Board Descriptions A - 11 OF 5300/5600 Serv Man, P/N 59278301LEDLCDDRV.LCDCKey switchmatrixOPE. CPUOPEHandsetTEL(option)NCUNCUL1, L2T1, T2: A circuit which conducted by sub-power supply unitat the time of a standby state.RiSUB +5VPC1AMPSpeakerX' talMODEM14.4 kbpsIOGA3 1/2:Peripheralcontrol1284 controlCS generationI/O portDMA 2chCTR (PC IF)SUB +5VX' tal20 MHzMask ROM512 KB(x16)FLASH512 KB(x16)CPUSH7034RTCX' talBATMEM (option)DRAM (1 MB/2 MB)IEXSEED300AMPDRV.DRV.DRV.PC1IOGA3 2/2:Printer controlOST-EXBuffer 640 bytesDecoding (RLE,TIFF, ACC32)200-300/300-200 Conv.High-voltage controlSmoothingA4 imagesensor8 dots/mm(OEL)300 dpi(ODA)PC1 PC2MMS-motorD-motorLED head300 dpiFanHeaterThernistorHigh/MidVoltageControlMainSwitchingPoewr SupplySub-PowerSupplySWMain Power Supply UnitAC (120/240V)Inlet sensor 1Inlet sensor 2Paper end sensorWrite sensorOutlet sensorToner end sensorCover open switchSUB +5V0VP0VL+5V+30VSUB+5V-8V±8VACONHookSRAM256 KBA/DDRAM512 KB (x8) x2DRAM512 KB(x16) x12nd Trayoption±5VSWX' talMODEM28.8 kbps(V.34)MODEM*12 MB for ODA version1 MB for INT'L version*1512 KB (x8) x3/512 KB (x8) x5BATM R-motorSWSIGCN10CN7CN5CN2CN11CN4CN3CN1CN3CN16CN3CN14 CN8 CN15OKIFAX 5500/5600CN6SRCN3CN1CN9CN12/17CN13IC24 IC6 SDT2 to SDT7IC28RAM1IC2IC21IC9IC22IC3X2 32.768kHzX1 IC2IC10IC5MASKFLSIC8IC29X3Address/data/control bus etc.,SUB-POW1VP(120V)/2VP(230V)HDDT0-P etc.,O5WM17/M17-2/M17-3/M17-4DriverReceiver1284-I/FCN1CN229.4912MHzG3 Send Picture Signal (Figure A2.2.2)Note:The Sub-Power Supply will be removed from future revisions of the product.