SERVICE MANUAL FACSIMILE GD-1210/1250/1270/1160/1260 File No.
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GENERAL PRECAUTIONS REGARDING THE SERVICE FOR GD-1210/1250/1270/1160/1260 The installation and service shall be done by a qualified service technician. 1) Transportation/Installation - When transporting/installing the equipment, employ four persons and be sure to hold the positions as shown in the figure. The equipment is quite heavy and weighs approximately 120 kg (264.55 lb.), therefore pay full attention when handling it.
- 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 minimum clearance of 80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) on the rear. The equipment shall be installed near the socket outlet and shall be accessible.
- 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 BEAM”, etc. to see if there is any dirt on their surface and if they are properly stuck to the equipment.
CONTENTS GD-1210/1250/1270/1160/1260 1. SPECIFICATIONS AND OUTLINE OF SYSTEM ......................................................... 1-1 1.1 1.2 1.3 1.4 1.5 1.6 FAX Options ........................................................................................................................ 1-1 Specifications....................................................................................................................... 1-2 Features ...............................................................
4.2 Description of Circuits.......................................................................................................... 4-3 4.2.1 Configuration ............................................................................................................ 4-3 4.2.2 Line path switching control circuit............................................................................. 4-5 4.2.3 Dial pulse generation circuit ..................................................................................
1. 1.1 SPECIFICATIONS AND OUTLINE OF SYSTEM 1 FAX Options Equipments can be used as a FAX by installing the FAX unit. Some options can be added when the FAX unit is installed or to extend the FAX functions ( "1.5 Options"). P. 1-8 Be sure to use the FAX unit and the 2nd line for the FAX unit only in the following combinations.
1.2 Specifications 1) Main system - Type Desktop type transceiver - Operation Transmission Reception Manual/Automatic Manual/Automatic 2) Scanner [ ]: 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] Semi-U-Fine:8 x 15.4 lines/mm [15.
Original size A B LG LD 355.6 431.8 350.1 426.
4) Recording paper - Recording method Electrophotographic recording method by LSU (Laser Scanning Unit) - Horizontal printing density 24 lines/mm (96 lines/mm with the smoothing processing) [23.1 lines/mm (92.4 lines/mm with the smoothing processing)] - Vertical printing density 23.1 lines/mm (24 lines/mm with the smoothing processing) - Recording paper size and the effective printing area Unit: mm (inch) Paper size Dimension (width x length) Printing area A5-R 148 x 210 143 x 204.
1.3 Features • A3/LD scanning Scans data across A3/LD width and transmits in A3/LD actual size. • High-speed scanning Inputs an A4/LT-size transmitted document in about 0.7 seconds (A4/LT document transmitted widthwise). • High-speed transmission 33.
• Phone Book (3,000 addresses) Up to 3,000 addresses can be registered in the Phone Book using the large LCD control panel. • Multi-address transmission function Data are sent to multiple addresses (400 destinations) in sequence in a single operation.
1.4 Accessories and Parts The following accessories and parts come with the FAX unit: Accessory GD-1210 GD-1250 GD-1270 Operator’s manual (for facsimile function) 1 pc. 1 pc. 1 pc. Modular cord (2 m) 1 pc. 1 pc. 1 pc. Unpacking instruction 1 set 1 set 1 set GD-1210 GD-1250 GD-1270 Fax unit 1 pc. 1 pc. 1 pc. SG3 label 1 pc. 1 pc. 1 pc. FCC Part 68 label (U.S.A.) / IC label (Canada): NA only 1 pc. 1 pc. 1 pc. DTS label (EU): EU only 1 pc. 1 pc. 1 pc.
1.5 Options Extends the FAX functions when the FAX unit is installed.
Option Function e-STUDIO206L/256/306/356/ 456 Reversing Automatic Document Feeder (RADF) Feeds originals MR-3021/3022 Finisher Sorts out documents to be output for the FAX/copying operation MJ-1101 MJ-1106 MJ-1032 MJ-1033 MJ-5004 MJ-5005 MJ-5006 2nd line for FAX unit Adds one extra communication line GD-1260 © 2006 - 2011 TOSHIBA TEC CORPORATION All rights reserved GD-1210/1250/1270/1160/1260 SPECIFICATIONS AND OUTLINE OF SYSTEM 1-9 11/12 1
1.6 1.6.1 System List e-STUDIO2500c/3500c/3510c Reversing Automatic Document Feeder (RADF) MR-3018 Saddle stitch finisher MJ-1030 Bridge Kit KN-3500 Finisher MJ-1101 FAX unit GD-1210NA/AU/AS/ EU/C/TW/KR 2nd Line for FAX unit GD-1160 NA/EU-N/C/TW Drawer Module MY-1031/C Paper Feed Pedestal (PFP) KD-1018/C Large Capacity Feeder (LCF) KD-1019 A4/LT/C Fig.
1.6.2 e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C Reversing Automatic Document Feeder (RADF) MR-3018 Saddle stitch finisher MJ-1030 Bridge Kit KN-4520 Finisher MJ-1101 FAX unit GD-1250NA/AU/AS/ EU/C/TW Hanging finisher MJ-1031 2nd Line for FAX unit GD-1260 NA/AU/EU/C/TW Drawer Module MY-1032/C Paper Feed Pedestal (PFP) KD-1023/C Large Capacity Feeder (LCF) KD-1024 A4/LT/C Fig.
1.6.3 e-STUDIO5520C/6520C/6530C Saddle stitch finisher MJ-1104 FAX unit GD-1270NA/AU/AS/ EU/C/TW Finisher MJ-1103 2nd Line for FAX unit GD-1260 NA/AU/EU/C/TW Fig.
1.6.
1.6.5 e-STUDIO555/655/755/855 Saddle stitch finisher MJ-1028/1029 FAX unit GD-1250NA/EU/AU/AS/C 2nd Line for FAX unit GD-1260 NA/EU-N/AU/C Finisher MJ-1027 Fig.
1.6.6 e-STUDIO2040C/2540C/3040C/3540C/4540C 1 e-STUDIO3540C/4540C e-STUDIO2040C/2540C /3040C Reversing Automatic Reversing Automatic Document Feeder (RADF) Document Feeder (RADF) MR-3022 MR-3021 Saddle stitch finisher MJ-1106 Bridge Kit KN-4530 Finisher MJ-1101 FAX unit GD-1250NA/AU/AS/ EU/C/TW Hanging finisher MJ-1031 2nd Line for FAX unit GD-1260 NA/AU/EU/C/TW Drawer Module MY-1035/C Paper Feed Pedestal (PFP) KD-1027/C Large Capacity Feeder (LCF) KD-1028 A4/LT/C Fig.
1.6.7 e-STUDIO5540C/6540C/6550C Saddle stitch finisher MJ-1104 FAX unit GD-1270NA/AU/AS/ EU/C/TW Finisher MJ-1103 2nd Line for FAX unit GD-1260 NA/AU/EU/C/TW Fig.
1.6.8 e-STUDIO556/656/756/856 1 Saddle stitch finisher MJ-1028/1029 FAX unit GD-1250NA/EU/AU/AS/C 2nd Line for FAX unit GD-1260 NA/EU-N/AU/C Finisher MJ-1027 Fig.
1.6.
1.7 1.7.1 Overview 1 e-STUDIO2500c/3500c/3510c Reversing automatic document feeder Power switch Drawers LINE2 connector Paper feed pedestal or Large capacity feeder LINE connector TEL connector Fig. 1-11 Fig.
1.7.2 e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C, eSTUDIO2040C/2540C/3040C/3540C/4540C Reversing automatic document feeder Power switch Drawers LINE2 connector Paper feed pedestal or Large capacity feeder LINE connector TEL connector Fig. 1-13 Fig.
1.7.3 e-STUDIO5520C/6520C/6530C, e-STUDIO5540C/6540C/6550C LINE2 connector LINE connector TEL connector Power switch Drawers Drawers or Large capacity feeder Fig. 1-15 Fig.
1.7.4 e-STUDIO205L/255/305/355/455, e-STUDIO206L/256/306/356/456 Power switch TEL connector LINE connector LINE2 connector Fig. 1-17 Fig.
1.7.5 e-STUDIO555/655/755/855, e-STUDIO556/656/756/856 1 Power switch LINE2 connector LINE connector TEL connector Fig. 1-19 Fig.
1.8 Layout of PC Boards e-STUDIO2500c/3500c/3510c e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C e-STUDIO2040C/2540C/3040C/3540C/4540C e-STUDIO5520C/6520C/6530C e-STUDIO5540C/6540C/6550C FAX PWR FAX MDM NCU NCU FAX MDM FAX PWR e-STUDIO205L/255/305/355/455 e-STUDIO206L/256/306/356/456 MDM e-STUDIO555/655/755/855 e-STUDIO556/656/756/856 FAX MDM FAX FAX PWR FAX PWR NCU NCU Fig.
2. 2.1 LSU-RELATED FUNCTIONS Recording Mode This machine offers various printing modes such as the selection of the applicable recording paper and the recording method, etc. to meet users’ needs. To take full advantage of these features, it is important to understand the concepts of the recording paper selection algorithm and printing algorithm as described in 2. 2.
2.2 Recording Paper Selection Algorithm and Printing Algorithm Before printing the received image, the preset settings are evaluated in the order of the following 1) and 2), and the printing is performed based on the result. 1) Recording paper selection algorithm - Basically, the received image is printed on a sheet of paper of the same size as the original. However, if this size is not available, this algorithm determines on which size of recording paper the output should be made.
Discard / Vertical reduction / Regular size reduction / Split printing flow chart START Recording paper of the same size as the original's available? No Smaller size paper available? No Yes Yes Larger size paper available? Yes 1 No 2 Recording paper run out 1 Regular size reduction function ON? Received image fitsin the effective printing area of the recording paper? Yes Normal (actual size) printing No Image not output No Image not output Image not output Use the short length paper? (S
1) Discard printing - Since the trailing edge area of the original is normally blank, this blank area is cut off to allow the image fit in one sheet in this mode. Image reduction is not performed.
3) Regular size reduction printing (13–517: 1) - When the discard and vertical reduction printing cannot be applied to the received image, and any of the combinations A3 → B4, A3 → A4, B4 → A4, B4 → B5, B4 → A5, A4 → B5, A4 → A5, COMP → LT, COMP → ST, LD → COMP, LD → LG/LT, LD → ST, LT → ST, FOLIO → B5, FOLIO → A5 is satisfied, the regular size reduction printing is performed.
4) Split printing When the recording data do not fit in a recording paper even if vertical reduction is performed for the recording data length (the recording data length is exceeding the effective printing length of the largest recording paper in the drawer installed in the machine), the recording data are divided onto two sheets while vertical reduction is performed. A A× vertical reduction ratio B B × vertical reduction ratio Fig. 2-4 2.2.
2.3 Recording Paper and Function The size of the recording paper on which the received image data are printed is determined according to the presence/absence of the recording paper and the above-mentioned function settings. Relation between the recording paper size and the function settings is described in this section.
2.3.
2.4 Energy Saver Mode The fuser unit, main power and power supply for the control panel can be shut off during a specified period of time such as night time that the machine is in the ready mode, using a weekly timer function of the equipment. When a FAX is received in the Energy Saver Mode, the fuser unit, main power and power supply for the control panel are automatically turned ON. Printing is then started when the machine reaches the specified temperature.
2.5 Memory Reception Basically, the receiving FAX data are once stored in the HDD, then the data are printed out after the reception process is finished. The memory reception is performed until the 1 GB HDD (for transmission and reception) becomes full.
3. DIALING/COMMUNICATION CONTROL 3.1 3.1.1 Circuit Connection and Procedure to Change Mode Dial call-up transmission to a telephone circuit START 3 YES Detecting a calling signal? NO YES Detecting an off-hook signal? NO DC circuit closed After detecting the dial tone, or 3.
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.
3.2 3.2.1 Signaling System Diagram and Signal Forms 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 that the sender is a FAX machine in the automatic calling mode. (*1) *1: This signal can be sent manually.
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 3 Image signal EOM Mode change pos s i ble* MCF NSF•CSI•DIS NSS•TSI•DCS Training TCF CFR Image signal Informing that there is the next page MPS MCF Image signal MCF DCN Fig. 3-1 * Mode change is possible only for the original set manually.
• 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.
• Cancellation during the transmission If the [STOP] button is pressed during the direct transmission or memory input, the display 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 [STOP] button. If the [STOP] button is pressed anytime except during the transmission of the image data, DCN is forcibly sent to terminate the communication.
(2) Binary signals NSF Non-Standard 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.
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 communication (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.
(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 C FCF 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.
• FCF format of each binary signal Binary signal Format b1 b2 b3 b4 b5 b6 b7 b8 NSF 0 0 0 0 0 1 0 0 NSC 1 0 0 0 0 1 0 0 NSS x 1 0 0 0 1 0 0 CSI 0 0 0 0 0 0 1 0 CIG 1 0 0 0 0 0 1 0 TSI x 1 0 0 0 0 1 0 DIS 0 0 0 0 0 0 0 1 DTC 1 0 0 0 0 0 0 1 DCS x 1 0 0 0 0 0 1 SUB x 1 0 0 0 0 1 1 SEP 1 0 0 0 0 1 0 1 PWD(Rx) 1 0 0 0 0 0 1 1 PWD(Tx) x 1 0 0 0 1 0 1 CFR x 0 1 0 0 0 0 1 FTT x
(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.
3.2.3 V.8/V.34 communication sequence 1) Outline - V.8 is performed as a startup procedure to switch 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.
2) Standard procedure Transmitter Receiver Line closed Network interaction (Phase 1) ( P3-15) The available modulation mode is in formed. Each declares that it has V.34 capability. The procedure moves to V.34 in the phase 2. After the information about the modem capability is exchanged, the receiver determines the modulation speed based on the result of reception of the probing signal which was sent by the transmitter.
- 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 automatic calling mode.
- 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 INFO sequence INFO0c Informs the modem capability such as modulating speed and frequency transmission capability (two frequency bands (high and low) used to examine the line characteristics), and requests for adjusting.
- 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 S signal 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 determine the transmission rate. Short training Remarks S is a signal made as the result of phase transition of S.
- Control channel The conventional T.30 procedure is performed. The transmission rate is 1200 bps. Transmitter Signal name Abbreviation Function Flag flags Maintains the synchronization. Non-standard facilities setting NSS Receives an NSF sent from the receiver. It selects the available mode from the received NSF, and specifies the mode for the reception. Transmitting Subscriber ID TSI Informs the telephone number of the transmitter.
- 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 S signal S S signal S PP signal PP Used by the modem of the receiver to train the equalizer.
- Communication end procedure This procedure is to terminate the communication. The transmission rate is 1,200 bps. Transmitter Signal name Abbreviation Function Sh signal Sh 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 synchronization. Disconnection signal DCN Informs to disconnect the line.
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 CI signal that causes the receiver to send another ANSam signal which makes the receiver move to the V.8 procedure. Transmitter Receiver Line closed 3 (DIS cannot be recognized) Fig.
- Multi-page sequence In the same manner as the T.30 procedure, the transmitter sends a PPS-MPS signal after sending the image data. The receiver sends an MCF signal and moves to the next page transmission. Transmitter Receiver Fig.
- 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 3 Fig.
- 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 Fig.
- 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 signal. Then, the image transmission speed is determined according to the MPh sequence sent from the both modems. Transmitter Receiver 3 Fig.
3.3 3.3.1 FAX Automatic Switching 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 operator picks up the handset.
4. 4.1 ELECTRICAL CIRCUITS Configuration e-STUDIO2500c/3500c/3510c GD-1210 GD-1160 Speaker FAX board MDM board CPU Memory Flash ROM CODEC Memory 95C265 1Mbit x 6 4Mbit x 1 MN86064 1Mbit x 4 CODEC MN86064 FAX ASIC V.34 modem TENNESEE FM336PLUS V.34 modem FM336PLUS SYS - FAX I/F harness NCU 1 FAX PWR board NCU 2 Fig.
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C e-STUDIO2040C/2540C/3040C/3540C/4540C e-STUDIO5520C/6520C/6530C e-STUDIO5540C/6540C/6550C e-STUDIO205L/255/305/355/455 e-STUDIO555/655/755/855 e-STUDIO206L/256/306/356/456 e-STUDIO556/656/756/856 GD-1250 / GD-1270 GD-1260 Speaker FAX board MDM board CPU Memory Flash ROM CODEC Memory 95C265 4Mbit x 2 4Mbit x 1 MN86064 4Mbit x 1 CODEC MN86064 FAX ASIC V.34 modem TENNESEE FM336PLUS V.34 modem FM336PLUS SYS - FAX I/F harness NCU 1 NCU 2 Fig.
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 controls switching of the line path, generates the dial pulses, detects the line current and ring signal, and monitors the line. The NCU board is connected to CN501 on the FAX board. It can be also connected optionally to CN502. The description in this section is based on the NCU board for Line 1.
EU/AU/AS/C models NCU board REVA REVB Line current detection circuit CML 1 0 La 1 0 IC5 CN3 Line External telephone LD a2 IC6 T1 TXOUT Analog switch RLY4 Relay RLY3 CML relay ATT3DB IC6 IC3 CN4 Lb Dial pulse generation circuit FAX board IC4 AG RXIN Analog switch b2 IC4 ~ DB1 + - ~ CNG signal detection circuit ANSDET RLADJ1 RLADJ2 DC consumption circuit Ring signal detection circuit CI Fig.
4.2.2 Line path switching control circuit NA/TW models +12V CN10 Q51 RLY2 CML relay 1 Line FAX board R4 4 Lb 9 1 0 3 La 4 1 0 8 10 21 6 6 ATT3DB1 22 ASIC R71 T1 IC51 Analog switch 3 1 0 3 IC53 5 7 3 a2 6 CN11 CML1 IC29 [IC26] AG External telephone 3 R67 AG 12 3 R66 4 b2 R59 9,11 10 CN501 C5 CN9 NCU board 4 IC53 1 2 1 1 1 1 2 0 15 6 IC52 7 2 2 13 1 0 14 TXOUT1 28,29 IC12 [IC9] RXIN1 32 MODEM 4 R68 Ring signal detection circuit Fig.
EU/AU/AS/C models NCU board Line current detection circuit FAX board Q4 CML relay 4 Lb R26 4 Line CN3 3 External telephone 2 La 9 C7 1 5 0 3 1 8 RLY4 0 10 Relay a2 IC5 AG 12 2 R31 3 5 13 TXOUT1 28,29 IC29 [IC26] 24 25 ASIC R29 14 1 C13 15 2 R36 16 1 3 IC6 2 3 IC3 11 10 11 10 1 R32 b2 Analog switch R30 R11 C14 5 IC6 7 IC7 Q9 Ring signal detection circuit 1 22 0 C12 4 8 AG +12V 8 7 Analog switch R28 T1 21 6 CN501 1 CML1 ATT3DB1 RL
4.2.3 Dial pulse generation circuit NA/TW models NCU board C5 FAX board R4 RLY2 +12V CML relay 1 Lb 1 0 9 Q51 8 10 3 3 CML1 21 AG ~ La 1 0 4 DB1 3 - + +5V ~ 4 IC29 [IC26] CN501 3 CN9 Line CN10 4 12 ASIC 1 External telephone CN11 PC1 3 a2 4 b2 3 2 Q53 4 4 LD1 20 4 SG Ring signal detection circuit Fig.
EU/AU/AS/C models FAX board NCU board RLY3 +12V CML relay 4 1 0 5 3 Q4 3 6 1 AG IC1 Line CN3 3 La External telephone 9 1 0 8 10 4 2 4 Q6 2 a2 3 CML1 21 +5V IC29 [IC26] CN501 4 Lb 12 CN4 1 ASIC 4 LD1 20 SG 5 b2 T1 Line path switching circuit AG Ring signal detection circuit Fig. 4-8 The dial pulse generation circuit consists of the photocoupler (IC1), the ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices.
4.2.4 Line current detection circuit NA/TW models NCU board FAX board R87 19 19 REVA1 2 8 2 CN9 PC3 7 C7 20 3 IC29 [IC26] CN501 1 ASIC 20 REVB1 3 6 Line CN10 PC3 4 Lb 4 R86 5 SG 4 Fig. 4-9 The line current detection circuit consists of the photocoupler (PC3), ASIC (IC29 [IC26]) on the FAX 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.
EU/AU/AS/C models NCU board FAX board 1 8 19 19 REVA1 2 Line CN3 4 R26 Lb 2 7 20 IC29 [IC26] CN501 Line current detection IC CN4 IC2 ASIC 20 REVB1 3 Fig. 4-10 The line current detection circuit consists of the line current detection IC (IC2), ASIC (IC29 [IC26]) on the FAX 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.
4.2.5 CI detection circuit NA/TW models NCU board FAX board +12V RLY2 CML relay Lb 1 0 9 ZD1 3 La 1 0 4 5VPS AG 10 ZD3 C1 3 3 Q51 R2 CML1 21 IC29 CN501 Line CN10 4 12 CN9 1 [IC26] ASIC R79 17 3 D52 1 17 CI1 4 4 PC2 2 3 SG Fig. 4-11 4 The CI detection circuit consists of the photocoupler (PC2), ASIC (IC29 [IC26]) on the FAX board and the other peripheral devices to detect a ring signal input from the telephone line.
EU/AU/AS/C models NCU board FAX board RLY3 +12V CML relay 1 0 4 AG 3 C8 CN3 Line Lb 3 La 1 0 9 R4 ZD2 3 3 Q4 5VPS ZD3 CML1 21 IC29 CN501 4 12 CN4 1 [IC26] ASIC 10 D2 1 R34 4 17 PC1 2 17 CI1 4 3 Q5 R35 SG Fig. 4-12 The CI detection circuit consists of the photocoupler (PC1), ASIC (IC29 [IC26]) on the FAX board and other peripheral devices to detect a ring signal input from the telephone line.
4.2.
EU/AU/AS/C models NCU board (Line1) FAX board 28,29[25,26] RLY3 IC12 [IC9] 32[9] MODEM 43 IC45 [IC12] CML relay IC6 4 Lb 4 3 La 9 1 0 CN3 5 8 T1 1 2 1 1 TXOUT1 2 RXIN1 +12V 1 IC6 IC4 AG 5 12 7 R11 1 2 1 0 13 1 0 6 7 2 CN4 IC3 Analog switch CN501 Line 1 0 1 6 3 6 3 15 2 14 14 10 R273 14 Q4 RING CPU IC3 Analog switch 13 11 12 9 10 11 MF-SEL SP-SEL MON 6 15 26 ATT3DB1 22 CML1 21 VOLSEL0 VOLSEL1 VOLSEL2 16 17 18 R272 ASIC 15 AG CN502 R271 NCU
The relation between the signals and sound volume is as follows. Sound volume VOLSEL2 VOLSEL1 VOLSEL0 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 IC9 [IC2] is amplified by the OP amplifier (IC10 [IC1]), then output to the speaker.
4.3 PC Boards 1) PWA-F-FAX-631 (GD-1210) Fig.
2) PWA-F-FAX-670 (GD-1250/1270) 4 Fig.
3) PWA-F-NCU-631 (NAD, TWD, SAD) (GD-1210/GD-1250/GD-1270) Fig. 4-17 4) PWA-F-NCU-631 (MJD, AUD, ASD, CND, KRD) (GD-1210/GD-1250/GD-1270) Fig.
5) PWA-F-NCU-562 (NAD, TWD, SAD) (GD-1160)/PWA-F-NCU-631 (NAD, TWD, SAD) (GD-1260) 4 Fig. 4-19 6) PWA-F-NCU-562 (MJD, AUD, ASD, CND, KRD) (GD-1160)/ PWA-F-NCU-631 (MJD, AUD, ASD, CND, KRD) (GD-1260) Fig.
7) PWA-F-MDM-563 (GD-1160) Fig. 4-21 8) PWA-F-MDM-671 (GD-1260) Fig.
9) PWA-F-FAX-POWER-631 (GD-1210) Fig.
GD-1210/1250/1270/1160/1260 ELECTRICAL CIRCUITS © 2006 - 2011 TOSHIBA TEC CORPORATION All rights reserved 4 - 22
5. INSTALLATION 5.1 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.
GD-1210/1250/1270/1160/1260 INSTALLATION © 2006 - 2011 TOSHIBA TEC CORPORATION All rights reserved 5-2