Sony exr 25 service manual

Page 1

EXR-25

US Model

SERVICE MANUAL

EXR-25 mechanical and electrical specifications are almost same as XFt-5250
US model. Mainly AMS function is deleted.

This manual contains only the points which differ from XR-5250.

Please refer to XR-5250 service manuals (9-956-633-DEI) for the information not
contained in this manual.

XR-5250
MG-707V-35

Model Name Using Similar Mechanism
Tape Transport Mechanism Type

SPECIFICATIONS

Wlo Power Specifications
POINER OUTPUT AND TUI'AL HARMONIC DISTORTION

12 watts per channel minimum continuous average power into 4
ohms, both channels driven, from 30 to 20,000 Hz with no more than

1% total harmonic distortion.

I Other Specifications

Power amplltier section

Outputs Speaker outputs (sure seal
connectors)

Speaker impedance
4 - 8 ohms

Maximum power output
25 Wx2 (at 4 ohms)
15 W x4 (at 4 ohms)
Measured at 14.4 V

Cassette player section

Tape track 4-track 2-channel stereo
Frequency response
30 - 16,000 HZ
Signal-to-noise ratio
Cassette type Dolby B Dolby oil
TYPE II. IV 66 dB 58 dB
TYPE I 63 dB 55 dB

Wow and flutter 0.13% (WRMS)

Tuner section
System Superhelerodyne tuner
Computerized quartz-locked
synthesizer system
Antenna terminal

External antenna connector

9-957-015-11

1

FM tuner section
Tuning range 57.9- 107.9 MHz
Intermediate frequency

10.7 MHZ
Usable sensitivity

13 dBI (75 ohms)
Selectivity 75 dB at 400 kHz
Signal-tc-noise ratio

66 dB (stereo), 69 dB (mono)
Harmonic distortion at 1 kHz

09% (stereo), 0.5% (mono)

Separation 35 dB at 1 kHz
Frequency response
30-- 15.000 H2

Capture ratio 2 dB

AM tuner section
Tuning range 530 - 1,710 kHz
Intermediate frequency

450 kHz
Sensitivity 3514V

General
Tone controls Bass :8 dB at 100 Hz

Treble :8 dB at 10 kHz

Loudness +10 dB at 100 Hz
+6 dB at 10 kHz
Output lead Power antenna relay control lead

Power requirements
12 V DC car battery
(negative ground)
Approx. 178 x 50 x154 mm
(7va x 2 x 61/8 in.)
(w/h/d)
not incl. protecting parts and
controls
Mounting dimensions
Approx. 182 x 53 x145 mm
(714 x 2'13 x 53/4 in.)
(wlhld)
not incl. projecting parts and
controls
Weight Approx. 1.4 kg (3 lo. 1 oz.)
Accessories supplied
Mounting hardware (1 set)

Dimensions

Design and specifications subject to change without
notice.

FM/AM CASSETTE CAR STEREI]

Sony Corporation
Mobile Electronics Group

SONY.

Engllsh
92005244
Printed in Japan
© 1992. 3

Published by Customer Relations and Service Group

Page 2

1. DIFFERENT PARTS LIST
1-1. MECHANICAL PARTS

MODEL xn-szso EXFl-25 Page °f
Ref. XR-5250
No. DEscnlpnON us Model us Model Service Manual
5 BUTI'ON (MzNaP) 3'igfm59f 3366(§)492
29 LID ASSY, CASSEIrE mass-2224 X-3364-932-1 23
37 LABEL, MODEL NUMBER *3-366-85401 *3-378-464-01
51 MAIN BOARD, COMPLETE *A-3222-282-A *A-3222-4l7-A 24
153 LEVER ASSY, F. R X-3362-790-1 X-3362-792-1
168 SPRING, RELEASE PLATE 3-367-30801 Not usSd. 23
173 PLATE, RELEASE *3-367-30501 Not used See following
114 CORE. T 3-367-307-01 Not used. "9"
175 COIL ASSY. T 3-367-306-01 Not used.
223 SWITCH ASSY, POWER *3-367-312-01 *3-367-315-01 27
HP901 HEAD, CERAMIC (PLAYBACK) 1-543-329-11 1-543-377-11
ACCESSORIES & PACKING MATERIALS
HIMHHTHHHTTWITHIN.
MANUAL INSTRUCTION 3-753-11415-1 1 3-754-93221
(ENGLISH, FRENCH, (ENGLISH)
SPANISH, CHINESE 34
MANUAL, INSTALLATION, CONNECTIONS 3.753.047.11 3.754.933.21
ENGLISH, FRENCH, (ENGLISH)
SPANISH, CHINESE
INDIVIDUAL CARTON *3-369698-01 *3-379-334-01
xn-szso EXH-25