2
XR-CA400/CA420X
TABLE OF CONTENTS
1.
GENERAL
Location of Controls .......................................................
3
Setting the Clock .............................................................
3
2.
DISASSEMBLY
.........................................................
8
3.
ASSEMBLY OF MECHANISM DECK
........... 10
4.
MECHANICAL ADJUSTMENTS
....................... 13
5.
ELECTRICAL ADJUSTMENTS
Tape Deck Section .......................................................... 13
Tuner Section .................................................................. 13
6.
DIAGRAMS
6-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 14
6-2. Printed Wiring Board – MAIN Board – ......................... 16
6-3. Schematic Diagram – MAIN Board (1/3) – ................... 17
6-4. Schematic Diagram – MAIN Board (2/3) – ................... 18
6-5. Schematic Diagram – MAIN Board (3/3) – ................... 19
6-6. Printed Wiring Board – KEY Board – ............................ 20
6-7. Schematic Diagram – KEY Board – .............................. 21
6-8. IC Pin Function Description ........................................... 22
7.
EXPLODED VIEWS
................................................ 24
8.
ELECTRICAL PARTS LIST
............................... 27
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.
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.
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