RLY3, IC3, IC5 | Toshiba GD-1260, GD-1160, GD-1201, GD-1151 manual

EU/AU/AS/C models
	NCU board
					Line current
					detection															FAX board
					circuit
								Q4											3	3	CML1	21	IC29
				+12V	RLY3			Q4											6	6	ATT3DB1	22	IC29
					RLY3																		[IC26]
																							[IC26]
					CML relay							IC5							7	7	RLADJ11	24	ASIC
				1		12		AG				IC5							8	8	RLADJ21	25	ASIC
				1		12		AG											8	8	RLADJ21	25
							C7		R28			Analog switch
					1	5	C7	T1			13	0
			R26
	4	Lb		4

					0	3
					0	3				R29	14	1
										R29					IC6
															IC6
Line							RLY4			C13		3		1	2
Line					1	8	RLY4			C13	15	2
	3	La		9	1	8					15	2								CN501
	3	La		9	0	10													CN4
CN3					0	10	Relay		R31	R36	16	3
											16	3

	2	a2				2	3		AG
External						+12V				C12		11 10			IC3	11
																11
																10
telephone						4	1									10
						4	1		R32	R30				Analog
	5	b2							R32	R30				Analog
	5	b2												switch
														switch
										C14		R11	1	1					1	1	TXOUT1	28,29
													1	1		15			1	1	TXOUT1	28,29
													2	0		15							IC12
											IC6		2	0									[IC9]
											IC6												[IC9]
											5	7	13	1				IC4
													13	1		14		IC4	2	2	RXIN1	32	MODEM
																	6	7					MODEM
														0			6	7
													12	0
											IC7	1
										4		1
									Q9	4		2
									Q9			2
							Ring signal
							detection		AG
							circuit		AG
							circuit
										Fig. 4-8

The line path switching control circuit consists of the CML relay (RLY3) and analog switch (IC3, IC5) on the NCU board, the ASIC (IC29 [IC26]) on the FAX board, and the other peripheral devices. It changes the path for the FAX send/receive signals and connects it to each control circuit.

The CML relay is switched according to the CML1 signal output from the ASIC on the FAX board. When the CML1 signal goes HIGH, Q4 comes on to turn ON the CML relay.

The analog switch (IC3) is switched according to the CML1 signal and ATT3DB1 signal. When the CML1 signal or ATT3DB1 signal goes HIGH, the analog switch is turned ON.

The analog switch (IC5) is switched according to the RLADJ11 and RLADJ12 signals.

The analog switch is switched according to the states of the RLADJ11 and RLADJ21 signals. Turning ON the CML relay and analog switch allow the MODEM to be connected to the line.

Signal Name	Type	Active		Description	Destination

CML1	O	H	Line 1	CML Relay Control Signal	RLY3, IC3

ATT3DB1	O	H	Line 1	Attenuator Control Signal	IC3

RLADJ11, 21	O	H	Line 1	Return Loss Adjustment Signal	IC5

*Values in [ ] are for GD-1151/1201 in case that the descriptions vary between GD-1150/1200 and GD-1151/1201.

GD-1150/1151/1200/1201/1160/1260	© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
ELECTRICAL CIRCUITS

4 - 8

08/03

Image 70

Toshiba GD-1260, GD-1160, GD-1201, GD-1151, Model: GD-1150 service manual RLY3, IC3, IC5

Contents

GD-1150/1151/1200/1201/1160/1260 Trademarks STUDIO3511/4511 Model Weight Number of peopleSTUDIO281c/351c/451c Service of Machines Precautions against Static Electricity Page Contents 2003 2008 Toshiba TEC Corporation All rights reserved FAX Options FAX unit 2nd line for FAX board Original size SpecificationsFolio Embedded DBm to -8 dBm The setting can be changed by 1 dBTransmission system DBm to 0 dBm Level -55 dBm or lower cannot be detected Dimension width x length Printing area Comp Features Specifications and Outline of System Following accessories and parts come with the FAX unit Accessories and PartsQty STUDIO281c/351c/451c OptionsSTUDIO230/280 Option Function Model STUDIO202L/203L/232/233/282/283 series STUDIO352/353/452/453GD-1260NA/TW/EU/C System List GD-1150NA/TW/EU AU/AS/C GD-1150NA/TW/EU Bridge Kit KN-3511 FAX Board GD-1200 Finisher Hanging type e-STUDIO352/353 only MJ-1022 GD-1150NA/TW/EU AU/AS/C/KR Units and Components FAX MDM NCU Symbol Name Function RemarksLayout of PC Boards FAX MDM FAX FAX PWR NCU FAX power board Supplies the power -12V, +24VSTUDIO281c/351c/451c, e-STUDIO352/353/452/453 FAX control board Controls the FAX function Specifications and Outline of System Recording Mode LSU-RELATED Functions Recording paper selection algorithm Recording Paper Selection Algorithm and Printing AlgorithmPrinting algorithm ST against A3/B4/A4/LD/LT size originals respectively Discard function Length of B Discard parameter Set value Effective printing lengthOFF B4, A3 A4, B4 B5, B4 A5, A4 A5 , Comp LT, Comp COMP, LD LG/LT, LD ST, Folio B5, Folio Setting for the split recording Recording Paper and Function Others Table of the recording paper selection modesPriority Receiving FAX document, or by Energy Saver ModeUser Functions Energy Saver Memory Reception YES Circuit Connection and Procedure to Change ModeDial call-up transmission to a telephone circuit Standby state Communication mode Toshiba original procedure Selection of the communication modeProcedure to select the transmission mode Telephone circuit This signal can be sent manually Signal form Signaling System Diagram and Signal FormsCircuit control signals Signal name Signal form Communication with the binary signals Mode change possible Informing that there is the next Image signalMode change is possible only for the original set manually Receiver Only error frame retransmitted 1 completed 2 completed Frames received Error occurred CFR JOB Status button Cancel buttonCED Nsfcsidis MCF Binary signals PRI-EOM PIPPIN PRI-MPS FCF FIF FCS When this frame is the last frame, X =Format FCF format of each binary signal Binary signal Format 4800 bps, 2400 bps 9600 bps, 7200 bpsTCF 3 V.8/V.34 communication sequence Standard procedure Transmitter Receiver Line closed Signal name Abbreviation Function Remarks 150 Hz Tone signal betweenHz and 3,750 Hz in units Data transmission TRN ALT Receives an NSF sent from FlagMaintains the synchroniza 7E H Tion Transmitter Is completed Image data Image data are sent. TransmitterScrambled data frame to be Encoded image data Turn off Scrambled 1 is sent for Transmission of one Is completed Flag Short training SignalPPS-EOP Informs to disconnect the line Line closed DIS cannot be recognized DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control FAX mode FAX Automatic SwitchingTEL mode General functions Configuration Electrical Circuits FAX PWR STUDIO202L/203L/232/233/282/283 GD-1151 GD-1260 95C265 4Mbit x MN86064 Configuration Description of Circuits EU/AU/AS/C models CML1 Line path switching control circuitSignal Name Type Active Description Destination ATT3DB1 IC3 RLY3, IC3IC5 Line 1 Dial Pulse Generation Signal Q53 Dial pulse generation circuit Line 1 Dial Pulse Generation Signal Line current detection circuit Line Current Detection Signal IC29 IC26Line Reverse Current Detection Signal IC29 IC26 REVA1 Line 1 Current Detection Signal IC29 IC26 Current Reverse Line 1 Current Detection IC29 IC26 Signal Line 1 CI Detect Signal IC29 IC26 CI detection circuit Line 1 CI Detection Signal IC29 IC26 Line monitor circuit NCU board Line1 Line Monitor Monitoring signalRinger/Alarm LOW High Relation between the signals and sound volume is as follows Sound volume PC Boards PWA-F-FAX-562 / PWA-F-FAX-610 PWA-F-FAX-670 PWA-F-NCU-US-562/PWA-F-NCU-631-US PWA-F-NCU-EU-562/PWA-F-NCU-631-EU PWA-F-MDM-563 PWA-F-FAX-POWER-610 PWA-F-MDM-631 PWA-F-FAX-POWER-631 Electrical Circuits Installation Explanation to the Users Installation