Sharp FO-475TH, UX-258TH manual Facsimile

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UX-258TH

FO-475TH

SERVICE MANUAL

No. 00ZUX258THSME

FACSIMILE

UX-258

MODEL FO-475

CONTENTS

	CHAPTER 1. GENERAL DESCRIPTION			CHAPTER 5. CIRCUIT DESCRIPTION
	[1]	Specifications	1-1	[1]	Circuit description	5-1
	[2]	Operation panel	1-2	[2]	Circuit description of control PWB	5-2
	[3]	Transmittable documents	1-3	[3]	Circuit description of TEL/LIU PWB	5-8
	[4]	Installation	1-4	[4]	Circuit description of
	[5]	Quick reference guide	1-7		power supply PWB	5-11
	CHAPTER 2. ADJUSTMENTS			[5]	Circuit description of CIS unit	5-11
	CHAPTER 2. ADJUSTMENTS
	[1] Adjustments		2-1	CHAPTER 6. CIRCUIT SCHEMATICS AND
	[2]	Diagnostics and service soft switch	2-2	PARTS LAYOUT
	[3]	Troubleshooting	2-17	[1]	Control PWB circuit	6-1
	[4]	Error code table	2-18	[2]	TEL/LIU PWB circuit	6-9
	CHAPTER 3. MECHANISM BLOCKS			[3]	Power supply PWB circuit	6-11
	CHAPTER 3. MECHANISM BLOCKS			[4]	Operation panel PWB circuit	6-13
	[1]	General description	3-1	[4]	Operation panel PWB circuit	6-13
	[1]	General description	3-1
	[2]	Disassembly and assembly		CHAPTER 7. OPERATION FLOWCHART
		procedures	3-3	[1]	Protocol	7-1
	CHAPTER 4. DIAGRAMS			[2] Power on sequence		7-2
	CHAPTER 4. DIAGRAMS
	[1]	Block diagram	4-1	CHAPTER 8. OTHERS
	[2]	Wiring diagram	4-2	[1] Service tools		8-1
	[3]	Point-to-point diagram	4-3	[2]	IC signal name	8-4
				PARTS GUIDE

Parts marked with "" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

This document has been published to be used

SHARP CORPORATION for after sales service only.

The contents are subject to change without notice.

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Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Use of Document Carrier Sheet InstallationSite selection ConnectionsLoading the fax paper Original document supportClearing jammed fax paper Clearing a jammed documentQuick reference guide Using the answering machineFunction key menu Transmitting documentsAdjustments Operating procedure Entering the diagnostic mode Diagnostics and service soft switchDiagnostic items Aging mode Diagnostic items description Soft switch modeCheck pattern mode Signal send modeEntry data receive How to make soft switch settingFlash memory check Flash memory clearData Soft switch descriptionOption 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-B4 No Auto dial mode Delay timer of before line connect SW-A6 No CNG transmission in manual TX modeSW-B4 No Auto dial mode Delay timer of after line connect SW-B4 No Dial modeSW-E1 No Tel/Fax Automatic switching mode SW-D1 No Automatic switching manual to auto receive modeSW-E1 No CNG detect time at TEL/FAX mode SW-F2 No CNG detection in STAND-BY modeSW-I2 No Alarm during two way recording SW-H2 No Fax switching when A.M. fullSW-H1 No Reserved SW-H1 No Busy tone continuous sound detect timeSW-J1 No , No Ringer volume SW-J1 No Sender’s phone number settingSW-J2 No ~ No Speaker volume 5 stages SW-K1 No Entering Diag mode by pressing Speed keyATT TroubleshootingCommunication error code table G3 Transmission Error code tableG3 Reception General description Document release General Documents requiring use of document carrierCross section view Recording block 5-1. General viewHandset cover and paper support guide Disassembly and assembly proceduresPWB case top, bottom and PWB Operation panel unit and scanner frame Screwdriver Hook CIS support 11 ,13 Stopper plateDocument guide upper unit and head frame Document guide upper GAP Hopper Guide R Guide L Operation panelLCD PWB Drive unit, PWB and cutter 1211Speaker and paper sensor lever Rib1811 Drive frameTEL/LIU Wire treatmentPWB Cutter Block diagramPower Supply PWB Unit Wiring diagramControl PWB Unit TEL/LIU PWB UnitPoint- to-point diagram Circuit description Description of each block Main control block Circuit description of control PWBFC200 IC2 Terminal descriptions Lcdcs 1XC Ledctl 4XCGPIO0 2XC GPIO1/SASTXD 2XCMechanism/recording control block Panel control blockIntroduction Modem R96V24 blockPin Signals 100-Pin Pqfp R96V24 IC1 Hardware Interface SignalsCircuit description of TEL/LIU PWB Block diagramTEL/LIU block operational description Circuit descriptionSignal selection Signal/DTMF transmission level & receiving levelExternally connected TEL OFF Hook detection circuit section CI detection circuitExample TEL speaking Circuit description of CIS unit Circuit description of power supply PWBControlPWB Circuit Block44PIN Tsop Memory blockIC3 Modem2902 Other blockULN2003A Video processing/Motor drive / Thermal blockIC5 Analog signal blockControl PWB parts layout Top side Control PWB parts layout Bottom side TEL/LIU PWB circuit These marks are all safety-critical partsTEL/LIU PWB parts layout NJM78M05FA Power supply PWB circuitPower supply PWB parts layout IC101 74HC147 Operation panel PWB circuitProtocol Operation FlowchartPower on sequence List Service toolsRelay board unit OFF Description Relay board unitShading paper IC13 VHiULN2003AN/ ULN2003A IC signal nameIC7 VHiW24257S7LL W24257S-70LLT IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053BIC5 VHiHEF4051BT1 HEF4051BT IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015TiIC4 VHiMC34119DR2 MC34119DR2 IC100 VHiPST596CMT1 PST596CNRIC1 VHiR96FC20V24 R96V24 IC1 VHiNJM2904D-1 NJM2904D IC2 VHiR96FC20V24 FC200