ZS-M35 (serv.man2) - Sony Audio Service Manual (repair manual). Page 2

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Coding

Adaptive TRansform Acoustic Coding (ATRAC)

Modulation system

EFM (Eight-to-Fourteen Modulation)

Number of programme positions

2 stereo programme positions

Frequency response

20 - 20,000 Hz +1/–2 dB

Signal-to-noise ratio

Over 80 dB (during playback)

Wow and flutter

Below measurable limit

General
Speaker

Full-range: 8 cm (3 in.) dia., 4 ohms, cone type (2)

Inputs

LINE IN (stereo minijack): Sensitivity 436 mV/
870 mV

Outputs

Headphones jack (stereo minijack) (1):
For 32 ohms impedance headphones

Power output (excluding US model)

5 W + 5 W (at 4 ohms, 10 % harmonic distortion
in AC operation)

Power requirements

For personal minidisc system:
120 V AC, 60 Hz
For back-up memory:
4.5 V DC, 3 size AA (R6) batteries
For remote control:
3 V DC, 2 size AA (R6) batteries

Power consumption

24 W

Dimensions (incl. projecting parts)

Approx. 498.5 

× 173.5 × 227 mm (w/h/d)

(17 

3

/

4

 

× 6 

1

/

2

 

× 9 

1

/

2

 inches)

Mass

Approx. 5.2 kg (13 lb. 4 oz)

Supplied accessories

AC power cord (1)
Remote control (RMT-CM35A) (1)
AM loop antenna (1)

Design and specifications are subject to change
without notice.

To Exposed Metal
Parts on Set

0.15µF

1.5k

Ω

AC
voltmeter
(0.75V)

Earth Ground

After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage. Check
leakage as described below.

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM

or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)

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.

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.