aerial
Fuse (10 A)
Blue/white striped
Max. supply current 0.3 A
Left
Left
Right
Right
White
White/black striped
Grey
Grey/black striped
Green
Green/black striped
Purple
Purple/black striped
Black
Light green
Red
Yellow
Max. supply current 0.1 A
Blue
8
*
3
4
2
3
5
6
1
*
1
Connection diagram
1
To a metal surface of the car
First connect the black earth lead, then connect the yellow
and red power input leads.
and red power input leads.
2
To the parking brake switch cord
Be sure to connect the parking cord (light green) to the
parking brake switch cord. The mounting position of the
parking brake switch cord depends on your car. Refer to
“Connecting the parking cord” on the reverse side and
consult your car dealer or your nearest Sony dealer for
further details.
parking brake switch cord. The mounting position of the
parking brake switch cord depends on your car. Refer to
“Connecting the parking cord” on the reverse side and
consult your car dealer or your nearest Sony dealer for
further details.
3
To the power aerial control lead or power
supply lead of aerial booster amplifi er
Notes
• It is not necessary to connect this lead if there is no power
• It is not necessary to connect this lead if there is no power
aerial or aerial booster, or with a manually-operated
telescopic aerial.
telescopic aerial.
• When your car has a built-in FM/MW/SW aerial in the rear/
side glass, see “Notes on the control and power supply
leads.”
leads.”
4
To AMP REMOTE IN of an optional power
amplifi er
This connection is only for amplifi ers. Connecting any other
system may damage the unit.
system may damage the unit.
5
To the +12 V power terminal which is
energized in the accessory position of the
ignition key switch
ignition key switch
Notes
• If there is no accessory position, connect to the +12 V
• If there is no accessory position, connect to the +12 V
power (battery) terminal which is energized at all times.
Be sure to connect the black earth lead to a metal surface
of the car fi rst.
• When your car has a built-in FM/MW/SW aerial in the rear/
side glass, see “Notes on the control and power supply
leads.”
leads.”
6
To the +12 V power terminal which is
energized at all times
Be sure to connect the black earth lead to a metal surface
of the car fi rst.
of the car fi rst.
Notes on the control and power supply leads
• The power aerial control lead (blue) supplies +12 V DC when
• The power aerial control lead (blue) supplies +12 V DC when
you turn on the tuner.
• When your car has built-in FM/MW/SW aerial in the rear/side
glass, connect the power aerial control lead (blue) or the
accessory power input lead (red) to the power terminal of the
existing aerial booster. For details, consult your dealer.
accessory power input lead (red) to the power terminal of the
existing aerial booster. For details, consult your dealer.
• A power aerial without a relay box cannot be used with this
unit.
Memory hold connection
When the yellow power input lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.
When the yellow power input lead is connected, power will
always be supplied to the memory circuit even when the ignition
switch is turned off.
Notes on speaker connection
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with
adequate power handling capacities to avoid its damage.
• Do not connect the speaker terminals to the car chassis, or
connect the terminals of the right speakers with those of the
left speaker.
left speaker.
• Do not connect the earth lead of this unit to the negative (–)
terminal of the speaker.
• Do not attempt to connect the speakers in parallel.
• Connect only passive speakers. Connecting active speakers
• Connect only passive speakers. Connecting active speakers
(with built-in amplifi ers) to the speaker terminals may damage
the unit.
the unit.
• To avoid a malfunction, do not use the built-in speaker leads
installed in your car if the unit shares a common negative (–)
lead for the right and left speakers.
lead for the right and left speakers.
• Do not connect the unit’s speaker leads to each other.
Note on connection
If speaker and amplifi er are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifi er are connected correctly.
If speaker and amplifi er are not connected correctly, “FAILURE”
appears in the display. In this case, make sure the speaker and
amplifi er are connected correctly.
Ver. 1.1