Example TEL speaking | Sharp UX-258TH, FO-475TH specification

[Signals for status recognition according to input signals]

	Signal Name					Function


						H: The handset is in the on-hook state.
		RHS				H: The handset is in the on-hook state.
		RHS				L: The handset is in the off-hook state.
						L: The handset is in the off-hook state.

			CI			Incoming call (CI) detection signal

						H: The handset or external telephone is in the
						on-hook state.
			HS			on-hook state.
			HS			L: The handset or external telephone is in the
						L: The handset or external telephone is in the
						off-hook state.

	[Other signals]

	Signal Name					Function

	TEL IN					Receiving signal from line or modem

	TEL OUT					Transfer signal to line

	SPOUT					Speaker output signal

	TXOUT					Transmission (DTMF) analog signal output
	TXOUT					from modem
						from modem

		RXIN				Reception (DTMF, others) analog signal input
		RXIN				into modem
						into modem

			UX-258TH
			FO-

NO	Signal Name (CNLIU)	NO	Signal Name (CNLIU)

1	TELOUT	7	RXIN

2	TELIN	8	TXOUT

3	TELMUTE	9	CML

4	CI	10	+24VA

5	HS	11	+5V

6	RHS	12	DG

(Example: TEL speaking)

TEL/LIU PWB				CONTROL PWB

HS

CML

GAIN-C

TXCONT

TEL LINE		H	TXOUT		SIGTX
TEL LINE	HS DETECTOR	L
	HS DETECTOR	L	1
			1		MODEM
					MODEM
EXT			0	4053	(R96V24)
			0	1
		CI DETECTOR	0	1
		CI DETECTOR	0
			RXIN	0	SIGRX
			1		SIGRX
			1	0
HANDSET			1
HANDSET			0
			0
			TELIN
			TELOUT
			VOL A
			VOL B
			VOL C
			BZCONT
HOOK SW			SP AMP
			SP AMP
			0
			1
					TXCONT
			4051		RXCONT
		SPEAKER			RXCONT
		SPEAKER

						MONITOR
						BZCONT


						FC200
						RCVOL
						SP MUTE
	TEL MUTE					TEL MUTE
	TEL MUTE					TEL MUTE
	CI					CI
	CI					CI

		RHS

GAIN-C

CML

HS

TX/RX SIGNAL

+5V

OGM/ICM/MEMO/PLAYBACK SIGNAL	+24
OGM/MEMO/RECORD SIGNAL	DG
	DG

Fig. 6

5 – 10

Image 52

Sharp UX-258TH, FO-475TH manual Example TEL speaking

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 Connections Original document support Loading the fax paper Clearing a jammed document Clearing jammed fax paper Using the answering machine Quick reference guideFunction key menu Transmitting documents Adjustments Operating procedure Entering the diagnostic mode Diagnostics and service soft switchDiagnostic items Diagnostic items description Soft switch mode Aging modeCheck pattern mode Signal send mode How to make soft switch setting Entry data receiveFlash memory check Flash memory clear Data 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-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 mode SW-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 mode SW-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 time SW-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 key Troubleshooting ATT Communication error code table G3 Transmission Error code tableG3 Reception General description Documents requiring use of document carrier Document release GeneralCross section view Recording block 5-1. General view Disassembly and assembly procedures Handset cover and paper support guide PWB case top, bottom and PWB Screwdriver Hook CIS support 11 ,13 Stopper plate Operation panel unit and scanner frame Document guide upper unit and head frame Document guide upper GAP Hopper Guide R Guide L Operation panelLCD PWB 1211 Drive unit, PWB and cutter Rib Speaker and paper sensor lever Drive frame 1811 TEL/LIU Wire treatmentPWB Block diagram Cutter Wiring diagram Power Supply PWB UnitControl PWB Unit TEL/LIU PWB Unit Point- to-point diagram Circuit description Circuit description of control PWB Description of each block Main control block FC200 IC2 Terminal descriptions Ledctl 4XC Lcdcs 1XCGPIO0 2XC GPIO1/SASTXD 2XC Panel control block Mechanism/recording control block Modem R96V24 block Introduction R96V24 IC1 Hardware Interface Signals Pin Signals 100-Pin Pqfp Block diagram Circuit description of TEL/LIU PWBTEL/LIU block operational description Circuit description Signal/DTMF transmission level & receiving level Signal selectionExternally connected TEL OFF Hook detection circuit section CI detection circuit Example TEL speaking Circuit description of power supply PWB Circuit description of CIS unit Circuit Block ControlPWB Memory block 44PIN Tsop Modem IC3 Other block 2902 Video processing/Motor drive / Thermal block ULN2003A Analog signal block IC5 Control PWB parts layout Top side Control PWB parts layout Bottom side These marks are all safety-critical parts TEL/LIU PWB circuit TEL/LIU PWB parts layout Power supply PWB circuit NJM78M05FA Power supply PWB parts layout Operation panel PWB circuit IC101 74HC147 Operation Flowchart Protocol Power on sequence List Service toolsRelay board unit Description Relay board unit OFF Shading paper IC signal name IC13 VHiULN2003AN/ ULN2003AIC7 VHiW24257S7LL W24257S-70LLT IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053B IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015Ti IC5 VHiHEF4051BT1 HEF4051BTIC4 VHiMC34119DR2 MC34119DR2 IC100 VHiPST596CMT1 PST596CNR IC1 VHiR96FC20V24 R96V24 IC2 VHiR96FC20V24 FC200 IC1 VHiNJM2904D-1 NJM2904D