CDX-HR70MS, CDX-HR70MW, CDX-HS70MS, CDX-HS70MW - Sony Car Audio Service Manual (repair manual). Page 2

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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.

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.

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.

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

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 terminal (front, sub/rear
switchable)
Power antenna (aerial) relay control terminal
Power amplifier 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

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. 1.7 kg (3 lb. 12 oz.)

Supplied accessories

Card remote commander: RM-X151
Parts for installation and connections (1 set)

optical pick-up

semi-fixed resistor

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.

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.

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.

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)

This label is located on the bottom of the chassis.