BBK BX900U Service Manual Download Page 1 | Manualshive

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BBK BX900U Service Manual Download Page 1

Model: BX900U

CONTENTS

PAGE

Specifications ……………………………………………………………………………………………………... 1-6

Block Diagram ................................................................................................................................................ 7

Safety Checks ............................................................................................................................................. 8-9

Wiring Diagrams……………………………………………………………………………………………………….10

Schematic Diagrams……………………………………………………………………………………...……....11-12

Printed Circuit Boards………………………………………………..………………………..…………..….… 13-14

Exploded View .............................................................................................................................................. 15

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Summary of Contents for BX900U

Page 1: ...Model BX900U CONTENTS PAGE Specifications 1 6 Block Diagram 7 Safety Checks 8 9 Wiring Diagrams 10 Schematic Diagrams 11 12 Printed Circuit Boards 13 14 Exploded View 15...

Page 2: ...ion at Max Volume 22 5KHz Dev Distortion at Max Volume 75KHz Dev 90MHz 10 90MHz 25 6dBAudio Fidelity Low Freq Hz 100 150 High Freq KHz 4 5 3 8 3dB Limiting Sensitivity 90MHz dB 30 35 Distortion at Ref...

Page 3: ...CD 1at Speaker Output 100Hz dB 1KHz dB 45 40 10KHz dB S N Ratio Input Filter Dynamic Range Initial Reading Time TCD 782 dB 45 TCD 782 Sec TCD 782 Sec 10 Access Time TCD 782 First Track Sec 8 Last Trac...

Page 4: ...ROCK 20Hz dB 100Hz dB 1K dB 10K dB 20K dB CLAS 20Hz dB 100Hz dB 1K dB 10K dB 20K dB POP 20Hz dB 100Hz dB 1K dB 10K dB 20K dB JAZZ 20Hz dB 100Hz dB 1K dB 10K dB 20K dB FLAT 20Hz dB 100Hz dB 1K dB 10K...

Page 5: ...2 3 Max Power O P at Headphone 90MHz MW FM 75KHz Dev 1KHz CD OdB 1KHz AUX IN 500mV 1KHz BLUETOTH 784 OdB 1KHz dB 3 90KHz dB 3 784 OdB 1KHz dB 3 0 OdB 1KHz dB 3 0 784 OdB 1KHz dB Bass Boost 100Hz dB 12...

Page 6: ...ormal Limit Test Data 1 2 3 10 T H D Power O P 500MV Input W 8 7 8 Stereo Separation 180MV Input dB 38 35 Min Hum 180MV Input mV 0 7 2 Max Hum mV S N dB 55 50 Total Harmonic Distortion 0 5 1 Test Cond...

Page 7: ...nse Speaker Output CD 1 1Khz at Reference Output OdB 63Hz dB 100Hz dB 6 3 1KHz dB 10KHz dB 6 3 20KHz dB THD at Standard Output at 10dB 1KHz 1 Separation CD 1at Speaker Output 100Hz dB 1KHz dB 45 40 10...

Page 8: ...BLOCK DIAGRAM 7...

Page 9: ...AC scale and repeat the test 6 Any reading greater than 0 2 volt indicates a potential shock hazard If this occurs determine the cause of the leakage correct the problem and repeat the safety test ALI...

Page 10: ...5 ms 4 Test Mode Play Sony CD Type 3 Track 1 Press FF Fast Forward Until A B as Figure Bellow SCOPE DC POSITION A B Figure A B FOCUS BIAS ADJUSTMENT 1 Test Point VC RFO 2 Test Disc Sony Test CD Type 3...

Page 11: ...WIRING DRAWING 10...

Page 12: ...SCHEMATIC DIAGRAMS 11...

Page 13: ...SCHEMATIC DIAGRAMS 12...

Page 14: ...SCHEMATIC DIAGRAMS 13...

Page 15: ...PRINTED CIRCUIT BOARDS 14...

Page 16: ...PRINTED CIRCUIT BOARDS 15...

Page 17: ...16...

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