Sony XR-C7220 Manual de usuario

MICROFILM

SERVICE MANUAL

US Model

Canadian Model

XR-C7220

E Model

XR-C7300/C7300W

Model Name Using Similar Mechanism XR-C5100

Tape Transport Mechanism Type MG-25G-136

SPECIFICATIONS

XR-C7220/C7300/C7300W

For RM-X4S (Remote Commander),

please refer to RM-X4S Service Manual

(9-925-698-∏) previously issued.

– Continued on next page –

FM/AM (MW/SW)

CASSETTE CAR STEREO

Photo: XR-C7300

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.

“DOLBY”and thedouble-Dsymbolaare trademarks

of Dolby Laboratories Licensing Corporation.

– 2 –

TABLE OF CONTENTS

1. GENERAL

Location of Controls ....................................................... 3

Setting the Clock ............................................................. 3

Installation....................................................................... 4

Connections ..................................................................... 6

2. DISASSEMBLY ......................................................... 8

3. ASSEMBLY OF MECHANISM DECK........... 10

4. MECHANICAL ADJUSTMENTS ....................... 13

5. ELECTRICAL ADJUSTMENTS

Test Mode ........................................................................ 13

Tape Deck Section .......................................................... 13

Tuner Section .................................................................. 14

6. DIAGRAMS

6-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 17

6-2. Schematic Diagram – MAIN Section (1/3) –................. 19

6-3. Schematic Diagram – MAIN Section (2/3) –................. 21

6-4. Schematic Diagram – MAIN Section (3/3) –................. 23

6-5. Printed Wiring Board

– MAIN Board (Component Side) – .............................. 25

6-6. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................ 27

6-7. Printed Wiring Boards – PANEL Section – ................... 29

6-8. Schematic Diagram – PANEL Section – ........................ 31

6-9. IC Pin Function Description ........................................... 35

7. EXPLODED VIEWS................................................ 39

8. ELECTRICAL PARTS LIST ............................... 42

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.

– 3 –

SECTION 1

GENERAL This section is extracted from

instruction manual.

– 4 –

– 5 –

– 6 –

– 7 –

– 8 –

SUB PANEL ASS’Y

MECHANISM DECK (MG-25G-136)

Note: Follow the disassembly procedure in the numerical order given.

SECTION 2

DISASSEMBLY

claw

two claws

screw

(PTT2.6

)

sub panel ass’y

five screws

(PTT2.6

connector

(CN500)

flexible flat cable

(CN301)

mechanism deck

(MG-25G-136)

screw

(PTT2.6

connector

(CN302)

– 9 –

MAIN BOARD, HEAT SINK

two ground point

screws

three screws

(PTT2.6

two screws

(PTT2.6

10)

screw

(PTT2.6

three screws

(PTT2.6

heat sink

rubber cap (25)

two screws

(PTT2.6

main board

– 10 –

SECTION 3

ASSEMBLY OF MECHANISM DECK

HOUSING

ARM (SUCTION)

Note: Follow the assembly procedure in the numerical order given.

part

Hold the hanger by

bending the claw.

Fit projection on

part.

Fit claw on

part.

Put the housing

under

part.

Fit projection on

part.

Install the catch to the hanger.

Install the hanger onto

two claws of the housing.

Holder the hanger by bending the claw.

hanger

housing

Move the arm (suction) in the arrow

direction and fit on projection.

Fit the arm (suction) on the shaft.

projection

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