Sony XR-3758 User Manual

MICROFILM
XR-3758/3759
FM/MW/LW CASSETTE CAR STEREO
SERVICE MANUAL
UK Model
Model Name Using Similar Mechanism XR-3750/C350
Tape Transport Mechanism Type MG-52A-135
• XR-3758/3759 are almost same as XR-3750 UK model.
Printed wiring boards, schematic diagram, exploded views
and electrical parts list are described in this service manual.
Please refer to XR-3750/C350 service manual previously
issued for the other informations.
TABLE OF CONTENTS
1. EXPLODED VIEWS ................................................ 2
2. DIAGRAMS
2-1. Printed Wiring Boards –MAIN Section– ........................ 6
2-2. Schematic Diagram –MAIN Section– ............................ 9
2-3. Printed Wiring Board –KEY Section– ........................... 14
2-4. Schematic Diagram –KEY Section– .............................. 16
3. ELECTRICAL PARTS LIST ................................ 19
Photo: XR-3759
SERVICING NOTES
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
MC-Service

Sony XR-3758 Specifications

General

Brand	Sony
Model	XR-3758
Category	Car Receiver
Language	English

Summary

Servicing Notes

Flexible Circuit Board Repair

Guidelines for repairing flexible circuit boards, including temperature control.

Chip Component Replacement Precautions

Advice on replacing chip components and handling tantalum capacitors.

Exploded Views - Chassis Section

Chassis Section

Exploded view of the chassis assembly components.

Exploded Views - Front Panel Section

Front Panel Section

Exploded view of the front panel assembly components.

Exploded Views - Mechanism Deck Section 1

Mechanism Deck Section 1

Exploded view of the mechanism deck section 1 components.

Exploded Views - Mechanism Deck Section 2

Mechanism Deck Section 2

Exploded view of the mechanism deck section 2 components.

Main Section Diagrams

Printed Wiring Boards - Main Section

Printed wiring layout for the main circuit board.

Schematic Diagram - Main Section

Electrical schematic for the main circuit board.

Key Section Diagrams

Printed Wiring Board - Key Section

Printed wiring layout for the key control section.

Schematic Diagram - Key Section

Electrical schematic for the key control section.

Electrical Parts List