Sony xr 2300 service manual

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EXR-TO/XR-2300

SERVICE MANUAL

US Model

EXH-IO

US Model
Canadian Model

X [7-2300

Photo: XR-2300 model

EXR-12, XR-6077
MG -36$HJ-32

Model Name Using Similar Mechanism
Tape Transport Mechanism Type

SPECIFICATIONS
AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
4 watts per channel minimum continuous average power into 4

ohms, both channels driven, from 150 to 20,000 Hz with no more

than 1.5% total harmonic distortion.

Tuner section

Tuning range
Antenna terminal

Usable sensitivity
Selectivity

Signalvtomoise ratio
Harmonic distortion at 1 kHz
Separation

Frequency response
Capture ratio

AM

Tuning range
Antenna terminai
Sensitivity

Cassette player section
Tape traok

Frequency response
Signal-to-nmSe ratio

Wow and flutter

Power amplifier section
Outputs

Speaker impedance
Maximum power output

37.5 - 107.9 MHz

External antenna connector/Power amenna relay control lead
13 GET o5 ohms)

more than 70 dB at 400 kHz

as dB (Stereo), 63 a3 (monaural)

0.9% (stereo) 0.5% (monaurai)

35 dB or 1 kHz

so - r5000 Hz (:3 as)

2.0 dB

530 ~ 1.710 kHz
External antenna connector/Poweranienna relay control lead
32 uv

A-track 2~channel stereo

30 - 15,000 Hz

55 dB with TYPE I cassettes
0.1 5%

Speaker outputs (sure seal connectors)
4 - 3 ohms

7.5 W x 2 (ai 4 ohms)

4 w x 4 (314 ohms)

General
Tone controls Bass 18 dB at 100 Hz
Treble 28 dB 8| \0 kHz
+10 dB at 100 Hz
12 V 00 car battery (negalive ground)
Approx. 178 x 50 x 134 mm (wlh/d)

(71m x 2 x 53/3 in.)
Mass Approx. 1.2 kg (2 lb. 10 oz.)
Accessones supplied Mounting hardware (I set)

Power connectiong cord (1)

Loponess
Power requirements
Mounting dimensions

Design and specifications subject To change wlihoul notice.

I'M/AM CASSETTE CAR STEREO

ONY;

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Features

Tuner section

~SSIR (Sony Super lnterference Rejection) PLL
Synthesizer tuner.

'The quartz-locked digital synthesizer system
enables easy and accurate tuning.

'Up to 12 FM and 6 AM stations can be preset.

~Automatic memory function allows you to store
a total of 18 stations in the memory quickly
and easily.

Cassette player section

The auto-reverse function changes the tape
direction automatically.

Power amplifier section

0 Fader control for playback with a 4-speaker
system.

0 Maximum power output of 4 watts over 4
channels or 7.5 watts over 2 channels.

General
The quartz controlled digital clock.

SERVICING NOTE

Notes on chip component replacement

0 Never reuse a disconnected chip component.
0 Notice that the minus side of a tantalum capacitor
may be damaged by heat.

TABLE OF CONTENTS

Section itle Page
Specifications ........................................... 1
Features ................................................ 2
Servicing Note .......................................... 2

SECTION 1. GENERAL

Location and Function of Controls ~~~~~~~~~~~~~~~~~~~~~ 3
Installation .............................................. 4
Connections ............................................. 5
sec'nou 2_ DISASSEMBLY ........................... 6

SECTION 3. ADJUSTMENTS
3.1. Mechanical Adjustment .......................... 7
3.2, Electrical Adjustments ........................... 7

SECTION 4. DIAGRAMS

4.]. Block Diagram ............................. 10
4-2. Semiconductor Lead Layouts ~~~~~~~~~~~~~~ 13
4-3. Printed Wiring Boards (EXR-lO model) ~~~~~~~ 14
44. Schematic Diagram (EXR-lo model) 17
4-5. Schematic Diagram (KR-2300 model) ~ 21
4-6. FEl FM Front End Schematic Diagram - 24
4-7. Printed Wiring Boards (XR~2300 model) ~ 25
48. IC Block Diagrams ~ 29

SECTIONS. EXPLODED VIEWS
5-1. Chassis Assembly-1 ~~~~~~~~~~~~~~~
52. Chassis Assembly-2 ---------------
53. MD Assembly-1 (MG-36$HJ-32)~
54. MD Assembly-2 (MG-36$HJ»32) -~

SECTION 6. ELECTRICAL PARTS LIST ~
Hardware List '-