Home

Garmin GDU 370 GPS Receiver User Manual

1. 31 I IW t R21 1 LCX08 5 615232 05 50 5 LCX14 VHC125 85 5 1013 ICI 3 He 4 HHI R23 ES Raa al c8 1 10 16 10 16 010 i R26 R21C40 d 109 MC140538 C65 He seer ee IC10 MC14051B C54 LAIT TP5 EYESYNC 07 6 10 16 gt EP GW lt c 4261 TP4 EYECLK 100 10 I C64 Bey C odd 7 C10 en 103 vic 125 6 zz s LEAD FREE PCBA em I 118 vacog 10 50 C71 TCTSETO8 Sir EX 3 PWA F NCU 631 NAD TWD SAD o o Ge 17 29 16 30 2 1 s N ce PWB F NCU US 631N 6LE29536000 HALOGEN FREE PWB 2 LEAD FREE PCBA LL LBL PCB AT EP GW 2 gt D a a Le L2 o 4
2. PPS NULL Image 2 22 22 gt 256 frames received Im i 2 age signal 2 gt Error occurred PPS MPS pPR Only error frame retransmitted 22 Image Signal retransmit 2 gt PPS MPS Page 1 completed Image signal PPS EOP MCE Page 2 completed 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL Cancellation during the transmission If the CLEAR STOP button is pressed during the direct transmission or memory input the dis play to confirm the cancellation appears The communication is finished normally regardless of the presence absence of the next page or mode changes by pressing the CLEAR STOP button If the CLEAR STOP button is pressed anytime except during the transmission of the image data DCN is forcibly sent to terminate the communication To cancel the job during the memory transmission or the polling transmission job press the JOB STATUS button on the External Keyboard select the transmission job to cancel and then press the 4 button on the LCD display Transmtter Receiver CED Training T CFR JOB STATUS button CANCEL button 2777 Image signal EOP DCN GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved DIALING COMMUNICATION CONTROL 2 Binary signals NSF Non Stan
3. Confirmation for Recep tion CFR Informs that the training of the modem is completed and the receiver is ready to receive the image signal Reference In the control channel the frequency of the signals to be sent is different between the transmission and reception The signal echoed back has never been misidentified as a signal sent from the other side Therefore this channel is not influenced by signals echoed back GD 1220 1221 DIALING COMMUNICATION CONTROL 2006 2008 TOSHIBA TEC CORPORATION rights reserved Primary channel The training is performed according to the parameters set in the phase 4 The transmission rate is 1 200 bps Transmitter Signal name Abbreviation Function Remarks sent when the startup process is completed S signal S Short training Sisa signal that makes a transition from phase S S signal S PP signal PP Used by the modem of the receiver to train the equalizer B1 sequence B1 Scrambled data frame to be Image data Image data are sent Transmitter Signal name Abbreviation Function Remarks Image data Image data Encoded image data Turn off Scrambled 1 is sent for 35 ms GD 1220 1221 DIALING COMMUNICATION CONTROL 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved Communication end procedure This procedure is to termina
4. RLY2 CML relay GD 1220 1221 ELECTRICAL CIRCUITS Ring signal detection circuit Fig 4 2 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved EU AU AS C models NCU board Line current detection circuit Dial pulse generation circuit Line 105 T Analog Switch RLY3 CML relay FAX board External 1C3 telephone de switch CNG signal detection circuit DC consumption circuit Ring signal detection circuit Fig 4 3 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 2 2 Line path switching control circuit NA TW models NCU board FAX board MAIN board R4 1 IT CML1 RLY2 CML relay ATT3DB1 Line 1 TXOUT1 9 28 2 25 26 2 RXIN1 32 29 gt telephone Ring signal detection circuit Fig 4 4 The line path switching control circuit consists of the CML relay RLY2 and analog switch 1 51 on the NCU board the ASIC IC23 on the MAIN board and the other peripheral devices The CML relay is s
5. Signal Name Type Active Description Destination LD1 H Line 1 Dial Pulse Generation Signal Q6 2006 2008 TOSHIBA TEC CORPORATION All rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 2 4 Line current detection circuit NA TW models NCU board FAX board 19 REVA1 66 MAIN board 20 REVB1 33 Fig 4 8 The line current detection circuit consists of the photocoupler PC3 ASIC 1C23 on the MAIN board and the other peripheral devices It detects a dial tone and the hook status of the external telephone from the current flowing through the line When a dial tone is input from the telephone line current flows through the line and the photocoupler is repeatedly turned ON OFF This allows the REVA1 and REVB1 to be the pulse signals and input to the ASIC then the dial tone is detected When the handset is lifted from the external telephone current also flows through the line and the pho tocoupler is turned ON OFF then the off hook state is detected Signal Name Type Active Description Destination REVA1 Line 1 Current Detection Signal 23 REVB1 Line 1 Reverse Current Detection Signal 23 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved ELECTRICAL CIRCUITS EU AU AS C models NCU board 19 REVA1 66 2 Line current detection Ic 20 REVB1 Fig 4 9
6. Image data Turn Off PPh MPh ALT MPh MPh E MPh E PPS EOM flags MCF flags flags 95 NSF CSI DIS Us flags DCS flags CFR q flags S S PP B1 Image data Turn Off TZ GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved DIALING COMMUNICATION CONTROL 3 3 FAX Automatic Switching 3 3 1 General functions There are two types of setting for the FAX Auto Switching Mode Selection TEL Mode and FAX Mode 3 3 2 TEL mode This mode is selected to prioritize telephone communication when the frequency of the fax reception is low When the TEL mode is selected the automatic FAX reception function does not work Therefore when a calling signal comes from the exchange the telephone ringer continues ringing until the opera tor picks up the handset When the operator has learned that the caller is sending a FAX he has to per form the manual reception operation 3 3 3 FAX mode This mode is selected when the telephone circuit is used only for FAX communication When the FAX mode is selected and a calling signal comes from the exchange the FAX reception operation starts automatically without ringing the telephone ringer In the FAX mode a calling number can be set up to 15 calls in the SET FUNCTION FUNC 14 Bits 7 to 4 Method of judging detection 35 1 CNG Mr 2 CNG off CNG on detection T1 0 CNG determined shown above after CNG o
7. PWD Password Indicates that the FIF information is a password for the polling mode in a reception Indicates that the FIF information is a password for transmission in a transmission CFR Confirmation of Reception Informs that the FAX is ready to receive data FTT Failure to Train Informs that the TCF signal has not received correctly and requests the re training EOM End of Message Informs that the the 1st page has been transmitted and there is the next page command to return to the beginning of the phase B MPS Multi page Signal Informs that the 1st page has been transmitted and there is the next page command to return to the beginning of the phase C EOP End of Procedure Informs that a document has been transmitted and there is no more pages MCF Message Confirmation A reply to MPS EOM or informing that image signals have been received correctly and the FAX is ready to receive data RTN Retrain Negative Informs that a document has not been received correctly requests for the retraining or phase syn chronization to receive the next page 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL PIP Procedure Interrupt Positive Informs that the image signals have been received correctly and requests the operator s reply by telephone or to return to the beginning of the phase B to continue the communi
8. 0 moe 5 Qe C ORIGINAL COPY DRAWER qoo0o0000 ENTER m AUTO El para Fig 1 3 RESOLUTION MONITOR 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 11 1 8 Layout of PC Boards Fig 1 5 Symbol Name Function FAX PWA F FAX 635 GD 1220 Controls the FAX function PWA F FAX 678 GD 1221 FAX board NCU PWA F NCU 631 Control the line of telephone NCU board GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved SPECIFICATIONS AND OUTLINE OF SYSTEM 1 12 08 08 2 LSU RELATED FUNCTIONS 2 4 Recording paper size The following recording paper sizes can be used For NAD model LD LG LT LT R ST R COMP A4 A4 R For MJD AUD ASD SAD TWD CND models A3 A4 A4 R A5 R B4 FOLIO LT LT R 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS 2 2 Effective recording area 1 Head 4 mm 0 16 inch 2 Foot 4 mm 0 16 inch 3 Effective Recording Limits For NAD model Unit mm inch Paper size Size Horizontal x Vertical Effective recording area LD 279 x 432 275 x 424 11 x 17 10 8 x 16 7 LG 216 x 356 212 x 348 8 5 x 14 8 3 x 13 7 LT 279 x 216 275
9. 2 i GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved ELECTRICAL CIRCUITS 4 16 08 08 4 PWA F NCU 631 MJD AUD ASD CND HAROGEN FREE PWB LEAD FREE PCBA 17 16 2 C12 1 iF TOSHIBA PWB F NCU EU 631N 6LE29539000 EP GW 401 lt LBL PCB AT 8 Fig 4 17 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 ELECTRICAL CIRCUITS GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved ELECTRICAL CIRCUITS 5 INSTALLATION 51 Explanation to the Users After installing the FAX unit explain the following items to the user using the Operator s Manual With the underlined items actually demonstrate the operation Items to be explained Switches and control panel Summary of the control panel FAX functions After power is turned OFF image data are kept in HDD How to set originals Acceptable original size and scanning width Howto insert originals Multiple originals placed on the RADF are scanned from the first page Unacceptable originals How to set the mode image quality and density contrast T
10. 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved CONTENTS 1 SPECIFICATIONS AND OUTLINE OF SYSTEM 11 FAX Options e STUDIO165 167 205 207 237 can be used as a FAX by installing the FAX unit GD 1220 1221 Some options can be added when the FAX unit is installed or to extend the FAX functions P 1 9 1 5 Options The external keyboard GJ 1040 is necessary for the installation of the FAX unit GD 1220 1221 Be sure to use the FAX unit and the equipment only in the following combinations GD 1220 GD 1221 Remarks e STUDIO165 205 Available N A e STUDIO167 207 237 Available Available system firmware version of the equipment is T286SY 210 or later 2006 2008 TOSHIBA TEC CORPORATION All rights reserved 1 1 08 08 GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 2 Specifications 1 Main system Type Desktop type transceiver Operation Transmission Manual Automatic Reception Manual Automatic 2 Scanner Scanning density at rotation transmission Horizontal direction 16 lines mm 8 lines mm 15 4 lines mm 7 7 lines mm 3 85 lines mm Vertical direction 15 4 lines mm 7 7 lines mm 3 85 lines mm 16 lines mm 8 lines mm Combination U Fine 16 x 15 4 lines mm 15 4 x 16 lines mm Fine 8 x 7 7 lines mm 7 7 x 8 lines mm Normal 8 x 3 85 lines mm 3 85 x 8 lines mm Effective scanning area Standard mode For NAD model Horizontal s
11. Unit mm inch Paper size Dimension width x length Printing area A5 R 148 x 210 143 x 204 5 B5 R 182 x 257 177 x 251 5 B5 257 x 182 252 x 176 5 A4 R 210 x 297 205 x 291 5 A4 297 x 210 292 x 204 5 B4 257 x 364 252 x 358 5 A3 297 x 420 292 x 414 5 FOLIO 210 x 330 205 x 324 5 ST R 139 7 x 216 5 5 x 8 5 134 7 x 210 5 LT R 216 x 279 4 8 5 x 11 211 x 273 9 LT 279 4 x 216 11 x 8 5 274 4 x 210 5 LG 216 x 355 6 8 5 x 14 211 x 350 1 LD 279 4 x 431 8 11 x 17 274 4 x 426 3 COMP 257 x 356 10 125 x 14 252 x 350 5 GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved 1 3 Features High speed scanning The GD 1220 1221 scan one Letter A4 size Original page in 1 4 seconds line density 8 dots mm x 3 85 lines mm and stores it into memory High speed transmission The GD 1220 1221 uses a V 34 modem designed for 33 600 bps communications Multi access Using the multi access facility multiple processes can be performed in parallel Functions such as transmission reservation during reception copying during memory transmission reception etc Maximizing the GD 1220 1221 s high speed scanning and multi access capabilities provides maxi mum office productivity and efficiency Patterns of the multi access are as follows Scan to Memory during Memory Transmission Scan to Memory during Reception Scan to
12. e MAIN board 12 RING Ka SPKCLK 9 10 TONESEL 59 ku RING TONE ATT3DB1 CML1 SPVOLO SPVOL1 57 Fig 4 12 4 12 08 08 SPVOL2 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved EU AU AS C models NCU board MAIN board 12 RING 1221 SPKCLK 9 10 TONESEL ku RING TONE ATT3DB1 SPVOLO SPVOL1 SPVOL2 0 Analog Speaker Fig 4 13 The line monitor circuit consists of the CML relay NA TW RLY2 EU AU AS C RLY3 analog switch NA TW IC51 EU AU AS C IC3 analog switches IC9 IC10 on the FAX board ASIC IC23 and SoC 1C53 on the MAIN board and other peripheral devices It switches the telephone line path using the analog switch and monitors the line status and ringer signal in the FAX transmission and reception using the speaker connected to CN503 on the FAX board It also switches the analog switch to output a buzzer tone from the speaker The signal to be monitored is selected by switching the analog switch IC9 according to TONESEL sig nal and RING TONE signal which are output from the ASIC To monitor the line during the tr
13. MM DD YY 17 56 From 888 Page 001 Fig 2 6 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS 8 Received document and selection of recording paper The procedure for selecting recording paper handled by this machine is briefly described below Recording paper for reception print is selected according to the print recording paper range and priority as listed in Table 2 A printable print recording paper range is selected according to the scanning width and feed length of the received document A print recording paper range is selected by taking the dis card length and feed reduce ratio into consideration Shown is an example where an EU model is used the discard parameter is 10 mm the feed reduce ratio is max 75 96 the scanning width of the received image is A4 the number of lines received is STD or 2000 lines Since the scanning width is A4 the recording paper range to be selected is one of A5 R A4 R FOLIO B4 and Since 2000 lines are converted to 519 mm a feed length to allow 390 mm to be printed on one page with a max reduce ratio of 75 96 is selected The recording paper length of A4 is 297 mm the recording paper length of B4 is 364 mm and the recording paper length of A3 is 420 mm Therefore an A3 paper range covering 390 mm is selected After an A3 range is selected recording paper is selected according to the priority in Table 2 followed by printing Table 1 Select
14. Reversing Automatic Document Feeder RADF Feeds originals MR 3019 External Keyboard Various dialings GJ 1040 The external keyboard GJ 1040 is necessary for the installation of the FAX unit GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved 1 9 08 08 GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 6 System List Automatic Reversing Automatic Document Feeder Document Feeder Platen Cover ADF RADF KA 1640PC MR 2017 MR 3019 E SS L External mE GJ 1040 Fax Kit GD 1220 1221 NA EU AU TW Fig 1 1 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved SPECIFICATIONS AND OUTLINE OF SYSTEM 1 10 08 08 1 7 Units and Components Original scale Original glass Scanning area Toner cartridge Power switch ENERGY USER SAVER INTERRUPT FUNCTIONS MIXED size eio C AMS APS Bal CD D A O FAX SCAN PRINTER COPY JL amp JLo FUNCTION SETTINGS CLEAR Ata D J B as D o a 84 O TEXT PHOTO 0 CANCEL D D B PHOTO OTHER C a
15. 8 1 5 3 ODlIOllS tenis Ser e mui if iu 1 9 1 6 System Listo noe o ot p Dc een De ener ens 1 10 1 7 Units and Components ss 1 11 7 9 Boards ode diu ge cec ide mettre ti frs attire tant le 1 12 2 LSU RELATED FUNCTIONS 2 2 iie inen enne neon anneau 2 1 2 1 Recording paper size ud eee dean ae dava ba 2 1 2 2 Effective recording area sise 2 2 2 3 Print mode eer ee LEM re rid educ dotar ah ee 2 4 2 4 Recording paper selection algorithm and print algorithm 2 5 2 4 1 Recording paper selection algorithm 2 5 2 42 Print algorithim nied echo tat e Rei ER RA Ee Eee a 2 5 2 5 Error processing frere aan AR CURL ee A oe e due ee 2 14 2 6 Limitations on reception eene nnne 2 15 3 DIALING COMMUNICATION CONTROL esee nnne 3 1 3 1 Circuit Connection and Procedure to Change 3 1 3 1 1 Dial call up transmission to a telephone circuit 3 1 3 1 2 Selection of the communication 3 2 3 1 3 Procedure to select the transmission mode 3 2 3 2 Signaling System Diagram and Signal Forms 3 3 3 221 Circuit control signals tpe RUE m Pl meti e Ua 3 3 3 2 2 Communicatio
16. carried out the recorded data is divided in the vertical direction and printed on two or more sheets with maximum length set up in the equipment without reduction If a long original with length of 216 mm which cannot be recorded on one B4 sheet with the maximum reduction is received when A4 B4 and A5 paper is loaded in the first second and third drawers respectively for example the maximum recording paper B4 is selected and received data is divided and printed on two or more sheets without reduction Refer to 2 13 Table 3 Selection of record ing paper Long original Ex 1 Divided into two sheets Ex 2 Divided into three sheets Fig 2 3 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS 4 Similar reduction print When recording paper of the same size as that of the received document is not available due to running out of paper or no paper is available to cover the received document the received document is similarly reduced and printed on recording paper smaller than the received document Ex 1 To print A3 size received document on an A4 R sheet because of running out of paper Similar reduction Fig 2 4 5 Rotation print When recording paper of the same size as that of the received document exists but the orientation
17. formed Network interaction ANSam Each declares that it has V 34 capability The Phase 1 procedure moves to V 34 in the phase 2 CM Bm P3 14 JM ERE ee Ce CJ INFOOa After the information about the modem Probing Ranging A porn bility is exchanged the receiver determines Phase 2 B bm P3 15 E the modulation speed based on the result of L2 reception of the probing signal which was sent A by the transmitter B INFOOh Equalizer Echo 5 To determine the image transmission speed canceller training S the transmitter sends a training signal Phase 3 PP P3 16 TRN PPR I Spn Final training ALT AE The optimum image transmission speed is Phase 4 MPh MPh determined according to the training signal gt P3 16 MPh received E MPh a a E NSF flags CSI The pre FAX transmission which is the same DIS as that for the normal T 30 is performed at NSS 1 200 bps Control channel TSI flags P3 17 DCS flags CFR flags 27 5 training signal is sent with the determined S parameter then the image data are sent Primary channel PP P3 18 B1 Image Image data data P3 18 Turn Off Sh Sh The post FAX transmission which is the same x Sh as that for the normal T 30 is performed at Communication E ALT 1 200 bps end procedure PPSEOP 1 E gt P3 19 28 flags MCF DCN flags q Y Line opened P 4 Line opened 2006 200
18. this machine prints on the recording paper of the same size as when sent as a rule If no recording paper of the iden tified size is not available it selects recording paper for printing according to the set mode The mode is set by using Func 15 bit 3 1 Automatic reduction mode Func 15 bit 3 0 Default Selects recording paper on which the received document can be printed and prints on it 2 Reduction OFF mode Func 15 bit 3 1 Selects recording paper on which the received document can be printed in a full size 2 4 2 Print algorithm A reception print image is basically printed on one page Consequently the algorithm of reception print is in the order of same size print discard extra vertical reduction print and divided print Refer to the reception print flowchart 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS Reception print flowchart Start v Receive FAX Within effective recording area Fraction discard fraction discard length Vertical reduction ON Calculate reduce ratio y from actual image data y within max reduce ratio Vertical reduction print YES NO Full size print Fraction discard print Divided print Judgment parameter Effective recording area Area excluding 4 mm from the top of recording p
19. x 208 11 x 8 5 10 8 x 8 2 LT R 216 x 279 212 x 271 8 5 x 11 8 3 x 10 7 ST R 140 x 216 136 x 208 5 5 x 8 5 5 4 x 8 2 COMP 257 x 356 253 2 x 348 10 125 x 14 9 97 x 13 7 A4 297 x 210 293 x 202 A4 R 210 x 297 206 x 289 GD 1220 1221 LSU RELATED FUNCTIONS 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved For MJD AUD ASD SAD TWD and CND models Unit mm inch Paper size Size Horizontal x Vertical Effective recording range A3 297 x 420 293 x 412 A4 297 x 210 293 x 202 A4 R 210 x 297 206 x 289 A5 R 148 x 210 144 x 202 B4 257 x 364 253 x 356 FOLIO 210 x 330 206 x 322 LT 279 x 216 275 x 208 11 x 8 5 10 8 x 8 2 LT R 216 x 279 212 x 271 8 5 x 11 8 3 x 10 7 2mm 2mm 0 08 inch 0 08 inch 4 mm 0 16 inch Effective recording area Feed direction mm 0 16 inch Fig 2 1 2006 2008 TOSHIBA TEC CORPORATION All rights reserved GD 1220 1221 LSU RELATED FUNCTIONS 2 3 Print mode The machine provides various print modes to meet various requests from users such as applicable recording paper types recording methods etc GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS 2 4 Recording paper selection algorithm and print algorithm 2 4 1 Recording paper selection algorithm Capable of identifying the above mentioned recording paper size of a received image
20. 0 abbreviated dial numbers can be assigned in the range from No 001 to 999 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 5 08 08 Alternate number dialing It is possible to assign two facsimile telephone numbers to one abbreviated dial number or one touch dial key one as the primary telephone number and the other as an alternate telephone num ber The facsimile first dials the primary telephone number then redials if the line is busy until the redialing limit count is reached It will then begin to dial the alternate number Except for Relay Mail box Confidential Polling Multi address transmission function Transmissions of the same original to multiple addresses up to 375 addresses are possible using one operation sequence in which preset abbreviated dial numbers 300 and one touch dial keys 75 can be used When the multi key is specified key pad dialing of up to 100 locations is also pos sible e Multi polling reception Polling receptions from multiple remote parties up to 375 parties are possible using one operation sequence in which preset abbreviated dial numbers 300 and one touch dial keys 75 can be used When the multi key is specified key pad dialing of up to 100 locations is also possible Relay transmission request function The GD 1220 1221 can originate a relay transmission or serve as a relay station in relay transmis sion transact
21. 2 B4 B4 B4 1 3 A4 R A4 R 7 A4 R 7 4 A4 8 13 A4 713 5 FOLIO FOLIO FOLIO 6 LT R LT R 7 LT R 7 ET pos prts 8 A5 R 7 A5 R 7 A5 R 7 1 Similar reduction possible 2 Center printing when printing out to a size larger in the scanning direction 3 Rotation processing 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS 2 5 Error processing If paper has run out or a drawer has been pulled out follow the procedure described below 1 If recording paper of a larger size has run out during communication For DIS redeclaration in the mode change procedure declare the first recording paper size declared as it is 2 If a document has been received with recording paper of a larger size empty Declare the maximum value of the remaining recording paper or the attached drawer Conform to the setting of Func 8 bit 4 3 If the drawer has been pulled out Assume A4 if none of the drawers is left 4 If all paper has run out When the recording paper width capacity is recording paper and all paper has run out assume A4 Same processing is done when only the recording paper of scan width less than 216 mm is set GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS 2 6 Limitations on reception print The following limitations are imposed on reception print 1 Reception print is not performed from the SFB 2 Ev
22. 3 4 Er LG LG A4 R 6 COMP A4 R A4 R 4 1 A4R A4 7 LD COMP A4 A4 Ts 4 T3 COMP 2 8 STR S R 5187 ST R 1 ST R LD For MJD AUD ASD SAD TWD and CND models Recording paper range A4 R B4 A3 A4 A5 FOLIO B5 Priority of 1 A4 R B4 A3 A4 A5 R 3 FOLIO B4 recording paper 2 A43 B4 1 A4 R 3 A4 R B4 4 2 3 FOLIO MR A3 8 2 A4 R 23 4 LT R 4 19 3 roLIo 3 FOLIO A4 R 28 5 LT FOLIO FOLIO 4 23 LER A4 FOLIO 23 6 B4 LT R 7 LT R 7 LT LT LT R LT 7 2 LT R 9 B4 r s LT R 23 8 A5 R 7 5 7 5 1 A5 R 13 5 1 A amp R 13 1 Similar reduction possible 2 Center printing when printing out to a size larger in the scanning direction 3 processing GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS Table 3 Selection of recording paper Long original For NAD model Recording paper range LT long COMP long LD long Priority of 1 LD LD recording paper 2 COMP COMP COMP 3 LT R LT R 1 ET R 4 LT T 5 LG LG LG 6 A4 R A4 R 7 A4 R 1 7 A4 9 A419 A4 713 8 ST R 61 87 ST R 7 For MJD AUD ASD SAD TWD and CND models Recording paper range 4 long B4 long A3 long Priority of 1 A3 A3 recording paper
23. 3 1 2 Selection of the communication mode This machine has three types of communication mode The mode to be used is determined according to the combination of the types of the circuits and communication and available function of the other side s machine Communication mode Toshiba original procedure ECM G3 Telephone circuit 3 1 3 Procedure to select the transmission mode START Other side machine has the Toshiba original procedure mode Other side machine has ECM mode Other side machine has G3 mode 5 Communication using the YES Toshiba original procedure YES ECM communication G3 communication 1 This step is only checked when the other side machine has CRP2 CRP1 or when the trans mission is started by the CRP calling The first transmission to the other side with CRP1 only is performed in the ECM mode GD 1220 1221 DIALING COMMUNICATION CONTROL 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved 3 2 Signaling System Diagram and Signal Forms 3 2 1 Circuit control signals The following circuit control signals are used in the binary and tonal procedures Circuit control signals CED Called station identification Indicates that the sender is a FAX machine in the automatic called mode 1 CNG Calling tone Indicates th
24. 8 TOSHIBA TEC CORPORATION AII rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL Network interaction Phase 1 The V 8 procedure is performed as the startup procedure for the V 34 high speed modem In the V 8 procedure mainly the optimum modulation method V series modem mode that can be operated between the transmitter and receiver is determined Transmitter Signal name Abbreviation Function Remarks Calling tone CNG 1100 Hz tone signal specified by T 30 indicating the sender is a FAX machine in the auto matic calling mode Call Menu signal CM Mainly indicates an available modulation method such as V 21 V 27ter V 29 V 17 V 34 etc Modulated by V 21 L 1 Transmission rate 300 bps CM terminator CJ Indicates the detection of the JM signal or the termination of CM signal Modulated by V 21 L 1 Transmission rate 300 bps Call Indicator signal CI Indicates the general commu nication functions It is sent when the V 8 procedure is restarted For the late start only P3 20 Modulated by V 21 L 1 Transmission rate 300 bps Receiver Signal name Abbreviation Function Remarks Answer amplitude tone ANSam 2100 Hz tone signal ampli Tone equivalent to CED of the tude modulated to 15 Hz conventional machine Joint Menu signal JM Indicates the terminal type Modulated by V 21 H 1 such as a FAX mach
25. ALING COMMUNICATION CONTROL Multi page sequence In the same manner as the T 30 procedure the transmitter sends a PPS MPS signal after send ing the image data The receiver sends an MCF signal and moves to the next page transmission Transmitter Receiver 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL Mode change The transmitter and receiver send a PPS EOM signal and an MCF signal respectively Then the receiver and transmitter send a DIS signal and a DCS signal respectively to change the mode Transmitter Receiver Turn Off E PPS EOM flags GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL Change of the image transmission speed by the receiver The receiver sends a PPh signal responding to an Sh signal sent from the transmitter Then the image transmission speed is determined according to the MPh sequence sent from the both modems Transmitter Receiver 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL Change of the image transmission speed by the transmitter The transmitter sends a PPh signal after sending the image data The receiver returns a PPh sig nal Then the image transmission speed is determined according to the MPh sequence sent from the both modems Transmitter Receiver
26. FAX board MAIN board The line current detection circuit consists of the line current detection IC IC2 ASIC 1 23 on the MAIN board and the other peripheral devices It detects a dial tone and the hook status of the external telephone from the current flowing through the line When a dial tone is input from the telephone line current flows through the line The line current detec tion IC sends REVA1 and REVB1 to the ASIC as pulse signals This allows a dial tone to be detected Signal Signal Name Type Active Description Destination REVA1 Line 1 Current Detection Signal 23 REVB1 Current Reverse Line 1 Current Detection 23 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 2 5 CI detection circuit NA TW models NCU board FAX board MAIN board 12V RLY2 CML relay Li 201 203 C1 R2 Ine fH Fig 4 10 The Cl detection circuit consists of the photocoupler 2 ASIC 1 23 on the MAIN board and the other peripheral devices to detect a ring signal input from the telephone line The ASIC makes the CML1 signal become LOW to connect the Cl detection circuit to the telephone line When ring signal is input from the telephone line the photocoupler is repeatedly turned ON OFF This allows the Cl1 signal to become a pulse signal and input to the ASIC on the MAIN board thereby d
27. File No SME060017B0 R060121B2200 TTEC Ver02 2008 08 TOSHIBA Leading Innovation gt gt gt SERVICE MANUAL FACSIMILE GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved Under the copyright laws this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION No patent liability is assumed however with respect to the use ofthe information contained herein GENERAL PRECAUTIONS REGARDING THE SERVICE FOR e STUDIO165 167 205 207 237 AND GD 1220 1221 The installation and service should be done by a qualified service technician 1 Transportation Installation When transporting installing the equipment remove the drawer employ two persons and be sure to hold the positions as shown in the figure The equipment is quite heavy and weighs approximately 32 5 kg 71 65 Ib therefore pay full attention when handling it Be sure not to hold the movable parts or units when transporting the equipment Be sure to use a dedicated outlet with AC 110 V 13 2 A 115 V or 127 V 12 A 220 240 V or 240 V 8 Afor its power source The equipment must be grounded for safety Select a suitable place for installation Avoid excessive heat high humidity dust vibration and direct sunlight Provide proper ventilation since the equipment emits a slight amount of ozone To insure adequate working space for the copying operation keep a minimu
28. Memory during Substitute Reception Copying during Memory Transmission Reception during Copying Reception during Memory printing Reception during List printing Scan to Memory during Memory printing Scan to Memory during List printing Laser recording on plain paper Recording is performed on fixed sizes of paper Ledger Legal Letter Letter R Statement State ment R Computer A4 A4 R to NAD model or A3 A4 A4 R A5 R B4 FOLIO Letter Letter R to MJD AUD ASD SAD TWD CND models using a laser beam printer Halftone system Photographic images are clearly recorded by the 256 grayscales using the error diffusion method High resolution mode The GD 1220 1221 can transmit in ultra fine mode 406 x 392 mage memory communication function Picture data can be stored in the image memory For a delayed transmission the picture data cre ated by scanning Originals is stored in the image memory and to be transmitted at the designated time Other memory functions include multi address transmission substitute reception ECM communica tion etc The memory contents will be retained by a backup battery for up to 2 hours if a power failure occurs The memory size is 5 7 MB 75 touch keys The remote party s address data can be registered to a one touch key Communication options can be registered for each address Some one touch keys also operate as direct function access keys 300 abbreviated dial numbers 30
29. ansmission and reception the ASIC makes the CML1 signal become HIGH to switch the analog switch and connect the line to the MODEM side For the line path switching control refer to P 4 4 4 2 2 Line path switching control circuit The relation between the signal levels and monitoring signals is as follows Monitoring signal TONESEL RING TONE LINE Monitor LOW HIGH Ringer Alarm LOW 2006 2008 TOSHIBA TEC CORPORATION All rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 13 08 08 The monitoring signal selected by 1 9 is input to the analog switch IC10 to select the output sound volume The sound volume is selected by switching IC10 according to the SPVOLO 2 signals output from the ASIC and selecting an input resistance for the monitoring signal The relation between the signals and sound volume is as follows Sound volume SPVOL2 SPVOL1 SPVOLO Max 7 LOW LOW LOW 6 LOW LOW HIGH 5 LOW HIGH LOW 4 LOW HIGH HIGH 3 HIGH LOW LOW 2 HIGH LOW HIGH Min 1 HIGH HIGH LOW Silent 0 HIGH HIGH HIGH The monitoring signal whose volume is controlled by IC10 is amplified by the OP amplifier IC17 then output to the speaker Signal Name Type Active Description Destination TONESEL H Line Tone Selection Signal IC9 RING TONE H Ring Tone Selection Signal IC9 SPVOLO 2 H Speaker Volume Control Signals 0 2 IC10 Val
30. aper and 4 mm from the bottom Discard Function setting by user Vertical reduction Function setting by user Discard parameter Func 15 bit 6 7 GD 1220 1221 LSU RELATED FUNCTIONS 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved 1 Discard printing Func 15 bit 2 permits selecting between ON and OFF of the option for discard extra Func 15 bit2 2 0 OFF Func 15 bit 2 1 ON Default Func 15 bits 6 and 7 allow the discard parameter to be set Func 15 Default Setting bit 2 0 bit 6 1 bit 7 0 bit 2 bit 6 bit 7 Discard parameter 0 X X Discard OFF 1 0 0 0 mm Discard OFF 1 1 0 10 mm 1 0 1 17 mm 1 1 1 34 mm When the option for discard extra is ON When the length of the received document in the feed direction exceeds the effective recording area and the part exceeding one page is within the discard parameter printing takes place with the exceeding part discarded When the length of the received document in the feed direction exceeds the discard parameter range and is within the reduction range of the maximum reduce ratio vertical reduction print takes place When it is not within the reduction range of the maximum reduce ratio divided print takes place The discard extra takes preference over the vertical reduction print Rev doc Rcd paper A Effective recording area B Record data length outside effective recor
31. at the sender is a FAX machine in the automatic calling mode 1 1 This signal can be sent manually Signal form Signal name Signal form Signal form CED f 2100 15 Hz f t 2 6 4 0 sec t CNG f 1100 38 Hz f f t 0 5 sec 15 L 1 L 3 sec t t 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL 3 2 2 Communication with the binary signals In the Toshiba original procedure G3 modes communication is performed with the binary procedure as follows 1 Binary procedure Transmission and reception in the Toshiba original procedure G3 modes Transmtter Receiver CED NSF CSI DIS NSS TSI DCS Training TCF CFR Mode change possible MCF NSF CSI DIS NSS TSI DCS Training TCF CFR Informing that there is the next page Mode change is possible only for the original set manually GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL Transmission and reception in the ECM mode ECM Error Correction Mode conforms to T 30 When an error has occurred to the received image data the receiving station informs the sending station of the occurrence of the error and the sending station sends the image data again Transmtter Receiver CED NSF CSI DIS NSS TSI DCS Training TCF CER
32. ate 600 bps such as the modulating speed and frequency transmission capability Tone A A Synchronization between the Aisa signal that shifts the modems by 2 400 Hz tone phase A 180 Tone A A signal INFO sequence INFOOh Based on the analysis of the Transmission rate 600 bps line probing signal sent from the transmitter it informs the pre emphasis filter and modu lating speed to be used for the data transmission GD 1220 1221 DIALING COMMUNICATION CONTROL 2006 2008 TOSHIBA TEC CORPORATION rights reserved Equalizer and echo canceller training Phase 3 Training adjustment is performed according to the parameters set in the phase 2 to optimize the filters such as an equalizer Transmitter Signal name Abbreviation Function Remarks S signal S Short training Sisa signal made as the result of phase transition of S S signal S PP signal PP Used by the modem of the receiver to train the equalizer TRN signal TRN Used by the receiver to deter mine the transmission rate Final training Phase 4 The settings such as the maximum value for the data rate selection of the trellis encoder and data rate which can be supported are made in this phase Transmitter receiver Signal name Abbreviation Function Remarks PPh signal PPh Used by the modem of the other side to train the equal izer ALT signal ALT Modulation parameter MPh In
33. canning Max 280 mm Ledger width Vertical scanning Max 432 mm Ledger length For MJD AUD ASD SAD TWD and CND models Horizontal scanning Max 297 mm A3 width Vertical scanning Max 420 mm A3 length Long original mode For NAD model Horizontal scanning Max 280 mm Ledger width Vertical scanning Max 1000 mm For MJD AUD ASD SAD TWD and CND models Horizontal scanning Max 297 mm A3 width Vertical scanning Max 1000 mm Note The maximum vertical scanning length is 700 mm when transmission is performed satisfying all of the following conditions The equipment is in the long original mode Direct transmission is performed The original has the same width as of A3 or ledger The receiving facsimile machine is capable of receiving originals with A4 only GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved SPECIFICATIONS AND OUTLINE OF SYSTEM 3 Transmission system Circuits to be used Subscriber line FAX communication network G3 Calling automatic transmission including the sequential multi address transmission Calling automatic reception polling reception Called automatic transmission polling transmission Called automatic reception Calling manual transmission Calling manual reception Called manual transmission Called manual reception Communication mode High speed mode Toshiba original procedure mode G3 mode ECM Error Correction Mode Circuit carr
34. cation i e CALL Request etc PIN Procedure Interrupt Negative Informs that the image signals have not been received correctly and requests for operator s reply by telephone or to return to the beginning of the phase B to continue the communication PRI EOM Procedure Interrupt EOM Command similar to EOM Operation by operator is necessary PRI MPS Procedure Interrupt MPS Command similar to MPS Operation by operator is necessary PRI EOP Procedure Interrupt EOP Command similar to EOP Operation by operator is necessary DCN Disconnect Command to disconnect the FAX line and to connect the telephone line Reply from the other side is not necessary RR Receive Ready Informs that the FAX is ready to receive documents and requests for data to set the reception mode ECM mode RNR Receive Not Ready Informs that the FAX is not in the receivable state ECM mode PPR Partial Page Request Informs that a part of page ECM block has not been received correctly The number of the frame needs to be corrected is informed by the FIF EC mode PPS Partial Page Signal Informs that a part of page ECM block or one page has been transmitted EC mode CTC Continue to Correct Replies to the 4th PPR which requests to correct the image signal informs that the transmitting station will continue to correct the frame data ECM mode CTR Response for Continue to Correct Replies to CTC and informs that the recei
35. d on the unit itself If it matches the transmission will start For receptions the facsimile checks if the telephone number of the remote party s TSI matches any number assigned to an abbreviated dial number or one touch key If it matches the reception will start Thus transmissions or receptions with any authorized party will be prevented at the earliest stage GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved SPECIFICATIONS AND OUTLINE OF SYSTEM Substitute reception into memory When there is no paper remaining in the drawer s when a recording paper jam occurs the toner is empty or printing is already in progress the received data is stored into memory instead of being output to recording paper When the trouble is corrected or the active printing job is completed the received data in memory will then be printed Communication options If necessary the function may be changed and options can be selected for page number line moni toring turnaround polling ECM communication and security transmission etc Automatic dialing functions Dialing with a time designated Transmitting a original to a designated party at a designated time Redialing When an automatic dialing has been performed and the destination party is busy redialing will be repeated as many times as programmed with a certain time interval also programmed Cover sheet function This facsimile has a facsimile cover sheet preparation featu
36. dard Facility Informs that the receiving station machine has a non standard facility NSC Non Standard Facility Command Command to transmit using the non standard facility which is selected corresponding to NSF i e Polling etc NSS Non Standard Facility Setup Command to transmit using the non standard facility which is selected corresponding to NSF or NSC CSI Called Subscriber Identification Provides the telephone number of the called station Used to check the identity of the called sta tion CIG Calling Subscriber Identification Provides the telephone number of the calling station Used to check the identity of the calling sta tion Polling etc TSI Transmitting Station Identification Provides the telephone number of transmitting station Used to check the identity of the transmit ting station DIS Digital Identification Signal Informs that the receiving station machine has a standard facility G3 G2 DTC Digital Transmit Command Command to transmit using the standard facility which is selected corresponding to DIS i e Poll ing etc DCS Digital Command Signal Commands to transmit using the standard facility which is selected corresponding to DIS or DTC SUB Sub address Indicates that the FIF information is a sub address in the domain on the call in side SEP Select Polling Indicates that the FIF information is a sub address for the polling mode
37. ding area Fig 2 2 If the length of B is less than the set discard parameter B is discarded When the option for discard extra is OFF The vertical reduction takes preference without performing discard extra print 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS 2 Vertical reduction print Func 15 bit 5 permits selecting between ON and OFF of the option for Vertical reduction print Func 15 bit 5 0 OFF Func 15 bit 5 1 ON Default When the option for Vertical reduction print is ON When the length of the received document in the feed direction exceeds the effective recording area the feed length is reduced in an appropriate reduce ratio and then the received document is printed on one sheet of recording paper The following two patterns of maximum reduce ratio are available according to the setting of Func 15 bit 1 Func 15 bit 1 0 Max reduce ratio 90 The reduce ratio settings of 95 and 90 96 are valid Func 15 bit 1 1 Max reduce ratio 73 The reduce ratio settings of 95 96 90 96 86 80 83 and 73 are valid When the option for vertical reduction print is OFF When the length of the received document in the feed direction exceeds the effective recording area divided print takes place 3 Divided print When received data cannot be recorded on one sheet even if reception reduction and reception dis card are
38. e line characteris tics of the line 3 In the ITU T Recommendation it is described as data rate Image transmission speed is the same as data rate 4 n the ITU T Recommendation it is described as symbol speed The Symbol rate Modulating speed and Baud rate are the same thing This machine cannot realize the speed of 2 743 symbol sec Notes 1 ECM is used in the V 34 procedure If the setting for the ECM transmission reception of the user data is set to Not performed the V 8 procedure is not performed and the procedure is not switched to V 34 V 17 or lower is selected in this case 2 When the transmission reception speed is set to 14 4 kbps or slower the V 8 procedure is not performed and V 17 or lower is selected 3 See Late start P3 20 to move to the V 8 V 34 procedure after starting with the V 21 proce dure 4 After the V 34 procedure is started the fallback for the V 34 procedure is performed However the fallback for the V 17 mode or lower mode is not performed GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL 2 Standard procedure Transmitter Receiver LENG Line closed Ine close The available modulation mode is in
39. en if the ADU is installed it cannot be used 3 When illegal paper is selected and printed on due to an operator mistake the completion of printout is assumed and no printout is performed again 4 The feed length of a received document is not limited That is printing is performed even if the received document has several lines for printing However if the top lines are less than 5 lines no printing takes place This also applies to multiple pages in divided print 5 Paper of the same size is present in multiple drawers printing takes place according to the following drawer priority Order Drawer 1 Drawer selected by code 480 in system mode 2 1st drawer 3 2nd drawer 4 3rd drawer 5 4th drawer 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved LSU RELATED FUNCTIONS 3 DIALING COMMUNICATION CONTROL 3 1 Circuit Connection and Procedure to Change Mode 3 1 1 Dial call up transmission to a telephone circuit START YES Detecting a calling signal YES DC circuit closed After detecting the dial tone or 3 3 seconds elapsed Y Selection signal sent out Y END Standby state 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL
40. etecting the ring signal Signal Name Type Active Description Destination CI Line 1 CI Detect Signal 23 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved ELECTRICAL CIRCUITS EU AU AS C models NCU board 12V RLY3 CML relay FAX board MAIN board C8 R4 ZD2 ZD3 1 4 at Fig 4 11 The Cl detection circuit consists of the photocoupler PC1 ASIC 1 23 on the MAIN board and other peripheral devices to detect a ring signal input from the telephone line The ASIC makes the CML 1 signal become LOW to connect the Cl detection circuit to the line When a ring signal is input from the telephone line the photocoupler is repeatedly turned ON OFF This allows Q5 to be turned ON OFF and the 1 signal to become a pulse signal and input to the ASIC on the MAIN board thereby detecting the ring signal Signal Name Type Active Description Destination CI Line 1 CI Detection Signal 23 2006 2008 TOSHIBA CORPORATION rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 2 6 NA TW models NCU board RLY2 CML relay Line monitor circuit 1 51 R67 R71 Analog switch Line GD 1220 1221 ELECTRICAL CIRCUITS TXOUT1 1 02 72 5427 1 1 D DUNS of 6 2 o
41. forms the parameters used for the image transmission such as maximum data signal rate and type ofthe trellis cod ing pre coding E sequence E 20 bit sequence of 1 s in binary GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL Control channel The conventional T 30 procedure is performed The transmission rate is 1200 bps Transmitter Signal name Abbreviation Function Remarks Flag flags Maintains the synchroniza 7E H tion Non standard facilities NSS Receives an NSF sent from setting the receiver It selects the available mode from the received NSF and specifies the mode for the reception Transmitting Subscriber TSI Informs the telephone number ID of the transmitter Digital Command Signal DCS Specifies the mode that can be used for the communica tion Declares to switch to the high speed procedure 1 is sent continuously Receiver Signal name Abbreviation Function Remarks Non Standard Facilities NSF Informs the presence of the facilities other than those rec ommended by ITU T abbrevi ated user names and manufacturer codes etc Called Subscriber ID CSI Informs the telephone number of the receiver Digital Identification Signal DIS Informs the standard facilities recommended by ITU T Flag flags Maintains the synchroniza tion
42. ier link equalization function Embedded Output level 16 dBm to 8 dBm The setting can be changed by 1 dB Input level 43 dBm to 0 dBm Level 55 dBm or lower cannot be detected Specifications of the communication mode High speed mode Toshiba original procedure mode G3 mode ECM Horizontal scanning den sity 8 dots mm 16 dots mm Same as on the left Same as on the left Vertical scanning density 3 85 lines mm 7 7 lines mm 15 4 lines mm Same as on the left Same as on the left Encoding system MH MR MMR JBIG MH MR MH MR MMR JBIG Transmission speed image signal and modu lation method 14 4 k 12 k 9600 7200 4800 2400 bps Conformance to V 17 V 29 V 27 ter Same as on the left 33 6 k 31 2 k 28 8 k 26 4 k 24 k 21 6 k 19 2 k 16 8 k 14 4 k 12 k 9600 7200 4800 2400 bps Control signal 300 bps V 21 Same as on the left 1200 bps V 34 300 bps V 21 Procedure to control the transmission Toshiba original procedure T 30 conformance Same as on the left 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 4 Recording system Recording method Electrophotographic recording method by LSU Laser Scanning Unit Resolution Horizontal density 16 dots mm Vertical density 15 4 lines mm Recording paper size and the effective printing area
43. ine Transmission rate 300 bps Response to a CM sent from the transmitter and informs available modulation method V2 L Low frequency channel defined by the V 21 recommendation 1 080 100 Hz 980 Hz 1 1 180 Hz 0 V 21 H High frequency channel defined by the V 21 recommendation 1 750 100 Hz 1 650 Hz 1 1 850 Hz 0 GD 1220 1221 DIALING COMMUNICATION CONTROL 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved Probing Ranging Phase 2 Examines the line characteristics and sets the parameters for the modulation related items such as the modulating speed Transmitter Signal name Abbreviation Function Remarks INFO sequence INFOOc Informs the modem capability Transmission rate 600 bps such as modulating speed and frequency transmission capability two frequency bands high and low used to examine the line characteris tics and requests for adjust ing Tone B B Synchronization between the B is a signal that shifts the modems by 1200 Hz tone sig phase B 180 Tone B B nal Line probing signal L1 L1 Tone signal to analyze the line Probing is to examine the line es characteristics by probing characteristics Line probing signal L2 L2 Tone signal between 150 Hz and 3 750 Hz in units of 150 Hz Receiver Signal name Abbreviation Function Remarks INFO sequence INFOOa Informs the modem capability Transmission r
44. ion of recording paper range For NAD model Scanning 216 mm 256 mm 303 mm Feed length ST 140 mm ST R COMP LT LT 216 mm LT R COMP LT LT R 279 mm LT R COMP LD LG COMP 356 mm LG COMP LD LD 432 mm LD LD LD Long original over 432 mm LT long COMP long LD long For MJD AUD ASD SAD TWD CND models Scanning width 216 mm 256 mm 303 mm Feed length A5 148 5 mm A5 R B5 A4 B5 182 mm A4 R B5 A4 A4 210 mm A4 R B4 A4 A4 R 297 mm A4 R B4 A3 FOLIO 330 mm FOLIO B4 A3 B4 364 mm B4 B4 A3 A3 420 mm A3 A3 A3 Long original over 421 mm A4 long B4 long A3 long When there is no recording paper which received data can be printed on one sheet of the maximum paper loaded in the equipment is selected and data is divided and printed on two or more sheets without reduction Refer to 1 4 P 2 13 Table 3 Selection of recording paper Long original 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS Table 2 Selection of recording paper For NAD model Recording paper range LT R LT LG COMP LD ST Priority of 1 LT R LT LG COMP LD ST R recording paper 2 LT LT R COMP LD COMP LT R 3 LG LD LD 2 LT R 1 LT R 1 LT 3 4 A4 R 16 23 LT R LT 13 LT 12 LG 5 4
45. ions Secure RX Secure RX allows reception to memory to secure Originals during unattended periods The user can select a specific time period and all day 24 hour operation on selected days The feature can be activated and deactivated by using a 4 digit security code Memory transmission Allows you to dial the remote party while scanning the original in memory The original page data is cleared as the sending of each page is completed Therefore the memory is utilized effectively for transmissions A maximum of 100 jobs of memory transmission are possible Public fax box An original can be reserved in image memory to be polled by remote stations multiple times One of its merits is that any remote station even one with a non TOSHIBA facsimile can poll such originals without a password Program continuous polling By designating the starting interval time and day of week an endless polling can be set Once set polling receptions are repeated at the same time on the designated day of week Sub address communication The GD 1220 1221 support communication applications using sub address SUB SEP PWD com mands conforming to ITU T Sub address communication is possible by keypad dialing one touch key dialing and abbreviated dialing using the sub address settings in Comm Options e Security communication For transmissions the facsimile checks if the telephone number of the remote party s facsimile CSI matches the number diale
46. l count limit will not be cleared but stored for a pro grammed period of time Such originals can be recovered to be transmitted again F code mailbox relay box communication Bulletin board F code mailbox transmissions using ITU T standard protocol is possible Permitting confidential communications with any other similarity equipped facsimile made by TOSHIBA or some other company 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 7 08 08 1 4 Accessories and Parts The following accessories and parts come with the FAX unit Accessory Qty Operator s manual for facsimile function except TW EU 1 pc Modular cord 2 m 1 pc Unpacking instruction 1 set Parts Qty Fax unit 1 pc SG3 label 1 pc FCC Part 68 label U S A NA only 1 pc IC label Canada NA only 1 pc DTS label EU EU only 1 pc Teleprompt label New Zealand AU only 1 pc Notice to users label New Zealand AU only 1 pc Screw 2 pcs Apply the each label to the specified positions following the Unpacking Setup Instruction GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved SPECIFICATIONS AND OUTLINE OF SYSTEM 1 5 Options Extends the FAX functions when the FAX unit is installed Option Function Model Platen Cover Holds originals KA 1640PC Automatic Document Feeder ADF Feeds originals MR 2017
47. m clearance of 80 cm 32 on the left 80 cm 32 on the right and 10 cm 47 on the rear The equipment shall be installed near the socket outlet and shall be easily accessible Be sure to fix and plug in the power cable securely after the installation so that no one trips over it General Precautions at Service Be sure to turn the power OFF and unplug the power cable during service except for the service should be done with the power turned ON Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a year or more A fire may occur when dust lies on this area When the parts are disassembled reassembly is the reverse of disassembly unless otherwise noted in this manual or other related documents Be careful not to install small parts such as Screws washers pins E rings star washers in the wrong places Basically the equipment should not be operated with any parts removed or disassembled The PC board must be stored in an anti electrostatic bag and handled carefully using a wristband since the ICs on it may be damaged due to static electricity Caution Before using the wristband unplug the power cable of the equipment and make sure that there are no charged objects which are not insulated in the vicinity Avoid expose to laser beam during service This equipment uses a laser diode Be sure not to expose your eyes to the laser beam Do not insert reflecting parts or tools such as a sc
48. n detection time T1 175 ms and CNG off detection time T2 350 ms have elapsed and the T1 period has been turned on and then the T2 period off CNG is determined to have occurred once 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL 4 ELECTRICAL CIRCUITS 4 1 Configuration GD 1220 1221 FAX board Speaker V 34 MODEM Analog SW NCU board MAIN board Fig 4 1 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 1 08 08 4 2 Description of Circuits 4 2 1 Configuration This section describes the function of each circuit The NCU board consists of the transformer relay analog switch and other peripheral devices It con trols switching of the line path generates the dial pulses detects the line current and ring signal and monitors the line NA TW models NCU board Line current detection circuit Line 1 51 Analog switch Dial pulse signal detection circuit generation circuit External telephone 6 11 DC consumption circuit FAX board
49. n with the binary 3 4 3 2 3 V 8 V 34 communication sequence 3 12 3 3 FAX Automatic Switching icio coii i acid 552 cad sewed rete bad ou eae 3 25 3 3 1 General 3 25 3 922 TE L mOde rrr 3 25 9 3 3 EAXTIOdG en ect eoa aeta ee 3 25 4 ELECTRICAL CIRCUITS eee 4 1 441 Conflg ratlori metre di ne man 4 1 4 2 Desctiption of Circuits accen 4 2 4 2 1 Configuration ee mti eee ea Rte Reese Terra ERR 4 2 4 2 2 Line path switching control 4 4 4 2 3 Dial pulse generation 4 4 6 4 2 4 Line current detection 4 8 4 2 5 ClI detection cIECUIt uertit oreet Dade dT entend 4 10 4 2 6 Line monitor circuit e Id aee neque de mea 4 12 4 3 PG Boards d oed tette AE eure 4 15 5 INSTAEEATIQON erre recon 5 1 5 11 Explanation to the USers ua unit eR Te RE ul ire 5 1 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 CONTENTS GD 1220 1221
50. nals and connects it to each control circuit The CML relay is switched according to the CML1 signal output from the ASIC on the MAIN board When the CML 1 signal goes HIGH Q4 comes on to turn ON the CML relay The analog switch 1 3 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 1 5 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 H Line 1 CML Relay Control Signal RLY3 IC3 ATT3DB1 H Line 1 Attenuator Control Signal IC3 RLADJ11 21 H Line 1 Return Loss Adjustment Signal IC5 Values in are GD 1221 in case that the descriptions vary between GD 1220 and GD 1221 2006 2008 TOSHIBA TEC CORPORATION All rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 5 08 08 4 2 3 Dial pulse generation circuit NA TW models NCU board FAX board MAIN board CML relay Line External telephone Ring signal detection circuit Fig 4 6 The dial pulse generation circuit consists of the diode bridge DB1 photocoupler PC1 the ASIC 1 23
51. on the MAIN board and the other peripheral devices It generates the dial pulses in the FAX transmission and dialing to the outside The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side To generate the dial pulse the ASIC makes the LD1 signal become HIGH to turn ON Q53 This allows the photo coupler to come on and the current flows through the DB1 to send the dial pulses to the line Signal Name Type Active Description Destination LD1 H Line 1 Dial Pulse Generation Signal Q53 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION rights reserved ELECTRICAL CIRCUITS EU AU AS C models NCU board MAIN board 12V RLY3 CML relay AP 1 0 Line 4 External telephone Line path switching circuit Ring signal detection circuit Fig 4 7 dial pulse generation circuit consists of the photocoupler IC 1 the ASIC 1C23 on the MAIN board and the other peripheral devices It generates the dial pulses in the FAX transmission and dialing to the outside The ASIC makes the CML1 signal become HIGH to connect the line to the MODEM side To generate the dial pulses the ASIC makes the LD1 signal become HIGH to turn ON Q6 This allows the photocou pler to come on and the current flows through the line for sending a dial attempt
52. ransmission method Manual transmission Monitor dialing Direct dialing with the digital keys Phone book dialing Delayed transmission Multi transmission Redialing Recording paper size Recording paper size How to change the recording paper size Automatic manual reception How to switch the automatic and manual reception How the machine works and how to operate it when a FAX is received in these modes Other functions Memory reception with the power kept ON How to set the power saving mode Polling Polling operation How to operate the polling reception and transmission How the multi polling reception works and how to operate it How to register addresses How to register new addresses in the Phone Book How to correct or erase the contents of the Phone Book Group registration in the phone book for the multi transmission or multi polling How to output lists How to output the TRANSMISSION JOURNAL and RECEPTION JOURNAL 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 INSTALLATION GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved INSTALLATION TOSHIBA TOSHIBA TEC CORPORATION 2 17 2 HIGASHIGOTANDA SHINAGAWA KU TOKYO 141 8664 JAPAN
53. re built in allowing the operator to enter the destination name sender name at the time of the original transmission This cover sheet also allows image data such as a company logo to be included Account code By entering a different account code for each destination at the time of transmission account codes will identify when for whom and to whom a particular facsimile message was sent Department code Permits assigning 99 department codes to control access and track activity These codes are set up beforehand and must be used to access machine functions Separator page function GD 1220 1221 have the feature which divide print jobs received original using separator page Also the customer can program the specified paper drawer for this function List output This allows the operator to print data stored in the memory reservation list preset dial number lists function list communication journal transmission report etc Power saver mode This feature turns off virtually all power to minimize power consumption Only the sub MPU remains operation sensing for ringing signals original insertion or activation of the ENERGY SAVER key Sleep mode Reduces power consumption by cutting off power for the fuser during periods when printing is not expected The fast warm up time ensures the printer section will be ready before a full page of image data can be received Recovery transmission Originals that have gone through the redia
54. re short circuited and their functions become ineffective they may result in fatal accidents such as burnout Do not allow a short circuit or do not use the parts not recommended by Toshiba TEC Corporation 4 Cautionary Labels During servicing be sure to check the rating plate and cautionary labels such as Unplug the power cable during service CAUTION HOT CAUTION HIGH VOLTAGE CAUTION LASER etc to see if there is any dirt on their surface and if they are properly stuck to the equipment 5 Disposal of the Equipment Supplies Packing Materials Used Batteries and IC RAMs Regarding the recovery and disposal of the equipment supplies packing materials used batter ies and IC RAMs including lithium batteries follow the relevant local regulations or rules Caution Dispose of used batteries and IC RAMs including lithium batteries according to this manual Attention Se d barrasser de batteries et IC RAMs us s y compris les batteries en lithium selon ce manuel Vorsicht Entsorgung der gebrauchten Batterien und IC RAMs inclusive der Lithium Batterie nach diesem Handbuch CONTENTS 1 SPECIFICATIONS AND OUTLINE OF SYSTEM 22 1 1 1 4 5 1 1 1527 Specifications uf a 1 2 LEeat res ees ODD eM ELM M E i 1 5 1 4 Accessories and Parts itur Ro ital lacte d e E abis CU E a i qe 1
55. rewdriver on the laser beam path Remove all reflecting metals such as watches rings etc before starting service Be sure not to touch high temperature sections such as the exposure lamp fuser unit damp heater and areas around them Be sure not to touch high voltage sections such as the chargers developer high voltage trans former and power supply unit Especially the board of these components should not be touched since the electric charge may remain in the capacitors etc on them even after the power is turned OFF Make sure that the equipment will not operate before touching potentially dangerous places e g rotating operating sections such as gears belts pulleys fans and laser beam exit of the laser optical unit Becareful when removing the covers since there might be the parts with very sharp edges underneath When servicing the equipment with the power turned ON be sure not to touch live sections and rotating operating sections Avoid exposing your eyes to laser beam Use designated jigs and tools Use recommended measuring instruments or equivalents Return the equipment to the original state and check the operation when the service is finished Important Service Parts for Safety The breaker door switch fuse thermostat thermofuse thermistor batteries IC RAMs including lithium batteries etc are particularly important for safety Be sure to handle install them properly If these parts a
56. s are different on those sheets the received document is rotated by 270 degrees before being printed The rotation function is performed after discard extra reduction or dividing processing The rotation function is valid for received documents of A4 LT A5 and ST R sizes 6 Printing with no recording paper When recording paper has run out during printing printing takes place on another printable recording paper starting from the next page if available However if recording paper has run out in the middle of divided print reprinting takes place on another recording paper starting from the first one of the divided pages The same operation is done when recording paper of the same size is set in a different paper drawer For the selection order of recording paper refer to P 2 12 Table 2 Selection of recording paper 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 LSU RELATED FUNCTIONS 7 RTI When printing a received document with the RTI setting ON RTI is printed on each page but RTI is printed on the first page only in the case of divided print ON or OFF of RTI is possible by means of the user setting Default OFF RTI is created for the LT or A4 R width When printing RTI on A5 B5 and ST R smaller than those sheets the information to be printed is reduced to a printable length LT size or up Received MM DD YY 17 56 From 888 To TOSHIBA Page 001 Fig 2 5 A5 B5 ST R Received
57. smission from A to FIF Format of F Aand C Format b4 b2 b3 b4 bs bg bz bg F 0 1 1 1 1 1 1 0 A 1 1 1 1 1 1 1 1 C 1 1 0 0 0 0 0 2006 2008 TOSHIBA TEC CORPORATION rights reserved When this frame is the last frame X 1 GD 1220 1221 DIALING COMMUNICATION CONTROL format of each binary signal Format bg b bo bs b4 b3 b2 by X X X Binary signal NSF NSC NSS CSI CIG TSI DIS DTC DCS SUB SEP PWD Rx PWD Tx CFR FTT EOM MPS EOP MCF RTN PIP PIN PRI EOM PRI MPS PRI EOP DCN RR RNR PPR PPS CTC CTR EOR ERR RTP CRP 1 for the station which received DIS X X 0 for the station which received a response signal to DIS 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DIALING COMMUNICATION CONTROL GD 1220 1221 3 10 4 Training The training is performed in the binary procedure to surely transmit the image signals Training signal The training signal is transmitted following the DCS signal at the modem speed specified by the DCS signal Responding to this training signal the receiving side adjusts the auto equalizer Format of the training signal 14 4 Kbps 12 Kbps Segment 1 Segmen
58. t 2 Segment 3 Segment 4 Alternation Equalizer Chain store adjustment information Scrambled binary data 1 TCF of ABAB pattern sequence 106 msec 1240 msec 27 msec 20 msec 1393 msec 9600 bps 7200 bps Segment 1 Segment 2 Segment 3 Segment 4 Repeating 2 state V 29 No signal signal Scrambled data 1 TCF Binary Hexa or octal 20 msec 53 msec 160 msec 20 msec 4 253 msec 4800 bps 2400 bps Segment 1Segment 2 Segment Segment 4 Segment 5 Conti Non V 27ter modulated No signal inversion 2 phase pattern Scrambled data 1 TCF carrier Binary Binary Hexa or octal 4 800 bps 923 msec 2 400 bps 1158 msec TCF signal An error may occur in the image data if the training is not performed correctly The transmitting side sends a TCF signal and checks if any error occurs in image data before the image data communication to follow When the receiving side detects an error in the TCF signal it transmits an FTT signal to the transmitting side to request the retraining When there is no error the receiv ing side transmits a CFR signal The TCF signal transmits all zeros for 1 5 seconds at the same modem speed as that for the training signal 2006 2008 TOSHIBA TEC CORPORATION All rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL 3 2 3 V 8 V 34 communication sequence 1 Outline V 8 is performed as a startup procedure to swi
59. tch to V 34 V 8 can connect an existing facsimile machine to the equipment using a data modem or other V series modems The V 34 modem has a modem circuit previously recommended allowing it to be also connected to the existing modems while they are upper compatible New technologies such as the pre emphasis technology 1 and the probing technology 2 are fully used The pre emphasis technology 1 not only speeds up the modulation but also gains the S N ratio The probing technology examines the line characteristics and optimizes the modem for the line condition Therefore not only do these technologies speed up the transmis sion momentarily but also the average speed of the process during the data transmission is increased For V 8 and the pre post FAX transmission for V 34 the procedure is speeded up by the full duplex communication Following 14 types of the image transmission speed are available 3 33 6 kbps 31 2 kbps 28 8 kbps 26 4 kbps 24 0 kbps 21 6 kbps 19 2 kbps 16 8 kbps 14 4 kbps 12 0 kbps 9 6 kbps 7 2 kbps 4 8 kbps 2 4 kbps The modulating speed baud rate 4 can be selected from 2 400 3 000 3 200 symbol sec man datory or 2 743 2 800 3 429 symbol sec option The data rate can be set more accurately than the conventional modem 1 Asignalis sent while raising the output level in the high frequency band in which the noise is relatively loud 2 Tone signal called Probing Tone is sent for the receiver to examine th
60. te the communication The transmission rate is 1 200 bps Transmitter Signal name Abbreviation Function Remarks Sh signal Sh Short training Sh signal Sh ALT signal ALT E sequence E End of procedure signal PPS EOP The transmission of one page is completed Flag flags Maintains the synchroniza tion Disconnection signal DCN Informs to disconnect the line Receiver Signal name Abbreviation Function Remarks Sh signal Sh Short training Sh signal Sh ALT signal ALT E sequence E Flag flags Maintains the synchroniza tion Message confirmation MCF Indicates that the image sig nal is received normally and the receiver is ready to receive the next page 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 DIALING COMMUNICATION CONTROL 3 Example of protocol The signals shaded in the following figure are the most important signals in the procedure Late start The receiver cannot detect CM signal while it is sending the ANSam signal Therefore it sends a DIS signal to inform the availability of V 8 support The transmitter sends a Cl signal that causes the receiver to send another ANSam signal which makes the receiver move to the V 8 procedure Transmitter Receiver Line closed DIS cannot be recognized GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved DI
61. ues in are GD 1221 in case that the descriptions vary between GD 1220 and GD 1221 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved ELECTRICAL CIRCUITS 4 14 08 08 4 3 PC Boards 1 PWA F FAX 635 GD 1220 PWB F FAX 635N 6LE62645000 C61 100 10 IC1 NC7SZ08 EYECLK EYESYNC I P GW gt E 100 10 HO ve CN264 858 C69 At C15 1 1 1 18 T4vucog 10 50 C11 75 08 I LEAD FREE IC11 74VHCI25 2006 2008 TOSHIBA TEC CORPORATION rights reserved GD 1220 1221 ELECTRICAL CIRCUITS 4 15 08 08 2 678 GD 1221 PWB F FAX 678N 6LH27210000 1C1 NC75208 5 R16 CTI 30 10 16 C5010 16 C100 01 92 eat FA 088 C61 100 10
62. ving station has received and accepted the CTC EC mode EOR End of Retransmission Informs that the transmitting station has completed the correction of the error frame data binary signal of the previous ECM block ECM mode ERR Response for End Retransmission Replies to EOR and requests to transmit the image signal of the next ECM block ECM mode RTP Retrain Positive Informs that the message has been received completely and that the subsequent message can be continued after receiving the synchronization signal and CFR signal CRP Command Repeat Requests to resend all the commands including optional frames because the preceding command has been received incorrectly GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION All rights reserved DIALING COMMUNICATION CONTROL 3 Frame structure of binary signals Each binary signal frame is comprised of the following sequence and fields However some binary signals do not have the FIF field inserted F F A FIF FCS F Preample F Flag sequence Indicates the start or end of a frame Also establishes the frame synchronization A Address field Informs the address C Control field Informs if this frame is the last one in this procedure FCF FAX control field Informs the type of the binary signal FIF FAX information field Informs FAX information such as the functions FCS Frame check sequence Checks if there was any error in the tran
63. witched according to the CML1 signal output from the ASIC on the MAIN board When the CML1 signal goes HIGH Q51 comes on to turn ON the CML relay The analog switch is switched according to the CML1 signal and ATT3DB1 signal When the CML 1 sig nal or ATT3DB1 signal goes HIGH the analog switch is turned ON Turning ON the CML relay and analog switch allow the MODEM to be connected to the line Signal Name Type Active Description Destination CML1 H Line 1 CML Relay Control Signal RLY2 51 ATT3DB1 H Line 1 Attenuator Control Signal IC51 Values in are GD 1221 in case that the descriptions vary between GD 1220 and GD 1221 GD 1220 1221 2006 2008 TOSHIBA TEC CORPORATION AII rights reserved ELECTRICAL CIRCUITS 4 4 08 08 EU AU AS C models NCU board 1 5 Analog switch 0 Line 4 External telephone 28 29 1 TXOUT1 25 26 1012 ica 32 2 RXIN1 129 Fig 4 5 The line path switching control circuit consists of the CML relay RLY3 and analog switch 1 3 IC5 on the NCU board the ASIC IC23 on the MAIN board and the other peripheral devices It changes the path for the FAX send receive sig

Garmin GDU 370 GPS Receiver User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents