Read Sony XR-4200R / XR-4300R / XR-4300RX Service Manual online
2
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-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TABLE OF CONTENTS
1.
GENERAL
Location of controls ........................................................
3
Resetting the unit ............................................................
3
Detaching the front panel ................................................
3
Setting the clock ..............................................................
3
Installation .......................................................................
4
Connections .....................................................................
5
2.
DISASSEMBLY
.........................................................
8
3.
ASSEMBLY OF MECHANISM DECK
........... 10
4.
MECHANICAL ADJUSTMENTS
....................... 13
5.
ELECTRICAL ADJUSTMENTS
......................... 13
6.
DIAGRAMS
6-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 15
6-2. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 16
6-3. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 17
6-4. Schematic Diagram – MAIN Board (1/2) – ................... 18
6-5. Schematic Diagram – MAIN Board (2/2) – ................... 19
6-6. Printed Wiring Board – KEY Board – ........................... 20
6-7. Schematic Diagram – KEY Board – ............................. 21
6-8. Printed Wiring Board – SUB Board – ........................... 22
6-9. Schematic Diagram – SUB Board – .............................. 22
6-10. IC Pin Function Description ........................................... 26
6-5. Schematic Diagram – MAIN Board (2/2) – ................... 19
6-6. Printed Wiring Board – KEY Board – ........................... 20
6-7. Schematic Diagram – KEY Board – ............................. 21
6-8. Printed Wiring Board – SUB Board – ........................... 22
6-9. Schematic Diagram – SUB Board – .............................. 22
6-10. IC Pin Function Description ........................................... 26
7.
EXPLODED VIEWS
................................................ 30
8.
ELECTRICAL PARTS LIST
............................... 33
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