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XR-CA600X/CA620X
TABLE OF CONTENTS
1. GENERAL
Location of Controls ....................................................... 3
Setting the Clock ............................................................. 5
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 9
2-2. Sub Panel Assy ................................................................ 9
2-3. Mechanism Deck (MG-25F-136) ................................... 10
2-4. MAIN Board ................................................................... 10
2-5. Heat Sink (2P) ................................................................. 11
3. ASSEMBLY OF MECHANISM DECK
3-1. Housing ........................................................................... 12
3-2. Arm (Suction) ................................................................. 12
3-3. Lever (LDG-A)/(LDG-B) ............................................... 13
3-4. Gear (LDG-FT) ............................................................... 13
3-5. Guide (C) ......................................................................... 14
3-6. Mounting Position of Capstan/reel Motor (M901) ........ 14
4. MECHANICAL ADJUSTMENTS ....................... 15
5. ELECTRICAL ADJUSTMENTS
Tape Deck Section .......................................................... 15
Tuner Section .................................................................. 15
6. DIAGRAMS
6-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 15
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 – SUB Board – ............................ 20
6-7. Schematic Diagram – SUB Board – ............................... 20
6-8. Printed Wiring Board – KEY Board –............................ 22
6-9. Schematic Diagram – KEY Board – .............................. 23
6-10. IC Pin Function Description ........................................... 24
7. EXPLODED VIEWS
7-1. General Section ............................................................... 26
7-2. Front Panel Section ......................................................... 27
7-3. Mechanism Deck Section (MG-25F-136) ...................... 28
8. ELECTRICAL PARTS LIST ............................... 29
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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