Sony XR-3740 / XR-C340 Service Manual ▷ View online
MICROFILM
XR-3740/C340
AEP Model
UK Model
SERVICE MANUAL
FM/MW/LW CASSETTE CAR STEREO
SPECIFICATIONS
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MG-52A-135
Refer to RM-X2S/X3S SERVICE MANUAL (9-960-039-
∏
)
issued previously for information of remote commander
(RM-X2S) supplied with XR-C340.
(RM-X2S) supplied with XR-C340.
Photo: XR-C340
– 2 –
TABLE OF CONTENTS
1.
GENERAL
Location of Controls (XR-3740) ..................................... 3
Location of Controls (XR-C340) ..................................... 4
Installation ....................................................................... 5
Connections ..................................................................... 6
Location of Controls (XR-C340) ..................................... 4
Installation ....................................................................... 5
Connections ..................................................................... 6
2.
DISASSEMBLY
.......................................................... 10
3.
ASSEMBLY OF MECHANISM DECK
........... 12
4.
MECHANICAL ADJUSTMENTS
....................... 18
5.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 18
Tape Deck Section ........................................................... 19
Tuner Section ................................................................... 19
Tape Deck Section ........................................................... 19
Tuner Section ................................................................... 19
6.
DIAGRAMS
6-1. IC Pin Function Description ............................................ 22
6-2. Printed Wiring Boards –Main Section– ........................... 24
6-3. Schematic Diagram –Main Section– .............................. 27
6-4. Printed Wiring Board –Key Section– ............................. 32
6-5. Schematic Diagram –Key Section– ................................ 34
6-2. Printed Wiring Boards –Main Section– ........................... 24
6-3. Schematic Diagram –Main Section– .............................. 27
6-4. Printed Wiring Board –Key Section– ............................. 32
6-5. Schematic Diagram –Key Section– ................................ 34
7.
EXPLODED VIEWS
................................................ 39
8.
ELECTRICAL PARTS LIST
................................ 43
SERVICING NOTES
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270 ˚ C dur-
ing repairing.
ing repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering
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.
aged by heat.
– 3 –
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
– 4 –
