Sony ST-JX44L Service Manual

MICROFILM
SPECIFICATIONS
FM tuner section
Tuning range
Antenna terminals
87.5 MHz - 108 MHz
300 ohms, balanced
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
(at 40 kHz deviation)
at 46 dB quieting
17.3 dBf, 4 pV (mono)
Sensitivity
38.3 dBf, 45 pV
(stereo)
10.3 dBf, 1.8 uV (IHF)
1.6 pV (S/N = 26 dB)
Usable sensitivity
76 dB (mono)
71 dB (stereo)
Signal-to-noise ratio
Harmonic distortion
at 1 kHz 0.08% (mono)
0.15% (stereo)
IM distortion 0.08% (mono)
0.15% (stereo)
Separation
at 1 kHz 50 dB
40 Hz — 12.5 kHz +0.5 dB
30 Hz - 15 kHz +95 dB
Frequency response
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS, EXPLODED
VIEWS 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.
Selectivity
Capture ratio
AM suppression ratio
at 300 kHz
80 dB
60 dB
Image response ratio 50 dB
IF response ratio 90 dB
Spurious response ratio | 70 dB
RF intermodulation 60 dB (IHF)
Muting threshold
approx. 25.2 dBf, 10 pV
Output level/
impedance
at 75 kHz deviation
750 mV, 4.7 k ohms
— Continued on page 2 —
ATTENTION AU COMPOSANT AYANT RAPPORT
ALA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
UNE MARQUE /\ SUR LES DIAGRAMMES SCHE-
MATIQUES, LES VUES EXPLOSEES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES
COMPOSANTS QUE PAR DES PIECES SONY DONT
LES NUMEROS SONT DONNES DANS CE MANUEL
OU DANS LES SUPPLEMENTS PUBLIES PAR SONY.
®)
SERVICE MANUAL