– 1 –XL-520W/CP-520CONTENTS PageSAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2SPECIFICATIONS ............................................................................................................................................................. 2NAMES OF PARTS ........................................................................................................................................................... 3OPERATION MANUAL ...................................................................................................................................................... 5DISASSEMBLY .................................................................................................................................................................. 7REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 8ADJUSTMENT ................................................................................................................................................................... 9BLOCK DIAGRAM ........................................................................................................................................................... 16SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20VOLTAGE ........................................................................................................................................................................ 28NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 29TYPE OF TRANSISTOR AND LED ................................................................................................................................. 29WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 30TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 31FUNCTION TABLE OF IC ................................................................................................................................................ 36REPLACEMENT PARTS LIST/EXPLODED VIEWXL-520WCP-520XL-520W and CP-520 constitute XL-520W.SERVICE MANUALSHARP CORPORATIONNo. S0780XL520W//• In the interests of user-safety the set should be restored to its originalcondition and only parts identical to those specified should be used.This document has been published to be usedfor after sales service only.The contents are subject to change without notice.