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KX-FT937LA-B

6.

Explanation of Communication and Compression Technology

a.

G3 Communication Signals (T. 30 Binary Process)

For G3 Facsimile communication, this is the procedure for exchanging control signals between the sending and receiving
machines both before and after transmission of image signals.
Control signals at 300 bps FSK are: 1850 Hz...0, 1650Hz...1.
An example of a binary process in G3 communication is shown below.

Explanation of Signals

Control signals are comprised mainly of 8-bit identification signals and the data signals added to them. Data signals are added
to DIS and DCS signals.
Signal.....DIS (Digital Identification Signal)
Identification Signal Format.....00000001

Function:

Notifies the capacity of the receiving unit. The added data signals are as follows.

Signal.....DCS (Digital Command Signal)
Identification Signal Format.....X1000001

Example

(Some models do not support the following items.):

Bit No.

DIS/DTC

DCS

1

Transmitter --- T.2 operation

2

Receiver --- T.2 operation

Receiver --- T.2 operation

3

T.2 IOC = 176

T.2 IOC = 176

4

Transmitter --- T.3 operation

5

Receiver --- T.3 operation

Receiver --- T.3 operation

6

Reserved for future T.3 operation features

7

Reserved for future T.3 operation features.

8

Reserved for future T.3 operation features.

9

Transmitter --- T.4 operation

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Содержание KX-FT937LA-B

Страница 1: ...ic Communications Co Ltd All rights reserved Unauthorized copying and distribu tion is a violation of law ORDER NO KMF0606979CE Facsimile with Digital Answering System KX FT937LA B B Black Version for Latin America ...

Страница 2: ...10 3 Print Test Pattern 55 11 Service Mode 56 11 1 Programming and Lists 56 11 2 The Example of the Printed List 60 12 Troubleshooting Guide 64 12 1 Troubleshooting summary 64 12 2 Error Messages Display 65 12 3 Error Messages Report 67 12 4 Remote Programming 88 12 5 Troubleshooting Details 91 13 Service Fixture Tools 117 14 Disassembly and Assembly Instructions 118 14 1 Disassembly Flowchart 118...

Страница 3: ...nerable to static electricity When repairing the following precautions will help prevent recurring malfunctions 1 Cover the plastic part s boxes with aluminum foil 2 Ground the soldering irons 3 Use a conductive mat on the worktable 4 Do not touch the IC or LSI pins with bare fingers 1 1 1 Suggested PBF Solder There are several types of PbF solder available commercially While this product is manuf...

Страница 4: ...may be found on different areas of the same P C Board depending on manufacture date 1 2 AC Caution For safety before closing the lower cabinet please make sure of the following precautions 1 The earth lead is fixed with the screw 2 The AC lead is connected properly to power supply unit 3 Wrap the earth lead around the core 5 times 4 Wrap the AC lead around the core 5 times ...

Страница 5: ... which are rotated by the document feed motor A gear rotates the two rollers Be careful not to touch them with your hands especially when the unit is operating 1 3 2 Live Electrical Sections All the electrical sections of the unit supplied with AC power by the AC power cord are live Never disassemble the unit for service with the AC power supply plugged in CAUTION AC voltage is supplied to the pri...

Страница 6: ...es accumulate on a person For instance clothes rubbing together can damage electric elements or change their electrical characteristics In order to prevent static electricity touch a metallic part that is grounded to release the static electricity Never touch the electrical sections such as the power supply unit etc ...

Страница 7: ...gher than its melting point approximately 1100 F 600 C When applying PbF solder to double layered boards please check the component side for excess which may flow onto the opposite side See figure below 2 2 Insulation Resistance Test 1 Unplug the power cord and short the two prongs of the plug with a jumper wire 2 Turn on the power switch 3 Measure the resistance value with an ohmmeter between the...

Страница 8: ...h 208 mm Transmission Time 1 Approx 15 s page Original mode 2 Scanning Density Horizontal 8 pels mm Vertical 3 85 lines mm in standard resolution 7 7 lines mm in fine photo resolution 15 4 lines mm in super fine resolution Photo resolution 64 level Scanner Type Contact Image Sensor Printer Type Thermal printing Data Compression System Modified Huffman MH Modified READ MR Modem Speed 9 600 7 200 4 ...

Страница 9: ...ified recording paper Using other recording paper may affect print quality and or cause exces sive wear to the thermal head 4 2 Translation Lists 4 2 1 Other 4 2 2 Error Message Report Model No Item Specifications Usage KX A106 Standard thermal recording paper 1 216 mm 30 m roll with 25 mm core ...

Страница 10: ...names Caller ID compatible Feature requires a subscription to caller identification ser vices offered by certain local telephone companies for a tee You and your caller s must be in areas that provide caller identification services and compatible equipment must be used by both telephone companies Feature not available when the unit is connected to a PBX system Enhanced Copier Function 64 Level hal...

Страница 11: ...11 KX FT937LA B 6 Technical Descriptions 6 1 Connection Diagram ...

Страница 12: ... is used mainly for the parameter working in the storage area 3 Dynamic RAM IC4 This memory is used mainly for the parameter working in the storage area 4 MODEM IC5 Performs the modulation and the demodulation for FAX communication 5 FLASH MEMORY IC6 Voice Prompt TAM D L DownLoad area 6 Read Section CIS image sensor to read transmitted documents 7 Motor Driver IC7 Drives the transmission motor and...

Страница 13: ...TOR DRIVER CPU OP PANEL I F 256kbit ROM 64Kbit SRAM A D IMAGE PROCESSING RTC SERIAL I F MOTOR I F PRINTER CONTROL VOL TONE 32 768KHz OSC 24MHz MOTOR SPEAKER HANDSET To FLASH PROGRAMMER 24 6V REG REG 5V 6V 24V 6V GATE ARRAY LCD PANEL English 2 lines Tact SW KEY MATRIX SENSOR x2 Doc sensor Read position sensor MESSAGE MIC FLASH 4Mbit TAM Model 3 3V IC6 LINERX CPC MONRX LINE Relay Transformer LINETX ...

Страница 14: ...ND 2 VDDA 3 3 3 3V POWER SOURCE ANALOG 3 3V 3 AIN1 A 3 3V CIS IMAGE SIGNAL INPUT ATN1 4 AIN2 A 3 3V THERMISTOR TEMPERATURE WATCH INPUT 5 AIN3 A 3 3V LINE VOLTAGE DETECTION SIGNAL INPUT DCIN 6 AMON A 3 3V ANALOG SIGNAL MONITOR TERMINAL 7 VSS GND POWER SOURCE GND 8 X32OUT O 3 3V BATT RTC 32 768KHz CONNECTION 9 X32IN I 3 3V BATT RTC 32 768KHz CONNECTION 10 VDD 3 3V B POWER SOURCE 3 3V LITHIUM BATTERY...

Страница 15: ...O 3 3V CPU DATA BUS 2 68 DB4 I O 3 3V CPU DATA BUS 4 69 DB1 I O 3 3V CPU DATA BUS 1 70 DB5 I O 3 3V CPU DATA BUS 5 71 VDD 3 3V POWER SOURCE 3 3V 72 VSS GND POWER SOURCE GND 73 VSS GND POWER SOURCE GND 74 VDD 3 3V POWER SOURCE 3 3V 75 DB0 I O 3 3V CPU DATA BUS 0 76 DB6 I O 3 3V CPU DATA BUS 6 77 DB7 I O 3 3V CPU DATA BUS 7 78 XROMCS O 3 3V FLASH IC2 CHIP SELECT 79 RD O 3 3V CPU RD 80 WR O 3 3V CPU ...

Страница 16: ...3 RM3 IOP O 3 3V MOTOR B PHASE 124 RXE IOP O 3 3V MOTOR ENABLE 125 TMO O 3 3V OUTPUT PORT NC 126 VDD 2 5V POWER SOURCE 2 5V 127 VSS GND POWER SOURCE GND 128 TM1 IOP O 3 3V OUTPUT PORT ACK_EN 129 TM2 IOP O 3 3V OUTPUT PORT CISON 130 TM3 IOP O 3 3V OUTPUT PORT RLY 131 TXE IOP I 3 3V INPUT PORT CUT_POS 132 KSTART O 3 3V OPERATION PANEL CONTROL 133 KLATCH O 3 3V OPERATION PANEL CONTROL 134 KSCLK O 3 3...

Страница 17: ... F600H F7FFH DRAM access window 2 6 3 4 Reset Circuit Watch dog timer The output signal reset from pin 4 of the voltage detect IC IC3 is input to the ASIC IC1 114 pin 1 During a momentary power interruption a positive reset pulse of 50 70 msec is generated and the system is reset com pletely 2 The watch dog timer built in the ASIC IC1 is initialized by the CPU about every 1 5 ms When a watch dog e...

Страница 18: ...power is turned ON power is supplied to RTC IC1 At this time the voltage at pin 14 of RTC IC1 is 3 3V When the power is turned OFF the battery supplies the power to RTC through J1 R80 D503 At that time the voltage at pin 14 of IC1 are about 2 5V When the power is OFF and the 5V and 3 3V voltages decrease the LOW is input to pin 114 of IC1 Pin 111 of IC1 outputs the reset signals Pin 11 of IC1 beco...

Страница 19: ... A In point C according to the voltage output time the thermal head s temperature is detected After the thermal head temperature is converted to voltage in B it is then changed to digital data in the A D converter inside IC1 The CPU decides the strobe width of the thermal head according to this value Therefore this circuit can keep the ther mal head at an even temperature in order to stabilize the...

Страница 20: ...n via routes 4 and 5 they are stored in RAM 4 The white black data stored as above via routes 6 and 8 is input to the P S converter The white black data converted to serial data in the P S converter is input to the Thermal Head via route 9 and is printed out on recording paper Note Fine Reads 3 85 lines mm Super Fine Reads 7 7 lines mm Photo Reads 15 4 lines mm Transmission 1 Same processing as Co...

Страница 21: ...21 KX FT937LA B 6 4 2 Block Diagram ...

Страница 22: ...d upon the shift of dot increment 1728 all the shift registers become filled with data and a latch pulse is emitted to each IC from IC1 pin 118 THLAT With this latch pulse all the contents of the shift registers are latched to the latch registers Thereafter through the addition of strobes from the IC1 pins 103 104 only black dot locations 1 among latched data activates the driver and the current p...

Страница 23: ...23 KX FT937LA B ...

Страница 24: ...nd the transistor Q14 turns on This applies voltage to the light source to light it The contact image sensor is driven by each of the FTG F1 signals output from IC1 and the original image illuminated by the light source undergoes photoelectric conversion to output an analogue image signal AIN The analogue image signal is input to the system ASIC on AIN1 pin 3 of IC1 and converted into 8 bit data b...

Страница 25: ...sing driver IC7 to go ON The motor coil is energized sequentially in 2 phase increments or 1 2 phase increments which causes a 1 step rotation A 1 step rotation is 0 13mm of recording paper or document paper The timing chart is below Stepping Motor Phase Pattern When the motor is OFF gate array IC1 pin 124 becomes a low level and Q2 and Q1 also turns OFF Instead of 24V 5V is suplied through D501 s...

Страница 26: ... Sensor or Switch Name Message Error DIGITAL CN5 Motor Position Sensor CALL SERVICE CN6 Cutter Position Sensor PAPER JAMED ANALOG SW1 Recording Paper Sensor CHECK COVER and OUT OF PAPER SW2 Hook SW SW3 JAM Sensor PAPER JAMED Operation Panel SW39 Document Top Sensor REMOVE DOCUMENT SW38 Document Set Sensor CHECK DOCUMENT ...

Страница 27: ...cording paper the plate is separated from the switch lever and the switch turns off Pin 20 of IC1 becomes a high level When there is recording paper the plate pushes the switch lever and the switch turns ON Pin 20 of IC1 becomes a low level Analog Board Signal IC1 119 Pin Home position Low level Other High level Signal IC1 131 Pin Home position Low level Other High level Signal IC1 20 Pin Paper Lo...

Страница 28: ...tection switch for determining whether the recording paper edge is in the correct position or not If the recording paper cannot be detected correctly at the JAM sensor position even when recording paper is present then JAM is dis played If the recording paper is at the sensor position then the switch turns on the IC1 21pin switches to a high level Analog Board SW Signal ON Hook OFF High level IC1 ...

Страница 29: ... of IC1 5 pin Operation becomes a high level Operation Board 6 5 7 Document Set Sensor SW38 When a document is set the SW becomes ON and input signal of IC1 6 pin Operation becomes a low level When there is no document the SW becomes OFF and the input signal of IC1 6 pin Operation becomes a high level Operation Board Signal IC1 5 pin Out of the Read Position High level At the Read Position Low lev...

Страница 30: ...TT one of the four permanent organizations of the International Telecommunications Union ITU investigates and make recommendations on international standards for facsimiles 2 Definition of Each Group Group I G1 Official A 4 size documents without using formats which reduce the band width of a signal are sent over telephone lines Deter mined in 1968 Transmission for about 6 minutes at a scanning li...

Страница 31: ...Transmission time consists of the following Control time This is time at the start of transmission when the functions at the sending and receiving sides are confirmed the transmission mode is established and transmission and reception are synchronized Image transmission time This is the time required for the transmission of document contents image data In general this time is recorded in the catal...

Страница 32: ... signals added to them Data signals are added to DIS and DCS signals Signal DIS Digital Identification Signal Identification Signal Format 00000001 Function Notifies the capacity of the receiving unit The added data signals are as follows Signal DCS Digital Command Signal Identification Signal Format X1000001 Example Some models do not support the following items Bit No DIS DTC DCS 1 Transmitter T...

Страница 33: ...mum recording length capability A4 297 mm Unlimited A4 297 mm and B4 364 mm Invalid Maximum recording length A4 297 mm Unlimited B4 364 mm Invalid 21 22 23 0 0 0 0 0 1 0 1 0 1 0 0 0 1 1 1 1 0 1 0 1 1 1 1 Minimum scan line time capability of the receiver 20 ms at 3 85 l mm T7 7 T3 85 40 ms at 3 85 l mm T7 7 T3 85 10 ms at 3 85 l mm T7 7 T3 85 5 ms at 3 85 l mm T7 7 T3 85 10 ms at 3 85 l mm T7 7 1 2...

Страница 34: ...ng side opti mizes the automatic equalizer etc according to this signal TCF Training Check Sends 0 continuously for 1 5 seconds at the same speed as the training signal CFR Confirmation to Receive X0100001 Notifies the sending side that TCF has been properly received If TCF is not properly received FTT Failure To Train X0100010 is relayed to the sender The sender then reduces the transmission spee...

Страница 35: ...35 KX FT937LA B b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...

Страница 36: ...NCU section and enters pin 47 of the modem IC5 The signals that enter pin 47 of the modem IC5 are demodulated in the board to digital image signals then placed on the data bus In this case the image signals from the telephone line are transmitted serially Hence they are placed on the bus in 8 bit units Here the internal equalizer circuit reduces the image signals to a long distance receiving level...

Страница 37: ...o pin 23 of ASIC IC1 on the digital board TEL LINE PC1 1 2 4 CN1 11 CN2 11 IC1 23 Note inside the digital board 6 7 3 ON OFF Hook Circuit Normally ON HOOK condition LINE RELAY RLY1 is OFF While OFF HOOK RLY1 turns ON This LINE RELAY is con trolled by pin 130 of IC1 through the Q7 ON HOOK IC1 130 Low Level Q7 OFF RLY1 OFF OFF HOOK IC1 130 High Level Q7 ON RLY1 ON 6 7 4 Pulse Dial Circuit Make state...

Страница 38: ...6 Here the signal output from CN1 pin 5 passes through C28 R23 R22 R82 C21 and R18 and enters the amplifier IC2 pin 3 This is used to can cel the return portion of the transmission signal This is the side tone circuit 6 7 6 CPC Calling Party Control Detection Circuit 1 Function This circuit detects the signal cuts the current output from the converter when the other party finishes ICM recording an...

Страница 39: ...nal which is modulated in an FSK Frequency Shift Keying format Data 0 is a 1200 Hz sine wave and data 1 a 2200 Hz sine wave There are two type of the message format which can be received i e the single data message format and multiple data mes sage format The multiple data format allows to transmit the name and data code information in addition to the time and telephone number data When there is m...

Страница 40: ... To use this feature you must sub scribe to a Caller ID service The data for the Caller ID from the telephone exchange is sent before the first ring signal The data from the telephone exchange is sent by DTMF signal 2 Circuit Operation The Caller ID signal from TEL LINE is processed with MODEM IC5 Refer to Signal Route P 108 for the route of Caller ID DTMF signal ...

Страница 41: ...and received voices to and from the handset 2 Signal path Refer to Signal Route P 108 6 8 3 Monitor Circuit for Each Signals 1 Function This circuit monitors various tones such as 1 DTMF tone 2 Alarm Beep Key tone Bell 3 Dummy ring back tone 2 Signal path Refer to Signal Route P 108 6 9 ATAS Automatic Telephone Answering System SECTION 6 9 1 Remote Receiving 1 Function This is the parallel connect...

Страница 42: ...C C216 C29 R38 R35 PC1 PC2 13 CN2 CN1 L1 13 Analog Board Digital Board To IC5 5VD 1 2 3 4 1 4 3 2 D8 24V Q7 RLY1 1 2 RLY 24VA 2 0V R13 R11 R10 C8 C7 C17 R18 R22 R23 R26 R27 R14 R15 D1 C21 4 3 2 1 8 IC2 Ref R41 L19 ZNR1 T1 C14 C28 C4 BELL R66 R65 R67 C54 Q10 D10 R2 R54 C43 R219 D506 R220 C217 C69 R5 ...

Страница 43: ...odes They are controlled by the Gate Array IC1 and ASIC IC1 on the DIGITAL BOARD The key matrix table is shown below CN1 CN206 IC1 ASIC Chip on board type LCD GATE ARRAY IC1 CN2 READ POSITION SENSOR DOCUMENT SENSOR 37 KEYS MATRIX LED DIGITAL BOARD OPERATION BOARD KX FT937LA B OPERATION BOARD BLOCK DIAGRAM XLED8 9 KIN0 7 XLED13 ...

Страница 44: ...rive R25 R24 R15 and R17 are density control resistors Consequently in this unit the timing positive clock is generated by the LCD interface circuitry in the gate array IC1 DIsplay mode Density Normal Dark English font Global 2 lines LED1 IC1 22pin H L LED15 IC1 21pin L L LED14 IC1 20pin Hi Z L Chinese font 2 lines LED1 L H LED15 Hi Z H LED14 Hi Z H ...

Страница 45: ... and D13 and charges C5 to make DC voltage Then it supplies power to the con verter circuit Kick on voltage circuit Bias is applied to the Q1 gate via this circuit when the AC power is turned on and Q1 begins operating Input Circuit AC Input Surge absorber circuit G H 9 6V 24V Kick on Voltage Circuit E F GND Control Circuit R2 R3 Converter Circuit C D 6V Output Circuit 24V Output Circuit Rectifier...

Страница 46: ...ansfer as follows L D1 Load L Then the power is supplied to the Load When Q1 is ON power is not output from the secondary side The output voltage is fed back in the control circuit according to the error amp rectifier Then depending on how f is controlled stabilization occurs Also when the current load becomes too large in order to decrease the voltage output the increase in f is controlled and th...

Страница 47: ...ows When the output voltage of the 24V circuit increases the current of the photo coupler PC101 increases the pulse width of the out put control circuit becomes higher and the ON period of Q101 becomes shorter Over Current Limiter O C L The highest drain current Q1 is limited by controlling f of Q1 of 24V The 24V output is limited by this circuit Over Voltage Circuit If the 24V output increases be...

Страница 48: ...onents 7 1 Overview 1 Speaker 2 Document guides 3 Paper stacker The paper stacker may not be shown in all illustrations in these operating instructions 4 Document feeder tray 5 Top cover 6 Document exit 7 Document entrance 8 Top cover release button ...

Страница 49: ...lay messages 8 AUTO ANSWER To turn the auto answer setting ON OFF 9 Station keys To use one touch dial feature 10 FAX START To start sending or receiving a fax 11 COPY To copy a document 12 MIC The built in microphone 13 TONE To change from pulse to tone temporarily during dialling when your line has rotary pulse services 14 MUTE To mute your voice to the other party during a conversation Press th...

Страница 50: ...perly To protect the unit from damage hold both sides when you move it 8 2 Connections Important The unit will not function when there is a power failure To make calls in emergency situations you should con nect a telephone that can function during a power fail ure to the telephone line 1 Paper stacker The paper stacker may not be shown in all illustrations in these operating instructions 2 Power ...

Страница 51: ...e paper roll 5 Close the top cover securely by pushing down on both sides 6 Press FAX START to cut the paper Note If the paper is secured with glue or tape cut approximately 15 cm from the beginning of the roll before installing it When the power cord is connected a message is printed each time the top cover is opened then closed If the record ing paper is installed upside down the message will no...

Страница 52: ...other side such as newsprint Check that ink paste or correction fluid has dried com pletely To send a document with a width of less than 210 mm we recommend using a copy machine to copy the original docu ment onto A4 or letter sized paper then sending the copied document 9 Operation Instructions 9 1 Setting Your Logo Your logo will be printed on the top of each page sent from your unit The logo ca...

Страница 53: ...ers alternately 1 Press 2 2 times 2 Press 4 3 times 3 Press 4 Press 5 3 times To correct a mistake 1 Press or to move the cursor to the incorrect character 2 Press STOP To erase all characters press and hold STOP 3 Enter the correct character To select characters using or Instead of pressing the dial keys you can select characters using or 1 Press repeatedly to display the desired character Charac...

Страница 54: ...D CHECK Service Mode 5 5 8 Checks the LCD indication Illuminates all the dots to check if they are normal Refer to Operation Panel Section P 113 SET KEY CHECK Service Mode 5 6 1 Checks the button operation Indicates the button code on the LCD while the button is pressed Refer to But ton Code Table P 55 Refer to Operation Panel Section P 113 START any key MEMORY CLEAR except History data Service Mo...

Страница 55: ...TMF signal will not work 10 2 Button Code Table 10 3 Print Test Pattern key High Frequency Hz key Low Frequency Hz 1 697 5 1209 2 770 6 1336 3 852 7 1477 4 941 8 1633 High Hz 1209 1336 1477 Low Hz 697 1 2 3 770 4 5 6 852 7 8 9 941 0 Code Button Name Code Button Name Code Button Name 04 FAX START 32 2 3E FLASH RECALL 05 LOWER 33 3 47 CALLER ID 06 COPY 34 4 64 STATION 1 08 SP PHONE 35 5 65 STATION 2...

Страница 56: ...se listed in the Operating Instructions and are available to the user The special programs are only those listed here and not displayed to the user In both the User and Ser vice Modes there are Set Functions and Test Functions The Set Functions are used to program various features and functions and the Test Functions are used to test the various functions The Set Functions are accessed by entering...

Страница 57: ...ets the interval of message transfer pager call redial 544 Document feed position adjustment value set 1 3 mm 2 4 mm 3 5 mm 4 6 mm 5 7 mm 1 5 3 If it is difficult to feed documents raise the set value If multi documents feed occurs lower the set value 550 Memory Clear See Memory Clear Specification P 59 551 ROM check See Test Mode P 54 552 DTMF single tone test 1 ON 2 OFF 1 2 2 See Test Mode P 54 ...

Страница 58: ...is a transmit problem P 81 and The unit can copy but the transmission and reception image are incorrect P 86 718 Receive speed selection 1 9600BPS 2 7200BPS 3 4800BPS 4 2400BPS 1 4 1 Adjusts the speed to start training during FAX recep tion Refer to Receive Problem P 82 and The unit can copy but the transmission and reception image are incorrect P 86 722 Redial tone detect 1 ON 2 OFF 1 2 1 Sets th...

Страница 59: ... 1 Execute Service Mode 550 when you want to reset the all setting data keeping the user information 2 Execute Service Mode 710 to clear the user information in case that Main Unit is recycled Note Please restart a power supply after clearing a memory ...

Страница 60: ...60 KX FT937LA B 11 2 The Example of the Printed List 11 2 1 User Mode Example of a printed out list Note The above values are the default values ...

Страница 61: ...61 KX FT937LA B 11 2 2 Service Mode Settings Example of a printed out list Note The above values are the default values ...

Страница 62: ... KX FT937LA B 11 2 3 History Example of a printed out list Note See the following descriptions of this report Item No 1 44 are corresponding to the listed items in Descriptions of the History Report P 63 ...

Страница 63: ... The amount of time the TEL FAX mode setting was used 16 Not used 17 FINAL RECEIVE MODE The last set receiving mode by the user 18 TONE PULSE SELECTION The most recently used setting used either TONE or PULSE 19 RECEIVE REDUCTION The compression rate when receiving 20 SETTING NO OF DIRECTORY The recorded directory stations 21 NUMBER OF COPY The number of pages copied 22 NUMBER OF RECEIVE The numbe...

Страница 64: ...lection lever paper thickness lever is set correctly and the paper is set correctly without any slack 2 Before troubleshooting first check that the connectors and cables are connected correctly not loose If the problem occurs randomly check it very carefully 3 When connecting the AC power cord with the unit and checking the operation exercise utmost care when handling electric parts in order to av...

Страница 65: ...ed message instructions to print out the document For fax memory capacity Refer to Specifications P 8 The memory is full of received documents due to lack of recording paper or a recording paper jam Install paper or clear the jammed paper Refer to Recording Paper Jams P 139 When performing broadcast transmission the document being stored exceeded the memory capacity of the unit Send the entire doc...

Страница 66: ...66 KX FT937LA B The unit is too hot Stop using the unit for a while and let the unit cool down ...

Страница 67: ...e after post message is transmitted three times 4 44 COMMUNICATION ERROR SND RTN and PIN are received 5 46 COMMUNICATION ERROR RCV No response after FTT is transmitted 6 48 COMMUNICATION ERROR RCV No post message 7 49 COMMUNICATION ERROR RCV RTN is transmitted 8 50 COMMUNICATION ERROR RCV PIN is transmitted to PRI Q 8 51 COMMUNICATION ERROR RCV PIN is transmitted 8 OTHER FAX NOT RESPONDING RCV Rec...

Страница 68: ...68 KX FT937LA B ...

Страница 69: ...69 KX FT937LA B CROSS REFERENCE Test Mode P 54 ...

Страница 70: ...70 KX FT937LA B CROSS REFERENCE Test Mode P 54 ...

Страница 71: ...71 KX FT937LA B CROSS REFERENCE Test Mode P 54 ...

Страница 72: ...72 KX FT937LA B CROSS REFERENCE Test Mode P 54 ...

Страница 73: ...73 KX FT937LA B ...

Страница 74: ...74 KX FT937LA B ...

Страница 75: ...75 KX FT937LA B CROSS REFERENCE Test Mode P 54 ...

Страница 76: ... you basic information about a communication but the other two journal reports provide different informa tion on the same item communication HOW TO READ JOURNAL REPORTS Example 1 Look at NO 01 in the JOURNAL If you want to know about the details about that item see NO 01 in the JOURNAL 2 and the JOURNAL 3 You can get the following information MODE Fax transmission RCV MODE TEL TX SPEED 9 6 kbps RE...

Страница 77: ...memory due to PAPER OUT error NO RESPONSE DISAPPEARED ON JOURNAL The NO RESPONSE DISAPPEARED ON JOURNAL displays the information about the last 10 communications terminated by No Response Some of the communications terminated by No Response were not displayed in the JOURNAL When a fax transmission cannot be performed because the other party s unit is set to the TEL mode No response will be printed...

Страница 78: ...Scan Line Time Used only at the factory 8 EQM EQM means Eye Quality Monitor Used only at the factory 9 ERROR LINE RX When an error occurs while receiving a fax this shows the number of error lines 10 MAKER CODE This shows a 2 digit code of the other party s fax machine brand 0E KX model 00 Unknown 79 UF model 19 Xerox model 12 3 2 3 Printout Example ...

Страница 79: ...cessfully but sometimes fails The unit can copy documents Troubleshooting Problem with the service line or with the transmitter s fax 4 The fax completely fails to transmit or receive The unit can copy documents Troubleshooting Problem with the electric circuit 5 The fax fails either to transmit or receive when making a long distance or an international call The unit can copy documents Detailed de...

Страница 80: ...LA B 12 3 3 1 Defective Facsimile Section 12 3 3 1 1 Transmit Problem Note Refer to Other P 9 for display message CROSS REFERENCE Operation Panel Section P 113 ADF Auto Document Feed Section P 93 Maintenance P 131 ...

Страница 81: ...T937LA B 12 3 3 1 2 Sometime there is a transmit problem Note Refer to Error Message Display P 10 for display message Note 596 Transmit level set represents a service code Refer to Service Function Table P 57 ...

Страница 82: ...ated problems such as OUT OF PAPER when the fax switches to the memory receiving mode and the memory capacity becomes full of the unprintable data In this case error mes sages MEMORY FULL and its main cause for example CHECK PAPER are displayed on the LCD Once you solve the main problem MEMORY FULL will be cancelled and the reception problem will be resolved LCD display messages indicating the err...

Страница 83: ...83 KX FT937LA B 12 3 3 1 4 The unit can copy but cannot transmit receive CROSS REFERENCE Analog Board Section P 108 Test Mode P 54 ...

Страница 84: ...should be called manually if possible Another possibility is entering two pauses at the end of the auto dial number on the transmission side Then the count start time can be delayed for 2 pauses about 10 sec Cause 2 Erroneous detection because of an echo or an echo canceler Echo Echo Canceler The signal from FAX1 reaches FAX2 via stations 1 and 2 but the reflection signal at station 2 also returns...

Страница 85: ...ge the regular rime of 75 msec between the CED signal and DIS signal to 500 msec This will give at least 250 msec to recover the echo canceler operation Refer to Fig c Service code 593 Time between CED and 300 bps Sending side The sending side FAX sends a DCS signal not after receiving the 1st DIS signal but after receiving the 2nd DIS signal Refer to Fig d Service code 594 Overseas DIS detection ...

Страница 86: ...e other FAX unit and the line conditions The countermeasures for this unit are shown below Transmission Operation Set the transmitting speed to 4800BPS service mode code No 717 or select the overseas mode Reception Operation If 80 or more of the reception is incorrect set the receiving speed to 4800BPS Service mode code No 718 Refer to Service Function Table P 57 TX side signal RX side signal Coun...

Страница 87: ...control setting Refer to the PC instruction book 2 Start up the PC software SOUND RECORDER This software is bundled to Windows OS which can create WAV file Set the audio format PCM 22 050kHz 8bit mono 3 Click the record button and start recording after acquisition the signal Note Not to be wind wave patterns on the wave monitor Please compress the recording data when you send attaching to E Mail b...

Страница 88: ...omer s fax machine Based on this the parameters for the desired codes can be changed The procedure for changing and listing parameters is described on Entering the Remote Programming Mode and Changing Service Codes P 88 Also before exiting the remote programming mode it is advisable to obtain a new list to confirm that the changes were made correctly Hint Since the connected telephone is in use du...

Страница 89: ...answer mode 1 TAM FAX 2 FAX Only TAM FAX OK 078 TEL FAX ring setting 1 9 2 OK 080 Set default 1 YES 2 NO NO NG 501 Pause time set 001 600 x 100msec 050 x 100msec OK 502 Flash time 01 99 x 10ms 70 x 10ms OK 503 Dial speed 1 10pps 2 20 pps 10pps OK 510 Vox time 1 6sec 2 4sec 6sec OK 511 Vox sense 1 High 2 Low High OK 514 Bell detection time 1 9 44msec 6 44msec OK 520 CED frequency select 1 2100Hz 2 ...

Страница 90: ...peed select 1 9600 2 7200 3 4800 4 2400 9600bps OK 718 Receive speed select 1 9600 2 7200 3 4800 4 2400 9600bps OK 722 Redial tone detect 1 ON 2 OFF ON OK 731 CPC mode 1 A 2 B 3 OFF A OK 732 Auto disconnect cancel time 1 350 msec 2 1800 msec 3 OFF 350 msec OK 745 Power on film feed 1 ON 2 OFF ON OK 763 CNG detect time for friendly reception 1 10s 2 20s 3 30s 30s OK 774 T4 timer 00 99 x 100ms 00ms ...

Страница 91: ...y use different expressions for the same problem as they are not a technician or engineer Using your experience test the problem area corresponding to the claim Also returns from a customer or dealer often have a claim tag For these cases as well you need to determine the problem Test the unit using the simple check list on Simple Check List P 92 Diffi cult problems may be hard to determine so rep...

Страница 92: ...ower Supply Board Section P 110 Operation panel Keys are not accepted See Operation Panel Section P 113 Sensor If the electric circuit is the cause the error message corresponding to the sensor will be displayed See Sensor Section P 114 SERIAL NO DATE FUNCTION JUDGEMENT REFERENCE FAX operation Transmission OK NG Receiving OK NG Copy operation FINE mode OK NG PHOTO mode OK NG Telephone operation Ha...

Страница 93: ...ve the Operation Board LCD and Platen Roller P 122 3 Refer to Test Mode P 54 4 Refer to Digital Board Section P 100 5 Refer to Sensor Section P 114 6 Refer to How to Remove the Gear Block and Separation Roller P 129 7 Refer to How to Remove the Separation Holder and Document Feed Support P 123 8 Refer to Power Supply Board Section P 110 ...

Страница 94: ...7LA B 12 5 4 2 Document Jam CROSS REFERENCE Test Mode P 54 Sensor Section P 114 Note 1 Refer to How to Remove the Operation Board LCD and Platen Roller P 122 2 Refer to Disassembly and Assembly Instructions P 118 ...

Страница 95: ... KX FT937LA B 12 5 4 3 Multiple Feed Note 1 Refer to How to Remove the Separation Holder and Document Feed Support P 123 2 Refer to Disassembly and Assembly Instructions P 118 3 Refer to Maintenance P 131 ...

Страница 96: ...ons P 131 2 Refer to Disassembly and Assembly Instructions P 118 3 Refer to How to Remove the Separation Holder and Document Feed Support P 123 4 Refer to How to Remove the Operation Board LCD and Platen Roller P 122 5 Refer to How to Remove the Image Sensor CIS and Feed Roller P 124 ...

Страница 97: ...E Thermal Head Section P 116 Test Mode P 54 CIS Contact Image Sensor Section P 115 Note 1 Refer to Maintenance Items and Componet Locations P 131 2 Refer to Disassembly and Assembly Instructions P 118 3 Refer to How to Remove the Operation Board LCD and Platen Roller P 122 ...

Страница 98: ...o How to Remove the Lock Lever and Thermal Head P 126 2 Refer to Maintenance Items and Componet Locations P 131 3 Refer to How to Remove the Operation Board LCD and Platen Roller P 122 4 Refer to How to Remove the Image Sensor CIS and Feed Roller P 124 12 5 4 7 Skewed Receiving Image Note 1 Refer to Installing the Recording Paper P 51 ...

Страница 99: ...e Unit Note 1 Refer to Document Feeder Scanner Glass Cleaning P 140 2 Refer to Thermal Head Cleaning P 140 3 Refer to Disassembly and Assembly Instructions P 118 4 Refer to How to Remove the Motor of Gear Block P 129 5 Refer to How to Remove the Gear Block and Separation Roller P 129 ...

Страница 100: ...LASH ROM malfunctions are extremely rare after installation in the product This may be repaired by replacing the IC DRAM etc However the real cause may not have been an IC malfunction but a sol dering fault instead Soldering faults difficult to detect with the naked eye are common particularly for ASIC and RA Resistor Array But if you have an oscilloscope you can easily determine the problem site ...

Страница 101: ...tems Flash memory IC2 in the ASIC system is for software and also for user memory settings Phone book CID memory DRAM IC4 in the ASIC system is for work memory and also for fax memory Flash memory IC6 in the ASIC system is for voice data of TAM functions message REC PLAY voice prompt The signal lines that must be normal for the system to boot up are listed here List 1 For signal lines other than t...

Страница 102: ...102 KX FT937LA B NG Wave pattern Note Refer to NG Example P 107 ...

Страница 103: ...of these signals If the timing of these signals is even slightly delayed the circuit will not work Nor will it if the IC is defective and the output voltage level is not normal although the timing of these signals is accurate enough to meet the specifications Make sure that your oscilloscope is calibrated before starting a test Therefore it is imperative to confirm whether each IC outputs the sign...

Страница 104: ...104 KX FT937LA B I O and Pin No Diagram ...

Страница 105: ...105 KX FT937LA B 12 5 5 2 Check the Status of the Digital Board First please check voltages and oscillation whether they are correct as follows ...

Страница 106: ...106 KX FT937LA B ...

Страница 107: ...107 KX FT937LA B 12 5 5 3 NG Example ...

Страница 108: ...handset microphone and the signal is output to the telephone line The signal mainly flowing on this route is analog You can trace the signal with an oscilloscope The signal flow on each route is shown in the Check Sheet here If you find a specific problem in the unit for example if you cannot communicate with the MONITOR trace that signal route locally with the following Check Sheet and locate the...

Страница 109: ...ion reception Following the ITS section or NCU section search for the route between the microphone and the telephone line sending or between the telephone line and the speaker receiving where the signal disappears Check the components at that point 2 No pulse dialing 3 No ring tone or No bell 4 No tone dialing ...

Страница 110: ...ltage test withstanding voltage test intentional short circuit test etc Caution If you find a melted fuse in the unit do not turn on the power until you locate and repair the faulty parts except for the fuse otherwise the fuse will melt again and you cannot pinpoint the faulty point In most cases the symptom is that nothing is output It is more likely that the fault is in the primary side rather t...

Страница 111: ...111 KX FT937LA B 12 5 7 2 Troubleshooting Flow Chart ...

Страница 112: ...1 Q1 The worst case of Q1 is a short circuit between the Drain and Gate because damage expands to the peripheral circuit of Q1 This is due to a very high voltage through the Gate circuit which is composed of R19 Q2 and Q21 etc You should change all of the parts listed as follows F1 Q1 R19 Q2 Q21 D101 D104 If D101 and D104 are broken the oscillation circuit in the power supply cannot operate Check ...

Страница 113: ...113 KX FT937LA B 12 5 8 Operation Panel Section 12 5 8 1 No Key Operation CROSS REFERENCE Test Mode P 54 12 5 8 2 No LCD Indication CROSS REFERENCE Test Mode P 54 ...

Страница 114: ...P 26 for the circuit descriptions 12 5 9 1 Check the Document Sensor SW39 CHECK DOCUMENT Note Refer to Error Message Display P 10 for display message 12 5 9 2 Check the Read Position Sensor SW38 REMOVE DOCUMENT Note Refer to Error Message Display P 10 for display message ...

Страница 115: ...115 KX FT937LA B 12 5 10 CIS Contact Image Sensor Section Refer to Scanning Block P 24 CROSS REFERENCE Test Mode P 54 ...

Страница 116: ...116 KX FT937LA B 12 5 11 Thermal Head Section Refer to Thermal Head P 22 ...

Страница 117: ...117 KX FT937LA B 13 Service Fixture Tools ...

Страница 118: ...l Block P 121 A 3 How to Remove the Operation Board LCD and Platen Roller P 122 A 4 How to Remove the Separation Holder and Document Feed Support P 123 A 5 How to Remove the Image Sensor CIS and Feed Roller P 124 A 6 How to Remove the Cutter Unit P 125 A 7 How to Remove the Lock Lever and Thermal Head P 126 B 1 How to Remove the Bottom Frame P 127 B 3 How to Remove the Gear Block and Separation Ro...

Страница 119: ...Stacker P 120 A 6 How to Remove the Cutter Unit P 125 B 1 How to Remove the Bottom Frame P 127 B 2 How to Remove the Analog Board Digital Board Power Supply Board and Power Cord P 128 B 3 How to Remove the Gear Block and Separation Roller P 129 B 4 How to Remove the Motor of Gear Block P 129 ...

Страница 120: ...120 KX FT937LA B 14 2 Disassembly Procedure 14 2 1 How to Remove the Paper Stacker ...

Страница 121: ...121 KX FT937LA B 14 2 2 How to Remove the Operation Panel Block ...

Страница 122: ...122 KX FT937LA B 14 2 3 How to Remove the Operation Board LCD and Platen Roller ...

Страница 123: ...123 KX FT937LA B 14 2 4 How to Remove the Separation Holder and Document Feed Support ...

Страница 124: ...124 KX FT937LA B 14 2 5 How to Remove the Image Sensor CIS and Feed Roller ...

Страница 125: ...125 KX FT937LA B 14 2 6 How to Remove the Cutter Unit ...

Страница 126: ...126 KX FT937LA B 14 2 7 How to Remove the Lock Lever and Thermal Head ...

Страница 127: ...127 KX FT937LA B 14 2 8 How to Remove the Bottom Frame ...

Страница 128: ...128 KX FT937LA B 14 2 9 How to Remove the Analog Board Digital Board Power Supply Board and Power Cord ...

Страница 129: ...129 KX FT937LA B 14 2 10 How to Remove the Gear Block and Separation Roller 14 2 11 How to Remove the Motor of Gear Block ...

Страница 130: ...130 KX FT937LA B 14 2 12 Installation Position of the Lead Wires ...

Страница 131: ...elf testing and communication testing to determine if the problem originates from the transmitter receiver or the telephone line 4 Determine causes Determine the causes of the equipment problem by troubleshooting 5 Equipment repairs Repair or replace the defective parts and take appropriate measures at this stage to ensure that the problem will not recur 6 Confirm normal operation of the equipment...

Страница 132: ...ad P 126 5 Sensors Document sensor SW39 Read position sensor SW38 Record ing paper cover open sensor SW1 Jam sensor SW3 Hook switch SW2 Confirm the operation of the sensors See Componet Locations P 131 6 Glass If the glass is dirty clean them with a dry soft cloth Refer to Document Feeder Scanner Glass Cleaning P 140 7 Abnormal wear and tear or loose parts Replace the part Check if the screws are ...

Страница 133: ... 2 1 Mode Selection When the motor attached to the Drive Motor Gear rotates counterclockwise CCW Swing Gear A engages the CAM and the CAM turns counterclockwise to select a mode See Fig A There are three mode options controlled by the Switch A Transmit mode B Receive mode and C Copy mode In Fig B you can see which mode is selected by the position of the rib in the CAM Fig A ...

Страница 134: ...Gear A 1 controls the mode opera tion 15 2 2 1 TX Mode Swing Gear A engages Gear TX and conveys its drive power to the Separation Roller Gear for pre feeding documents Fig B TX mode 15 2 2 2 RX Mode Swing Gear B engages Gear RX and conveys its drive power to the Platen Roller Gear for printing the received data Fig C RX mode ...

Страница 135: ...Separation Roller Gear and the Platen Roller Gear for feeding documents and recording paper in the copying operation Fig D Copy mode 15 2 2 4 Reverse Mode Swing gear D engages between swing gear B and gear RX and conveys its drive power to the platen roller gear for reversing the recording paper Fig E Reverse mode ...

Страница 136: ...15 2 2 5 Cutter Mode Swing gear C engages the gear cutter and conveys its drive power to cutter unit for cutting recording paper Fig F Cutter mode 15 2 3 Mechanical Movements in the Main Operations 15 2 3 1 Idle Status ...

Страница 137: ...137 KX FT937LA B 15 2 3 2 Scanning CROSS REFERENCE Sensor Section P 114 Error Messages Display P 65 15 2 3 3 Printing Note See Sensors and Switches P 26 ...

Страница 138: ...138 KX FT937LA B 15 2 3 4 Copying CROSS REFERENCE Sensor Section P 114 ...

Страница 139: ...off the wrinkled portion 5 Install the recording paper and close the top cover securely by pushing down on both sides See page Installing the Recording Paper P 51 15 3 2 Document Jams Sending 1 Open the top cover by pressing the top cover release but ton and remove the jammed document carefully 2 Close the top cover securely by pushing down on both sides Note Do not pull out the jammed paper forci...

Страница 140: ...Connect the power cord and the telephone line cord 5 Close the top cover securely by pushing down on both sides 15 4 2 Thermal Head Cleaning If smudges or black white lines appear on a copied received document check whether there is dust on the thermal head Clean it to remove the dust 1 Disconnect the power cord and the telephone line cord 2 Open the top cover by pressing the top cover release but...

Страница 141: ...141 KX FT937LA B 16 Miscellaneous 16 1 Terninal Guide of the ICs Transistors and Diodes 16 1 1 Digital Board 16 1 2 Analog Board 16 1 3 Operation Board ...

Страница 142: ...142 KX FT937LA B 16 1 4 Power Supply Board ...

Страница 143: ... Flux Recommended Flux Specific Gravity 0 82 Type RMA lower residue non cleaning type Note See About Lead Free Solder PbF Pb free P 7 16 2 2 Flat Package IC Removal Procedure 1 Put plenty of solder on the IC pins so that the pins can be completely covered Note If the IC pins are not soldered enough you may give pressure to the P C board when cutting the pins with a cutter 2 Make a few cuts into th...

Страница 144: ...of the IC setting with the corresponding soldering foil 2 Apply flux to all pins of the FLAT PACKAGE IC 3 Solder the pins sliding the soldering iron in the direction of the arrow 16 2 4 Bridge Modification Procedure 1 Lightly resolder the bridged portion 2 Remove the remaining solder along the pins using a soldering iron as shown in the figure below ...

Страница 145: ...e in the troubleshooting procedures between the two types At the start of communication during the initial 2 3 correspondences the digital speakerphone performs half duplex operation alternating between transmission Tx and reception Rx Then duplex communication becomes available Learning occurs during the initial 2 3 correspondences in order to set the appropriate parameters for duplex communicati...

Страница 146: ...146 KX FT937LA B Refer to Analog Board Section P 108 ...

Страница 147: ...147 KX FT937LA B 16 3 Test Chart 16 3 1 ITU T No 1 Test Chart ...

Страница 148: ...148 KX FT937LA B 16 3 2 ITU T No 2 Test Chart ...

Страница 149: ... 1 2 DG DG DG DG IC4 1 VCC 1 2 DQ1 3 DQ2 4 DQ3 5 DQ4 6 NC6 7 WE 8 RAS 9 A9R 10 A0 11 A1 12 A2 13 A3 14 VCC 14 15 VSS 15 16 A4 17 A5 18 A6 19 A7 20 A8 21 NC21 22 OE 23 CAS 24 DQ5 25 DQ6 26 DQ7 27 DQ8 28 VSS 28 IC11 1 INB 2 INA 3 GND 4 OUT 5 VCC DG DG DG DG DG R80 2 2K R78 330K R77 NC DG DG DG DG BAT1 0 R2 1 5K 1 2W Q6 Q5 Q4 Q2 Q9 D503 D501 ROMCSMFCS PG C77 NC 5V 5V Z1u C71 A B CN206 1 MIC 2 5V 3 DG...

Страница 150: ...L19 NC L20 NC DG DG DG 3 3VD L4 L3 5VA 5VA 5VA DG DG DG NC R147 IC12 1 CD 2 FC2 3 FC1 4 VIN 5 VO1 6 VCC 7 GND 8 VO2 NC R146 120K R145 9 1K R141 15K R140 120K R144 10K R142 0 R143 A B IC9 1 2 3 4 V 5 6 7 8 V 3 3K R131 4 7K R38 C93 NC J100p C32 J100p C33 C91 NC C92 J100p J100p C127 J100p C232 K0 01u C34 K0 01u C113 Z0 1u C90 NC C106 C116 Z0 1u C117 NC C126 Z0 1u C172 Z0 1u C202 Z0 1u C206 C211 NC C2...

Страница 151: ...UTE 16 H SRX AG R25 10K L5 0 AG AG 1 2 3 4 8 12V C10 NC AG C15 16V10u AG C63 NC R81 0 R82 0 R91 0 C64 NC DA2 NC 1K 2A 1A2K SW2 1 2 3 4 5 6 R87 NC Q13 NC C66 NC D12 NC C54 NC C56 NC C69 NC JJ5 NC FG2 AG AG AG AG C2 K0 01u C5 K0 01u C71 35V33u R72 NC R69 NC Q10 NC R71 NC C60 NC C55 NC PC4 NC A K E C R66 NC R68 NC R67 NC R70 NC R65 NC Q11 NC 1 L34 C72 Z0 1u R27 0 R14 1 8K R23 NC R28 8 2K 6 8K R29 91K...

Страница 152: ...JJ1 NC JJ2 NC T3 NC 1 2 3 4 6 R59 NC C65 NC POS1 W5NL5T L33 NC ZNR1 C67 NC R88 NC R84 NC C68 NC R86 NC PC6 NC A K E C 5V R85 NC R83 NC Q12 NC Q9 NC PC5 NC A K E C FLT3 NC 1 2 3 4 5 6 7 8 AG AG JJ3 NC JJ4 0 NC D10 NC 1 2 3 4 C53 NC R77 NC C52 NC RLY1 2 1 2 RLY1 1 3 5 4 D13 NC L21 L23 L24 L22 D15 NC R45 15K 1 2W R38 22K 1 2W R35 6 2K 0 R58 R49 10K R50 10K C34 J220p 250V1u C38 L25 NC L26 NC CN4 NC 1 ...

Страница 153: ...5 SW11 0 SW12 8 SW13 9 SW14 3 SW15 6 SW16 SW17 MONITOR SW18 PAUSE SW19 FLASH SW20 REDIAL SW21 NAVI LEFT SW22 NAVI DOWN SW23 NAVI UP SW24 NAVI RIGHT SW25 NAVI CENTER SW26 BOARDCAST SW27 SKEY 3 SW28 SKEY 2 SW30 SKEY 1 SW31 SKEY 6 SW32 MENU SW33 AUTO ANSWER SW34 SKEY 5 SW35 SKEY 4 MIC MIC C14 J120p 0 R14 C13 K330p SW38 1 2 3 4 4 7K R23 100 R21 K0 01u C20 5V CN2 1 VSS 2 VDD 3 V0 4 RS 5 R W 6 E 7 DB4 8...

Страница 154: ...2 R23 D20 D9 R9 R12 R13 R11 D4 D105 C102 D107 D110 C112 R113 R413 R412 R411 C411 R117 C111 R114 VR101 IC401 PC1 R111 R121 R122 R119 R110 D5 C8 R5 BEA1 7 24V CNJ2 8 24V 9 24V 2 6 5V 3 6 5V 1 N C 4 GND 5 GND 6 GND C101 C103 KX FT937LA B POWER SUPPLY BOARD SCHEMATIC DIAGRAM 0 33 1M 1M 1M NC NC NC NC NC NC 18p 220 0 0033 20K 10 100K 180K 180K 560 0 01 0 100K 47K 0 0047 33K 33K 0 001 1 2 2 0 100p 100K ...

Страница 155: ...155 KX FT937LA B MEMO ...

Страница 156: ...5A IC15 5 8 4 1 IC12 IC9 1 4 8 5 B 32 7 X1 DG TEST CN9 2 1 C78 C75 C72 5 1 3 4 IC3 Q2 E Q13 E Q10 E E Q14 D507 X2 C228 C142 C227 C235 C214 C213 C144 5VA C85 C12 C11 R2 R1 R10 F1 C73 C10 C74 R3 C104 C106 0 25A F2 R74 C83 R33 R32 C31 C82 R73 R72 C70 C76 C79 C81 C80 R71 R92 R94 R95 C90 C71 C77 R93 C92 C91 R91 R96 R70 C169 C170 R160 R159 R90 R157 R178 C93 R100 C100 C103 R101 C101 C102 R229 C236 C237 L...

Страница 157: ...6 R40 R39 C34 R35 C32 C145 R140 C128 C146 R144 C143 R141 R147 R145 C140 R221 R219 C216 C112 C118 R226 R225 C223 C221 R222 R223 R224 C229 C226 R233 C231 C217 C219 C220 C222 C225 C230 C240 C239 C238 R230 C233 L17 C224 C232 L3 C241 C250 L4 R228 R231 L6 C203 C202 R201 C206 R232 C200 C205 C204 C201 R200 R204 R205 R206 R202 C177 C176 R167 R165 R166 C175 R214 C174 C207 L19 C242 R220 L20 C210 R217 C243 C2...

Страница 158: ...4 JJ3 JJ4 R86 R9 C67 PC2 J28 PC6 SW2 C38 CN2 JJ2 CN4 SA1 L33 C28 SW1 SW3 J30 J29 C4 R27 R26 J24 J21 J20 J18 J17 C42 J27 J22 J15 J16 J11 J11 C54 C56 D5 D4 C71 R62 R45 R38 SA2 CN3 POS1 JJ1 L19 R41 C68 D15 D13 Q10 E 4 8 5 1 J4 JJ5 J2 J3 C45 C47 D7 D6 PFUP1547Z PbF KX FT937LA B Analog Board Component View C6 C10 CN1 1 16 J26 J6 J10 C15 PCB CH AUTO CH ...

Страница 159: ... LINE EXT LINE Q12 PC2 PC6 4 3 1 2 C E E IC2 4 5 8 1 A K R84 E 1 16 PbF DA2 R47 R9 R39 R2 R60 R25 L2 R5 R34 L11 C33 R46 R37 L1 R31 R30 R33 R29 C25 C11 R28 Q3 Q4 Q5 Q2 Q9 R72 C12 R17 E E E E E C24 L6 R20 R51 C39 L15 C44 R35 R65 C60 L5 24VA C32 C3 2V C37 R36 C35 R44 L12 C36 Q8 C50 R43 R61 C49 R63 C65 R59 C63 R66 C69 R58 C29 Q7 A E L22 L24 L23 L21 L16 C51 L17 R49 C34 R42 C30 L10 R40 R32 C46 C41 R55 R...

Страница 160: ...T SW26 J16 J6 J2 J1 J7 J26 C3 1 10 CN1 MENU SW32 ERASE SW36 PLAYACK SW37 AT ANS SW33 A LED1 REDIAL SW20 PAUSE SW18 SW17 MONITOR SW4 CN2 1 10 J11 J10 J5 J4 J15 J3 J8 J35 J9 J17 J20 1 SW9 2 SW10 5 SW12 8 SW11 0 SW14 3 SW30 S1 SW28 S2 SW27 SW23 SW21 SW25 SW22 KX FT937LA B Operation Board Component View SW24 S3 SW35 S4 SW34 S5 SW31 S6 SW15 6 SW13 9 SW16 4 SW8 7 SW7 SW6 C99 ...

Страница 161: ...C E R17 R19 R16 R15 R25 R24 C16 R18 C15 R50 R1 R3 R5 R2 C2 C1 C19 R20 R22 R4 C4 C9 R14 C7 C6 C13 C14 IC1 1 11 12 22 23 33 34 44 SW39 1 10 C20 R23 C25 R47 R48 R37 C26 C22 C28 R39 R35 R34 R21 C17 10 1 KX FT937LA B Operation Board Bottom View PFUP1560Z PbF ...

Страница 162: ...0 4A C3 C4 R19 J4 J101 C109 D105 J102 1 D110 J103 C7 D10 J2 WHITE BLUE BLACK BROWN N L ZNR1 COMPONENT VIEW BOTTOM VIEW L N R73 C10 R14 C15 R28 D27 D7 D17 Q22 Q2 Q23 R27 R7 R6 R26 C13 R71 R72 R2 R3 R4 C5 R31 R24 R21 R25 C14 C16 J3 J5 R12 Q101 R119 R115 R111 R112 R409 R410 C410 D104 R122 R121 R411 R412 R413 R114 R113 C112 C411 R110 C115 R117 C111 D4 R13 R11 R23 D9 R9 D22 D23 Q21 R5 J1 R8 KX FT937LA ...

Страница 163: ...nformation of Schematic Diagram Note 1 DC voltage measurements are taken with an oscilloscope or a tester with a ground 2 The schematic diagrams and circuit board may be modified at any time with the development of new technology 3 ...

Страница 164: ...164 KX FT937LA B 20 Exploded View and Replacement Parts List 20 1 Cabinet Mechanical and Electrical Parts Location 20 1 1 Operation Panel Section ...

Страница 165: ...165 KX FT937LA B 20 1 2 Upper Cabinet Section ...

Страница 166: ...166 KX FT937LA B 20 1 3 Lower Cabinet Section ...

Страница 167: ...167 KX FT937LA B 20 1 4 Gear Block Section ...

Страница 168: ...168 KX FT937LA B 20 1 5 Screws ...

Страница 169: ...169 KX FT937LA B 20 1 6 Accessories and Packing Materials ...

Страница 170: ...IDE RIGHT 20 PFKR1086Z1 GUIDE LEFT 21 PFUV1088Z2 COVER DOCUMENT GUIDE 22 PFHX1834Z READ SHEET WHITE PLATE 23 PFHG1210Z RUBBER SEPARATION 24 PFHR1504Y COVER SEPARATION HOLDER 25 PFUS1588Z SPRING SEP HOLDER 26 PFHR1503Z COVER DOC FEED SUPPORT 27 PFUS1631Z SPRING DOC SUPPORT 28 PFUV1105Z2 COVER OPERATION PANEL 29 PFDF1017Z SHAFT 30 PFDR1045Z ROLLER DOCUMENT SUB 31 PFUS1587Z SPRING DOCUMENT SUB ROLLER...

Страница 171: ...WP1FT937LA DIGITAL BOARD ASS Y RTL ICs IC1 C1ZBZ0001896 IC IC2 PFWIFT937LA IC IC3 C0CBCBD00047 IC IC4 C3ABKC000034 IC IC5 C1CB00002305 IC IC6 C3FBKC000135 IC IC9 C0ABEB000052 IC IC10 C0JBAS000252 IC IC11 C0JBAA000474 IC IC12 C1BB00000129 IC IC15 C0CBADD00009 IC IC16 C0JBAE000425 IC TRANSISTORS Q1 2SB1322 TRANSISTOR SI S Q2 PQVTDTC143E TRANSISTOR SI S Q4 PQVTDTC143E TRANSISTOR SI S Q5 PQVTDTC143E T...

Страница 172: ...04Z 0 1 C242 ECJ1VF1C105Z 1 C243 ECJ1VF1C105Z 1 C251 ECJ1VF1C104Z 0 1 CONNECTORS CN1 K1KA09A00204 CONNECTOR 9PIN Ref No Part No Part Name Description Remarks CN2 K1KA16A00206 CONNECTOR 16PIN CN3 K1KA05AA0193 CONNECTOR 5PIN CN4 K1KA11A00158 CONNECTOR 11PIN CN5 K1KA02A00746 CONNECTOR 2PIN CN6 K1KA02A00745 CONNECTOR 2PIN CN8 K1KA07A00257 CONNECTOR 7PIN CN9 K1KA02A00587 CONNECTOR 2PIN CN10 K1MN08A0001...

Страница 173: ...RJ3GEYJ103 10K R220 ERJ3GEY0R00 0 R221 ERJ3GEYJ472 4 7K R222 ERJ3GEY0R00 0 R223 ERJ3GEYJ392 3 9K R224 ERJ3GEY0R00 0 R226 ERJ3GEYJ203 20K R227 PQ4R18XJ220 22 S R228 ERJ3GEYJ473 47K Ref No Part No Part Name Description Remarks R229 ERJ3GEYJ102 1K R230 ERJ3GEY0R00 0 R231 ERJ3GEY0R00 0 R232 ERJ3GEYJ472 4 7K R233 ERJ3GEYJ332 3 3K COMPONENTS PARTS RA7 EXB38V103JV COMPONENTS PARTS CRYSTAL OSCILLATORS X1 ...

Страница 174: ...30 R58 ERJ3GEY0R00 0 R60 ERJ3GEYJ103 10K R63 ERJ3GEYJ105 1M R82 ERJ3GEY0R00 0 Ref No Part No Part Name Description Remarks R91 ERJ3GEY0R00 0 CAPACITORS C1 ECJ1VB1H103K 0 01 C2 ECJ1VB1H103K 0 01 C4 ECEA1HKA4R7 4 7 S C5 ECJ1VB1H103K 0 01 C6 ECEA0JKA470 47 S C7 ECJ1VF1E104Z 0 1 C8 ECJ1VC1H221J 220P C9 ECJ1VC1H221J 220P C11 ECJ1VB1C333K 0 033 C12 ECJ1VB1C104K 0 1 C14 ECJ1VB1H392K 0 0039 C15 F2A1C10000...

Страница 175: ...GEYJ393 39K R39 ERJ3GEYJ564 560K R47 ERJ3GEYJ332 3 3K R48 ERJ3GEYJ151 150 R50 ERJ3GEYJ330 33 CAPACITORS C1 ECJ1VF1E104Z 0 1 C3 ECEA0JKA221 220 S C4 ECJ1VB1H331K 330P C6 ECJ1VB1H103K 0 01 C13 ECJ1VB1H331K 330P C14 ECJ1VC1H121J 120P C15 ECJ1VF1E104Z 0 1 C16 ECJ1VF1E104Z 0 1 C17 ECJ1VF1C224Z 0 22 C19 ECJ1VB1H103K 0 01 C20 ECJ1VB1H103K 0 01 Ref No Part No Part Name Description Remarks C22 ECJ1VB1H103K...

Страница 176: ...C5 PFCKDVB180M 180 S C7 DE2E3KH332 0 0033 C8 DEHR33A221 220P C9 PFCKDB11H472 0 0047 S C10 PFCKD8BH103 0 01 S C13 PFCKDB11H102 0 001 S C14 PFCKD31E225 2 2 S C15 PFCKD2C1H101 100P S C16 PFCKD31E105 1 S C411 PFCKD71H224 0 22 S C101 PFCEA35L330M 330 S C102 PFCEA16ZL470 470 S C109 DEHC32H471 470P C115 PFCKDB31H104 0 1 S Ref No Part No Part Name Description Remarks EC1 PQZZ9K7Z EXTENSION CORD 9 PIN EC2 ...

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