Sony xr 3503 service manual

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XR-3503

SERVICE MANUAL East European Model

Model Name Using Similar Mechanism XR»1853

Tape Transport Mechanism Type MG-36SZ6-32
SPECIFICATIONS
Cassette player section General
Ta pe track 4-track 2-channel stereo Output lead Power antenna relay
Wow and flutter 0.13 % (WRMS) control lead
Frequency response 30 - 16,000 Hz Tone controls Bass :8 dB at 100 Hz
Signal~to noise ratio 55 dB Treble :8 dB at 10 kHz
Power requirements 12 V DC car battery
~ (ne ative ound)
Tu ner sedlon Dimensions Apgrox. 1%; x 57 x 170 mm
FM (w/h/d)
Tuning range 650 - 74.0 MHz mounting dimension Approx. 182 x 53 x 154 mm
87.5 - 108.0 MHz (W/ 11/ d)
Antenna terminal External antenna connector Mass Approx. 113 kg
Intermediate frequency 1017 MHz Supplied accessories Parts for intallation and
Usable sensitivity 12 dBf connections (1 set)
Selectivity 75 dB at 400 kHz Front panel case (1)
Signal-tomoise ratio 60 dB (stereo).
65 dB (mono)
Harmonic distortion at 1 kHz Design and specifications are subject ta change without
06% (stereo), notice
0.4% (mono)
Separation 30 dB at 1 kHz
Frequency response 30 - 15,000 Hz
Capture ratio 4 dB
MW/LW
Tuning range MW: 531 - 1,602 kHz
LW : 153 - 281 kHz
Antenna terminal External antenna connector

Imemedmefmumq 430 kHz Notes on Chip Component Replacement
Sensitivity tViW:§DpV - Never reuse it disconnected chip component.
Lw 30 V a Notice that the minus side of a tantalum capacitor may be

Power amplifier section damaged by heat.

Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 - 3 ohms

FM/MW/LW CASSETTE CAR 31mm
S O N I

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TABLE OF CONTENTS

Section Title nge

1. GENERAL
Button Locations ................................ 3
Setting the Clock ............................... 3
Cassette Player Operation .......................... 3
Radio Reception .................................... 4
Other Functions .................................... 5
Connections ....................................... 6

2. DISASSEMBLY

2-1. Cover ............................................ 8

22. Sub Panel Assy .................................. 8

2-3. Mechanism Deck Block

2-4. Main Board ...................................... 9

3. MECHANICAL ADJUSTMENTS .................. 10

4. ELECTRICAL ADJUSTMENTS

51.
5-2.
5-3.

6-1.
6-2.
6-3.
6-4.

Deck Section ...................................... 10
Tuner Section .................................... 11
DIAGRAMS

IC Pin Description .............................. 15

Printed Wiring Boards . .
Schematic Diagram .............................. 21

EXPLODED VIEWS

Chassis Section .................................. 28
Front Panel Section ............................ 29
Mechanism Section (1) .......................... 30
Mechanism Section (2) .......................... 31
ELECTRICAL PARTS LIST ...................... 32