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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 BBK BX900U
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Page 1: Table Of Contents
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 SPECIFICATIONS 永 福 电 子 有 限 公 司 YUNG FU ELECTRONICS LTD Model No CD003 Date:2013-1-17 Section: FM TUNER Page: 1 of 6 Measuring Items Condition Unit Normal Limit Test Data Tuning Frequency Range Low End +/-0.5 High End +/-0.5 Intermediate Frequency 10.7...
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Page 3: Specifications
SPECIFICATIONS 永 福 电 子 有 限 公 司 YUNG FU ELECTRONICS LTD Model NO: CD003 Date: 2013-1-17 Section: CD Page: 2 of 6 Measuring Items Condition Unit Norm Limit Test Data Distortion at Max Vol CD-1(0dB) 1KHz CD10% THD Output Power CD-1(OdB) 1KHz CD Output Level Voltage(Max) 1KHz... - Page 4 SPECIFICATIONS 永 福 电 子 有 限 公 司 YUNG FU ELECTRONICS LTD Model NO: CD003 Date: 2013-1-17 Section:EQ Page: 3 of 6 Measuring Items Condition Unit Norm Limit Test Data ROCK 20Hz 100Hz CLAS 20Hz 100Hz 20Hz 100Hz JAZZ 20Hz 100Hz FLAT...
- Page 5 SPECIFICATIONS YUNG FU ELECTRONICS LTD Model NO: CD003 Date: 2013-1-17 Section: Audio Page: 4 of 6 Measuring Items Condition Unit Normal Limit Test Data Max Power O/P at Headphone 90MHz +/-3 FM 75KHz Dev 1KHz 90KHz +/-3 CD OdB 1KHz 784 OdB 1KHz +3/-0 AUX IN 500mV 1KHz...
- Page 6 SPECIFICATIONS 永 福 电 子 有 限 公 司 YUNG FU ELECTRONICS LTD Model NO: CD003 Date: 2013-1-17 Section: AUX SECTION Page: 5 of 6 Measuring Items Condition Unit Normal Limit Test Data 500MV(Input) 10%T.H.D Power O/P 180MV(Input) Stereo Separation Min Hum 180MV(Input) Max Hum...
- Page 7 永 福 电 子 有 限 公 司 SPECIFICATIONS YUNG FU ELECTRONICS LTD Model NO: CD003 Date:2013-1-17 Section: BLUETOOTH Page:6of 6 Measuring Items Condition Unit Norm Limit Test Data Distortion at Max Vol 784(0dB) 1KHz CD10% THD Output Power 784(OdB) 1KHz CD Output Level Voltage 1KHz...
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Page 8: Block Diagram
BLOCK DIAGRAM... -
Page 9: Safety Checks
SAFETY CHECKS Important Note!!! Do the following safety checks after servicing this unit. 1. Remove all the externally connected test equipment and wires before testing the unit. 2. Use the safety test circuit as shown below. 3. Plug the power cord or unit to be tested into the test receptacle. 4. - Page 10 CD PLAYER CHECKING PROCEDURES A. WAVE E/F BALANCE ADJUSTMENT 1) Test Point : VC, TS10. 2) Test Disc : Sony Test CD Type 3. 3) Test Equipment : Scope : DC 0.2 V 0.5 ms. 4) Test Mode : Play Sony CD, Type 3, Track 1, Press FF. (Fast Forward), Until A=B (as Figure Bellow).
- Page 11 WIRING DRAWING...
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Page 12: Schematic Diagrams
SCHEMATIC DIAGRAMS... - Page 13 SCHEMATIC DIAGRAMS...
- Page 14 SCHEMATIC DIAGRAMS...
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Page 15: Printed Circuit Boards
PRINTED CIRCUIT BOARDS... - Page 16 PRINTED CIRCUIT BOARDS...