Sony xr 3503 mk2 service manual

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XR-3503MK2

SERVICE MANUAL East European Model

Model Name Using Similar Mechanism XR-3503

Tape Transport Mechanism Type MG-36826-32
SPECIFICATIONS
Cassette player section General
Tape track 4-track 2-channel stereo Output lead Power antenna relay
Wow and flutter 0J3 % lWRMS) control lead
Frequency response 30 - l5,000 Hz Tone controls Bass :8 dB at 100 Hz
Signal-tee noise ratio 55 dB Treble :8 dB at 10 kHz
Power requirements [2 V DC car battery
. (negative ground)

Tuner seam Dimensions Approx 156 x 57x17!) mm
FM (W/h/d)
Tuning range 65.0 - 74.0 MHz Mounting dimension Approx 182 x 53 x 155 mm

87.5 - 108.0 MHZ (w/h/d)
Antenna terminal External antenna connector Mass Approx. 1.2 kg
Intermediate frequency 10.7 MHz Supplied accessories Parts {or installation and
Usable sensitivity i2 dBf connections (1 set)
Selectivity 70 dB at 400 kHz Front panel case (it
Signal-to-noise ratio 65 dB (stereo),

68 d8 (mono)
Harmonic distortion at 1 kHz Design and specifications are subject to change wit/rout

0.5% (stereo), notice

03% (mono)
Separation 35d at i ktlz
Frequency response 30 - l5,000 Hz
Capture ratio 2 d B
MW/LW
Tuning range MW: 531 -1,602 kHz

LW 1133-231 kHz .
Antenna terminal External antenna connector "mes 0" Chlp Component Replacement
lnterrnediate frequency 450 kHz . Never reuse a disconnected chip component.
semmmy {iv-33,33 - Notice that the minus side of a tantalum capacitor may be

damaged by heat.
Power amplifier section

Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 - 8 ohms

FM/MW/LW until i CAR STEREO

SONY;

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TABLE OF CONTENTS

GENERAL
Button Locations .................................. 3
Setting the Clock ................................. 3
Cassette Player Operation ..........
Radio Reception .................................... 4
Other Functions .................................... 5
Connections ........................................ 6
DISASSEMBLY
Cover ............................................ 8
Sub Panel Assy .................................. 8
Mechanism Deck Block
Main Board ...................................... 9
MECHANICAL ADJUSTMENTS .................. 10

ELECTRICAL ADJUSTMENTS

Deck Section ....................................... 10
Tuner Section .................................... 11
DIAGRAMS
IC Pin Description .............................. 14
Printed Wiring BoardsiMain Section- .......... 16
Schematic Diagram~Main Section- .......... 19
Printed Wiring Board-Panel Section- .......... 24
Schematic Diagram-Panel Section~ .......... 27

EXPLODED VIEWS

Chassis Section .................................. 30
Front Panel Section ........................... 31
Mechanism Section (1) .......................... 32
Mechanism Section (2) .......................... 33
ELECTRICAL PARTS LIST ...................... 34