Sony xr 4200 r service manual

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2 Flexible Circuit Board Repairing - Keep the temperature of the soldering iron around 270 ËšC 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. 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 7. EXPLODED VIEWS ................................................ 30 8. ELECTRICAL PARTS LIST ............................... 33