Sony mdp 455 sa service manual

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SERVICE MANUAL

MDP-4558A

RMT- M123

E Model

Type CD/CDV/LD Player
Signal readout
Signal format system
Playing time

SPECIFICATIONS

Optical (Laser beam reflection)
EIA standard, NTSC color system

(minutes)
30 cm (12 in)
double-sided 5°
20 cm (a in)
CAV double-sided 28
20 cm (8 in)
LB single-sided 4
30 cm (12 in)
double-sided 120
20 cm (a in)
CLV double-sided 4°
20 cm (s in)
singlesided 20
12 cm (5 in)
single-sided 74
CD ,
8 cm (3 In)
single-sided 2°
Audio portion 20
CDV V
Video portion 5
Digital audio specifications
Frequency response 4 Hz to 20kHz (:03 dB)

Signal-to-noise ratio
Dynamic range
Wow and flutter

More than 115 dB (EIAJH
More than 99 dB (EIAJ)
Below measurement limit
(=0.001% WlPEAK) (ElAJ)

Video specifications

Horizontal video 425 lines
resolution
Signal-to-ncise ratio More than 50 dB

Input/output specifications
Video output 1, 2 1.0 Vp-p, 75 ohms, unbalanced
Audio output 1, 2 Stereo L, R
Analog: 200 mVrms
(1 kHz, 40% modulation)
Digital: 200 mVrms
(1 kHz, -20 dB)
Luminance: 1 Vp-p, 75 ohms,
unbalanced, sync negative
Chrominance: 0.286 Vp-p,
75 ohms, unbalanced
18 dBm, wavelength 660 nm

8 video output 1, 2

Audio digital output

(optical)
Headphone output 28 mW (32 ohms)
Impedance = 8 ohms
CONTROL S W Mini jack
Mic jack Standard jack

1mV (impedance below 1 kiloohm)

* Measured according to EIAJ (Electronic industries
Association or Japan) standards,

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@ CD/CDV/LD PLAYER

SONY;

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Power requirements

Power requirements 100/120/220/240 V AC
adjustable, 50/60 HZ

Power consumption 40 W

Mass 8 kg

Dimensions Approx. 430 x 115 x 410
mm
(w/h/d)

Operating temperature +5°C to +35 °C

Ambient humidity 5% to 90%

Remote Commander RMT-M128
Principle of operation Infrared pulse

Power requirements 3 V DC (2 size AA
batteries)

Dimensions Approx. 68 x 38 x 200
mm
(w/h/d)

Mass Approx. 175 9

(including batteries)

S pplied accessories

Remote Commander FtMT-M12B (1)

Size AA (R6) batteries (2)

Video cable (phono plug 1ephono plug 1) (1)
Audio cable (phono plug Zephono plug 2) (1)
AC plug adaptor (1)

Design and specifications are subject to change
without notice.

To prevent fire or shock hazard. do not expose the unit to
rain or moisture.

To avoid electrical shock. do not open the cabinet Refer
servicing to qualified personnel only.

- WARNING lI
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 25 cm FROM THE SURFACE OF THE OBJECTIVE
LENS ON THE OPTICAL PICK-UP BLOCK.

CAUTION:

The use of optical instrument with this product will
increase eye hazard.

CAUTION

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

Laser component in this product is capable of emitting

radiation exceeding the limit for Class 1.

This CD CDV LD player is
cuss , usen PRODUCT classified as a CLASS 1
LASER KLASSE I IASER product,

The CLASS 1 LASER
PRODUCT label is located
on the rear exterior.

LUOKAN t LASEHLAITE
KLASS 1 LASERAPPARAT

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED
LINE WITH MARK A 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 PUB-
LISHED BY SONY.