Sharp FO-475TH, UX-258TH manual Diagnostics and service soft switch, Diagnostic items

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UX-258TH

FO-475TH

[2] Diagnostics and service soft switch

1. Operating procedure

(1) Entering the diagnostic mode

Press FUNC → 9 → → 8 → # → 7 , and the following display will appear.

ROM Ver. FKD0 After 2 sec: DIAG MODE

FKD0

Then press the

START

key. Select the desired item with the

key or the # key or select with the rapid key. Enter the mode with the START key.

(Diag∙specifications)

FUNC

9	8	7		FKD0		DIAG MODE

			Soft switch mode				START		1

			ROM & RAM check				START		2

			Aging mode				START		3

			Panel key test				START		4

			Check pattern mode				START		5

			Signal send mode				START		6

			Memory clear mode				START		7

START

10

9 8

START Flash memory clear START Flash memory check

START	Entry data receive
	Entry data send
START	Entry data send

START	Auto feeder mode
	All black mode
START	All black mode
	Shading mode
START	Shading mode

If the diag mode cannot be set, repeat the diag mode operation, per- forming the following operation.

After the power is turned on and "ESPERE POR FAVOR" is indicated, press the STOP key.

STOP START

KEY KEY

"Power ON" +

+

Memory clear (Work + Backup)

In relation with the process response (request from Production Engineering) "ESPERE POR FAVOR" clock indication may appear depending on STOP key timing. If the STOP key is held down, "MEMORY CLEAR?" appears.

2. Diagnostic items

	ITEM	DIRECT	Contents	Function
	No.	key	Contents	Function
	No.	key

	1	1	SOFT SWITCH MODE	Soft switches are displayed and changed. List can be output.

	2	2	ROM & RAM CHECK	ROM is sum-checked, and RAM is matched. Result list is output.

	3	3	AGING MODE	10 sheets of check patterns are output every 5 minutes per sheet.

	4	4	PANEL KEY TEST	Panel keys are tested. Result list is output.

	5	5	CHECK PATTERN MODE	Check pattern is output.

	6	6	SIGNAL SEND MODE	Various signals of FAX communication are output.

	7	7	MEMORY CLEAR MODE	Back-up memory is cleared, and is set at delivery.

	8	8	SHADING MODE	Shading compensation is performed in this mode.

	9	9	ALL BLACK MODE	To check the print head, whole dots are printed over the interval of 2 m.

	10	10	AUTO FEEDER MODE	Insertion and discharge of document are tested.

	11	−	ENTRY DATA SEND	Registered content is sent.

	12	−	ENTRY DATA RECEIVE	Registered content is received, and its list is output.

	13	−	FLASH MEMORY CHECK	Flash memory is checked.

	14	−	FLASH MEMORY CLEAR	Data of flash memory is cleared.

2 – 2

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Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Connections InstallationUse of Document Carrier Sheet Site selectionLoading the fax paper Original document supportClearing jammed fax paper Clearing a jammed documentTransmitting documents Using the answering machineQuick reference guide Function key menuAdjustments Diagnostic items Diagnostics and service soft switchOperating procedure Entering the diagnostic mode Signal send mode Diagnostic items description Soft switch modeAging mode Check pattern modeFlash memory clear How to make soft switch settingEntry data receive Flash memory checkOption 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-B4 No Dial mode SW-A6 No CNG transmission in manual TX modeSW-B4 No Auto dial mode Delay timer of before line connect SW-B4 No Auto dial mode Delay timer of after line connectSW-F2 No CNG detection in STAND-BY mode SW-D1 No Automatic switching manual to auto receive modeSW-E1 No Tel/Fax Automatic switching mode SW-E1 No CNG detect time at TEL/FAX modeSW-H1 No Busy tone continuous sound detect time SW-H2 No Fax switching when A.M. fullSW-I2 No Alarm during two way recording SW-H1 No ReservedSW-K1 No Entering Diag mode by pressing Speed key SW-J1 No Sender’s phone number settingSW-J1 No , No Ringer volume SW-J2 No ~ No Speaker volume 5 stagesATT TroubleshootingG3 Reception Error code tableCommunication error code table G3 Transmission General description Recording block 5-1. General view Documents requiring use of document carrierDocument release General Cross section 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 LCD PWB Operation panelGAP Hopper Guide R Guide L Drive unit, PWB and cutter 1211Speaker and paper sensor lever Rib1811 Drive framePWB Wire treatmentTEL/LIU Cutter Block diagramTEL/LIU PWB Unit Wiring diagramPower Supply PWB Unit Control PWB UnitPoint- to-point diagram Circuit description Description of each block Main control block Circuit description of control PWBFC200 IC2 Terminal descriptions GPIO1/SASTXD 2XC Ledctl 4XCLcdcs 1XC GPIO0 2XCMechanism/recording control block Panel control blockIntroduction Modem R96V24 blockPin Signals 100-Pin Pqfp R96V24 IC1 Hardware Interface SignalsCircuit description Block diagramCircuit description of TEL/LIU PWB TEL/LIU block operational descriptionCI detection circuit Signal/DTMF transmission level & receiving levelSignal selection Externally connected TEL OFF Hook detection circuit sectionExample 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 Relay board unit Service toolsList OFF Description Relay board unitShading paper IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053B IC signal nameIC13 VHiULN2003AN/ ULN2003A IC7 VHiW24257S7LL W24257S-70LLTIC100 VHiPST596CMT1 PST596CNR IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015TiIC5 VHiHEF4051BT1 HEF4051BT IC4 VHiMC34119DR2 MC34119DR2IC1 VHiR96FC20V24 R96V24 IC1 VHiNJM2904D-1 NJM2904D IC2 VHiR96FC20V24 FC200