Panasonic KX-FHD333BR Service Manual Download Page 134 | Manualshive

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Stepping Motor Drive Mode

Function

Mode

Phase Pattern

Speed

Copy

Fine or photo

1-2

432 pps (t=1/432)

Super Fine

1-2

216 pps (t=1/216)

Paper Feed

———

1-2

432 pps (t=1/432)

Stand-by

———

All phases are
currently off.

None

8.4.6. STEPPING MOTOR DRIVE CIRCUIT (RX)

1. Function

The stepping motor works for reception.

2. Motor

During motor driving, pin 124 of ASIC IC501 becomes a high level, and Q503, Q502 turns ON. As a result, +24V is supplied
to the motor coil.

Stepping pulses are output from ASIC IC501 pins, 120~123, causing driver IC508 pins, 16~13 to drive the Motor Coil. The
motor coil is energized sequentially in 2 phase increments, which causes a 1-step rotation. A 1-step rotation feeds 0.13 mm of
recording paper.

The timing chart is below.

The motor suspends while it is in the receive mode (about 70~80 msec), pin 124 of ASIC IC501 becomes a low level and Q503
turns OFF. Then Q502 also turns OFF, and instead of +24 V, +5 V is supplied through D501 so that the motor is held in place.
When the system is in the stand-by mode, all of the motor drive transistors turn OFF. Consequently, the motor current stops.

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Summary of Contents for KX-FHD333BR

Page 1: ... 2002 Kyushu Matsushita Electric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX FHD333BR for Brazil Compact Plain Paper FAX and Copier ORDER NO KMF0207599C3 ...

Page 2: ... 8 9 NCU SECTION 147 8 10 ITS Integrated Telephone System AND MONITOR SECTION 151 8 11 TAM INTERFACE SECTION 152 8 12 OPERATION BOARD SECTION 154 8 13 LCD SECTION 155 8 14 POWER SUPPLY BOARD SECTION 156 9 REFERENCE MATERIAL DATA 159 9 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 9 2 HOW TO REPLACE THE FLAT PACKAGE IC 160 9 3 TEST CHART 162 10 FIXTURES AND TOOLS 164 11 CABINET MECHANICAL ...

Page 3: ...1 TRANSLATION LISTS 1 1 LCD MESSAGES 3 KX FHD333BR ...

Page 4: ...1 2 ERROR CODE 1 3 BUTTON LISTS 4 KX FHD333BR ...

Page 5: ...ts may be isolated from the chassis by design These will read infinity 4 If the measurement is outside the specified limits there is a possibility of a shock hazard 2 3 FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable 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 ...

Page 6: ...times 2 6 PERSONAL SAFETY PRECAUTIONS 2 6 1 MOVING SECTIONS OF THE UNIT Be careful not to let your hair clothes fingers accessories etc become caught in any moving sections of the unit The moving sections of the unit are the rollers and a gear There is a separation roller and a document feed roller which are rotated by the document feed motor A gear rotates the two rollers Be careful not to touch ...

Page 7: ...s unplug the AC power cord before disassembling for service 2 7 SERVICE PRECAUTIONS 2 7 1 PRECAUTIONS TO PREVENT DAMAGE FROM STATIC ELECTRICITY Electrical charges 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 elec...

Page 8: ...ce muting Redialing function 100 Station telephone directory with Navigator one touch key Caller ID compatible Feature requires a subscription to caller identification services 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 availab...

Page 9: ...ass Weight Approx 3 4 kg Power Consumption Standby Approx 3 6 W Transmission Approx 12 W Reception Approx 40 W When receiving a 20 black document Copy Approx 55 W When copying a 20 black document Maximum Approx 135 W When copying a 100 black document Power Supply 120 V AC 60 Hz Memory Capacity Approx 25 pages memory transmission Approx 28 pages memory reception Based on ITU T No 1 Test Chart in st...

Page 10: ...nce 6 Recording paper exit 7 Tension plate 8 Front cover 9 Document exit 10 Document entrance 11 Back cover open button 12 Back cover 1 Power inlet 2 Telephone line jack 3 External telephone jack 4 Speaker 4 INSTALLATION 4 1 LOCATION OF CONTROLS 4 1 1 FRONT VIEW 4 1 2 REAR VIEW 10 KX FHD333BR ...

Page 11: ... during dialing 10 MUTE To mute your vice to the other party during a conversation Press this button again to resume the conversation 11 MONITOR To initiate dialing without lifting the handset 12 One touch keys To use one touch dial To transmit to multiple entries 13 NAVIGATOR VOLUME To adjust volume To search for a stored name To select the features or feature settings during programming To navig...

Page 12: ...not position fax machine near appliances such as TVs or speakers which generate an intense magnetic field If any other device is connected on the same line this unit may disturb the network condition of the device Caution When you operate this product the power outlet should be near the product and easily accessible 12 KX FHD333BR ...

Page 13: ... C to 35 C Relative humidity 20 to 80 without condensation Power cord length should be less than 5 meters Using a longer cord may reduce the voltage or cause malfunctions Avoid direct sunlight Do not install near devices which contain magnets or generate magnetic fields Do not subject the unit to strong physical shock or vibration Keep the unit clean Dust accumulation can prevent the unit from fun...

Page 14: ...nstall the A4 paper guide to the right side of he paper tray 1 Insert the bottom tab on the A4 paper guide into the lower slot 2 Press the guide into the upper slot 4 3 3 INSTALLING THE RECORDING PAPER SUPPORT Attach the recording paper support into the slots on the recording paper exit The recording paper will be ejected from the top of the unit after printing The recording paper support prevents...

Page 15: ...t ink film roll into the left slot of the unit Insert the rear ink film roll 5 Turn the gear of blue core in the direction of the arrow Make sure that the ink film is wrapped around the blue core at least once 6 Close the back cover securely by pushing down on the dotted area at both ends Close the front cover securely The ink film is safe to touch and will not rub off on your hands like carbon pa...

Page 16: ... 1 Fan the stack of paper to prevent a paper jam 2 Pull the tension plate forward and hold open while inserting the paper The paper should not be over the tab If the paper is not inserted correctly readjust the paper or the paper may jam To add paper 1 Pull the tension plate forward and hold open while removing all of the installed paper 2 Add paper to the stack of paper you removed and straighten...

Page 17: ...rged paper Badly curled creased or torn paper Paper with a coated surface Paper with a faint image Paper with printing on the opposite side that can be seen through the other side i e newspaper Check that ink paste or correction fluid has dried completely To transmit the document with a width of less than standard letter size 216 mm we recommend using a copy machine to copy the original document o...

Page 18: ...te a character Press or to move the cursor to the character you want to delete and press STOP To insert a character 1 Press or to move the cursor to the position to the right of where you want to insert the character 2 Press MUTE to insert a space and enter the character 4 Enter your logo up to 30 characters using the dial keypad Example BILL 1 Press 2 2 times Cursor will appear on the display 2 P...

Page 19: ...esired character is displayed 2 Press to move the cursor to the next space The character displayed in step 1 is inserted 3 Return to step 1 to enter the next character Display order of characters 4 3 8 1 TO SELECT CHARACTERS WITH THE DIAL KEYPAD Pressing the dial keys will select a character as shown below 19 KX FHD333BR ...

Page 20: ...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 Aft...

Page 21: ...5 1 2 COMPONENT LOCATIONS 21 KX FHD333BR ...

Page 22: ...AC INLET P 41 6 Glass If the glass is dirty clean with a dry soft cloth Refer to DOCUMENT FEEDER P 27 7 Abnormal wear and tear or loose parts Replace the part Check if the screws are tight on all parts 5 1 2 2 MAINTENANCE CYCLE No Item Cleaning Cycle Replacement Cycle Procedure 1 Separation Roller Ref No 141 3 months 7 years 31 500 documents Refer to HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION RO...

Page 23: ...ensor Location in SENSORS AND SWITCHES P 135 The TX MOTOR rotate CCW and conveys its power to the document separation roller gear and document Exit Roller Gear Fig A Transmit mode 5 2 1 2 PAPER PICK UP AND PAPER EXIT MODE The RX MOTOR rotate CCW and swing Gear B engages Gear C and conveys its power to the Pickup Roller Gear The Swing Gear B engages Gear D and conveys its power to the Exit Roller G...

Page 24: ... and conveyers its power to Platen Roller Gear and Ink Film Driver Gear The Swing Gear B engages Gear E and conveys its power to the Exit Roller Gear Fig C Print mode 5 2 1 4 COPY MODE RX side Paper Pickup mode Print mode Paper Exit mode TX side Transmit mode 24 KX FHD333BR ...

Page 25: ...ver green inside of the unit 3 Open the back cover 4 Remove the jammed recording paper 5 Turn the gear of blue core in the direction of the arrow Make sure that the ink film is wrapped around the blue core at least once 5 3 JAMS 5 3 1 RECORDING PAPER JAMS When the recording paper has jammed in the unit The display will show the following 25 KX FHD333BR ...

Page 26: ... not fed into the unit properly The display will show the following Remove the recording paper and straighten Pull the tension plate forward and hold open while inserting the paper Press SET to clear the message 5 3 2 DOCUMENT JAMS SENDING 1 Open the front cover by pulling up the center part Remove the jammed document carefully 2 Close the front cover securely Note Do not pull out the jammed paper...

Page 27: ...o not use paper products such as paper towels or tissues 4 Clean the glass with a soft dry cloth Caution Do not use paper products such as paper towels or tissues 5 Close the front cover securely 6 Connect the power cord and the telephone line cord 5 4 CLEANING 5 4 1 DOCUMENT FEEDER If misfeeding occurs frequently or if smudges or black lines appear on a transmitted document or on the original of ...

Page 28: ...pyl rubbing alcohol and let it dry thoroughly Caution To prevent a malfunction due to static electricity do not use a dry cloth and do not touch the thermal head directly 6 Replace the ink film Turn the gear of blue core in the direction of the arrow Make sure that the ink film is wrapped around the blue core at least once 5 4 2 THERMAL HEAD If smudges or black white lines appear on a copied or re...

Page 29: ...7 Close the back cover securely by pushing down on the dotted area at both ends Close the front cover securely 8 Connect the power cord and the telephone line cord 29 KX FHD333BR ...

Page 30: ...Y AND RECORDING PAPER SUPPORT P 32 A 2 HOW TO REMOVE THE OPERATION PANEL BLOCK P 33 A 3 HOW TO REMOVE THE OPERATION BOARD AND LCD P 34 A 4 HOW TO REMOVE THE IMAGE SENSOR CIS P 35 A 5 HOW TO REMOVE THE THERMAL HEAD P 36 A 6 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER P 37 A 7 HOW TO REMOVE THE PICKUP ROLLER P 38 A 8 HOW TO REMOVE THE CASSETTE LEVER P 39 30 KX FHD333BR ...

Page 31: ...AND RECORDING PAPER SUPPORT P 32 B 1 HOW TO REMOVE THE BOTTOM FRAME P 40 B 2 HOW TO REMOVE THE DIGITAL ANALOG POWER SUPPLY SENSOR BOARDS AND AC INLET P 41 B 3 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER P 42 B 4 HOW TO REMOVE THE GEARS OF MOTOR BLOCK P 43 31 KX FHD333BR ...

Page 32: ...6 2 DISASSEMBLY PROCEDURE 6 2 1 HOW TO REMOVE THE PAPER TRAY AND RECORDING PAPER SUPPORT 32 KX FHD333BR ...

Page 33: ...6 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 33 KX FHD333BR ...

Page 34: ...6 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 34 KX FHD333BR ...

Page 35: ...6 2 4 HOW TO REMOVE THE IMAGE SENSOR CIS 35 KX FHD333BR ...

Page 36: ...6 2 5 HOW TO REMOVE THE THERMAL HEAD 36 KX FHD333BR ...

Page 37: ...6 2 6 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER 37 KX FHD333BR ...

Page 38: ...6 2 7 HOW TO REMOVE THE PICKUP ROLLER 38 KX FHD333BR ...

Page 39: ...6 2 8 HOW TO REMOVE THE CASSETTE LEVER 39 KX FHD333BR ...

Page 40: ...6 2 9 HOW TO REMOVE THE BOTTOM FRAME 40 KX FHD333BR ...

Page 41: ...6 2 10 HOW TO REMOVE THE DIGITAL ANALOG POWER SUPPLY SENSOR BOARDS AND AC INLET 41 KX FHD333BR ...

Page 42: ...6 2 11 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 42 KX FHD333BR ...

Page 43: ...6 2 12 HOW TO REMOVE THE GEARS OF MOTOR BLOCK 43 KX FHD333BR ...

Page 44: ...6 3 INSTALLATION POSITION OF THE LEAD WIRES 44 KX FHD333BR ...

Page 45: ...ge Do not install folded or heavily curled paper Refer to RECORDING PAPER JAMS P 25 The back cover is open Close it There is no space to store new entries in navigator directory Erase unnecessary entries The unit has a document in memory See the other displayed message instructions to print out the document The memory is full of received documents due to lack of recording paper or a recording pape...

Page 46: ...hten it A recording paper jam occurred Clear the jammed paper If the printout jams please refer to RECORDING PAPER JAMS P 25 The unit is checking that there is no slack on the ink film Wait for a moment while the check completes The other party s fax machine is busy or has run out of recording paper Try again The document is jammed Remove the jammed document Refer to DOCUMENT JAMS SENDING P 26 A t...

Page 47: ... 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 Service 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 th...

Page 48: ... unit s speaker during FAX communication or not 554 Modem test See TEST FUNCTIONS P 50 555 Scan check See TEST FUNCTIONS P 50 556 Motor test 0 See TEST FUNCTIONS P 50 557 LED test See TEST FUNCTIONS P 50 558 LCD test See TEST FUNCTIONS P 50 559 Document jam detection select 1 ON 2 OFF 1 2 1 See DOCUMENT JAMS SENDING P 26 561 KEY test See TEST FUNCTIONS P 50 570 BREAK select 1 61 2 67 1 2 2 Sets th...

Page 49: ...77 and THE UNIT CAN COPY BUT THE TRANSMISSION AND RECEPTION IMAGE ARE INCORRECT P 82 718 Receive speed selection 1 9600BPS 2 7200BPS 3 4800BPS 4 2400BPS 1 4 1 Adjusts the speed to start training during FAX reception Refer to RECEIVE PROBLEM P 78 and THE UNIT CAN COPY BUT THE TRANSMISSION AND RECEPTION IMAGE ARE INCORRECT P 82 722 Redial tone detect 1 ON 2 OFF 1 2 1 Sets the tone detection mode aft...

Page 50: ... on the LCD while the button is pressed Refer to BUTTON CODE TABLE P 51 START any key MEMORY CLEAR Service Mode 5 5 0 To reset the value to the default one except the top margin 853 time day 001 logo 002 Fax ID History Directory Please restart a power supply after clearing a memory START LED CHECK Service Mode 5 5 7 All LEDs above the operation panel board flash on and off or are illuminated START...

Page 51: ...rforming this check do not forget to turn the setting off Otherwise dialing in DTMF signal will not work 7 3 2 BUTTON CODE TABLE Refer to BUTTON LISTS P 4 Code Button Name Code Button Name Code Button Name Code Button Name 04 FAX START SET 31 1 3C 64 STATION 1 05 LOWER 32 2 3D REDIAL PAUSE 65 STATION 2 06 COPY 33 3 3E FLASH 66 STATION 3 08 MONITOR 34 4 47 CALLER ID 67 STATION 4 0A MUTE 35 5 4E JUN...

Page 52: ...1 Platen roller 2 Left margin Top margin 3 Thermal head 1 dot 4 Use this test pattern to confirm the torque limiter for ink film and platen roller timing 7 3 3 PRINT TEST PATTERN 52 KX FHD333BR ...

Page 53: ...ne 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 53 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 during the remote ...

Page 54: ...F ON OK 522 Auto standby select 1 ON 2 OFF ON OK 523 Receive equalizer select 1 0km 2 1 8km 3 3 6km 4 7 2km 0km OK 524 Transmission equalizer select 1 0km 2 1 8km 3 3 6km 4 7 2km 0km OK 550 Memory clear NG 551 ROM check NG 552 DTMF signal tone test 1 ON 2 OFF OFF OK 553 Monitor on FAX communication 1 OFF 2 Phase B 3 ALL OFF OK 554 Modem test NG 555 Scanner test NG 556 Motor test NG 558 LCD test NG...

Page 55: ...1 Setup list 1 Start OK 994 Journal list 1 Start OK 995 Journal 2 list 1 Start OK 996 Journal 3 list 1 Start OK 998 History list 1 Start OK 999 Service list 1 Start OK OK means can set NG means can not set Note Refer to SERVICE FUNCTION TABLE P 48 for descriptions of the individual codes Example If you want to set value in the 004 Transmission report mode press the dial key number 1 2 or 3 corresp...

Page 56: ...7 5 THE EXAMPLE OF THE PRINTED LIST 7 5 1 USER MODE Note The above values are the default values 56 KX FHD333BR ...

Page 57: ...7 5 2 SREVICE MODE SETTINGS Note The above values are the default values 57 KX FHD333BR ...

Page 58: ...7 5 3 HISTORY 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 59 58 KX FHD333BR ...

Page 59: ...ed directory stations 21 NUMBER OF COPY The number of pages copied 22 NUMBER OF RECEIVE The number of pages received 23 NUMBER OF SENDING The number of pages sent 24 NUMBER OF CALLER ID The number of times Caller ID was received 25 NUMBER OF RECORDING MESSAGE The number of messages recorded in TAM 26 29 Not Used 30 NUMBER OF PRINTING WARNING LIST The number of warning lists printed until now 31 NU...

Page 60: ...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 61 Difficult problems may be hard to determine so repeated testing is ...

Page 61: ...ate by fax An error code is displayed See COMMUNICATION SECTION P 75 Cannot talk The DTMF tone doesn t work The handset monitor doesn t work etc See ANALOG BOARD SECTION P 105 Operation panel Keys are not accepted See OPERATION PANEL SECTION P 111 Sensor If the electric circuit is the cause the error message corresponding to the sensor will be displayed See SENSOR SECTION P 112 7 6 3 1 SIMPLE CHEC...

Page 62: ...WER SUPPLY BOARD SECTION P 108 SENSOR SECTION P 112 STEPPING MOTOR DRIVE CIRCUIT TX P 133 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER P 42 HOW TO REMOVE THE GEARS OF MOTOR BLOCK P 43 7 6 4 ADF Auto Document Feed SECTION 7 6 4 1 NO DOCUMENT FEED 62 KX FHD333BR ...

Page 63: ...7 6 4 2 DOCUMENT JAM CROSS REFERENCE TEST FUNCTIONS P 50 SENSOR SECTION P 112 DISASSEMBLY INSTRUCTIONS P 30 63 KX FHD333BR ...

Page 64: ...e fed Fig B CROSS REFERENCE DOCUMENT FEEDER P 27 DISASSEMBLY INSTRUCTIONS P 30 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER P 42 Note When confirming if the characters are extended or distorted or if the feed problem is occurred use this test chart format Fig B 64 KX FHD333BR ...

Page 65: ...7 6 4 4 SKEW We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE COMPONENT LOCATIONS P 21 DISASSEMBLY INSTRUCTIONS P 30 65 KX FHD333BR ...

Page 66: ...ER P 38 HOW TO REMOVE THE GEARS OF MOTOR BLOCK P 43 DIGITAL BOARD SECTION P 97 POWER SUPPLY BOARD SECTION P 108 SENSOR SECTION P 112 OPERATION PANEL SECTION P 166 7 6 4 5 THE RECORDING PAPER DOES NOT FEED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it 66 KX FHD333BR ...

Page 67: ...7 6 4 6 PAPER JAM CROSS REFERENCE DISASSEMBLY INSTRUCTIONS P 30 HOW TO REMOVE THE PICKUP ROLLER P 38 TEST FUNCTIONS P 50 SENSOR SECTION P 112 SENSORS AND SWITCHES P 135 67 KX FHD333BR ...

Page 68: ...8 THE SENT FAX DATA IS SKEWED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE SKEW P 65 7 6 4 9 THE RECEIVED FAX DATA IS SKEWED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE MULTIPLE FEED AND SKEW P 68 68 KX FHD333BR ...

Page 69: ...OR COPIED DATA IS EXPANDED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE DOCUMENT FEEDER P 27 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER P 42 69 KX FHD333BR ...

Page 70: ...COPIED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE HOW TO REMOVE THE THERMAL HEAD P 36 TEST FUNCTIONS P 50 A BLANK PAGE IS RECEIVED P 72 THERMAL HEAD P 129 70 KX FHD333BR ...

Page 71: ...71 KX FHD333BR ...

Page 72: ...P 50 A BLANK PAGE IS COPIED P 70 ANALOG BOARD SECTION P 105 7 6 4 13 BLACK OR WHITE VERTICAL LINE We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE THERMAL HEAD P 28 HOW TO REMOVE THE THERMAL HEAD P 36 72 KX FHD333BR ...

Page 73: ...NE ON PRINT OUT We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE DISASSEMBLY INSTRUCTIONS P 30 TEST FUNCTIONS P 50 A BLANK PAGE IS COPIED P 70 DIGITAL BOARD SECTION P 97 73 KX FHD333BR ...

Page 74: ...MAL IMAGE IS PRINTED We recommend making a copy of the Fig B document in MULTIPLE FEED P 64 and using it CROSS REFERENCE HOW TO REMOVE THE THERMAL HEAD P 36 TEST FUNCTIONS P 50 ANALOG BOARD SECTION P 105 74 KX FHD333BR ...

Page 75: ...etimes 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 description of the ...

Page 76: ...FACSIMILE SECTION 7 6 5 1 1 TRANSMIT PROBLEM CROSS REFERENCE DOCUMENT FEEDER P 27 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER P 42 ADF Auto Document Feed SECTION P 62 OPERATION PANEL SECTION P 111 76 KX FHD333BR ...

Page 77: ...7 6 5 1 2 SOMETIME THERE IS A TRANSMIT PROBLEM Note 596 Transmit level set represents a service code Refer to SERVICE FUNCTION TABLE P 48 77 KX FHD333BR ...

Page 78: ... fax switches to the memory receiving mode and the memory capacity becomes full of the unprintable data In this case error messages 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 error causes are shown below Refer to LCD MESSA...

Page 79: ...TANCE OR INTERNATIONL COMMUNICATIONS Cause 1 The other party is executing automatic dialing the call has been received by this unit and the CED or DIS signal response time is too long In most cases this unit detects the CNG signal and can respond to CED or DIS According to the ITU T standard the communication procedure is cancelled when there is no response from the other party within 35 sec so th...

Page 80: ...gnal from FAX1 reaches FAX2 via stations 1 and 2 but the reflection signal at station 2 also returns via station 1 echo As the distance between station 1 and station 2 is far the echo returns to FAX 1 at a max of 600 msec after transmission There is a possibility that this signal is detected erroneously as the signal from FAX2 For a normal call there is also a possibility that the echo of their ow...

Page 81: ...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 select 3 Sendin...

Page 82: ...ON AND RECEPTION IMAGE ARE INCORRECT Long distance or international communication operation This symptom highly depends on the transmission and reception capability of the 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...

Page 83: ...g up FAX SIGNAL RECORDING JIG 3 Connecting PC and JIG 4 PC setting and recording 1 Set LINE IN to be valid in the volume 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 Not...

Page 84: ...T1 TIMER expires 9 54 ERROR NOT YOUR UNIT RCV DCN is received after DIS transmission 11 58 COMMUNICATION ERROR RCV DCN is received after FTT transmission 13 59 ERROR NOT YOUR UNIT SND DCN responds to the post message 14 65 COMMUNICATION ERROR SND DCN is received before DIS reception 2 65 COMMUNICATION ERROR RCV Reception is not EOP EOM PIP PIN RTP or RTN 2 68 COMMUNICATION ERROR RCV No response at...

Page 85: ...85 KX FHD333BR ...

Page 86: ...CROSS REFERENCE TEST FUNCTIONS P 50 86 KX FHD333BR ...

Page 87: ...CROSS REFERENCE TEST FUNCTIONS P 50 87 KX FHD333BR ...

Page 88: ...CROSS REFERENCE TEST FUNCTIONS P 50 88 KX FHD333BR ...

Page 89: ...CROSS REFERENCE TEST FUNCTIONS P 50 89 KX FHD333BR ...

Page 90: ...90 KX FHD333BR ...

Page 91: ...91 KX FHD333BR ...

Page 92: ...CROSS REFERENCE TEST FUNCTIONS P 50 92 KX FHD333BR ...

Page 93: ...mation about a communication but the other two journal reports provide different information 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 RESOLUTION standard...

Page 94: ... friendly signal detection 4 VOX Means the unit detected silence or no voice 5 RMT DTMF Means the unit detected DTMF Remote Fax activation code entered remotely 6 PAL DTMF Means the unit detected DTMF Remote Fax activation code entered by a parallel connected telephone 7 TURN ON Means the unit started to receive after 10 rings Remote Turn On Service Code 573 8 TIME OUT Means the unit started to re...

Page 95: ...M 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 7 6 6 2 JOURNAL 3 Description 7 6 6 3 PRINTOUT EXAMPLE 95 KX FHD333BR ...

Page 96: ...96 KX FHD333BR ...

Page 97: ... 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 soldering 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 or IC malfunction by checking the main signal l...

Page 98: ...in normal Other signal lines are not directly related to that failure even if they have faults or troubles As long as these signals remain normal once the power is turned on each IC can repeatedly output 3 3V H and 0V L IC503 and IC520 output 5V H and 0V L The following shows NG and normal wave patterns NG Wave pattern Refer to NG EXAMPLE 98 KX FHD333BR ...

Page 99: ...d 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 signal at the correct level See the I O Pin No Diagram The signal level sho...

Page 100: ...I O and Pin No Diagram 100 KX FHD333BR ...

Page 101: ...7 6 7 1 CHECK THE STATUS OF THE DIGITAL BOARD CROSS REFERENCE NG Wave pattern Refer to NG EXAMPLE P 98 101 KX FHD333BR ...

Page 102: ...hecks each IC The ROM DRAM and modem are checked If initialization fails for the ICs the system will not boot up In this case please find the cause as follows CROSS REFERENCE NG EXAMPLE P 104 CHECK THE STATUS OF THE DIGITAL BOARD P 101 POWER SUPPLY BOARD SECTION P 108 102 KX FHD333BR ...

Page 103: ...CROSS REFERENCE CHECK THE STATUS OF THE DIGITAL BOARD P 101 Other NG example while the power is ON and the LCD displays the following 103 KX FHD333BR ...

Page 104: ...7 6 7 3 NG EXAMPLE 104 KX FHD333BR ...

Page 105: ...gnal 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 H S trace that signal route locally with the following Check Sheet and locate the faulty point 7 6 8 1 CHECK SHEET...

Page 106: ...oute between the handset microphone and telephone line sending or between the telephone line and the handset speaker receiving or between the microphone and the telephone line sending or between the telephone line and the speaker receiving Check the components at that point CHECK SHEET P 105 is useful for this investigation 2 No pulse dialing 3 No ring tone or No bell CROSS REFERENCE CHECK SHEET P...

Page 107: ...DETECTIVE TAM INTERFACE SECTION 1 The FAX turns on but does not arrive through TAM CROSS REFERENCE CIRCUIT OPERATION P 153 2 A FAX is received but won t switch from TAM to FAX CROSS REFERENCE ANALOG BOARD SECTION P 105 TAM INTERFACE SECTION P 152 107 KX FHD333BR ...

Page 108: ...est 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 than the...

Page 109: ...7 6 9 2 TROUBLESHOOTING FLOW CHART 109 KX FHD333BR ...

Page 110: ...st case of Q101 is a short circuit between the Drain and Gate because damage expands to the peripheral circuit of Q101 This is due to a very high voltage through the Gate circuit which is composed of R128 R109 D106 and IC101 You should change all of the parts listed as follows F101 Q101 R128 R109 D106 IC101 D201 If D201 is broken the oscillation circuit in the power supply cannot operate Check it ...

Page 111: ...7 6 10 OPERATION PANEL SECTION 7 6 10 1 NO KEY OPERATION CROSS REFERENCE TEST FUNCTIONS P 50 7 6 10 2 NO LCD INDICATION CROSS REFERENCE TEST FUNCTIONS P 50 111 KX FHD333BR ...

Page 112: ... recording paper sensor and jam sensor are turned ON OFF by the copy operation Therefore each sensor can be checked for proper mechanical operation As for the electric check check whether each voltage is right or not with following flowchart turning each sensor lever ON OFF manually 7 6 11 1 CHECK THE DOCUMENT TOP SW SW352 Display REMOVA A FOLHA REMOVE DOCUMENT 7 6 11 2 CHECK THE DOCUMENT SET SW S...

Page 113: ...6 11 4 CHECK THE HOOK SWITCH SW101 7 6 11 5 CHECK THE PAPER TOP SENSER PS501 Display PAPEL ENROSCADO PAPER JAM 7 6 11 6 CHECK THE FILM SENSER SW501 Display FILME ENROSCADO CHECK FILM SLACK 113 KX FHD333BR ...

Page 114: ...7 6 12 CIS Contact Image Sensor SECTION Refer to SCANNING BLOCK P 132 CROSS REFERENCE TEST FUNCTIONS P 50 114 KX FHD333BR ...

Page 115: ...7 6 13 THERMAL HEAD SECTION Refer to THERMAL HEAD P 129 115 KX FHD333BR ...

Page 116: ...8 CIRCUIT OPERATIONS 8 1 CONNECTION DIAGRAM 116 KX FHD333BR ...

Page 117: ...rking in the storage area 3 Dynamic RAM IC503 This memory is used mainly for the parameter working in the storage area 4 MODEM IC505 Performs the modulation and the demodulation for FAX communication 5 Read Section CIS image sensor to read transmitted documents 6 Motor Driver IC508 and IC510 Drives the transmission motor and the reception motor 7 Thermal Head Contains heat emitting elements for do...

Page 118: ...8 2 1 GENERAL BLOCK DIAGRAM 118 KX FHD333BR ...

Page 119: ...RESETI XORESET XRESET XBACKEN RESET IC 3 3V BATT 2 5V BATT BATT 24MHz 32 768KHz TX RX TO ANALOG P C B A 12 0 RBA 5 0 A 4 0 5V XRAS XCAS A 9 0 D 7 0 XRD XWR XRAS XCAS IC503 DRAM A 7 4 RBA 5 0 PTOP FILM DETECTION COVER OPEN SENSOR LED ON PS501 Sensor P C B 3 3V CN504 CN503 CN505 CN515 CN516 CN506 CN517 SW501 SW502 TX 3 0 TXE IC508 IC510 MOTOR DRV MOTOR DRIVE CISLEDON IC520 IC520 GATE ARRAY DIR G XCA...

Page 120: ...8 3 2 MEMORY MAP 120 KX FHD333BR ...

Page 121: ... This memory is programmed into the ASIC and uses 8 KB for the image processing See Fig A 7 THERMAL HEAD I F Transmits the recorded data to the thermal head 8 MOTOR I F Controls the transmission motor which feeds the document Controls the receiving motor which feeds the recording paper 9 OPERATION PANEL I F Serial interface with Operation Panel 10 I O PORT I O Port Interface 11 ANALOG UNIT Electro...

Page 122: ...ORT HSTXMUTE 18 FR OP O 3 3V OUTPUT PORT MDMRST 19 CPC I 3 3V INPUT PORT PTOP 20 RVN I 3 3V INPUT PORT REED 21 IRDATXD IOP O 3 3V OUTPUT PORT CISLED 22 IRDARXD IOP80 I 3 3V INPUT PORT DSR 23 TXD IOP I 3 3V INPUT PORT TXD 24 RXD IOP O 3 3V OUTPUT PORT SENLED1 25 XRTS IOP I 3 3V INPUT PORT HOOK 26 XCTS IOP O 3 3V OUTPUT PORT SPMUTE 27 VDD 2 5V 3 3V POWER SOURCE 2 5V 28 TONE1 A 3 3V TONE OUTPUT 29 TO...

Page 123: ...ND 88 VDD 2 5V POWER SOURCE 2 5V 89 ADR6 O 3 3V CPU ADDRESS BUS 6 90 ADR7 O 3 3V CPU ADDRESS BUS 7 91 ADR8 O 3 3V CPU ADDRESS BUS 8 92 ADR9 O 3 3V CPU ADDRESS 9 93 ADR10 O 3 3V CPU ADDRESS 10 94 ADR11 O 3 3V CPU ADDRESS 11 95 ADR12 O 3 3V CPU ADDRESS 12 96 RBA0 O 3 3V ROM RAM BANK ADDRESS 0 97 RBA1 O 3 3V ROM RAM BANK ADDRESS 1 98 RBA2 O 3 3V ROM RAM BANK ADDRESS 2 99 RBA3 O 3 3V ROM RAM BANK ADDR...

Page 124: ...139 ADSEL1 O 3 3V CHANNEL SELECT SIGNAL FOR AIN2 140 VDDA 2 5V 3 3V POWER SOURCE ANALOG 2 5V 141 VREFB A 2 5V A D CONVERTER S ZERO STANDARD VOLTAGE OUTPUT 142 VCL A 3 3V ANALOG PART STANDARD VOLTAGE SIGNAL 143 VREFT A 3 3V A D CONVERTER S FULL SCALE VOLTAGE OUTPUT 144 VSSA GND POWER SOURCE ANALOG GND 8 3 6 RESET CIRCUIT WATCH DOG TIMER The output signal reset from pin 4 of the voltage detect IC IC...

Page 125: ...501 Backup Circuit Operation When the power switch is turned ON power is supplied through Q506 to the RTC inside IC501 At this time the voltage at pin 14 of the IC501 is 2 5V When the power switch is turned OFF the BAT501 supplies power to RTC through D503 and Q506 The voltage at pin 14 of IC501 is about 2 2V When the power switch is OFF and the voltage of 3 3V decreases pin 14 of RTC IC501 become...

Page 126: ...nt 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 IC501 The CPU decides the strobe width of the thermal head according to this value Therefore this circuit can keep the thermal head at an even temperature in order to stabilize ...

Page 127: ...y are stored in RAM 4 The white black data stored as above via routes6 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 route9 and is printed out on recording paper Note Standard Reads 3 85 times mm Fine Reads 7 7 times mm Super Fine Reads 15 4 times mm Transmission 1 Same processing as Copy items 1 3 2 The data...

Page 128: ...8 4 2 BLOCK DIAGRAM 128 KX FHD333BR ...

Page 129: ...e line increment is synchronized at IC520 pin 39 NEWTHCLK and sent from IC520 pin 40 NEWTHDAT to the shift register of the ICs The shift registers of the 9 ICs are connected in series and upon the shift of the 1728 dot increment the shift register becomes filled with data and a latch pulse is emitted to each IC from IC520 pin 38 NEWTHLAT With this latch pulse all the contents of the shift register...

Page 130: ...P 131 When print duty is 50 or less IC520 pin 44 and 45 NEWSTB1 NEWSTB2 are composed IC501 pin 103 STB1 and IC501 pin 104 STB2 logic AND Print speed of one line 4 608msec ii Print Duty more than 50 The sequence is shown on TIMING CHART P 131 When print duty is more than 50 IC520 pin 45 NEWSTB1 and IC501 pin 103 STB1 are the same signal IC520 pin 44 NEWSTB2 and IC501 pin 104 STB2 are the same signa...

Page 131: ...TIMING CHART i Print Duty 50 or less ii Print Duty more than 50 131 KX FHD333BR ...

Page 132: ...tor Q507 turns on This applies voltage to the LED array to light it The contact image sensor is driven by each of the FTG F1 signals output from IC501 and the original image illuminated by the LED array undergoes photoelectric conversion to output an analog image signal SIG The analog image signal is input to the system ASIC on AIN1 pin 3 of IC501 and converted into 8 bit data by the A D converter...

Page 133: ...lses are output from ASIC IC501 pins 125 128 130 causing driver IC510 pins 16 13 to drive the Motor Coil The motor coil is energized sequentially in 2 phase increments which causes a 1 step rotation A 1 step rotation feeds 0 13 mm of document paper The timing chart is below The motor suspends while it is in the receive mode about 70 80 msec pin 131 of ASIC IC501 becomes a low level and Q507 turns ...

Page 134: ...lses are output from ASIC IC501 pins 120 123 causing driver IC508 pins 16 13 to drive the Motor Coil The motor coil is energized sequentially in 2 phase increments which causes a 1 step rotation A 1 step rotation feeds 0 13 mm of recording paper The timing chart is below The motor suspends while it is in the receive mode about 70 80 msec pin 124 of ASIC IC501 becomes a low level and Q503 turns OFF...

Page 135: ...50 815 Sensor Check Sensor Circuit Location Sensor Sensor or Switch Name Message Error Operation Panel SW353 Document set SW CHECK DOCUMENT SW352 Document top SW REMOVE DOCUMENT Digital PCB PS501 Paper Top PAPER JAMMED Analog P C B SW101 Hook Sensor P C B SW501 Film Detection CHECK FILM SLACK SW502 Cover Open SW CHECK COVER Sensor Locations 135 KX FHD333BR ...

Page 136: ... set the SW turns ON and the input signal of IC301 9 pin Operation becomes a low level When there is no document the SW turns ON and the input signal of IC301 9 pin Operation becomes a high level Operation Board Photo transistor Signal IC301 9 pin No document OFF High level Set document ON Low level 8 6 3 COVER OPEN SW SW502 COVER OPEN When the operation panel cover is closed and a film is set the...

Page 137: ...OFF High level 8 6 5 PAPER TOP SENSOR PS501 PAPER JAMMED When the recording paper is loaded on the print head the shelter plate shuts the sensor light and the photo transistor turns OFF The input signal of IC501 19 pin becomes a high level Usually the shelter plate is lifted the photo transistor turns ON and the input signal of IC501 19 pin becomes a low level Photo transistor Signal IC501 19 pin ...

Page 138: ...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 Determined in 1968 Transmission for about 6 minutes at a scanning line density of 3...

Page 139: ...nsmission 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 catalog ...

Page 140: ...f 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 followi...

Page 141: ...0 0 0 0 1 1 0 1 1 Maximum 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...

Page 142: ...lizer 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 speed by one stage and initiates training...

Page 143: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 143 KX FHD333BR ...

Page 144: ...HECK SHEET P 105 2 Facsimile Reception The analog image data which is received from the telephone line passes through the NCU section and enters pin 60 of the modem IC505 The signals that enter pin 60 of the modem IC505 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 pla...

Page 145: ...status information for the various sections is also held in ASIC IC501 Simple explanations for the various sections are given below 2 Circuit Operation NCU Section This is the interface between the telephone line and external telephone This is composed of a bell detection circuit pulse dial generation circuit EXT TAM OFF HOOK detect circuit vox circuit amplifier circuit for line transmission and r...

Page 146: ... FC2 FC1 GND VCC 3 4 1 2 7 6 5 8 SPMUTE LINEOUT LINEIN SPKRP MICP SPKRM MICM R582 R576 C573 C577 PIA 61 62 60 69 72 71 OF MREN C570 R575 C670 R573 5V R571 R571 R572 C568 Q508 R574 C601 R566 IC501 32 31 C579 IC511 12V R597 R587 R584 R586 C576 HSRXEN R593 C586 Q510 R591 HSTXMUTE C581 R583 IC511 12V R585 MDMTXEN TONE1EN R579 R580 C571 C572 R569 TONE1 TONE2 R600 R568 Q511 TONE2EN MODEM IC IC505 L104 L...

Page 147: ... ASIC IC501 on the digital board is read by ASIC and judged as a bell TEL LINE PC101 1 2 4 IC501 42 8 9 4 TAM INTERFACE CIRCUIT This circuit is to switch between FAX receiving and the external TAM s message recording automatically This circuit consists of an EXT TAM OFF HOOK detect circuit monitor transformer multiplexer amplifier and VOX detect circuit For details please refer to TAM INTERFACE SE...

Page 148: ...R579 and enters IC511 pin 2 where the signal is amplified to about 24 8dB Then it is output from pin 1 of IC101 and transmitted to T101 via C125 and R121 If the side tone circuit is not applied the transmission signal will return to the reception amplifier via C112 and R112 When the side tone circuit is active the signal output from IC101 pin 1 passes through C125 R123 C122 C115 and R115 and goes ...

Page 149: ...ted 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 message 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 multiple data in the ...

Page 150: ...150 KX FHD333BR ...

Page 151: ...olding the handset and can hear the caller s voice from the line 2 Signal path Refer to CHECK SHEET P 105 8 10 3 HANDSET CIRCUIT 1 Function This circuit controls the conversation over the handset i e the transmitted and received voices to and from the handset 2 Signal path Transmission signal Refer to CHECK SHEET P 105 3 Signal path Reception signal Refer to CHECK SHEET P 105 8 10 4 MONITOR CIRCUI...

Page 152: ...disconnect the external TAM automatically 2 After sending the OGM the answering machine starts to record the message of the other party ICM recording After the OGM of the external TAM is finished the unit starts to detect approximately 5 seconds of no sound detection B If no sound is detected the unit will switch to FAX receiving and disconnect the external TAM automatically If the unit cannot det...

Page 153: ...hen PC105 detects this voltage During detection PC105 4 becomes low DC LOOP Tip L102 PC105 2 1 L105 Tip1 EXT TAM Ring 1 L104 RLY101 5 3 L103 POS101 Ring 2 CNG VOX signal detection circuit The CNG signal from the other party s FAX is detected in MODEM IC505 digital board Signal path Refer to CHECK SHEET P 105 3 Remote receiving This is the parallel connected DTMF signal for the TEL or EXT TEL mode ...

Page 154: ...C IC501 on the DIGITAL BOARD The key matrix table is shown below CN301 CN504 IC501 ASIC LCD MODULE GATE ARRAY IC301 CN302 DOCUMENT TOP SW DOCUMENT SET SW 8x5 KEYS MATRIX LED LED2 DIGITAL BOARD OPERATION BOARD XL9 10 KIN0 7 KSL0 4 KX FHD333BR OPERATION BOARD BLOCK DIAGRAM Refer to BUTTON LISTS P 4 Key Matrix LED Caller IQ LED ON OFF port LED2 IC301 36 154 KX FHD333BR ...

Page 155: ...the crystal drive R303 R305 and R306 are density control resistors Consequently in this unit the timing positive clock is generated by the LCD interface circuitry in the gate array IC301 DIsplay mode Density Normal Darker 2 lines X1 0 LED1 IC301 22pin H L XLD15 IC301 21pin L L X1 5 LED1 H H XLD15 Hi Z L 155 KX FHD333BR ...

Page 156: ...ircuit The filter circuit decreases the noise voltage and the noise electric field strength Rectifier Circuit The input current is rectified by D101 D104 and charges C106 to make DC voltage Then it supplies power to the converter circuit Kick on voltage circuit Bias is applied to the Q101 gate via this circuit when the AC power is turned on and Q101 begins operating 156 KX FHD333BR ...

Page 157: ...s 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 IC according to the error amp rectifier Then depending on how TON is controlled stabilization occurs Also when the current load becomes too large in order to decrease the voltage output the increase in is controlled and the output voltage is s...

Page 158: ...ltage of the 24V circuit increases the current of the photo coupler PC101 increases the pulse width of the output control IC becomes narrower and the ON period of Q101 becomes shorter Over Current Limiter O C L The highest drain current Q101 is limited by a limiter circuit IC101 of 24V The 24V output is limited by this circuit Over Voltage Circuit If the 24V output increases because the error dete...

Page 159: ...9 REFERENCE MATERIAL DATA 9 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FHD333BR ...

Page 160: ...the foil by overheating Flux HI115 Specific gravity 0 863 Original flux should be replaced daily 9 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 the joint between the IC and its pins fi...

Page 161: ...g 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 9 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 161 KX FHD333BR ...

Page 162: ...9 3 TEST CHART 9 3 1 ITU T No 1 TEST CHART 162 KX FHD333BR ...

Page 163: ...9 3 2 ITU T No 2 TEST CHART 163 KX FHD333BR ...

Page 164: ...10 FIXTURES AND TOOLS 164 KX FHD333BR ...

Page 165: ...11 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 11 1 GENERAL SECTION 165 KX FHD333BR ...

Page 166: ...11 2 OPERATION PANEL SECTION 166 KX FHD333BR ...

Page 167: ...11 3 BACK COVER SECTION 167 KX FHD333BR ...

Page 168: ...168 KX FHD333BR ...

Page 169: ...11 4 UPPER CABINET SECTION 169 KX FHD333BR ...

Page 170: ...11 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FHD333BR ...

Page 171: ...11 6 MOTOR SECTION 11 7 ACTUAL SIZE OF SCREWS 171 KX FHD333BR ...

Page 172: ...12 ACCESSORIES AND PACKING MATERIALS 172 KX FHD333BR ...

Page 173: ...1180Z1 PUSH BUTTON DIRECTION ABS HB 17 PFBX1179Y1 PUSH BUTTON DIAL ABS HB 18 Not Used 19 Not Used 20 PFHX1620Z SPACER SHEET 13 1 2 BACK COVER SECTION Ref No Part No Part Name Description Remarks 31 PFDE1189Z1 LEVER CASSETTE PS HB 32 PFKV1071Y1 COVER U TURN PS HB 33 PFKS1039W TRAY CASSETTE PLATE PS HB 34 PFHG1088Z RUBBER PARTS PAPER SEPARATION 35 PFUS1414Z TORSION SPRING PICK UP 36 PFUS1409Z TORSIO...

Page 174: ...FHR1355Y ARM POM HB 161 PFHR1186Z SPACER SUPPORT BASE POM HB 162 PFDG1282Z GEAR POM HB 163 PFDG1283Z GEAR POM HB 164 PFDG1284Z GEAR POM HB 165 PFDG1285Z GEAR POM HB 166 PFDG1153Z GEAR POM HB 167 PFDG1286Z GEAR POM HB 168 PFMD1062Z FRAME 169 PFDG1154Z GEAR POM HB Ref No Part No Part Name Description Remarks 170 35S1S15DGNH DC MOTOR RX 171 35S1S15DGNF DC MOTOR TX 13 1 6 ACCESSORIES AND PACKING MATER...

Page 175: ...00 L517 ERJ3GEYJ101 100 L518 ERJ3GEY0R00 0 L520 ERJ3GEY0R00 0 L525 ERJ3GEYJ101 100 L526 ERJ3GEYJ101 100 L527 ERJ3GEYJ101 100 L528 ERJ3GEYJ101 100 L529 ERJ3GEYJ101 100 Ref No Part No Part Name Description Remarks L530 ERJ3GEY0R00 0 R501 ERJ3GEYJ562 5 6k R502 ERJ3GEYJ472 4 7k R503 ERJ3GEYJ101 100 R504 ERJ3GEYJ181 180 R505 ERJ3GEYJ101 100 R506 ERJ3GEYJ181 180 R507 ERJ3GEYJ101 100 R510 ERJ3GEYJ101 100...

Page 176: ... Part Name Description Remarks C525 ECUV1H150JCV 15P S C526 ECUV1H102KBV 0 001 S C527 ECUV1H104ZFV 0 1 S C529 ECUV1H104ZFV 0 1 S C531 ECUV1H104ZFV 0 1 S C533 ECUV1H104ZFV 0 1 S C534 ECEA1CK101 100 S C535 ECUV1H104ZFV 0 1 S C536 ECUV1H104ZFV 0 1 S C537 ECUV1H104ZFV 0 1 S C538 ECUV1H104ZFV 0 1 S C539 ECUV1H101JCV 100P S C540 ECUV1H100JCV 10P S C541 ECUV1H100JCV 10P S C542 ECUV1H104ZFV 0 1 S C543 ECU...

Page 177: ... S Ref No Part No Part Name Description Remarks R105 ERG2SJ101 100 R106 ERDS1TJ123 12k S R107 ERDS1TJ473 47k S R108 ERJ3GEYJ393 39k R109 ERDS2TJ221 220 S R111 ERJ3GEYJ564 560k R112 ERJ3GEYJ124 120k R114 ERJ3GEYJ183 18k R115 ERJ3GEYJ124 120k R116 ERJ3GEYJ224 220k R117 ERJ3GEYJ224 220k R118 ERJ3GEYJ222 2 2k R119 ERJ3GEYJ334 330k R121 ERDS2TJ271 270 S R123 ERJ3GEYJ303 30k R124 ERJ3GEYJ124 120k R125 E...

Page 178: ... ERJ3GEYJ271 270 R303 ERJ3GEYJ183 18k R305 ERJ3GEYJ222 2 2k R306 ERJ3GEYJ222 2 2k R313 ERJ3GEYJ221 220 R314 ERJ3GEYJ472 4 7k R315 ERJ3GEYJ101 100 R316 ERJ3GEYJ472 4 7k R317 ERJ3GEYJ101 100 R318 ERJ3GEYJ4R7 4 7 R320 ERJ3GEY0R00 0 R321 ERJ3GEY0R00 0 R322 ERJ3GEY0R00 0 R323 ERJ3GEY0R00 0 R324 ERJ3GEY0R00 0 R325 ERJ3GEY0R00 0 R326 ERJ3GEY0R00 0 Ref No Part No Part Name Description Remarks CAPACITORS C...

Page 179: ... C124 ECUV1E104KBV 0 1 S C201 PFCEA35F471 470 S C202 ECKN3A102KBP 0 001 C203 PFCEA16A470 470 S C204 PFCEA35A47M 47 S C205 PFCEA50A1M 1 S C206 ECKN3A102KBP 0 001 13 6 SENSOR BOARD PARTS Ref No Part No Part Name Description Remarks PCB5 PFLP1431MZ SENSOR BOARD ASS Y RTL CONNECTOR CN501 PQJP3G43Z CONNECTOR 3 PIN S SWITCHES SW501 K0MA11000030 REED SW FILM DETECTION SW502 PFSH1A011Z PUSH SWITCH COVER O...

Page 180: ...3 J502 R693 C542 R653 15 14 1 28 R625 R626 R724 R725 C630 R726 R727 R543 R602 R557 L530 R541 R540 R539 R538 R542 C523 R533 C518 2 5V C515 C514 C620 C618 R620 C509 C646 R681 R663 R513 R511 R510 R517 R515 C516 C526 C527 R656 R731 C629 R550 R723 R720 R722 R503 R699 L533 R700 R505 R703 R506 C603 R701 C622 R507 R518 D502 D505 D504 R520 R536 Q504 E Q502 E R502 L522 R721 R655 R654 R669 C525 C611 R544 J50...

Page 181: ...L505 L501 L525 L526 L527 L528 L529 R501 R519 F503 C501 C543 C502 R526 R657 R599 R658 R728 C605 R621 R529 R705 R551 R560 R682 R556 R631 C531 CE1 D7 D6 D0 A0 A1 A2 A3 CE2 WR RD ROMCS A10 A7 A9 A8 A15 A16 A18 A14 A17 A13 A11 A4 A5 A6 A12 A19 D4 D2 D5 D1 D3 C575 C535 R740 C657 C665 R711 AG M 1 CN509 3 L509 R590 24VA 12V AG CN503 Q518 2 5V MFCS 2 5V BAT Q505 RESET PFUP1298ZA 3 3VD CN505 CN515 CN516 CN5...

Page 182: ...AUTO CH J66 J55 J53 J52 J1 J23 J21 1 2 CN105 C103 CN103 J14 J12 R105 J13 ZNR101 C126 C125 JJ106 R160 D113 D103 J18 PC102 PC105 PC103 PC106 PC104 J22 J56 J54 J27 J17 J26 D115 C181 C156 C152 C151 D109 D102 D101 R154 R120 R121 JJ113 Q107 E D114 C157 C155 C153 JJ107 J24 J58 J20 J19 J7 J59 CN101 16 1 R178 R177 JJ103 D111 D106 J25 J11 C132 C136 C133 C171 C170 C174 D105 SW101 L112 KX FHD333BR ANALOG BOAR...

Page 183: ...P1299ZA R102 R127 R113 C128 C121 C111 C120 C127 R129 R128 R111 C101 C129 C113 R130 R119 R101 R126 C117 C141 C143 R144 R143 R114 C116 C119 C104 R118 C124 C112 R125 C115 C122 R122 R123 C123 R124 R112 R115 C114 R116 R146 IC101 R145 C144 R140 R139 C178 R163 Q110 Q111 C107 C137 C138 C134 R131 R134 R135 R147 R136 R170 R172 R173 C172 C173 R176 C175 C176 R175 R174 R165 R164 C159 R171 IC102 8 1 4 5 R132 C1...

Page 184: ...6 SW324 RECORD MUTE FLASH REDIAL PAUSE ERASE PLAY MESSAGE SP PHONE MONITOR SW323 SW321 SW322 NAVIGATOR SW303 LED301 J315 SW325 SW327 PFUP1300ZA AUTO ANSWER SW332 SW329 S4 S5 LOWER MENU NEXT PREV SW330 SW331 J311 J312 J303 PCB CH SW320 SW319 SW328 SW333 CALLER ID HELP SW301 FAX START SET CN303 CN301 C303 C354 COPY STOP J304 J305 SW326 SW305 SW310 SW315 SW308 SW313 SW318 SW306 SW311 SW316 SW307 SW31...

Page 185: ...R307 R305 C309 33 34 23 22 12 11 1 44 C353 D301 C351 C310 C311 C317 SW353 R317 R316 R313 R326 10 1 R325 R324 R323 R322 R318 SW352 R314 R321 R320 R304 C304 C302 R302 R312 C314 KX FHD333BR OPERATION BOARD PCB3 BOTTOM VIEW 14 4 SENSOR BOARD PCB5 SW502 SW501 CN501 CHECK PFUP1301ZA 1 3 KX FHD333BR SENSOR BOARD PCB5 KX FHD333BR 185 ...

Page 186: ...106 L103 C119 C108 T101 C206 IC202 D201 C202 R224 R203 R202 5V GND GND 1 7 C201 C204 24 D202 C203 CN301 PRIMARY SECONDARY BOTTOM VIEW C101 ZNR101 R101 CN31 AC125V 5A SRF1257UC CAUTION F101 L101 D104 D103 D102 D101 C102 C103 R102 R103 C106 R105 C108 R104 D105 D106 R109 R106 R108 T101 G D S Q101 C109 D108 PC101 IC201 VR201 A K R PRIMARY SECONDARY C119 L103 1 C105 D107 J1 J2 J3 J4 N L C206 IC202 D201...

Page 187: ...DIAGRAMS 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 187 KX FHD333BR ...

Page 188: ...C R154 NC 5VA R155 NC R159 NC C153 NC R158 NC C123 NC C120 NC C121 NC R121 270 1 4W C119 NC R125 0 Q109 NC R128 NC R127 NC R126 NC R113 NC R129 NC 5VA C126 NC C127 NC C128 NC C129 NC R130 NC C159 K0 01u R164 100 R165 4 7K 5VA SW101 1 3 2 4 PC106 NC 1 2 3 4 5VA R166 NC D109 NC Q106 JJ104 0 JJ106 0 C175 K680P R174 NC R171 10K NC R170 NC C174 5VA JJ108 0 10K R172 IC102 1 CD 2 FC2 3 FC1 4 VIN 5 V01 6 ...

Page 189: ...L101 NC 3 2 4 1 JJ101 0 JJ102 0 R104 22 C105 NC NC C106 NC C107 5VA 5VA C133 6 3V47u NC C141 K0 01u C138 K0 01u C137 5VA D108 NC C151 NC C152 NC D107 NC 4 3 1 2 R151 47K PC103 NC 1 2 3 4 ZNR101 NC Q104 NC Q105 NC R146 NC R147 NC R144 NC R145 NC C143 NC R148 NC R135 NC C135 NC C144 NC D110 NC D111 NC T102 NC 2 1 5 3 R137 330 C136 6 3V47u R149 68 L112 0 R109 220 1 4W C109 K0 033u PC105 1 2 3 4 CN103...

Page 190: ...54 PC5 55 MCHG 56 RESET 57 GND 58 FLASHCS 59 PB4 A12 60 PB3 A11 61 PB2 A10 62 PB1 A9 63 PB0 A8 64 A3 C630 NC C603 NC C629 NC C505 NC IC523 20 A0 19 A1 18 A2 17 A3 16 A4 15 A5 14 A6 13 A7 3 A8 2 A9 31 A10 1 A11 12 A12 4 A13 5 A14 11 A15 10 A16 6 A17 9 A18 24 VSS 8 VDD 32 OE 30 CE 7 WE 29 D7 28 D6 27 D5 26 D4 25 D3 23 D2 22 D1 21 D0 PG L507 0 C628 Z0 1u RA509 100 1 2 3 4 5 6 7 8 RA510 100 1 2 3 4 5 ...

Page 191: ...VD XTEST 2 5V 2_5VBAT 3_3VBAT CN508 1 5v 2 TXD 3 RXD 4 RTS RA514 100 1 2 3 4 5 6 7 8 RA515 100 1 2 3 4 5 6 7 8 RA516 100 1 2 3 4 5 6 7 8 RA517 100 1 2 3 4 5 6 7 8 5VD TEST CN504 1 MICIN 2 AG 3 5V 4 DG 5 KSTART 6 KLATCH 7 KRXD 8 KTXD 9 KSCLK 10 RESET C527 Z0 1u C526 K1000p C516 Z0 1u C513 Z0 1u C621 Z0 1u C524 Z0 1u C533 Z0 1u C646 K0 01u C523 J15p C609 Z0 1u C611 Z0 1u C531 Z0 1u C537 Z0 1u C605 Z...

Page 192: ...150K R585 470K R581 10K R575 10K R566 1K R571 1M R574 1 5K R587 47K R579 30K R573 2 2K R569 68K R586 15K R570 470K R698 R577 0 R584 3 9K R572 1 8M R622 330 R590 220K R597 330K R600 47K R593 56K R697 R594 6 8K R583 33K Q508 Q509 Q511 Q524 Q510 C587 NC C562 NC 10K RA513 1 2 3 4 5 6 7 8 C561 NC C624 NC C670 K1000p C563 NC C600 J56p R732 NC IC509 1 2 3 4 5 6 7 VSS 8 9 10 11 12 13 14 VDD R695 3 3VD R69...

Page 193: ...SR3IN 123 RESERVED 123 124 RESERVED 124 125 DGND6 126 DVAA 127 AGND5 128 EYESYNC EYECLK EYEXY 5VA AG_M AG_M AG_M AG_M AG_M AG_M XCLK 3 3VD FTG VIDEO 3 3VD 5VD 5 CTS 6 DSR 7 DTR 8 GND 5VD AG_M AG_M 3 3VD 3VDCIS 5VD C577 K1000p C545 Z0 1u C553 K4700p C667 NC C540 J10p C549 K0 1u C665 NC C664 NC C589 Z0 1u C535 Z0 1u C550 J33p C656 Z0 1u C547 Z0 1u C546 Z0 1u C583 Z0 1u C573 K0 1u C575 Z0 1u C559 Z0 ...

Page 194: ... K0 0068u R353 22K Q301 R354 150 R355 560K R356 3 3K C353 J330P C351 K0 01u R306 2 2K C311 Z0 1u NC R307 SW327 R312 270 LED301 NEW MESSAGES CN301 1 MICIN 2 AG 3 5V 4 DG 5 KSTART 6 KLATCH 7 KRXD 8 KTXD 9 KSCLK 10 RESET 5V IC301 30 RESET 31 SCLK 32 RXD 33 TXD 34 LATCH 35 START 42 KIN0 3 KIN1 7 KIN2 8 KIN3 11 KIN4 12 KIN5 13 KIN6 14 KIN7 43 KSL0 41 LED5 38 LED4 37 LED3 36 LED2 29 D7 28 D6 27 D5 26 D4...

Page 195: ...0p L101 ZNR101 R101 1M 470V L N CN31 1 GND R127 PC101 C124 0 1 1 8K C101 0 1 F101 5A125V D104 R105 0 22 2 R124 200 C121 4700p 4 5 3 6 2 7 1 8 R122 820 R125 10K D107 IC101 D108 R108 22 IC202 R109 22 D106 Q101 G R104 47K 2 T101 TRANS D201 1 24V 2 24V 3 24V 4 GND CN301 5 GND 6 GND 7 5V C202 1000p 1K D202 R223 IC201 C205 1 50 100 D S C204 47 35 C206 R205 1000p 1K 0 KX FHD333BR POWER SUPPLY BOARD PCB4 ...

Page 196: ...16 5 SENSOR BOARD PCB5 CN501 1 COVER OPEN 2 READ 3 GND SW501 READ SW502 COVER OPEN SW 1 3 2 4 KX FHD333BR SENSOR BOARD PCB5 196 KX FHD333BR Y KXFHD333BR ...

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