Sony cdx 444 rf service manual

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3 CDX-444RF Ver 1.3 T ABLE OF CONTENTS SERVICING NOTES .......................................................... 2 1. GENERAL Location and Function of controls.................................. 4 Installation ....................................................................... 8 Connections ..................................................................... 9 2. DISASSEMBLY ......................................................... 10 3. MECHANISM DECK ASSEMBLY ................... 16 4. MECHANICAL ADJUSTMENTS ....................... 18 5. ELECTRICAL CHECK .......................................... 19 6. DIAGRAMS 6-1. Block Diagram – SERVO Section –.............................. 21 6-2. Block Diagram – MAIN Section –................................ 22 6-3. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 23 6-4. Printed Wiring Boards – RF/LSW Boards –................. 24 6-5. Schematic Diagram – RF/LSW Boards –...................... 25 6-6. Printed Wiring Boards – MAIN Board (Component Side) –.............................. 26 6-7. Printed Wiring Boards – MAIN (Conductor Side)/SW Boards –....................... 27 6-8. Schematic Diagram – MAIN Board (1/2) –.................. 28 6-9. Schematic Diagram – MAIN (2/2)/SW Boards –......... 29 6-10. Printed Wiring Boards – FM Board –............................ 30 6-11. Schematic Diagram – FM Board –................................. 31 6-12. IC Pin Function Description........................................... 35 7. EXPLODED VIEWS ................................................ 37 8. ELECTRICAL PARTS LIST ............................... 43 TEST DISC This set can playback a CD-R, CD-RW for audio use. When test this set, use the following test disc. T est disc for CD-R: TCD-R082LMT (Part No.: J-2502-063-1) Notes on CD-R discs You can play CD-Rs (recordable CDs) designed for audio use on this unit. Look for this mark to distinguish CD-Rs for audio use. This mark denotes that a disc is not for audio use. Some CD-Rs (depending on the equipment used for its recording or the condition of the disc) may not play on this unit. You cannot play a CD-R that is not finalized *. * A process necessary for a recorded CD-R disc to be played on the audio CD player. power supply cord (J-2502-058-2) compact disc changer RF output cord (J-2502-058-1) wirerd remote commander JIG ON REPAIRING When repairing this set, connect the jig (cord) for RF output ex- tract (Part No. J-2502-058-1) and power supply (Part No. J-2502- 058-2) as the figure shown below.