Sharp UX-258TH, FO-475TH manual Description Relay board unit, Off

Page 70

UX-258TH

FO-475TH

2. Description

2-1. Relay board unit

1.Remove the TEL/LIU PWB, control PWB and Power Supply PWB from this unit, and mount the relay board unit instead.

•Before connecting the wiring to the relay board unit, set the test PWB switches to the fixed position.

2.The setting is as follows.

	∙ The relay cables are used as one pair.
Relay	∙ The sensor is wired as shown in the following figure.
cable	∙ The door swich and hook switch are manually operated.

12

CNLIUA

1

CNPW

CHECK CONTROL PWB

CNLIU

TEL/LIU PWB

POWER SUPPLY PWB

The recording paper sensor (PSNS) is operated by OR of the mechani- cal unit switch and the test PWB switch. When performing installation in the machine unit, set the test PWB switches to the fixed position.

	Mechanical unit	PWB to be tested
	Actual operation with mechanical unit
Recording paper	ON/OFF operation	OFF (Photo interrupter
sensor		is interrupted.)
	PWB sensor check
Recording paper	OFF	ON/OFF operation
sensor

CHECK

TEL/LIU

NOTE

DON'T SEPARATE

UNIT

RELAY CABLE

EXTENSION PWB

CONTROL

PWB

DOOR

SENSOR

PWB

TP2(+5V)

TP1(DG)

TP3

(PSNS)

POWER SUPPLY PWB

C K

TP3

(PSNS)

E A

These cables are connected from the extension board and the checked control PWB at TP1 thru TP3 (signals of DG, +5V and PSNS).

8 – 2

Image 70

Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Site selection InstallationUse of Document Carrier Sheet ConnectionsOriginal document support Loading the fax paperClearing a jammed document Clearing jammed fax paperFunction key menu Using the answering machineQuick reference guide Transmitting documentsAdjustments Operating procedure Entering the diagnostic mode Diagnostics and service soft switchDiagnostic items Check pattern mode Diagnostic items description Soft switch modeAging mode Signal send modeFlash memory check How to make soft switch settingEntry data receive 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 after line connect SW-A6 No CNG transmission in manual TX modeSW-B4 No Auto dial mode Delay timer of before line connect SW-B4 No Dial modeSW-E1 No CNG detect time at TEL/FAX mode SW-D1 No Automatic switching manual to auto receive modeSW-E1 No Tel/Fax Automatic switching mode SW-F2 No CNG detection in STAND-BY modeSW-H1 No Reserved SW-H2 No Fax switching when A.M. fullSW-I2 No Alarm during two way recording SW-H1 No Busy tone continuous sound detect timeSW-J2 No ~ No Speaker volume 5 stages SW-J1 No Sender’s phone number settingSW-J1 No , No Ringer volume SW-K1 No Entering Diag mode by pressing Speed keyTroubleshooting ATTCommunication error code table G3 Transmission Error code tableG3 Reception General description Cross section view Documents requiring use of document carrierDocument release General 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 GAP Hopper Guide R Guide L Operation panelLCD PWB 1211 Drive unit, PWB and cutterRib Speaker and paper sensor leverDrive frame 1811TEL/LIU Wire treatmentPWB Block diagram CutterControl PWB Unit Wiring diagramPower Supply 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 GPIO0 2XC Ledctl 4XCLcdcs 1XC GPIO1/SASTXD 2XCPanel control block Mechanism/recording control blockModem R96V24 block IntroductionR96V24 IC1 Hardware Interface Signals Pin Signals 100-Pin PqfpTEL/LIU block operational description Block diagramCircuit description of TEL/LIU PWB Circuit descriptionExternally connected TEL OFF Hook detection circuit section Signal/DTMF transmission level & receiving levelSignal selection 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 List Service toolsRelay board unit Description Relay board unit OFFShading paper IC7 VHiW24257S7LL W24257S-70LLT IC signal nameIC13 VHiULN2003AN/ ULN2003A IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053BIC4 VHiMC34119DR2 MC34119DR2 IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015TiIC5 VHiHEF4051BT1 HEF4051BT IC100 VHiPST596CMT1 PST596CNRIC1 VHiR96FC20V24 R96V24 IC2 VHiR96FC20V24 FC200 IC1 VHiNJM2904D-1 NJM2904D