Sony xr 4257 service manual

Page 2

XR4240/ 4250/ 4252/ 4257

WARNING I!

ADVARSEL!
Lithiumbatteri - Eksplosionsfaxe
Udskiftning m5 kun foretages
af en sagkyndig, cg som
beskrevet i servicemanualen.

LITHIUM BATTERY

SHOULD ONLY BE CHANGED BY TECHNICAL
PERSONNEL. THERE IS A RISK FOR EXPLOSION
AT A WRONG HANDLING.

Batteriet ma kun udskiftes med et batteri af samme
fabrikat og type.

Because of the risk for explosion the battery must
be replaced with the same type and manufacture.

MODEL IDENTIFICATION
-Specification Label-

Section

Specifications ..........
Model Identification

1.

TABLE OF CONTENTS

Page
I
2

GENERAL

1-1. Location and Function of Controls ---------------------- 3
12. Installation ~- 5
1-3. Connections' ...5
ADJUSTMENTS .......................................................... 8
DIAGRAM-S

31, 1C Block Diagrams ............................................ 14

32. Printed Wiring Boards-
33 Schematic Diagram ------
EM. FM/AM Front End Schematic Diagram--

-25

EXPLODED VIEWS .................................................. 27

ELECTRICAL PARTS L|ST--~

XR-4240/4250/4252/4257

SONY;

FM/AM CASSETTE CAR STEREO

FREQUENCY RANGE :

/

MODEL N0. mafia

XR-4240/4250(E): FM 87.5-108
AM 531-l,602kHz
with 9kHz spacing
AM 530-1,620kHz
with IOkHz spacing

XR-4250(AEP)/4252 : FM 87.5-108MHz
AM 531 -1,602kH2

XR-4257: FM 87.9-107.9MHZ
AM 530-1,710kHz