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Содержание 610

Страница 1: ...VI FACSIMILE TRANSCEIVER OKIFAX 610 660 Field Service Handbook DRAFT VERSION 01 ISSUED TTIC ISSUED DATE 21 OCT 1998...

Страница 2: ...3 3 4 CHECK OF CONTENTS 3 4 3 5 INSTALLATION OF ATTACHMENTS 3 5 3 6 AC CORD CONNECTION 3 7 3 7 SYSTEM TEST 3 8 3 7 1 ROM VERSION 3 8 3 7 2 PRINT TEST 1 3 8 3 7 3 PRINT TEST 2 3 8 3 7 4 CHECK SUM DISP...

Страница 3: ...NORMAL ON STARTION BUT KEY FAILED 660 Only 5 5 5 4 TIME DISPLAY ABNORMAL 5 6 5 5 1 IT WORKS PRESSING KEY BUT SPEAKER REMAINS MUTE 610 Only 5 7 5 5 1 IT WORKS PRESSING KEY BUT SPEAKER REMAINS MUTE 660...

Страница 4: ...T 6 5 6 3 5 PAPER TRAY 6 5 6 3 6 OPERATION PANEL ASSEMBLY 6 7 6 3 7 BACK COVER ASSEMBLY 6 8 6 3 8 BOTTOM COVER ASSEMBLY 6 9 6 3 9 FRAME UNIT 6 10 6 3 10 UPPER FRAME ASSEMBLY 6 11 6 3 11 LOWER FRAME AS...

Страница 5: ...SHEET 4 11 8 9 8 1 5 SWITCH AND SENSORS SHEET 5 11 8 9 8 1 6 BATTERY AND POWER DOWN RESET SHEET 6 11 8 10 8 1 7 FAX MODEM AND AUDIO CIRCUIT SHEET 7 11 8 10 8 1 8 MEMORY SHEET 8 10 8 14 8 1 9 NETWORK...

Страница 6: ...CHAPTER 1 GENERAL INFORMATION...

Страница 7: ...ission speed 8 sec ITU T No 1 sample document for memory transmission 12 sec ITU T No 1 sample document for feeder transmission 9 Minimum scan line time for sending 10 ms 10 Minimum scan line time for...

Страница 8: ...e TEL receive mode TEL FAX automatic switchover TAD FAX automatic switchover 4 Last number redial 5 Telephone directory 6 PHOTO mode 7 Voice request 8 Multi copy 9 Polling transmission 10 Polling rece...

Страница 9: ...auto redial 15 Series pick up 16 Detect dial tone 17 Line equalizer 18 ECM mode 19 Make ratio 20 Parallel pick up 21 Modem speed 22 Tx level 23 Rx printer mode 24 Satellite delay 25 Set CNG Tx time 2...

Страница 10: ...Figure 1 4 1 OKIFAX 610 General Appearance Figure 1 4 2 OKIFAX 660 General Appearance...

Страница 11: ...Figure 1 4 3 OKIFAX 610 Operation Panel...

Страница 12: ...Figure 1 4 4 OKIFAX 660 Operation Panel...

Страница 13: ...CHAPTER 2 SPECIFICATION...

Страница 14: ...table in 1 dBm steps Half duplex ITU T Rec T 30 1 One dimensional coding scheme Modified Huffman MH 2 Two dimensional coding scheme Modified Read MR 3 Three dimensional coding scheme Modified Modified...

Страница 15: ...ted 1 Width 2 Length 3 Thickness 8 sec for memory transmission 12 sec for feeder transmission Note This is the time for Phase C transmission in 3 85 line mm and 14 4K bps speed in MMR code transmissio...

Страница 16: ...al 8 dots mm Vertical 1 COPY mode 3 85 7 70 15 40 line mm selectable 2 STD mode 3 85 line mm 3 FINE mode 7 70 line mm 4 SUPER FINE mode 15 40 line mm 5 PHOTO mode 7 70 line mm Automatic background sen...

Страница 17: ...4...

Страница 18: ...A4 size 2 Printing color Black 3 XERO 4024 or L Paper 80 g 208 mm Thermal transfer Maximum allowable skew of the recording paper or 3 mm over A4 length paper Max 3 mm skew over a document of A4 length...

Страница 19: ...ows LCD displays HEAT ALARM Generates an alarm tone Transmits a DCN signal in response to an EOP EOM MPS signal from the remote station and disconnects the line The heat alarm state can be automatical...

Страница 20: ...o 80 Non condensing a Temperature 20 to 60 for 48 hours b Relative humidity 20 to 85 Non condensing 1 Width Approx 306 mm 2 Depth Approx 320 mm 3 High Approx 232 mm Approx 4 5 Kg Excluding accessories...

Страница 21: ...an one of 300 papers fed The separation rubber will not require replacement for at least 15 000 documents fed The life of any single element on the printing head will be greater than 3 10 5 cycles One...

Страница 22: ...CHAPTER 3 INSTALLATIONS...

Страница 23: ...The following flowchart outlines the installation procedure See 3 2 See 3 3 See 3 4 See 3 5 See 3 6 See 3 7 Site selection Unpacking Check of contents Installation of attachments Ac cord connection Se...

Страница 24: ...Should have enough space in front of FAX machine to allow recording paper and documents to be stacked Shall not have any large electrical noise producing machines nearby 3 2 UNPACKING Procedure 1 Open...

Страница 25: ...ACSIMILE UNIT 0482347500 2 LEFT PAD 0482348521 8 PE BAG B 9554224901 3 USER GUIDE 0482346500 9 HANDLE 0482313070 4 PE BAG C 9553101400 10 CARTON 0482346523 5 PAPER TRAY 0482346300 11 ID TAG 0482347600...

Страница 26: ...essories from the cardboard box check the contents according to the following list Item No Contents name Q ty Remark 1 FAX machine 1 2 Handset and spring cord 1 3 Ribbon roll W Gear left R right bushi...

Страница 27: ...nd release the upper frame push the Catch 1 2 at the both sides of Upper Frame to release the Upper Frame b Insert the White Spindle Cap and Gear Wheel into the core of the ribbon roll from both sides...

Страница 28: ...d spigot from the front roll as these will need to be inserted in the new print roll c Remove the hook from its housing and use it to remove the old print ribbon by hooking it under the cog 1 and lift...

Страница 29: ...class 1 AC input 220 240V 10 50 60 Hz 2 Insert the mains lead into the power inlet on the back panel of the machine 3 Plug the mains lead into a single wall outlet with a correct power supply which i...

Страница 30: ...P SCROLL DOWN SCROLL UP STOP 3 7 3 START CHECKSUM DISPLAY 60 sec to standby 3 7 4 STANDBY STANDBY CHECKSUM XX 60 sec to standby START STOP SCROLL DOWN SCROLL UP STOP 3 7 5 START LED TEST 60 sec to sta...

Страница 31: ...standby 3 7 7 STANDBY STANDBY START SCROLL DOWN SCROLL UP STOP 3 7 8 DISPLAY 96 ASCII CHARACTERS CONTINUOUSLY STOP LCD TEST END 60 sec to standby START PLEASE ENTER KEY 60 sec to standby SENSOR TEST 6...

Страница 32: ...DBY SCROLL DOWN SCROLL UP STOP ENABLE FOR USER 60 sec to standby START PUT WHITE PAPER 60 sec to standby STANDBY START 3 7 11 STOP DISABLE FOR USER 60 sec to standby SCROLL DOWN SCROLL UP START STOP D...

Страница 33: ...3 7 14 STANDBY SCROLL DOWN SCROLL UP STOP START STANDBY START 3 7 15 STOP START SCROLL KEY TO CHANGE DIGIT INTERVAL 1 MIN 60 sec to standby REDIAL TIMES 1 60 sec to standby 3 7 15 3 7 15 RESOL DEFAUL...

Страница 34: ...ALIZER 60 sec to standby 3 7 17 STANDBY SCROLL DOWN SCROLL UP STOP SERIES PICK UP 60 sec to standby 3 7 15 STANDBY SCROLL DOWN SCROLL UP STOP SERIES ON 60 sec to standby START STANDBY START 3 7 16 STO...

Страница 35: ...EL PICK UP 60 sec to standby 3 7 20 STANDBY SCROLL DOWN SCROLL UP STOP ECM MODE 60 sec to standby 3 7 18 STANDBY SCROLL DOWN SCROLL UP STOP ECM ON 60 sec to standby START STANDBY START 3 7 19 STOP SCR...

Страница 36: ...START STANDBY START 3 7 22 STOP START 2400 BPS 60 sec to standby SCROLL KEY TO CHANGE DIGIT TX LEVEL 60 sec to standby 3 7 22 STANDBY SCROLL DOWN SCROLL UP STOP START STANDBY START 3 7 23 STOP TX LEVE...

Страница 37: ...ORY CLEAR ON 60 sec to standby START START STOP SCROLL DOWN SCROLL UP STOP MEMORY CLEAR OFF 60 sec to standby PTT PATTERN 60 sec to standby 1 TX SPEED TEST 60 sec to standby 3 7 29 2 2 TX TONE TEST 60...

Страница 38: ...tandby DIAL NUM 5 60 sec to standby DTMF 0 9 STOP A START TX SCROLL DOWN SCROLL UP STOP SCROLL DOWN SCROLL UP STOP SCROLL DOWN SCROLL UP STOP SCROLL DOWN SCROLL UP STOP SEND DTMF 60 sec to standby SCR...

Страница 39: ...2 TX 2100 HZ 60 sec to standby RING BACK TONE 60 sec to standby TX WARNING TONE 60 sec to standby START STOP START TX START STOP START TX TX RING BACK TONE 60 sec to standby TX TONE 1100 HZ 60 sec to...

Страница 40: ...18 PRT SERVICE SET 60 sec to standby 3 7 30 STANDBY SCROLL DOWN SCROLL UP STOP START 3 7 1 3 7 1 PRINTING 3 7 1...

Страница 41: ...CHAPTER 4 MAINTENANCE...

Страница 42: ...his rubber Figure 4 1 2 Figure 4 1 1 5 Thermal Print head T P H Check it for stains of paper dust etc Clean it with ethyl alcohol if necessary Figure 4 1 4 6 Contact Image Scanner C I S Check it for s...

Страница 43: ...Figure 4 1 1 Figure 4 1 2 A D F Roller A D F Rubber Pad Contact Image Scanner I S Roller Feed Roller A P F Rubber Pad A P F Roller Paper Sensor A P F Sensor...

Страница 44: ...er to the original position confirm that its plastic bushings of the platen properly set into the grooves of the frame unit and turn the bushings to back then make sure the pin point of tab is tightly...

Страница 45: ...CHAPTER 5 TROUBLESHOOTING...

Страница 46: ...5 1 LCD FAILS TO DISPLAY AFTER POWER ON Check if DC power supply normal Check if Key board plug loose Yes Check if AC power supply normal Yes No Eliminate AC power fault No Eliminate power supply fau...

Страница 47: ...k of XFC U1 133 is 19MHz Check if the signals DATA ADDR BUS CS RD WR of U11 are normal Yes Check if U11 ROM inserted normal Yes No No Check U1 2 4 5 Insert anew Check if XFC Reset signal normal Yes No...

Страница 48: ...eck if Clock of XFC U1 133 is 20MHz Check if the signals DATA ADDR BUS CS RD WR of U11 are normal Yes Check if U11 ROM inserted normal Yes No No Check U1 2 4 5 Insert anew Check if XFC Reset signal no...

Страница 49: ...is signal SYSCLK of U24 70 SYSCLK no Check U24 69 Check if there is output signal in U1 57 Check if there is output signal in STP of U1 38 to 47 Yes Yes Check soldering of U1 Check if there is output...

Страница 50: ...k if there is output signal in U1 57 Check if there is output signal in STP of U1 38 to 47 Yes Yes Check soldering of U1 Check if there is output signal in U1 144 Yes No Check soldering of U1 No No Ch...

Страница 51: ...6 5 4 TIME DISPLAY ABNORMAL POWER ON POWER OFF Check X1 C6 C7 R8 Yes Check BT2 4 0V Yes Check D18 4 5V Check D22 3V Yes Replace battery No Check BT2 Yes Solder anew D18 No No...

Страница 52: ...Press AUTO key and check if there is signal in U1 119 Check U25 5 if there is signal output Check Speaker Yes Check U25 3 if there is signal output Yes Solder anew U1 Check J11 on keyboard if Connecto...

Страница 53: ...Press AUTO key and check if there is signal in U1 119 Check U23 5 if there is signal output Check Speaker Yes Check U23 3 if there is signal output Yes Solder anew U1 Check J11 on keyboard if Connecto...

Страница 54: ...NG Check if D1 D2 R2 R3 R4 U2 normal No Solder anew D1 D2 R2 R3 R4 U2 Check if U1 2 is High 4 5V Check soldering state of R57 D17 Yes Check if U2 4 4 4V U2 5 5V Yes Yes No Check if R55 R56 C35 Q4 D15...

Страница 55: ...ORDING PAPER IS LOADED Check if J8 connector loose No Check J8 3 it should be Low while paper loaded Check U1 91 Yes Check if there is broken wire or incorrect connection of PAPER SENSOR Yes Yes No So...

Страница 56: ...SOR check if there is broken wire in paper jam sensor assembly No Check U1 90 Low Check circuit when paper loaded J9 3 is Low Yes When out of paper J9 3 is High Yes Yes No Check Sensor No Check R45 So...

Страница 57: ...roperly No Are the signals to driving IC U7 1 2 3 4 normal Check IC U7 stepping motor Yes Check if 24V voltage normal Yes Yes No Power supply circuit defective No Check soldering of U1 Check if motor...

Страница 58: ...r loose No Check if the control signal of U6 is normal Check if ZD3 are normal Yes Check if 24V Yes Yes No Check power supply No Check U1 115 116 117 118 Insert anew power supply is normal Check stepp...

Страница 59: ...Bee in Speaker on document feeding No Check J11 13 is Low 0V Check DOC Sensor Circuit Yes Yes No Check Sensor Check if J11 13 Low while Sensor is triggered Check C I S motor driving circuit Check Cabl...

Страница 60: ...15 5 12 OVER FEEDING DOCUMENT UNTIL DOC JAM Check A D F Sensor circuit Check U1 86 Check if J11 14 is Low while Sensor is triggered Yes Yes No Check if sensor connector loose...

Страница 61: ...16 5 13 TOO LIGHT OR TOO THICK Check if D9 D10 connected inversely No Check U1 67 68 Check U3 7 white level 2V Yes Yes No Check U3 Solder anew...

Страница 62: ...12V No Check if Q1 C E Pin conductive 0 V Check if R36 R37 normal Yes Q1 B pin 0 7V Yes Yes Check U1 82 R35 Check Q1 see 5 13 Check if Q2 C E Pin conductive 12 V Yes Solder anew R36 R37 Check POWER 12...

Страница 63: ...k if J1 connector falls out Yes Yes Check if Q3 D 24 V Check if T P H control signals of CLK LATCH DATA of J1 13 14 15 Jumpering Yes Check if T P H strobe signal of J1 9 10 11 12 normal Yes Replace T...

Страница 64: ...J1 9 10 11 12 has signals to four strobes during printing No Replace T P H Insert anew Yes Check if U1 33 to 37 48 64 soldered actually Yes Yes No Solder anew No Check other pins of U1 Check if J1 con...

Страница 65: ...D TO RECORD A MESSAGE 660 only Monitor speaker normal No Check if J10 13 Low Check U8 38 Yes Check NCU connection Yes Yes No Insert anew No Check U18 Check if U7 7 when making sound to Handset Yes Che...

Страница 66: ...normal Yes Receiving circuit defective Yes Whther there is 19 MHz lock in U24 70 Is U24 67 High Check U24 44 signal Yes Is U24 54 active Yes Mode defective No Check if U22 defective No U2 14 defectiv...

Страница 67: ...e normal Yes Receiving circuit defective Yes Whther there is 25 MHz lock in U8 76 Is U8 47 High Check U8 29 signal Yes Is U8 52 active Yes Mode defective No Check if U10 defective No U2 14 defective N...

Страница 68: ...s 0 volt in U23 6 To receive anew and check transmission circuit Check if there is signal in U23 7 Yes Check Modem U24 D0 D7 RS0 RS4 CS RD WR Yes Check Modem power supply U24 70 19MHz clock U6 defecti...

Страница 69: ...is 0 volt in U9 2 To receive anew and check transmission circuit Check if there is signal in U9 1 Yes Check Modem U8 D0 D7 RS0 RS4 CS RD WR Yes Check Modem power supply U8 76 25MHz clock U6 defective...

Страница 70: ...1 defective Check if there is voltage on pins 1 2 of PH1 or K7 Check if there is Low voltage on pin 4 of J2 Yes Is there voltage on the common point of K2 and PH2 2 Yes Yes No Check if Main Board Yes...

Страница 71: ...inging R6 defective Is there AC voltage on PH2 2 and PH2 1 Check if PH2 3 PH2 4 are able to transfer between High and Low Yes Is there AC voltage on the common point of PH 2 2 and ZD3 Yes Yes No Check...

Страница 72: ...tage Is there signal on C4 R4 joint relative to ground Yes Measure the primary side of T1 to see if there is voltage Yes Yes No Check if there is signal on M BD J10 10 J10 11 Yes No ZD1 ZD2 or C4 defe...

Страница 73: ...BOARD AREA 2 IMAGE ELONGATION 1 ADF ROLLER IS LOCKED 2 I S PRESSURE IS NOT ENOUGH OR NON UNIFORM 3 I S PLATEN IS STAINED 1 REPLACE CLUTCH SPRING 2 ADJUST I S HINGE OR REPLACE NEW ONE 3 CLEAN I S PLATE...

Страница 74: ...29 6 DOC NO FEEDING 1 DEFECTIVE DOCUMENT SENSOR 2 A D F ROLLER IS LOCKED 3 DEFECTIVE I S MOTOR 1 REPLACE DOC SENSOR 2 REPLACE A D F CLUTCH SPRING 3 REPLACE I S MOTOR...

Страница 75: ...AGE OR HORIZONTAL BLACK LINE GENERATED 1 PAPER JAM 2 T P H PRESSURE TOO STRONG 3 PULLED SIDE RIBBON TOO TIGHT 1 REMOVE JAM PAPER AND ADJUST RIBBON 2 REPLACE T P H COIL SPRING 3 REPLACE RIBBON TENSION...

Страница 76: ...AR WHEEL 2 CLEAR OFF THE FALLEN PARTS FROM COMPARTMENT 16 RIBBON CREASE 1 REAR TENSION BAR IS LOST 2 RIBBON FRICTION PAD IS LOST 1 REPLACE THE REAR TENSION BAR IN IT S POSITION 2 REPLACE THE FRICTION...

Страница 77: ...CHAPTER 6 MECHANICAL DISASSEMBLY AND REASSEMBLY...

Страница 78: ...ar gloves that are likely to generate static electricity 4 Do not place printed circuit boards directly on the equipment or on the floor 6 1 2 TOOLS Table 6 1 2 shows the tools required for replacemen...

Страница 79: ...6 2 GENERAL MECHANICAL STRUCTURE The general mechanical structure of the FAX machine is shown in Figure 6 2 Figure 6 2...

Страница 80: ...SSEMBLY DOCUMENT SENSOR ASSEMBLY RIGHT CATCH LEFT CATCH A P F SENSOR LOWER GUIDE ASSEMBLY UPPER ASSEMBLY A P F ROLLER ASSEMBLY GEAR TRAIN OF I S AND A D F RIGHT TORSION SPRING LEFT TORSION A D F ROLLE...

Страница 81: ...Front of machine means the face of operation panel ii The Left and Right mean the left and right hand side facing the front of machine iii The directions of Clockwise and Counterclockwise are defined...

Страница 82: ...2 pieces of M2 3 6 tapping screws and then take out Hook Switch Assembly and hook iii Loosen 6 pieces of M3 8 tapping screws on Upper Cover Assembly and then take out Operation Panel Sub Assembly Figu...

Страница 83: ...take out backing plate separation plate 5 A D F Sensor Arm Invert the Back Cover Assembly and push one side of sensor arm to another side Then take out sensor arm 6 I S Image Sensor Platen Assembly i...

Страница 84: ...ent 4 With a hand holds the take up ribbon roll With another hand push the pull side ribbon roll green retainer is included towards left and take its right up a little bit Take the ribbon roll out its...

Страница 85: ...then take out 2 pieces of document guide having a little angle with paper cover Figure 6 8 6 3 7 Bottom Cover Assembly 1 Face the scanning face of I S and loosen 2 pieces of M3 10 tapping screws on th...

Страница 86: ...th hinges of the assembly a bit and rotates the assembly clockwise until the right hinge can be separated with its spindle on the upper frame remove the assembly from right slantwise iii Loosen 4 piec...

Страница 87: ...Feeding Sensor i Put the upper frame assembly the track of document towards table on table ii The sensor is assembled at the center of upper frame Release its snap in fingers by a straight screwdrive...

Страница 88: ...ar Train of I S and A D F I S Stepping motor i The gear train is assembled on one side of the upper frame that the 35 mm stepping motor is included Loosen all the M2 6 5 tapping screws on the outside...

Страница 89: ...and left torsion spring from upper frame and Separate each other Note i The shorter side and longer side of the left torsion spring should touch the upper frame and left catch after assembled respect...

Страница 90: ...ger coil of the helical compression spring should touch the lower frame after assembled 5 Gear Train of Take up Ribbon and T P H Stepping Motor i Invert the lower frame to face the T P H stepping moto...

Страница 91: ...e up ribbon assembly can be taken out of its compartment 5 Hold on the take up ribbon roll with one hand With another hand push the pull side ribbon roll green retainer is included agornet left side t...

Страница 92: ...le and open the operation panel 2 With thumbs push the Right and left catches that have 1 and 2 legend to be mould in located on both sides of the upper frame assembly to rotate clockwise With forefin...

Страница 93: ...CHAPTER 7 MECHANICAL ASSEMBLY DRAWING AND PARTS LIST...

Страница 94: ...7 4 OKIFAX 660 FAXSIMILE UNIT 4 7 5 OKIFAX 610 OPERATION PANEL ASM 5 7 6 OKIFAX 660 OPERATION PANEL ASM 6 7 7 OKIFAX 610 MAIN BODY UNIT 7 7 8 OKIFAX 660 MAIN BODY UNIT 8 7 9 BACK COVER ASM 9 7 10 UPP...

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Страница 108: ...CHAPTER 8 CIRCUIT DESCRIPTION...

Страница 109: ...canner Control Six programmable control and timing signals supports CIS scanner interface An internal 6 bit flash A D converter is provided Video processing performs shading correction pixel by pixel...

Страница 110: ...select Battery powered CAS 2 0 N 110 112 O 2XTT DRAM column address select Battery powered DWRn 109 O 3XTT DRAM writ Battery powered Prime Power Reset Logic and Test DEBUGn 129 I HU Ecternal non mask...

Страница 111: ...ect GPIO16 IRQ8 76 I O H 1XC Programmable GPIO Line or active high interrupt GPIO17 IRQ5 n 75 I O H 1XC Programmable GPIO Line or active low interrupt GPIO18 IRQ10n 74 I O H 1XC Programmable GPIO Line...

Страница 112: ......

Страница 113: ...1 0 5 7 0 VADG Video A D ground 0 1 0 1 0 5 0 5 VDD Digital power 4 5 5 25 0 5 7 0 GND Digital ground 0 0 0 0 VDRAM Battery power for DRAM 2 25 5 25 0 5 7 0 VBAT Battery power 2 25 5 25 0 5 7 0 Output...

Страница 114: ...the falling edge of the next TSTCLK Some memory and peripheral devices require extended bus cycle which is added with wait states Wait states can be created with programmable control for external chip...

Страница 115: ...A Access with 1 Wait State 0 Wait State tDMD tWSD t SD t AD t SD t RGD t DMD t SD t SD t DHR t DH t DHR t DS tDDI t DDW t DH t DH Figure 8 1 1 3 Table 8 1 1 4 External Bus Signal Timing Parameters Par...

Страница 116: ...bus of DRAM are physically connected to address bit A0 to A9 of XFC Row addresses are gated onto the DRAM address bus first followed by column addresses The following operation modes are supported byt...

Страница 117: ...printer are shifted in sequence and the strobe on time is dependent on the temperature of printer Therefore optical density of printed copy can keep constant quality 8 1 3 Scanner Controller Sheet 3...

Страница 118: ...hniques are employed during playback to allow DTMF and tone detection The pin assignments for 100 pin PQFP are listed in table 8 1 7 1 and its digital interface characteristics is listed in table 8 1...

Страница 119: ...nalog transmit level attenutation IC 41 NC No connection 42 NC No connection 43 OVA Connect to analog ov graund 44 TXOUT O Connect to smoothing filter input 45 RXIN I Connect to anti aliasinf filter o...

Страница 120: ...digital ground 81 OVD2 Connect to digital ground 82 DCLK IRQ2 Transmit and receive data clock OA 83 EYESYNC Serial eye pattern strobe 9600Hz OA 84 EYECLKX Serial eye pattern clock 85 EYECLK Serial eye...

Страница 121: ...nput Leakage Current IIN A VIN 0 to 5V Type IB 2 5 Vcc 5 25V Output High Voltage VOH V Type OA and OB 3 5 ILOAD 100 A Type OD Vcc ILOAD 0 mA Output Low Voltage VOL V Types OA and OC 0 4 ILOAD 1 6 mA T...

Страница 122: ...8 Memory Sheet 8 10 There are 2 chips of 4 Mega bits DRAM mounted on board SRAM of 32K bytes stores user and system data DRAM is backed up by only battery BT1 SRAM is backed up by both BT1 and BT2 EP...

Страница 123: ...canner Control Six programmable control and timing signals supports CIS scanner interface An internal 6 bit flash A D converter is provided Video processing performs shading correction pixel by pixel...

Страница 124: ...select Battery powered CAS 2 0 N 110 112 O 2XTT DRAM column address select Battery powered DWRn 109 O 3XTT DRAM writ Battery powered Prime Power Reset Logic and Test DEBUGn 129 I HU Ecternal non mask...

Страница 125: ...ct GPIO16 IRQ8 76 I O H 1XC Programmable GPIO Line or active high interrupt GPIO17 IRQ5 n 75 I O H 1XC Programmable GPIO Line or active low interrupt GPIO18 IRQ10n 74 I O H 1XC Programmable GPIO Line...

Страница 126: ......

Страница 127: ...0 1 0 5 7 0 VADG Video A D GND 0 1 0 1 0 5 0 5 VDD Digital Power 4 5 5 25 0 5 7 0 GND Digital Ground 0 0 0 0 VDRAM Battery Power for DRAM 2 25 5 25 0 5 7 0 VBAT Battery Power for RTC SRAM 2 25 5 25 0...

Страница 128: ...and ends at the falling edge of the next TSTCLK Some memory and peripheral devices require extended bus cycle which is added with wait states Wait states can be created with programmable control for e...

Страница 129: ...1 Wait State 0 Wait State tDMD t WSD t SD t AD t SD t RGD t DMD t SD t SD t DHR t DH t DHR t DS t DDI t DDW t DH t DH Figure 8 2 1 3 Table 8 2 1 4 External Bus Signal Timing Parameters Parameter Symb...

Страница 130: ...RAM are physically connected to address bit A0 to A9 of XFC Row addresses are gated onto the DRAM address bus first followed by column addresses The following operation modes are supported bytes acces...

Страница 131: ...printer are shifted in sequence and the strobe on time is dependent on the temperature of printer Therefore optical density of printed copy can keep constant quality 8 2 3 Scanner Controller Sheet 3...

Страница 132: ...is listed in table 8 1 7 3 Table 8 2 7 1 Modem RF144V24 Pin Functions Pin No Signal Label I O Type Interface Pin No Signal Label I O Type Interface 1 RS4 IA Host Parallel Interface 23 TMODE MI MDP RMO...

Страница 133: ...DD2 PWR VCC 86 IA1CLK MI MDP TSTROBE 19 59 GPI6 IA General Purpose Input 87 SA1CLK MI MDP TRESET 20 60 GPI7 IA General Purpose Input Line Interface 88 SR1IO MI MDP TMODE 23 RMODE 18 61 GPO7 OB General...

Страница 134: ...LOAD 1 6 mA Types OB 0 4 ILOAD 0 8 mA Types OD 0 75 ILOAD 15 mA Output Leakage Current ILO ADC VIN 0 4 to VCC 1 Type OA and OB 10 Capacitor Load CL pF Type IA and ID 10 Type IB 20 Capacitor Drive CD p...

Страница 135: ...ga bits DRAM mounted on board SRAM of 32K bytes stores user and system data DRAM is backed up by only battery BT1 SRAM is backed up by both BT1 and BT2 EPROM of 128K bits is installed on socket for va...

Страница 136: ...Drivers and LEDs Three LEDs are driven by control LEDCTL via transistor Q1 and strobe by OP05 OP06 and OP07 3 Key Switch Matrix OP00 to OP07 strobe each key matrix column in sequence and OPI0 to OPI3...

Страница 137: ...ne or pulse mode then CPU controls the signal and send the phone number out i Choice the tone mode CPU controls the TX mode and send the tone signal ii Choice the pulse mode CPU controls the relay K1...

Страница 138: ...o phase A and send CNG K1 K2 switches to N O In this time it comes into FAX Loop 6 Telephone Detection It includes PH7 or K7 J4 and handset i The PH7 or K7 is a AC DC input current detector When we pi...

Страница 139: ...0 60 ms l Pin12 MODE connect to pin20 R53 D14 by T P switch IC1 will work on l pulse dial LD 10pps 33 66 ms TEMP MF with tone on first key entry l Pin12 MODE connect to pin18 R52 D13 by T P switch IC1...

Страница 140: ...ential input of the microphone amplifier Please note the proper connection of the M1 and M2 inputs in respect to the positive and negative side of the microphone Receive i Receive gain setting receive...

Страница 141: ...Y1 3 5 Does any signal output from IC1 pin5 3 6 Does any signal input IC1 pin2 3 7 Does any signal input IC1 pin1 4 Speech sending problem 4 1 is MIC fail 4 2 Does any signal input IC1 pin23 4 3 Is th...

Страница 142: ...to 5 25V At factory the 5V output is set from 4 9V to 5 1V at max load and the accuracy of other outputs are checked to be within the specified accuracy range 24 V peak load duration 10ms duty 0 7 la...

Страница 143: ...conditions are removed d Leakage current The leakage current is less than 1A while measuring at nominal line and max load e AC noise A pulse width lus polarity square wave 500 volts input phase 0 90 1...

Страница 144: ...b Connectors TB1 AC input Meet IEC 320 CEE 22 standard TB2 DC output JAEIL G 7P S3T2 E TB3 DC output JAEIL S 8P S2T2 EF TB4 24Viso 5Viso DC output JAEIL S 8P S2T2 EF c DC output pin assignment PIN TB...

Страница 145: ...oltage after rectifying is approx 1 4 times of AC input RMS value d Switch parts and action principle The switch adopts MOS FET the witching feature is excellent in both high speed high frequency The...

Страница 146: ...d with the result of working properly but the power supply unit is still no action it could be no action of touching off at IC2 please replace a new IC2 4 If the 5V has output boltage but one of the o...

Страница 147: ...V CHAPTER 9 FAX CIRCUIT DIAGRAM...

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