Line monitor circuit, NCU board Line1 | Toshiba GD-1201, GD-1260

4.2.6Line monitor circuit

NA/TW models

		NCU board (Line1)																FAX board
																									28,29[25,26]		IC12
																											IC12
				RLY2							IC51																[IC9]
				CML relay				R67	R71		Analog															32[9]	MODEM
				CML relay							Analog																MODEM
											switch
					8	T1				3	1			IC53
		4	Lb	9							0	4	1	2	1			1	TXOUT1
	CN10			0							0
Line	CN10			1				IC53
		3	La	4			5	7	R59	1	1			IC52		CN9	CN501										IC45
				+12V		AG	6									CN9	CN501
				0								15	6	7	2			2	RXIN1				2	12	RING	43	[IC12]
										2	0	15	6	7	2			2	RXIN1				2	12	RING	43	[IC12]
				1	12																		1	IC3			CPU
				1	12										6			6						IC3			CPU
															6			6
								R66		13	1				3			3
										13	1	14			3			3						Analog
											0	14												Analog
											0													switch
																								switch	MF-SEL	6
																								9	MF-SEL	6
								R68			9,11	10										13	14	10	SP-SEL	15
								R68																11	MON	26
																								11	MON	26
																							R273				IC29
																						14					IC29
																						14			ATT3DB1	22	[IC26]
								Q51																	ATT3DB1	22	[IC26]
								Q51																	CML1	21
																							R272		CML1	21	ASIC
																							R272				ASIC
								AG														15			VOLSEL0	16
								AG																	VOLSEL1	17
																									VOLSEL1	17
																							R271		VOLSEL2	18
																	CN502	2	RXIN2			12
													NCU board (Line2)				CN502	2	RXIN2
													NCU board (Line2)
																							R270
																					IC9	1
																					[IC2]
																					Analog		R268
																					Analog	5
																					switch
																							R267
																						2
													Speaker
																			IC10[IC1]				R266
																SP+	CN503	1	5	3	3	4
																SP-	CN503	2
																			SG			11 AG
																			SG			10
																						10
																						9
														Fig. 4-15

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

GD-1151/1201.

4

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

4 - 15

08/03

Image 77

Toshiba GD-1201, GD-1260, GD-1160, GD-1151, Model: GD-1150 service manual Line monitor circuit, NCU board Line1

Contents

GD-1150/1151/1200/1201/1160/1260 Trademarks STUDIO281c/351c/451c Model Weight Number of peopleSTUDIO3511/4511 Service of Machines Precautions against Static Electricity Page Contents 2003 2008 Toshiba TEC Corporation All rights reserved FAX unit 2nd line for FAX board FAX Options Folio SpecificationsOriginal size Transmission system DBm to -8 dBm The setting can be changed by 1 dBEmbedded DBm to 0 dBm Level -55 dBm or lower cannot be detected Comp Dimension width x length Printing area Features Specifications and Outline of System Qty Accessories and PartsFollowing accessories and parts come with the FAX unit STUDIO230/280 OptionsSTUDIO281c/351c/451c Option Function Model GD-1260NA/TW/EU/C STUDIO352/353/452/453STUDIO202L/203L/232/233/282/283 series GD-1150NA/TW/EU AU/AS/C System List 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 Layout of PC Boards Symbol Name Function RemarksFAX MDM NCU FAX STUDIO281c/351c/451c, e-STUDIO352/353/452/453 FAX power board Supplies the power -12V, +24VMDM FAX FAX PWR NCU FAX control board Controls the FAX function Specifications and Outline of System LSU-RELATED Functions Recording Mode Printing algorithm Recording Paper Selection Algorithm and Printing AlgorithmRecording paper selection algorithm ST against A3/B4/A4/LD/LT size originals respectively OFF Effective printing lengthDiscard function Length of B Discard parameter Set value A5 , Comp LT, Comp COMP, LD LG/LT, LD ST, Folio B5, Folio B4, A3 A4, B4 B5, B4 A5, A4 Setting for the split recording Recording Paper and Function Priority Table of the recording paper selection modesOthers User Functions Energy Saver ModeReceiving FAX document, or by Energy Saver Memory Reception Dial call-up transmission to a telephone circuit Circuit Connection and Procedure to Change ModeYES Standby state Procedure to select the transmission mode Selection of the communication modeCommunication mode Toshiba original procedure Telephone circuit Circuit control signals Signaling System Diagram and Signal FormsThis signal can be sent manually Signal form Signal name Signal form Communication with the binary signals Mode change is possible only for the original set manually Image signalMode change possible Informing that there is the next Receiver Frames received Error occurred Only error frame retransmitted 1 completed 2 completed CED Nsfcsidis JOB Status button Cancel buttonCFR MCF Binary signals PIN PIPPRI-EOM PRI-MPS Format When this frame is the last frame, X =FCF FIF FCS Binary signal Format FCF format of each binary signal TCF 9600 bps, 7200 bps4800 bps, 2400 bps 3 V.8/V.34 communication sequence Line closed Standard procedure Transmitter Receiver Signal name Abbreviation Function Remarks Hz and 3,750 Hz in units Tone signal between150 Hz Data transmission ALT TRN Maintains the synchroniza 7E H Tion FlagReceives an NSF sent from Transmitter Scrambled data frame to be Image data Image data are sent. TransmitterIs completed Encoded image data Turn off Scrambled 1 is sent for PPS-EOP Short training SignalTransmission of one Is completed Flag Informs to disconnect the line Line closed DIS cannot be recognized DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control TEL mode FAX Automatic SwitchingFAX mode General functions Electrical Circuits Configuration FAX PWR STUDIO202L/203L/232/233/282/283 GD-1151 GD-1260 95C265 4Mbit x MN86064 Description of Circuits Configuration EU/AU/AS/C models Signal Name Type Active Description Destination Line path switching control circuitCML1 ATT3DB1 IC5 RLY3, IC3IC3 Dial pulse generation circuit Line 1 Dial Pulse Generation Signal Q53 Line 1 Dial Pulse Generation Signal Line Reverse Current Detection Signal IC29 IC26 Line Current Detection Signal IC29 IC26Line current detection circuit REVA1 Current Reverse Line 1 Current Detection IC29 IC26 Signal Line 1 Current Detection Signal IC29 IC26 CI detection circuit Line 1 CI Detect Signal IC29 IC26 Line 1 CI Detection Signal IC29 IC26 NCU board Line1 Line monitor circuit Ringer/Alarm Monitoring signalLine Monitor LOW High Sound volume Relation between the signals and sound volume is as follows PWA-F-FAX-562 / PWA-F-FAX-610 PC Boards PWA-F-FAX-670 PWA-F-NCU-US-562/PWA-F-NCU-631-US PWA-F-MDM-563 PWA-F-NCU-EU-562/PWA-F-NCU-631-EU PWA-F-MDM-631 PWA-F-FAX-POWER-610 PWA-F-FAX-POWER-631 Electrical Circuits Explanation to the Users Installation Installation