Sony tc k 909 es service manual

Page 2

Outputs
Line outputs Rated output 0.5 V at a load
(phono jacks) level impedance of
47 k ohms
Load
impedance Over 10 k ohms
Headphones Output level 0 - 3 mW at a load

(stereo phone jack)

impedance of
32 ohms

General
Power requirements

Power consumption
Dimensions

Mass

120V AC, 60 Hz (US, Canadian model)
220-230V AC, 50/60Hz
(AEP, German model)
120, 220 or 240V AC adjustable,
50/60 Hz (E model)
26W
Approx. 470 X 135 X 350 mm (wlh/d)
(185/e>< 5% x 137/»; inches)
including projecting parts and controls
Approx. 8.2 kg (18 lbs 2 oz)

Supplied accessories
Audio connecting cords (2)

M3><8 screws (4)

Remote commander RM-J701 (1) (E model)
Sony SUM-3 (NS) batteries (2) (E model)
AC plug adaptor (1) (E model)

Design and specifications are subject to change without
notice.

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A 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.

ATTENTION AU COMPOSANT AVANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A
sun LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
DES PIECES SONT camouEs POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER cEs COM-
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SDNT DONNES DANS CE MANUEL ou
DANS LES SUPPLEMENTS PUBLIES PAR 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 Iimit indication is 075 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 Sat

I c
A
0.15uF glikfl / voltmeter

(0.75l/l

? Earth Ground

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