Sanyo MCD-Z250F Service Manual

Also see for MCD-Z250F: Service manual Service manual Instruction manual Service manual

Contents

IC BLOCK DIAGRAM & DESCRIPTIONICI 02 LC78822ED (Digital Signal Processor)No. 1 Pin Name 1 f/O] Function1 1 DEFI 1 I Ilnputterminal for detect signal of defect2 TAI I Input terminal for test.3 PDO 0 The phase comparison output terminal forexternal VC0 control.12 1 CLV+ 0 IOutput terminal for Disc motor control.13 I C L V- I o IOutput terminal for Disc motor control.C2F 1 o loutput terminal of ~2 flag31 I DOUT I o loutput terminal of digital outNo. 1 Pin Name I f/O IZ? 1 TEST3 1 I ITest pin.Function,39 I R V S S I - l~~~for R - c h40 I RCHO I 0 loutput terminal for R-ch41 1 RVDD 1 - IPowersupplyfor R-ch42 I MUTER I o IMuteoutput teninalfor Rch43 1 XVDD I - IPower supply of crystal oscillation44 I XOUT I o IConnection terminal of crystal oscillation (16.9344MHz)46 I XIN 1 I lConnection teninal of crystal oscillation (16.9344MHz) 146 I xvss I - IGND of crystal oscillation47 I SSSY I 0 /Output terminal for synchronizing signal ofsubcord bkxk46 EFLG 0 Output terminal for correction monitor of Cl, C2,Sinole and DoubleCOIN I I llnput terminal of command from micro processor67 I CQCK I I [Ckrck input for reading sub-cord from SCOUT56 RES I Reset (turn on : L)69 TSTI 1 0 Test pin60 16M 0 169344MHz61 4.2M 0 4.2336MHzCl 12 Error D&cl 8Conecl Control FlagDOUT