6. Observe the original lead dress, especially near sharp edges, AC, and high voltage power supplies. Always inspect for pinched, out-of- place, or frayed wiring. Do not change the spacing between components and the printed circuit board. SF700AT...
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There could be a danger of explosion should not be opened, crushed, or burned for and subsequent operator injury and/or disposal. equipment damage if incorrectly installed. 2. Be sure to replace the battery with the same or equivalent type recommended by the manufacturer. SF700AT...
B4/A4 x 30 m, core 12.7 mm diametre Effective Recording Width 252 mm Recording Method Thermal recording with solid state Thermal Printing Head Resolution Horizontal 203 pels/in (8 dots/mm) Vertical Super Fine 3.85 lines/mm Fine 7.7 lines/mm Standard 15.4 lines/mm SF700AT...
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10 memory dial (power on) Power Requirement Check Power Label attached near the power outlet °F (10 °C to 35 °C) Temperature 50 to 95 Relative Humidity 20 to 80 % RH (Non-Condensing) Dimension 305 X 116 X 243 mm Weight 3.9 Kg SF700AT...
Select the number of rings the machine allows before it answers a call in automatic receiving Choose YES to turn on this feature. The LCD mode. display asks to enter the telephone number you want to be transferred. Choose NO to turn off the feature. SF700AT...
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0 and -15 dBm in 1 dB steps using the control fail to recognize a double digit code. panel keypad. Accuracy is + 0 /-3 dBm. Enter the characters you want to use, then press START. SF700AT...
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This feature allows you to change the recall time. BUSY TONE DETECTION LEVEL While checking tone in ANS/FAX mode, If any signal which is great than set level is detected for a few seconds the machine will disconnect the line. SF700AT...
Erases contents of RAM. When memory is cleared, DTMF TEST the machine returns to default settings. The machine tests its DTMF (Dual Tone Multi Frequency). When you press any key on the keypad, including and #, you will hear the corresponding key tone. SF700AT...
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HELP LIST RECEPTION JOURNAL This report illustrates the machine's basic functions and commands. Use as a quick reference Shows information about faxes received. guide. TELEPHONE NUMBER LIST Lists all numbers stored in the machine's one- touch and speed dialling memory. SF700AT...
POST-MESSAGE ERROR: problem occurred during phase D of session LINE ERROR: machine cannot connect or has lost connection with the remote machine Additional messages, not shown above, will appear in the transmission and reception journals printed in service mode. SF700AT...
2. Remove the the six screws. 3. Remove the Main Chassis. Figure 4-1 4-2 Main PBA and LIU PBA 1. Loosen the six screws fastening the base. 2. Unplug the connector from the PBAs 3. Remove the MAIN PBA and LIU PBA. Figure 4-2 SF700AT...
1. Loosen the six screws fastening the base. 2. Remove the Sensor PBA and Power. Figure 4-3 4-4 Top Cover 1. Open the operation panel and RX-Cover. Loosen the three screws fastening the top cover. Lift the top cover carefully. Figure 4-4 SF700AT...
1. Loosen the four screws fastening the rear cover. 2. Remove the Rear Cover. Figure 4-5 4-6 RX Cover 1. Hold the wire spring as shown in figure 4-6. 1. Remove the bushing. 3. Lift RX cover assembly, while pulling in the direction of arrow. Figure 4-6 SF700AT...
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1. Hold the bushing as shown in figure 4-7. Remove the roller assembly from the bushing with screwdriver. 2. Lift roller assembly, while pulling in the direction of arrow. Figure 4-7 4-8 CIS 1. Lift the CIS assembly. 2. Unplug the connector. Figure 4-8 SF700AT...
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1. Loosen the three screws. 2. Lift the OPE assembly. Figure 4-9 4-10 Cutter Assembly 1. Loosen the two screws fastening the Base. 2. Remove the cover cutter. 3. Loosen the two screws fastening the Base. 4. Lift the cutter. Figure 4-10 SF700AT...
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Disassembly and Reassembly 4-11 TX, RX Motor 1. Loosen the two screws fastening the Base. (Rx motor assÕy) TX Motor assÕy RX Motor assÕy 2. Loosen the two screws fastening the Base. (Tx motor assÕy) Figure 4-11 SF700AT...
PDAT. STB0 - STB3 enable TPH printing in four sequential intervals. Print Print PrintLine (MSINT Cary-out) Sh D Sh C Sh D Sh C Shift Data Shift Clk STB0 STB1 2 DotClk Delays 2 DotClk Delays STB2 5 DotClk Delays STB3 Figure 5-4: Printer Timing SF700AT...
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Figure 5-5: Thermal ADC Block Diagram THD1 Rt (T) Thermal printhead thermistor Ground Approximate values of R28 and R29 can be calculated from the following formulas: R28=0.25*[R29*rT(T1)]/[R29+Rt(T1)] R29=[15Rt(T1)*Rt(T2)]/[Rt(T1)-16Rt(T2)] where T1=minimum temperature, T2=maximum temperature. Figure 5-6: THDI/Thermal Printer Head Connection Circuit SF700AT...
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Receiver/Transmitter (SART) controls serial data transmission between the main circuit and the operator panel. CPU Bus SclkCtrlLo SclkCtrlHi SartlRQ Band Gen (8x) SCLK Tx/Rx Control IRQ control SARTCmd RxShift Reg (SARTData) RxBuffer (SARTData) TxShift Reg Internal Register Figure 5-7: SART Block Diagram SF700AT...
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Inversion Table Enabled (ShTblEnb) Buffer IF (DMA Channel 1) Scan Data Shading Enabled (ShadeEnb) Bi-level B4 to A4 Edge Enhancement Enabled (EdgeEnhEnb) Reduction Dynamic Background and Contrast Control Enabled (DBCCEnb) Primary Paths Secondary (optional) Paths Figure 5-8: Scanner Image Processing Block Diagram SF700AT...
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The CIS driver clock frequency is 500 kHz. A low clock and taking B4 paper size into consideration. duty cycle of 50% is used to lengthen the charging 500 KHZ (L:DUTY 50 %) CLOCK 1 LINE Figure 5-10: CIS Driver Clock Timing SF700AT...
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RX Motor Phase A OFF GP01/PM1 RX Motor Phase B ON RX Motor Phase B OFF GP02.PM2 /PMA RX Motor Phase -A ON RX Motor Phase -A OFF GP03/PM3 /PMB RX Motor Phase -B ON (ONLY 0) RX Motor Phase -B OFF SF700AT...
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The key click consists of an 800 Hz tone of 20 ms receiving, and printing functions utilising a two 24 duration. volt motor. These motor has a winding resistance of 120 ohm. /RESET drives MODEM /POIR and serves to reset the MODEM. /MIRQ is the MODEM interrupt signal. SF700AT...
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BATTERY POWER RESET configuration, and is connected to PFC through a 10k pull-up resistor. When battery power (V ) is applied to IFC the first time, V current results in /BATRST going 'low', causing a reset to occur. 5-10 SF700AT...
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GP 13 N.C. GP 16 /PJAM (ONLY I) PAPER JAM GP 17 (ONLY I) GP 19 DIAL_MODE_IN DP DIALING MODE (ONLY I) DTMF DIALING MODE GP 20 N.C. (ONLY I) GP 21 N.C. (ONLY I) Table 5-14: I/O Port SF700AT 5-11...
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CODEC 1 are stored in the voice memory (U21) through the DSPG DRAM controller. +5V is supplied for the voice memory through VBT when power is on. When power is off, +5V is supplied from the battery. 9V Lithum battery is used for backup battery. 5-12 SF700AT...
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¥ BD2: telephone line polarity matching (This Gain is amplified by U16: 4051 circuit) ¥ VAR2, 3: 82V voltage regulator ¥ R44, R45: Vgs bias voltage regulator ¥ C39: voltage stabilization ¥ R46: DC resistance adjustment. ¥ K2: dial pulse generator SF700AT 5-13...
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¥ Pulse M/B ratio is set by U2 pin 6. =33:66, and V =40:60. ¥ Optical coupler U6 inhibits manual dial when +5V is applied to pin 1 by carthing Q1 base, driving U2 pin 5 high. This prohibits manual dialling during FAX auto-dial. 5-14 SF700AT...
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¥ LCD drive signals are U1 P20~P27, P33~P35 pins. ¥ Machine status LED drive signals are U1 P00~P02, P04~P06 pins. Main mic Input 16 x 1 lines Circuit MICOM Z-8601 Key Matrix UART Reset Connector LEDs Figure 5-13 OPE Block Diagram SF700AT 5-15...
See 6-5 Call machine from Copy OK ? OGM Recording OGM play back ? another phone See 6-6 See 6-7 Manual ICM Recoding ? Auto Answer ? RX OK ? operation ? See 6-8 See 6-9 See 6-10 See 6-11 SF700AT...
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Troubleshooting Hook off using Speaker Dial tone OK ? TX OK ? handset phone call See 6-12 See 6-13 Speakerphone operating ? See 6-14 SF700AT...
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2. Plug in machine good ? supply Measure on the Measure on the +5 V ? CONN board OPE board Check harness OK ? Replace harness Replace OPE board +5 V ? and LCD module Check harness OK ? Replace harness SF700AT...
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LCD module Replace main board 6-3. System Not Initialized Check system reset Start (U1 Pin 131) in Logic 'H' ? Replace OPE board main board Check Vcc from P5-7 to P5-8 ≥ 4.5 V ? See 6-2 Replace main board SF700AT...
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LOADING' loading main board displayed ? Replace Doc Sensor board Document fed ? Replace power +24 V OK ? supply Check motor pulse (P1- 11, 13, 15, 17) in main board OK ? Replace main board Replace motor ass'y SF700AT...
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Document fed ? Press START key Start feeder See 6-4 Check +5V, -12V CIS LED lights OK ? from P5-8, 10 to P5-7, 9 OK ? Replace power Check CIS from supply P4-9 Replace CIS Low ? Replace main board SF700AT...
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Load document in Document fed ? Press START key Start feeder See 6-4 Check motor pulse (P1- CIS LED on ? Copy produced ? 11, 13, 15, 17) in main board See 6-5 Replace motor OK ? ass'y Replace main board SF700AT...
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Troubleshooting Copy quality Copy all black ? Copy all white ? OK ? TPH test OK ? Replace TPH Copy quality Replace main Replace CIS OK ? board SF700AT...
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Speaker On Check Check Replace main Mic signal from signal from board CN3-6, 8? U16-pin4 Check Check signal CONN B'd Replace Mic. signal from from P22-1, 2? U16 pin 4? Check signal from Replace OPE CN14-1, 2? board Replace speaker SF700AT...
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Troubleshooting 6-8. ICM Not Recording Start Call machine Recording Check LIU board from other phone mode ? OK ? ICM Playback ? Replace main Replace LIU board board 6-10 SF700AT...
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Troubleshooting 6-9. Malfunction in Auto Answer Start Call machine from Auto answer ? another phone Check signal on U7 pin3 in LIU board Check Hook switch Replace main OK ? board Replace Hook switch board SF700AT 6-11...
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6-10. Malfunction in Manual Receiving Start Lift handset from fax then press START Machine goes on-line ? Check hook switch in CONN board OK ? Check LIU board OK ? Replace LIU board Replace CONN Replace main board board 6-12 SF700AT...
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Start Call fax machine Auto answer ? Receive data ? See 6-9 Check Tx/Rx signal Check telephone OK ? from CN13-2, CN13- line 4 in main board Test customer Signal OK ? Replace LIU board Replace main board SF700AT 6-13...
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Troubleshooting 6-12. No Dial Tone Lift handset from Start Dial tone OK ? Replace LIU board fax machine Dial tone OK ? Replace CONN board Dial tone OK ? Replace main board 6-14 SF700AT...
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Troubleshooting 6-13. Malfunction in Transmission Start Load document in Call receiving Document fed ? Press START key feeder machine See 6-4 Start transmitting ? Replace LIU board OK ? Replace main board SF700AT 6-15...
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Troubleshooting 6-14. Speakerphone Does Not Work Start Speaker on Dial tone OK ? See 6-12 Check Tx/Rx signal from CN14-1, 2 Replace Main LCD display ? board 6-16 SF700AT...
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Troubleshooting Speaker On Check Check Replace main Mic signal from signal from board CN3-8 CN14-1, 2 Check Check Replace Mic. signal from OPE board CN14-1, 2 Replace OPE board Replace speaker SF700AT 6-17...