CDX-H905IP, CDX-HR905IP - Sony Car Audio Service Manual (repair manual)

Outputs: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W 

× 4 (at 4 ohms)

Outputs:
  Audio outputs terminal (front, rear/sub 
 switchable)
  Power antenna (aerial) relay control terminal
 Power 

amplifi er control terminal

Inputs:
  Telephone ATT control terminal
  Illumination control terminal
  BUS control input terminal
  BUS audio input terminal
  Remote controller input terminal
  Antenna (aerial) input terminal
  AUX input terminal
  iPod signal input terminal (dock connector)

2008E04-1

© 

2008.05

•  The tuner and CD sections have no adjustments.

– Continued on next page –

Model Name Using Similar Mechanism

CDX-GT51W/GT510/
GT560/GT560S

CD Drive Mechanism Type

MG-101FC-188//Q

Optical Pick-up Name

DAX-25A

•  The tuner and CD sections have no adjustments.

Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and fl utter: Below measurable limit

CDX-H905IP:
FM
Tuning range:
  87.5 – 108.0 MHz (at 50 kHz step)
  87.5 – 107.9 MHz (at 200 kHz step)
FM tuning interval: 
  50 kHz/200 kHz switchable
Antenna (aerial) terminal:
  External antenna (aerial) connector
Intermediate frequency: 10.7 MHz/450 kHz
Usable sensitivity: 9 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 67 dB (stereo), 
  69 dB (mono)
Harmonic distortion at 1 kHz: 0.5 % (stereo),
  0.3 % (mono)
Separation: 35 dB at 1 kHz
Frequency response: 30 – 15,000 Hz

AM
Tuning range:
  531 – 1,602 kHz (at 9 kHz step)
  530 – 1,710 kHz (at 10 kHz step)
AM tuning interval: 9kHz/10kHz switchable
Antenna (aerial) terminal:
  External antenna (aerial) connector
Intermediate frequency: 10.7 MHz/450 kHz
Sensitivity: 30 

μV

AUDIO POWER SPECIFICATIONS (CDX-H905IP only)
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.

CDX-HR905IP:
FM
Tuning range: 87.5 – 108.0 MHz
Antenna (aerial) terminal:
  External antenna (aerial) connector
Intermediate frequency: 10.7 MHz/450 kHz
Usable sensitivity: 9 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 67 dB (stereo), 
  69 dB (mono)
Harmonic distortion at 1 kHz: 0.5 % (stereo),
  0.3 % (mono)
Separation: 35 dB at 1 kHz
Frequency response: 30 – 15,000 Hz

MW/LW
Tuning range:
  MW: 531 – 1,602 kHz
  LW: 153 – 279 kHz
Antenna (aerial) terminal:
  External antenna (aerial) connector
Intermediate frequency: 10.7 MHz/450 kHz
Sensitivity: MW: 30 

μV, LW: 40 μV

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.

The laser diode in the optical pick-up block may suffer electrostat-
ic 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 fl exible 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 refl ective surface by the objective lens in the optical 
pickup block. Therefore, when checking the laser diode emission, 
observe from more than 30 cm away from the objective lens.

This label is located on the bottom of the chassis.

CAUTION
Use of controls or adjustments or performance of procedures other than 
those specifi ed 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-fi xed resistor located at the side of optical 
pick-up block.

TEST  DISCS
Please use the following test discs for the check on the CD section.

 

YDES-18 (Part No. 3-702-101-01)

 

PATD-012 (Part No. 4-225-203-01)

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 

LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  0 SUR  
LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE  DES  
PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ  DE  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COM-  POSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.

Tone controls:
  Low: ±10 dB at 60 Hz (XPLOD)
  Mid: ±10 dB at 1 kHz (XPLOD)
  High: ±10 dB at 10 kHz (XPLOD)
Power requirements: 12 V DC boat battery
  (negative ground (earth))
Dimensions: Approx. 197 × 89 × 187 mm
 (7

 7/8

 

× 3

 5/8

 

× 7

 3/8

 in) (w/h/d)

Mounting dimensions: Approx. 181 × 52 × 144 mm
 (7

 1/4

 

× 2

 1/8

 

× 5

 3/4

 in) (w/h/d)

Mass: Approx. 1.8 kg (4 lb)
Supplied accessories:
  Card remote commander: RM-X151
  Parts for installation and connections (1 set)

  .....................................................   4

 

Location of Controls .......................................................   5

 

Connection Example (CDX-H905IP) .............................   6

 

Connection Example (CDX-HR905IP) ..........................   6

 Connections 

(CDX-H905IP) 

...........................................  

7

 Connections 

(CDX-HR905IP) 

........................................  

8

3-1.   Front Panel Overall Assy  ...............................................   9
3-2.   Sub Panel Section  ..........................................................   10
3-3.   CD Mechanism Block .....................................................   10
3-4.   Main Board .....................................................................   11
3-5. Servo 

Board 

....................................................................  11

3-6. Chassis 

(T) 

Sub 

Assy 

......................................................  12

3-7.  Roller Arm Assy ..............................................................   12
3-8. Chassis 

(OP) 

Assy 

...........................................................  13

3-9. Chucking 

Arm 

Sub 

Assy 

.................................................  13

3-10. Sled Motor Assy ..............................................................   14
3-11.  Optical Pick-up Section ..................................................   15
3-12. Optical Pick-up ...............................................................   15

DIAGNOSIS  FUNCTION 

 .....................................   16

5-1.  Block Diagram –Main Section– .....................................   19
5-2.  Block Diagram –Display Section– .................................   20
5-3.  Printed Wiring Board –Main Section– ............................   21
5-4.  Schematic Diagram –Main Section (1/4)– ......................   22
5-5.  Schematic Diagram –Main Section (2/4)– ......................   23
5-6.  Schematic Diagram –Main Section (3/4)– ......................   24
5-7.  Schematic Diagram –Main Section (4/4)– ......................   25
5-8.  Printed Wiring Board –iPod Section- .............................   26
5-9.  Schematic Diagram –iPod Section- ................................   26
5-10.  Printed Wiring Board –Sub Section- ..............................   27
5-11.  Schematic Diagram –Sub Section- .................................   28

6-1.  Front Panel Section .........................................................   35
6-2. Sub 

Panel 

Section 

...........................................................  36

6-3. Main 

Section 

...................................................................  37

6-4.  CD Mechanism Section (MG-101FC-188//Q) ...............   38

  ..............................   39

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)

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 fl ow) 
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.

You can play CD-DA (also containing CD TEXT), CD-R/CD-
RW (MP3/WMA/AAC fi les) and ATRAC CD (ATRAC3 and 
ATRAC3plus format).

CD-DA

MP3

WMA

AAC

ATRAC CD

EXTENSION  CABLE  AND  SERVICE  POSITION
When repairing or servicing this set, connect the jig (extension 
cable) as shown below.

•  Connect the MAIN board (CNP350) and the SERVO board 

(CN2) with the extension cable (Part No. J-2502-076-1).

NOTE  FOR  REPLACEMENT  OF  THE  SERVO  BOARD
When repairing, the complete SERVO board (A-1177-362-A) 
should be replaced since any parts in the SERVO board cannot be 
repaired.

NOTE  FOR  REPAIRING  THE  FRONT  PANEL
The front panel should never be disassembled since it is water-
proof fi nished.
Replace the front panel overall assembly completely when replac-
ing the key board or other components of the front panel. 

NOTE  FOR  REPAIRS  OF  THE  CDX-H905IP
The CDX-H905IP offers two different models which have Blue 
and Red Types of Button Illumination initial settings.
Check the part number specifi ed on the MODEL NO. LABEL 
when repairing the CDX-H905IP.