Sony hst 211 service manual

Page 1

HST-211

SERVICE MANUAL

0 HST-211 are the
STEREO DECK RECEIVER
in SEN»211.

U8 Model
Canadian Model

Dolby noise reduction manufactured under license from
Dolby LBbOIaYOYIeS Licensmg Corporation.
"DOLBY and the double-D symbol DU are trademarks of
Dolby Laboratories Licensing Corporation

Model Name Using Similar Mechanism NEW
DECK A TCM-180VW-H2
DECK B TCM-180VW-H4

Tape Transport Mechanism Type

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:

With 8~ohm loads, both channels driven, from
40 . 20,000 Hz; rated 100 watts per channel
minimum HMS power, with less than 0.9%
total harmonic distortion from 250 milliwatts
to rated output.

Amplifier

Frequency response
PHONO: RIAA curve
CD. TAPE 2/VIDEO:
10 Hz- 50 kHz :3 dB

Input
Sensitivity Impedance
PHONO 2.5 mV 50 kohms
CD.
TAPE 2NlDEO 250 mV SO kohms
Output SPEAKER: Accepts speakers of 8 to
16 ohms

HEADPHONES: Accepts headphones
with low and high impedance
GRAPHIC EQUALIZER controls
Boost/Cut range:
:8 dB (100 Hz. 330 HZ. 1 kHz, 3.3kHz)
:6 as (10 kHz)

System FM stereo, FM/AM superheterodyne tuner
Quartz-locked digital synthesizer system
FM tuner section
Tuning range 37.5 - 108 MHz
Antenna terminals
75 ohms unbalanced
300 ohms balanced
Intermediate frequency
10.7 MHz
Sensitivity (at 50 d8 quieting )
22.1 dBI. 7 y.V (mono).
42.1 dBf. 70 11V (stereo)
Usable sensitivity 19.5 «131. 5 LLV (lHF)
Signal-to noise ratio (at 75 kHz deviation)
80 dB (mono), 75 dB (stereo) at 1 kHz
Separation 40 dB at 1 kHz
Selectivity 55 dB 51400 kHz
Hannonic distortion
0.3% (mono), 0.5% (stereo) at 1 kHz

- continued on next page -

COMPACT Hl-FISTEREUSYSTEM
SONY.

Page 2

HST-21 1

AM tuner section

Tuning range 530 - 1.710 kHz
Antenna AM loop antenna. External antenna
terminal
Intermediate frequency
450 kHz

Usable sensitivity AM loop antenna: 500 uV/m (1.000 kHz)
Signal-to-noise ratio

54 dB
Harmonic distortion

0.5%
Selectivity 38 dB (10 kHz)

Tape Deck

Recording system
4-track 2~channel stereo
Frequency response (DOLBY NR OFF)
With TYPE ll cassette (Sony UCX-S)
30-14900 Hz(13 :18)
With TYPE l cassette (Sony HF-S)
30 - 13.000 H2113 d6)

wow and flutter «112% WRMS (NAB)

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,meta1 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

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.

Power requirements
120 V AC. 60 Hz

Power consumption
175W (US model)
350VA (Canadian model)

Dimensions Approx. 430 x 277 x 297 mm (w/hld)
(17 x 11 x 113/. inches)
Weight Approx. 615 kg (18 lb 15 oz) net

Accessories supplied
AM loop antenna (1)
FM wire antenna (1)
Remote Commander RM-Si 12(1)
Sony batteries SUM 3(NS) (2)

Design and specifications subiect to change without notice.

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

F; 1.51m
L.

'7" Earth Ground

AC
/ voltmeter
(0. 75 V)

0.15uF

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

ATTENTION AUCOMPOSANT AYANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A
sun LES DIAGRAMMES SCHéMArioues ET LA LISTE
DES PIECES sou-r cnmouas POUR LA sécumré
DE FONCTIONNEMENTt NE REMPLACER ces com-
POSANTS oue PAR DES Places souv DONT LES
NUMéRos sonr ooNNés DANS ca MANUEL ou
DANS LES SUPPLEMENTS PUBLIES PAR SONY.