— 14 —5. CIRCUIT EXPLANATION5-1. BLOCK DIAGRAMLCD contrast/brightnessvolumeRear Display(+24V)Power Supplyfor SP-1300E590-RAMM51V18165DSL-6TKFBE590-CNB1E590-ARCCOM6Modular PlugModular PlugCPUMPW6716 :AC120VMAIN BOARDE590-E4KEY_SHEET : FPCMenu Sheet SWDallas keyOthers : OPTIONOptional Hand Held ScannerOptional MCR UNITCASIO STP cableHHS-15QT-2100RS232CCOM2QT-2160DDL-2781Optional DrawerOptional DrawerU.S.A : STANDARDOthers : OPTIONCU20029SCPB-W31AE590-E42QT-2046MCDS9092iButton ProbeQT-2100CASIO STP cableCAT.5 UTP cableCAT.5 UTP cable QT-2100QT-2100COM4DS1982-F5FROME590-VOL Optional RAM BOARD : QT-2130RAMDRAMDRAMHD6417709AF133BPS100175-002CFLLCD UNITLRUBL616XA-1QT-2100E590-E41 COM5COM1 MODEM PC DIRECTSP-1300 SA-3015UP-350 UP-250E590-1Standard SWE590-RMTCOM3BatteryBatteryOptionalPOWER SUPPLY UNITE590-CNB2DL-2780DL-2916DL-3618DL-3619Note : Do not connect REAR DISPLAY and REMOTE DISPLAY at the same time.VL3032/SGADL-2917POWER CORDRS232CGermany : STANDARDiButtonM51V18165DSL-6TKFBRS232CRS232CRS232CMBM29DL324BE90TN-APS204-A : U.S.A., Canada, etcOPTIONAL REMOTE CUSTOMER DISPLAY SYSTEMRS232CMP5004 : Great BritinM3203 : AustlariaM2511 : Europe, etcQT-2163DMPW6616 :ëAC220 240VCU20029SCPB-W31AOptional Printer UNITOptional UNITPower supply for CFL