– 1 –CD-BP1450VNo. S7058CDBP145VCONTENTSPageSAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2VOLTAGE SELECTION ..................................................................................................................................................... 2SPECIFICATIONS ............................................................................................................................................................. 3NAMES OF PARTS ........................................................................................................................................................... 4OPERATION MANUAL ...................................................................................................................................................... 6DISASSEMBLY .................................................................................................................................................................. 8BLOCK DIAGRAM ........................................................................................................................................................... 11SCHEMATIC DIAGRAM .................................................................................................................................................. 14WIRING SIDE OF P.W.BOARD ....................................................................................................................................... 25NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 32TYPES OF TRANSISTOR AND LED ................................................................................................................................ 32WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 33VOLTAGE ........................................................................................................................................................................ 34REPLACEMENT PARTS LIST/EXPLODED VIEW• In the interests of user-safety the set should be restored to itsoriginal condition and only parts identical to those specified beused.SERVICE MANUALThis document has been published to be usedfor after sales service only.The contents are subject to change without notice.CD-BP1450V Video CD Mini System consisting ofCD-BP1450V (main unit), CP-BK1450 (front speakers)and GBOXS0043AWM1 (surround speakers).SHARP CORPORATIONMODEL CD-BP1450VVIDEO CD MINI SYSTEMNTSC/PALThis Service Manual is for the CD-BP1450V, which is a minor-modification model of the CD-BP1300V. This manual, therefore,describes only the changed points from the service manual. Pleaserefer to the CD-BP1300V service manual (No.S7057CDBP130V)together with this manual.CD-BP1300VPageREMOVING AND REINSTALLING THE MAIN PARTS .. 11ADJUSTMENT ................................................................ 12TROUBLESHOOTING (CD SECTION) .......................... 38FUNCTION TABLE OF IC .............................................. 42FL DISPLAY .................................................................... 53