DOWNLOAD Sony CDX-V4800 Service Manual ↓ Size: 6.7 MB | Pages: 48 in PDF or view online for FREE

Model
CDX-V4800
Pages
48
Size
6.7 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-v4800.pdf
Date

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
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.
Notes on CD-Rs (recordable CDs)/CD-RWs (rewritable
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.
• You cannot play a CD-R/CD-RW that is not finalized*.
• 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:
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.
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
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.
6
Location of controls and basic operations
Main unit
Card remote commander 
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.
OFF button
To power off; stop the source.
Volume control dial/select button  10
To adjust volume (rotate); select items 
(press).
EQ3 (equalizer) button  10
To select an equalizer type (XPLOD, 
VOCAL, CLUB, JAZZ, NEW AGE, ROCK, 
CUSTOM or OFF).
Disc slot
To insert the disc (label side up), playback 
starts.
Display window
F Z (eject) button
To eject the disc.
SCRL (scroll) button  8
To scroll the display item.
DSPL (display) button  4, 8
To change display items.
ALBUM* +/– buttons
To skip albums (press); skip albums 
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
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).
SOURCE button
To power on; change the source (Radio/CD/
VCD/AUX).
BTM button  9
To start the BTM function (press and hold).
MODE button  9
To select the radio band (FM/MW/SW).
RESET button (located behind the front 
panel)   4
Frequency select switch (located on the 
bottom of the unit) 
See  F requency select switch   in the 
supplied installation/connections manual.
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).
SENS button
To improve weak reception: LOCAL/
MONO.
Receptor for the card remote 
commander
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.
wa PBC button  9
ws ENTER button 9
wd < (.)/, (>) buttons
To control CD/VCD/Radio, the same as 
(SEEK) —/
+ on the unit.
wf VOL (volume) +/– button
To adjust volume.
wg ATT (attenuate) button
To attenuate the sound. To cancel, press 
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).
* 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.
Tip
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
*
AUDIO OUT FRONT
* AUDIO OUT SUB/REAR
(2-B)

Connection example  
Notes (2-B)
•  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.
*
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.
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.
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.
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 
aerial or aerial booster, or with a manually-operated 
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.”
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.
5
  To the +12 V power terminal which is 
energized in the accessory position of the 
ignition key switch
Notes
•  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.”
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.
Notes on the control and power supply leads
•  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.
•  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.
Notes on speaker connection
•  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.
•  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 
(with built-in amplifi ers) to the speaker terminals may damage 
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.
•  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.
Ver. 1.1
Page of 48
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Sony CDX-V4800 Service Manual ▷ Download

  • DOWNLOAD Sony CDX-V4800 Service Manual ↓ Size: 6.7 MB | Pages: 48 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony CDX-V4800 in PDF for free, which will help you to disassemble, recover, fix and repair Sony CDX-V4800 Car Audio. Information contained in Sony CDX-V4800 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.