Sony ST-S444ES Service Manual

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FM tuner section : : : —s]
Tuning range
87.5 MHz - 108 MHz
Signal-to-noise ratio 5 is el
ns Gene
Antenna terminals Pe
75 ohms, unbalanced Harmonic distortion |Mono: 0.03 % (WIDE), 0.05 %
Intermediate frequency at 1 kHz (NARROW)
10.7 MHz Stereo: 0.04 % (WIDE), 0.06 %
(NARROW)
; IM distortion Mono: 0.03 % (WIDE), 0.05 %
AEP, UK model | US, Canadian, € Nesdon Re
(at 40 kHz model (at 75 kHz | Stereo: 0.04 % (WIDE), 0.06 %
deviation) deviation) | (NARROW)
| é
Sensitivity at 46 dB quieting |at50 dB quieting | Separation
17.3 dBf, 2 uV 16.8 dBf, 1.8 pV at 1 kHz 60 dB
(mono) (mono)
37.9 dBf, 22.5 yV| 37.9 dB, 22.5 pV Frequency response | 40 Hz - 12.5 kHz
(stereo) (stereo) +0.2 dB 30 Hz - 15 KHz
r 30 Hz - 15 kHz +0.2 dB
Usable sensitivity |10.3 dBf,0.9yV | 10.3 dBf, 0.94V +0.2 dB ve
(IHF) (IHF) ~0.5
0.8 pV (S/N = 26 dB) Selectivity at 300 kHz at 400 kHz
30 (WIDE)/57 60 (WIDEV90
_ (NARROW) dB (NARROW) dB
MICROFILM }
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND 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 PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
UNE MARQUE A SUR LES DIAGRAMMES SCHE-
MATIQUES ET LA LISTE DES PIECES SONT CRITIQUES
POUR LA SECURITE DE FONCTIONNEMENT. NE REM-
PLACER CES COMPOSANTS QUE PAR DES PIECES
SONY DONT LES NUMEROS SONT DONNES DANS CE
MANUEL OU DANS LES SUPPLEMENTS PUBLIES PAR
SONY.
US Model
Canadian Model
AEP Model
UK Model
E Model
Capture ratio 1.0 dB
AM suppression ratio 65 dB
Image response ratio 120 dB
IF response ratio 120 dB
— Continued on next page —
FM STEREO /FM-AM TUNER
ON Y.