CDX-M730 - Sony Car Audio Service Manual (repair manual)

Model
CDX-M730
Pages
68
Size
11.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-m730.pdf
Date

View Sony CDX-M730 Service Manual online

1
Ver 1.3  2002. 12
Model Name Using Similar Mechanism
CDX-L300/L460X
CD Drive Mechanism Type
MG-393X-121//K
Optical Pick-up Name
KSS-720A
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
CDX-M730
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS (US MODEL)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
87.5 – 107.9 MHz (US, Canadian model)
87.5 – 108.0 MHz (AEP, UK, E model)
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6% (stereo),
0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
AM (US, Canadian model)
Tuning range
530 – 1,710 kHz
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
30 µV
SPECIFICATIONS
MW/LW (AEP, UK, E model)
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Aerial terminal
External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
MW: 30 µV
LW: 40 µV
Power amplifier section
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output 52 W 
×
 4 (at 4 ohms)
General
Outputs
Audio outputs (front/rear)
Subwoofer output (mono)
Power antenna relay
control terminal (US, Canadian model)
Power aerial relay
control terminal (AEP, UK, E model)
Power amplifier control
terminal
FM/AM COMPACT DISC PLAYER
US, Canadian Model
FM/MW/LW COMPACT DISC PLAYER
AEP, UK, E Model
– Continued on next page –
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
9-873-692-04
2002L0400-1
© 2002. 12
2
optical pick-up block
semi-fixed resistor
SERVICE NOTES
Inputs
Telephone ATT control
terminal
Illumination control terminal (US, Canadian model)
BUS control input terminal
BUS audio input terminal
Remote controller input terminal (AEP, UK, E model)
Antenna input terminal (US, Canadian model)
Aerial input terminal (AEP, UK, E model)
Tone controls
US, Canadian model:
Bass ±10 dB at 62 Hz
Treble ±10 dB at 16 kHz
AEP, UK, E model:
Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
Loudness
+8 dB at 100 Hz
+2 dB at 10 kHz
Power requirements
12 V DC car battery
(negative ground)
Dimensions
Approx. 178 
× 50 × 182 mm
(7 
1/8
 
× 2 × 7 
1/4
 
in.)
(w/h/d)
Mounting dimensions
Approx. 182 
× 53 × 160 mm
(7 
1/4
 
× 2 
1/8
 
× 6 
3/8
 
in.)
(w/h/d)
Mass
Approx. 1.5 kg (2 lb. 10 oz.)
Supplied accessories
Parts for installation and
connections (1 set)
Front panel case (1)
Card remote commander
RM-X110 (US, Canadian model)
RM-X111 (AEP, UK, E model)
Note
This unit cannot be connected to a digital preamplifier or an equalizer.
Design and specifications are subject to change without
notice.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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, ob-
serve from more than 30 cm away from the objective lens.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
US model:
CDX-M730
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 IDENTIFIÉS 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 PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
3
Notes on CD-R/CD-RW discs
• You can play CD-Rs (recordable CDs)/CD-RWs (rewritable CDs)
designed for audio use on this unit.
Look for these marks to distinguish CD-Rs/CD-RWs for audio
use.
These marks denote that a disc is not for audio use.
• 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/a CD-RW that is not finalized∗.
∗ A process necessary for a recorded CD-R/CD-RW disc to be
played on the audio CD player.
stand
NOTE FOR THE OPENING OF THE FRONT PANEL
In this set, the front panel is lowered to below the bottom face when
it is opened.
When servicing the set, place it on a stand having a height of about
2 cm.
AEP, UK, E model:
This label is located on the bottom of the chassis.
This label is located on the drive unit’s internal chassis.
When replacing the chassis (T) of mechanism deck which have
the “CAUTION LABEL” attached, please be sure to put a new
CAUTION LABEL (3-223-913-11) to the chassis (T).
CDX-M730
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:
CD-R test disc TCD-R082LMT (Part No. J-2501-063-1)
CD-RW test disc TCD-W082L (Part No. J-2501-063-2)
4
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-011-1
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
• Connect the MAIN board (CNP701) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-011-1).
CDX-M730
5
TABLE OF CONTENTS
1. GENERAL
Location of Controls (US, Canadian Model) .......................... 6
Connection example (US, Canadian Model) ........................... 6
Connections (US, Canadian Model) ........................................ 7
Location of Controls (AEP, UK, E Model) ............................. 8
Connection example (AEP, UK Model) .................................. 8
Connections (AEP, UK Model) ............................................... 9
Connection example (E Model) ............................................. 10
Connections (E Model) ......................................................... 10
2. DISASSEMBLY
2-1.   Front Panel Assy (Normal) ................................................ 12
2-2.   Front Panel Assy (Inoperative) ......................................... 12
2-3.   CD Mechanism Block, Front Panel (Key) Assy ............... 13
2-4.   Sub Panel (CD) Sub Assy ................................................. 13
2-5.   Motor Block Assy, Cam (R) Assy ..................................... 14
2-6.   Main Board ....................................................................... 14
2-7.   Heat Sink ........................................................................... 15
2-8.   Chassis (T) Sub Assy ........................................................ 15
2-9.   Lever Section, In Self SW Board ...................................... 16
2-10. Servo Board ....................................................................... 16
2-11. Shaft Roller Assy, Load SW Board ................................... 17
2-12. Floating Block Assy .......................................................... 17
2-13. Optical Pick-up Block ....................................................... 18
3. PHASE ALIGNMENT
3-1.   Arm (A-L) Assy, Arm (B-L) Assy ..................................... 19
3-2.   Cam (L) ............................................................................. 19
3-3.   Motor Block ...................................................................... 20
3-4.   Alignment between Arm (A-L) Assy
    and Arm (B-L) Assy .......................................................... 20
3-5.   Arm (A-R) Assy, Arm (B-R) Assy .................................... 21
3-6.   Cam (R) ............................................................................. 21
CDX-M730
4. DIAGRAMS
4-1.   IC Pin Descriptions ........................................................... 22
4-2.   Block Diagram –CD Section– ........................................... 27
4-3.   Block Diagram –Tuner Section– ....................................... 28
4-4.   Block Diagram –Display Section– .................................... 29
4-5.   Circuit Boards Location .................................................... 30
4-6.   Schematic Diagram –CD Mechanism Section– ................ 31
4-7.   Printed Wiring Boards –CD Mechanism Section– ............ 32
4-8.   Printed Wiring Boards –Main Section– ............................ 34
4-9.   Schematic Diagram –Main Section (1/4)– ........................ 36
4-10. Schematic Diagram –Main Section (2/4)– ........................ 37
4-11. Schematic Diagram –Main Section (3/4)– ........................ 38
4-12. Schematic Diagram –Main Section (4/4)– ........................ 39
4-13. Printed Wiring Board –Sub (CD) Section– ....................... 40
4-14. Schematic Diagram –Sub (CD) Section– .......................... 41
4-15. Printed Wiring Board –Key Section– ................................ 42
4-16. Schematic Diagram –Key Section– .................................. 43
4-17. Printed Wiring Board –Display Section– .......................... 44
4-18. Schematic Diagram –Display Section– ............................. 45
5. EXPLODED VIEWS
5-1.   Chassis Section ................................................................. 50
5-2.   Cam Section ...................................................................... 51
5-3.   Main Board Section .......................................................... 52
5-4.   Front Panel (Key) Assy Section ........................................ 53
5-5.   Front Panel (Dspl) Assy Section ....................................... 54
5-6.   CD Mechanism Section (1) ............................................... 55
5-7.   CD Mechanism Section (2) ............................................... 56
5-8.   CD Mechanism Section (3) ............................................... 57
6. ELECTRICAL PARTS LIST
........................................ 58
6
CDX-M730
SECTION 1
GENERAL
This section is extracted
from instruction manual.
(US, Canadian Model)
Connection example (US, Canadian Model)
7
CDX-M730
Connections (US, Canadian Model)
8
CDX-M730
Connection example (AEP, UK Model)
(AEP, UK, E Model)
9
9
CDX-M730
Connections (AEP, UK Model)
10
10
CDX-M730
Connection example (E Model)
Connections (E Model)

Download Sony CDX-M730 Service Manual (Repair Manual)

Here you can view online and download Sony CDX-M730 Service Manual in PDF. CDX-M730 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CDX-M730 Car Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.