Sharp UX-258TH, FO-475TH manual Power on sequence

Page 68

[2] Power on sequence

UX-258TH FO-475TH

“MEMORY CLEAR ?” display

1	YES	START key ?

START

CPU initialized

MODEM initialized

“WAIT A MOMENT” display

STOP key ?
NO
3 sec ?	NO
3 sec ?
YES
STAND-BY

		NO
2	YES	COPY key ?
2		COPY key ?

YES

NO

STOP key ?

NO

1

“MEMORY CLEARED” display

2

“MEMORY CLEARED” display

3 sec ?

NO

Memory clear

Memory clear

YES STAND-BY

STAND-BY

PROCESS CHECK MODE

7 – 2

Image 68

Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Installation Use of Document Carrier SheetSite selection ConnectionsOriginal document support Loading the fax paperClearing a jammed document Clearing jammed fax paperUsing the answering machine Quick reference guideFunction key menu Transmitting documentsAdjustments Diagnostic items Diagnostics and service soft switchOperating procedure Entering the diagnostic mode Diagnostic items description Soft switch mode Aging modeCheck pattern mode Signal send modeHow to make soft switch setting Entry data receiveFlash memory check Flash memory clearOption Soft switch descriptionData No. = X 60 sec = 5 min Recall times Binary input Light Dark Darker TEL 0~9 No. = CNG detection in STAND-BY mode Yes Fax switching when A.M. full Yes 10 ~ 25 dBm No. = 12 dB AGC eref access code line Reserved Speaker volume 5 stages Soft switch function description SW-A6 No CNG transmission in manual TX mode SW-B4 No Auto dial mode Delay timer of before line connectSW-B4 No Auto dial mode Delay timer of after line connect SW-B4 No Dial modeSW-D1 No Automatic switching manual to auto receive mode SW-E1 No Tel/Fax Automatic switching modeSW-E1 No CNG detect time at TEL/FAX mode SW-F2 No CNG detection in STAND-BY modeSW-H2 No Fax switching when A.M. full SW-I2 No Alarm during two way recordingSW-H1 No Reserved SW-H1 No Busy tone continuous sound detect timeSW-J1 No Sender’s phone number setting SW-J1 No , No Ringer volumeSW-J2 No ~ No Speaker volume 5 stages SW-K1 No Entering Diag mode by pressing Speed keyTroubleshooting ATTG3 Reception Error code tableCommunication error code table G3 Transmission General description Documents requiring use of document carrier Document release GeneralCross section view Recording block 5-1. General viewDisassembly and assembly procedures Handset cover and paper support guidePWB case top, bottom and PWB Screwdriver Hook CIS support 11 ,13 Stopper plate Operation panel unit and scanner frameDocument guide upper unit and head frame Document guide upper LCD PWB Operation panelGAP Hopper Guide R Guide L 1211 Drive unit, PWB and cutterRib Speaker and paper sensor leverDrive frame 1811PWB Wire treatmentTEL/LIU Block diagram CutterWiring diagram Power Supply PWB UnitControl PWB Unit TEL/LIU PWB UnitPoint- to-point diagram Circuit description Circuit description of control PWB Description of each block Main control blockFC200 IC2 Terminal descriptions Ledctl 4XC Lcdcs 1XCGPIO0 2XC GPIO1/SASTXD 2XCPanel control block Mechanism/recording control blockModem R96V24 block IntroductionR96V24 IC1 Hardware Interface Signals Pin Signals 100-Pin PqfpBlock diagram Circuit description of TEL/LIU PWBTEL/LIU block operational description Circuit descriptionSignal/DTMF transmission level & receiving level Signal selectionExternally connected TEL OFF Hook detection circuit section CI detection circuitExample TEL speaking Circuit description of power supply PWB Circuit description of CIS unitCircuit Block ControlPWBMemory block 44PIN TsopModem IC3Other block 2902Video processing/Motor drive / Thermal block ULN2003AAnalog signal block IC5Control PWB parts layout Top side Control PWB parts layout Bottom side These marks are all safety-critical parts TEL/LIU PWB circuitTEL/LIU PWB parts layout Power supply PWB circuit NJM78M05FAPower supply PWB parts layout Operation panel PWB circuit IC101 74HC147Operation Flowchart ProtocolPower on sequence Relay board unit Service toolsList Description Relay board unit OFFShading paper IC signal name IC13 VHiULN2003AN/ ULN2003AIC7 VHiW24257S7LL W24257S-70LLT IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053BIC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015Ti IC5 VHiHEF4051BT1 HEF4051BTIC4 VHiMC34119DR2 MC34119DR2 IC100 VHiPST596CMT1 PST596CNRIC1 VHiR96FC20V24 R96V24 IC2 VHiR96FC20V24 FC200 IC1 VHiNJM2904D-1 NJM2904D