Sony str gx 311 service manual

Page 2

Tuner section

FM tuner section

AM tuner section

TABLE OF CONTENTS

Signal-to-noise 70 dB (mono) 54 dB (at 50 mV/rn)

ratio 66 dB (stereo)

Harmonic 0.3% (mono). 0.5% 0.5% (at 50 mV/m.
distortion (slereo) at 1 kHz 400 Hz)
Selectivity 60 dB at 400 kHz 30 dB at 10 kHz
Separation 45 dB at 1 kHz -
Frequency 30 Hz - 15 mm dB -
response

General

System

Tuner section: PLL quartz-locked digital
synthesizer system
Preamplifier section: lowmoise NF type equalizer amp
Power ampliiier section: pure complementary SEPP
Power requirements
220 - 230 V AC. 50/60 Hz
Power consumption
Model for Scandinavian countries. Switzerland, Spain and
Portugal: 110 W
Model lor other countries: 160 W
AC outlet
One switched (100 W Max.)
Dimensions
Approx. 480 x 135 x 305 mm (w/h/d)
(17 x 5 Jl8 x 11 7/8 inches)
including projecting parts and controls
Weight:
Approx. 6.2 kg (13 lb 1 oz)
Accessories supplied
FM wire antenna (1)
AM loop antenna (1)
Remote Commander RMVSHJS (1)
Sony batteries SUM»3(NS) (2)

Design and specifications are subject to change without notice.

Note
This appliance coniorms with EEC Directive 87/308/EEC regarding
interference suppression,

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SOHEMATIC 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.

Section Eta Bane
Tuning range 87.5 - 108 MHZ 531 - 1602 kHz
Antenna 75 ohms. unbalanced External antenna SECTION 1' GENERAL

terminal identifying the Paris and Controls

Sensitivity at 18.3 dBi, 22 [AV (mono) SECTION 2. ELECTRICAL ADJUSTMENTS ................... 4
50 dB quieting 40 dBi. 24.5 uv (stereo) -
Usable 11.2 dBf. 1 uv (iHF) Loop antenna: SECTION 3. i0 PlN FUNCTIONS .................................... 5
sensitivity 300 uV (at 999 kHz)

SECTION 4. DIAGRAMS

41. Circuit Boards Location
4-2. Semiconductor bead Layouts
4-3. Block Diagram...
44. Printed Wiring Board - Main Section -
4-5. Schematic Diagram - Main Section -.
4-6. Printed Wiring Board -~ Display Section -
4-7. Schematic Diagram -- Display Section -.
4-8. 1C Block Diagrams

SECTION 5. EXPLODED VIEWS
5-1. Front Panel Section
5-2. Chassis Section

SECTION 6.

MODEL IDENTIFICATION
- BACK PANEL -

l Ill III 'II I

I m in in i

4-957-709-1121 AEZ (AEPZ) : Scandinavian countries, Switzerland,
Spain and Portugal

4-957-709-0El AE1 (AEPt) :Olher European countries

4-957»709»2EI G : German model

ELECTRICAL PARTS LIST ....................... Z9