Sony xdp 4000 x service manual

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Ð 2 Ð SECTION 1 SERVICE NOTE TABLE OF CONTENTS 1. SERVICE NOTE ................................................................. 2 2. GENERAL Operation ................................................................................. 4 Connection ............................................................................... 5 3. DISASSEMBLY 3-1. Case (Upper) ....................................................................... 7 3-2. Main Board ......................................................................... 7 4. DIAGRAMS 4-1. IC Pin Descriptions ............................................................ 8 4-2. Block Diagram Ð Input section Ð ...................................... 15 4-3. Block Diagram Ð DSP section Ð ....................................... 17 4-4. Block Diagram Ð Output section Ð ................................... 19 4-5. Printed Wiring Board Ð Main Section Ð ........................... 21 4-6. Schematic Diagram Ð Main Section (1/4) Ð ..................... 25 4-7. Schematic Diagram Ð Main Section (2/4) Ð ..................... 27 4-8. Schematic Diagram Ð Main Section (3/4) Ð ..................... 29 4-9. Schematic Diagram Ð Main Section (4/4) Ð ..................... 31 4-10. Schematic Diagram Ð DAC, Intelligence, Indicator Section Ð ............................................................ 33 4-11. Printed Wiring Board Ð DAC Section Ð ........................... 35 4-12. Printed Wiring Boards Ð Intelligence, Indicator Section Ð ............................................................ 37 5. EXPLODED VIEW ........................................................... 43 6. ELECTRICAL PARTS LIST ......................................... 44 + -� BATT,ACC GND master unitregulated DC power supply (14.4V) + -� B+ GNDregulated DC power supply (14.4V) BUS CONTROL IN BUS CONTROL IN (MASTER) XDP-4000X METHOD OF OPERATING THE XDP-4000X This set cannot be operated alone. To operated this, it should be connected with a master unit such as CDX-C880 or XR-C9100 as shown below.

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Ð 3 Ð 1 2 3 4 5 6 7 8 9 METHOD OF DETERMINING ACCEPTANCE OR REJECTION OF INTELLIGENCE BOARD (A-3317-137-A) OF XDP-4000X - No parts in the intelligence board can be repaired. If the intelligence board is defective, the whole board should be replaced. Pin numbers of 9-pin D-SUB connector (CN707) (viewed from the top of the set) Note that the voltage given in the following descriptions is relative to the ground power pin. Intelligence board check Is voltage at pin !¼ of IC707 +5V? Is voltage at pin 3 of CN707 between -�8 and -�9V ? Is the resistance between pin 1 of CN703 and ground hundreds of 100 kilohms or morePull cable out of CN703 on main board. Is voltage at pin 2 of the CN703 +5V? Intelligence board at fault Intelligence board at fault Intelligence board is normal Main board at fault Set ACC-OFF and pull cable out of CN703 on main board Main board at fault Yes YesYes Yes Is voltage at pin 9 of IC707 +5V? Is voltage at pin 2 of CN707 0V? Is voltage at pin 9 of IC707 0V? Add -�8 to -�9V to pin 2 of CN707 Yes YesYes No No No NoNo No No The fault of the main board may be caused by one of the following: 1. Shorted CN703 (OPEN). 2. Shorted pins !ª and !¢ of IC702 (OPEN). 3. Damaged port of IC702.