Sony cdp s27 cdp s107

Page 1

SERVICE MANUAL

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PHOTO: GDP-527

AEP Model

UK Model
E Model

CUP-$27:

US Model

AEP Model

CDP-S 707:

System Compact disc digital audio
system

Laser Semioonductor laser
(A = 780 nm)

Laser output Max 44.6 uw

Thls output is the value measured

at a distance 0' about 200 mm

from the objectlve lens surface on

the Optical Pickup Block.
Frequency response

5 Hz - 20kHz (:23 dB)
Signal to noise ratio More than 95 dB
Dynamic range More than 90 dB
Harmonlc dlstortlon Less than 0.05% (at 1 kHz)
Channel separation More than 90 dB

Wow and flutter Below measurable limit (10.001 0/n
w. PEAK)
Output Load
/9" level impedance
, 2 V (50 more than 10
LINE OUT Phono Ck kllohms) kllohms
HEAD Stereo 4.5 mW _
PHONES minljack (32 ohms)

SPECIFICATIONS

General
com I W107
PM US MODEL: 120v Ac,60Hz
requllsments UK MODEL: 240V AC, 50H:
AE P M 0 DE L :
220V AC, 50/60Hz
E MODE L:
110-120 and 220-240V AC
adj usteble, 50/60 Hz
Power ,
consumption 12 W
Dimensions 215x53x228 245x53x228
(Approx; mm mm
(Wild) (84/2 x 2'1: x e (95/. x 2-1. x 9
inches) inches)
Includlng projecting parts and
controls
Weight 2.0 kg
WW" not) (4 lbs 7 oz)
Supplied Connecting cord (2 phono plugs e-v
accessories 2 phono plugs) (1)
8 cm CD single adaptor (1)

comm msc PLAYER
SONY;

Page 2

CDP-SZ7/S107

FEATURES

0 Program play for playing the selections in a
desired order

0 Shuttle play for playing the selections in a
random order

. Repeat function for a single selection, the
whole disc, program play. or shuttle play

0 Easy-tweed display window shows the track
number being played, elapsed playing time,
and the remaining time

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 poten-
tial 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 flexible board is easily damaged and should be
handled with care.

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BV MARK & OR 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.

SAFETY CHECK-OUT

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.

LEAKAGE TEST

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 microampers). 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 instru-
ments.

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 volt-
meter, 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 2 V AC range are
suitable. (See Fig. A)

To Exposed Metal
Parts on Set

A C
voltmeter
(0. 75 V)

0. I5uF

5; 1.51m /
;_l

'7' Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.