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NAD C 542 service manual Main Board

Models: C 542

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Contents

C O M PA C T C 542 COMPACT DISC PLAYERDISC PLAYER CLASS LASER PRODUCT SAFETY INFORMATIONCONTENTS SERVICE SAFETY PRECAUTIONS2.Safety check out 1.Replacing the fusesPHYSICAL SPECIFICATIONS SPECIFICATIONSCONTROLS REAR PANEL REAR PANEL / FRONT PANELFRONT PANEL Refer to Figure No.1 DISASSEMBLY INSTRUCTIONSFigure No.2 KEYBOARD BLOCK DIAGRAMCD MECHANISM UNIT TRANSFORMER WIRING DIAGRAMMAIN BOARD CD MECHANISMFIG. 1 a RF PATTERN TESTINGFIG. 1 C Good eye pattern FIG. 1 b Poor eye patternIMPORTANT NOTES PRECAUTIONS FOR CHECKING BEAM EMISSIONINCORRECT CORRECTPRECAUTIONS WHEN CHANGING LASER PICK-UP DISPLAY BOARD KEY BOARD LIVE BOARD LED BOARD PCB LAYOUTMAIN BOARD SCHEMATIC DIAGRAM RESISTORS, ARE CARBON FILM 5% 1/8W DISPLAYUNLESS OTHERWISE SPECIFIED 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS RF AMPOTHERWISE SPECIFIED 2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESSOTHERWISE SPECIFIED 1. RESISTORS, ARE CARBON FILM 5% 1/8W UNLESS2. CERAMIC CAPACITORS, ARE 50V 10%. UNLESS OTHERWISE SPECIFIEDP OWE R MAIN BOARD U101 CXA2581N IC BLOCK DIAGRAMU202 BA6392FP U403 TC74HC00APMAIN BOARD U201 CXD3017Q MAIN BOARD U301 M38B57MCI/O ports Build-inperipheral functionsMAIN BOARD U402 NADLINK MASKED U302 PCM1732MAIN BOARD U501, U506, U507 MAIN BOARDTROUBLESHOOTING GUIDE Reference No ELECTRICAL PARTS LISTDescription WIRESWITCH WIREReference No DescriptionReference No WAFER/CONNECTORDescription COILDescription Reference NoJACK CRYSTALDescription Reference NoDIODE WIRE SWITCHReference No DescriptionWSL-2130CCM MECHANISM EXPLODED VIEWDescription MECHANISM EXPLODED VIEW PARTS LISTM500 EXPLODED VIEWDescription EXPLODED VIEW PARTS LIST0211 DescriptionQ’TY PACKING DIAGRAMDESCRIPTION COMPACT DISC PLAYER NAD ELECTRONICS INTERNATIONALTORONTO