Table Of Contents; Service Note - Sony xr-c7350x Service Manual

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TABLE OF CONTENTS

1. SERVICE NOTE
............................................................. 2
2. GENERAL
........................................................................ 3
3. DISASSEMBLY
.............................................................. 8
4. ASSEMBLY OF MECHANISM DECK
5. MECHANICAL ADJUSTMENTS
6. ELECTRICAL ADJUSTMENTS
6-1. Test Mode ........................................................................ 12
• Tape Deck Section ........................................................ 12
• Tuner Section ................................................................ 12
7. DIAGRAMS
7-1. Block Diagrams
• TUNER/TAPE/MAIN Section ..................................... 13
• DISPLAY/KEY CONTROL/BUS CONTROL/
POWER SUPPLY Section ........................................... 14
7-2. Schematic Diagram - PRE OUT Board - ...................... 15
7-3. Printed Wiring Board - PRE OUT Board - .................. 15
7-4. Printed Wiring Board - MAIN Board - ......................... 16
7-5. Schematic Diagram - MAIN Board (1/2) - ................... 17
7-6. Schematic Diagram - MAIN Board (2/2) - ................... 18
7-7. Printed Wiring Boards - KEY/SUB Boards - .............. 19
7-8. Schematic Diagrams - KEY/SUB Boards - .................. 20
7-9. IC Block Diagrams ......................................................... 21
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L 13942296513
7-10. IC Pin Function ............................................................... 22
8. EXPLODED VIEWS
9. ELECTRICAL PARTS LIST
Please press on the sub board from above when checking it.
This assures that the connector does not lose contact.
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SECTION 1

SERVICE NOTE

SUB board
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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.
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Front panel assembly
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