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Panasonic KX-FP81BX, Service Manual

The Panasonic KX-FP81BX Service Manual is a comprehensive guide for users of this versatile fax machine. Available for free download at manualshive.com, this manual provides step-by-step instructions and troubleshooting tips, ensuring smooth operation and maximum productivity. Perfect for those seeking a reliable and cost-effective document management solution.

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14.2. ANALOG BOARD

(       )

L101

L102

SA101

300V

SA102

1000V

RL101

3

5

4

R121

330

+5VA

+5VA

Q103

R123

1.5K

C118

6.3V47

R125

18K

C122 K0.068

R124

18K

RL101

21

C121

K0.01

+24V

R122

1.5K

L104

L105

L106

L107

L108

L109

POS101

C101

250V1.0u

R142

27K

R126

330K

C124

J270P

R127

330K

+5VA

R132

22K

C128

K0.0047

Q102

C126

NC...Not Used

16V10

R110

330(1/4W)

R118

220K

C135

Z0.1

C115

J82P

D101

5.6V

D102

5.6V

T101

8

5

4

1

PC102

1

2

3

4

D104

D103

C123 K0.068

CN104

1

HSMIC(-)

3

HSSP(+)

2

HSSP(-)

4

HSMIC(+)

+2.0V

10K

R133

CN105

1

SP(+)

2

SP(-)

10K

R134

IC102

1

CD

2

FC2

3

FC1

4

VIN

5

V01

6

VCC

7

GND

8

VD2

K1000P

C132

CN102

4

b

3

a

CN103

4

a1

3

b1

C130

50V4.7

R150

12K

R151

6.8K

C151

6.3V47

+2.0V

C141

K0.01

R146

100

R145

4.7K

R144

100

R143

4.7K

C140

K0.01

R135

0

R129

100

R131

47K

R130

330

R104

10K(1/2W)

R101

150(2W)

+5VA

R119

220K

C117

50V10u

C111 K0.1

R111

100K

R112 120K

C112 K0.012

+24V

D105

+2.0V

-2

IC101

1

2

3

4

8

-1

IC101

5

6

7

+5VA

R103

47K(1/2W)

C113

K0.01

R113

30K

R120

2.2K

R128

2.2K

SW101

HOOK SW

3

1

2

4

SW102

MOTOR POSTION SW

3

2

4

1

L103

0

NC

JJ101

(        )

(        )

NC

JJ102

PC101

1

2

3

4

LF101

NC

1

4

2

3

JJ103

JJ104

R102

270(1/4W)

C102

K0.033

R141

10K

NC

JJ105

NC

JJ106

NC

C103

NC

C104

Q101

C134

K0.1

R138

5.6K

R139

560K

R140

330K

+5VA

NC

D106

(       )

NC

R155

+5VA

+5VA

+5VA

CN101

15

+24V

14

AG

13

+5VA

12

LINERX

11

LINETX

10

HSTX

9

HSRX

8

SPOUT

7

SPMUTE

6

ON-MREN

5

LINERLY

4

BELL

3

EXTHOOK

2

HOOK

1

MPOS

C131

K0.027

NC

C133

NC

C129

NC

C150

NC

C152

NC

R156

NC

C153

+5VA

JJ107

JJ108

R157

10K

C127

6.3V47

C136

K0.015

R158

10K

+2.0V

NC

C116

NC

R114

NC

R117

R115

0

R116

100K

C114

K560P

NC

C125

NC

2

1

3

5

K0.01

C120

K0.01

C119

K0.01

C110

150K

R136

110K

R137

C154

K680

C155

K680

-1

TO SPEAKER

TO TEL LINE

TO HANDSET

TO EXT.TEL

TO DIGITAL BOARD

T101-2

-1

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

(       )

FAX TX Signal

FAX RX Signal

5V

0V

EX-TEL OFF-HOOK

2.1V

12V

HANDSET
FAX TX

2.0V

HANDSET, MONITOR
FAX RX

ON-HOOK  : 5V
OFF-HOOK: 0V

KX-FP81BX / KX-FP81CX / KX-FP82CX

198

Summary of Contents for KX-FP81BX

Page 1: ... 2000 Kyushu Matsushita Electric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX FP81BX KX FP81CX KX FP82CX Compact Plain Paper FAX ORDER NO KMF0006416C3 ...

Page 2: ...REMOVAL PROCEDURE 121 5 3 FLAT PACKAGE IC INSTALLATION PROCEDURE 122 5 4 BRIDGE MODIFICATION PROCEDURE 122 6 CIRCUIT OPERATIONS 123 6 1 CONNECTION DIAGRAM 123 6 2 GENERAL BLOCK DIAGRAM 124 6 3 CONTROL SECTION 126 6 4 FACSIMILE SECTION 136 6 5 SENSORS AND SWITCHES 151 6 6 MODEM SECTION 155 6 7 DESCRIPTION OF BLOCK DIAGRAM IN ANALOG SECTION 162 6 8 NCU SECTION 164 6 9 ITS Integrated Telephone System...

Page 3: ...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 irons 3 Use a conductive mat on the worktable 4 Do not touch the IC or LSI pins with bare fingers 1 4 BATTERY CAUTION CAUTION Danger of explosion if the battery is replaced incorrec...

Page 4: ... PERSONAL SAFETY PRECAUTIONS 1 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 them with...

Page 5: ...the AC power cord before disassembling for service 1 7 SERVICE PRECAUTIONS 1 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 electricity N...

Page 6: ...vel Broad cast with Easy Dial 50 sheet paper capacity 20 lb Automatic fax phone switching Distinctive ring detection The speed of 12s page is based upon the ITU T No 1 Test Chart on the condition that memory transmission is performed Subscription to distinctive ring services is required Large Memory 28 pages Performed by DRAM Approx 28 pages of memory reception Approx 25 pages of memory transmissi...

Page 7: ...ht Approx 3 2 kg 8 5 lb Power Consumption Standby Approx 3 5 W Transmission Approx 15 W Reception Approx 40 W When receiving a 20 black document Copy Approx 40 W When copying a 20 black document Maximum Approx 125 W When copying a 100 black document Power Supply 220 240 V AC 50 60 Hz Memory Capacity Approx 28 pages memory reception Approx 25 pages memory transmission Based on ITU T No 1 Test Chart...

Page 8: ...1 11 TEST CHART 1 11 1 ITU T No 1 TEST CHART 8 KX FP81BX KX FP81CX KX FP82CX ...

Page 9: ...1 11 2 ITU T No 2 TEST CHART 9 KX FP81BX KX FP81CX KX FP82CX ...

Page 10: ...NTROLS 1 12 1 OVERVIEW Note The document will be ejected from the front of the unit Install the unit on a desk or floor with a smooth surface and do not place anything in front of the unit 10 KX FP81BX KX FP81CX KX FP82CX ...

Page 11: ...1 12 2 CONTROL PANEL 11 KX FP81BX KX FP81CX KX FP82CX ...

Page 12: ... following types are available TELESPIKE BLOK MODEL TSB TRIPPE MFG CO SPIKE BLOK MODEL SK6 0 TRIPPE MFG CO SUPER MAX PANAMAX or MP1 ITW LINX The warranty does not cover damage due to power line surges or lightning When you operate this product the power outlet should be near the product and easily accessible If you want to connect an answering machine to the unit you will remove the stopper with y...

Page 13: ...lative humidity 20 to 80 without condensation Power cord length should be less than 5 meters 16 4 feet 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 functi...

Page 14: ...to the other slot Note Do not place the unit in areas where the paper tray may be obstructed by a wall etc To use A4 size paper You need to install the A4 paper guide to the right side of the paper tray 1 Insert the bottom tab on the A4 paper guide into the lower slot 2 Push the guide into the upper slot 14 KX FP81BX KX FP81CX KX FP82CX ...

Page 15: ...ust the paper or the paper may jam Note for recording paper Avoid paper with a cotton and or fiber content that is over 20 such as letterhead paper or paper used for resumes Do not use different types or thicknesses of paper at the same time This may cause a paper jam Avoid extremely smooth or shiny paper that is highly textured Avoid paper that is coated damaged or wrinkled Note Avoid double side...

Page 16: ...Remove chips staples or other similar fastening objects Check that ink paste or correction fluid has dried Do not send the following types of documents Use copies for fax transmission Chemically treated paper such as carbon or carbon less duplicating paper Electrostatically charged paper Heavily curled creased or torn paper Paper with a coated surface Paper with a faint image Paper with printing o...

Page 17: ...ce and press six times 5 Press 6 Press Note You can enter your logo by rotating To correct a mistake Press or to move the cursor to the incorrect character then make the correction 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 Insert to insert a space and enter the character To delete a character Move the cursor t...

Page 18: ...ssing the dial keys you can select characters using the EASY DIAL 1 Rotate unit the desired 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 18 KX FP81BX KX FP81CX KX FP82CX ...

Page 19: ...nt Each roll prints about 150 letter size pages Refer to 1 10 OPTIONAL ACCESSORIES P 7 Model No KX FA53A Replacement film 1 roll Model No KX FA55A Replacement film 2 rolls 1 Open the front cover by pulling up the center part 2 Push the back cover open button and open the back cover 3 Pull up the blue gear side and remove the used ink film Remove the used core 19 KX FP81BX KX FP81CX KX FP82CX ...

Page 20: ...e back ink film roll 6 If the ink film is slack tighten it by winding the gear 7 Close the back cover securely by pushing down on the dotted area at both ends Close the front cover securely The following message will be displayed while the unit is checking that there is no slack on the ink film Display Note The ink film is completely safe to touch and will not rub off on your hands like carbon pap...

Page 21: ...munication 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 After completing t...

Page 22: ...1 15 2 MAINTENANCE CHECK ITEMS COMPONENT LOCATIONS 22 KX FP81BX KX FP81CX KX FP82CX ...

Page 23: ...BOARDS AND AC INLET P 110 6 Glass If the glass is dirty clean them with a dry soft cloth Refer to 1 15 3 MAINTENANCE P 24 7 Abnormal wear and tear or loose parts Replace the part Check if the screws are tight on all parts 1 15 2 2 MAINTENANCE CYCLE No Item Cleaning Cycle Replacement Cycle Procedure 1 Separation Roller Ref No 117 3 months 7 years 100 000 documents Refer to 4 6 HOW TO REMOVE THE SEP...

Page 24: ... inside of the unit 1 15 3 2 CLEANING THE THERMAL HEAD AND BLACK BAR If dirty patterns or black or white bands appear on a copied or received document clean the thermal head 1 Disconnect the power cord and the telephone line cord 2 Open the front cover by pulling up the center part 3 Open the back cover by pushing the back cover open button 4 Clean the thermal head with a cloth moistened with isop...

Page 25: ...ack 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 avoid electric shocks and short circuits 4 After troubleshooting double check that you have not forg...

Page 26: ... or more of the following messages will appear on the display Note The explanations given in the are for servicemen only CROSS REFERENCE 1 8 FEATURES P 6 2 2 1 DOCUMENT JAMS P 27 2 2 2 RECORDING PAPER JAMS P 28 3 ADJUSTMENTS P 106 26 KX FP81BX KX FP81CX KX FP82CX ...

Page 27: ...he unit does not release the document during feeding remove the jammed document as follows 1 Open the front cover by pulling up the center part 2 Remove the jammed document carefully 3 Close the front cover securely Note Do not pull out the jammed paper forcibly before opening the front cover 27 KX FP81BX KX FP81CX KX FP82CX ...

Page 28: ...s jammed and the display will show the following massage When paper has jammed under the film cartridge Display Remove the jammed paper as follows 1 Open the front cover by pulling up the center part 2 Push the back cover open button and open the back cover 3 Remove the jammed recording paper 28 KX FP81BX KX FP81CX KX FP82CX ...

Page 29: ...4 If the ink film is slack tighten it by winding the gears 5 Close the back cover securely by pushing down on the dotted area at both ends Close the front cover securely 29 KX FP81BX KX FP81CX KX FP82CX ...

Page 30: ...ns for the same problem as they are not a technician nor 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 2 3 3 1 SIMPLE CHECK LIST P 32 Difficult problems may be hard to determine so repeated testing is ...

Page 31: ...MS TABLE CROSS REFERENCE 2 3 4 ADF Auto Document Feed SECTION P 33 2 3 5 COMMUNICATION SECTION P 46 2 3 7 ANALOG BOARD SECTION P 74 2 3 9 OPERATION PANEL SECTION P 80 2 3 10 SENSOR SECTION P 81 31 KX FP81BX KX FP81CX KX FP82CX ...

Page 32: ...2 3 3 1 SIMPLE CHECK LIST CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 32 KX FP81BX KX FP81CX KX FP82CX ...

Page 33: ...R SUPPLY BOARD SECTION P 77 2 3 10 SENSOR SECTION P 81 2 5 TEST FUNCTIONS P 99 3 ADJUSTMENTS P 106 4 DISASSEMBLY INSTRUCTIONS P 107 6 4 5 STEPPING MOTOR DRIVE CIRCUIT P 141 Note When using thin paper etc sometimes the document will not feed Refer to 3 1 ADJUSTING THE FEEDER PRESSURE P 106 33 KX FP81BX KX FP81CX KX FP82CX ...

Page 34: ...2 3 4 2 DOCUMENT JAM CROSS REFERENCE 2 3 10 SENSOR SECTION P 81 4 DISASSEMBLY INSTRUCTIONS P 107 34 KX FP81BX KX FP81CX KX FP82CX ...

Page 35: ... ADJUSTING THE FEEDER PRESSURE P 106 Fig B CROSS REFERENCE 1 15 3 MAINTENANCE P 24 3 ADJUSTMENTS P 106 4 DISASSEMBLY INSTRUCTIONS P 107 Note When confirming if the characters are extended or distorted or if the feed problem is occurred use this test chart format Fig B 35 KX FP81BX KX FP81CX KX FP82CX ...

Page 36: ...cument in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 1 15 2 MAINTENANCE CHECK ITEMS COMPONENT LOCATIONS P 22 2 3 4 ADF Auto Document Feed SECTION P 33 2 3 4 3 MULTIPLE FEED P 35 4 DISASSEMBLY INSTRUCTIONS P 107 36 KX FP81BX KX FP81CX KX FP82CX ...

Page 37: ...ing it CROSS REFERENCE 1 14 3 INSTALLING THE RECORDING PAPER P 15 2 3 6 DIGITAL BOARD SECTION P 65 2 3 8 POWER SUPPLY BOARD SECTION P 77 2 3 10 SENSOR SECTION P 81 2 5 TEST FUNCTIONS P 99 4 DISASSEMBLY INSTRUCTIONS P 107 4 11 HOW TO REMOVE THE CASSETTE PLATE P 118 9 2 1 BACK COVER SECTION P 178 37 KX FP81BX KX FP81CX KX FP82CX ...

Page 38: ...2 3 4 6 PAPER JAM CROSS REFERENCE 2 3 10 SENSOR SECTION P 81 2 5 TEST FUNCTIONS P 99 4 DISASSEMBLY INSTRUCTIONS P 107 6 5 SENSORS AND SWITCHES P 151 38 KX FP81BX KX FP81CX KX FP82CX ...

Page 39: ...EWED We recommend making a copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 2 3 4 4 SKEW P 36 2 3 4 9 THE RECEIVED FAX DATA IS SKEWED We recommend making a copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 2 3 4 7 MULTIPLE FEED AND SKEW P 39 39 KX FP81BX KX FP81CX KX FP82CX ...

Page 40: ... RECEIVED OR COPIED DATA IS EXPANDED We recommend making a copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 4 DISASSEMBLY INSTRUCTIONS P 107 40 KX FP81BX KX FP81CX KX FP82CX ...

Page 41: ...of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 2 3 4 3 MULTIPLE FEED P 35 2 3 4 12 ABLANK PAGE IS RECEIVED P 43 2 5 TEST FUNCTIONS P 99 4 DISASSEMBLY INSTRUCTIONS P 107 6 4 3 THERMAL HEAD P 138 41 KX FP81BX KX FP81CX KX FP82CX ...

Page 42: ...Fig C 42 KX FP81BX KX FP81CX KX FP82CX ...

Page 43: ...4 2 5 TEST FUNCTIONS P 99 2 3 4 13 BLACK OR WHITE VERTICAL LINE We recommend making a copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 1 15 3 2 CLEANING THE THERMAL HEAD AND BLACK BAR P 24 2 3 4 3 MULTIPLE FEED P 35 4 DISASSEMBLY INSTRUCTIONS P 107 43 KX FP81BX KX FP81CX KX FP82CX ...

Page 44: ... copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 2 3 4 3 MULTIPLE FEED P 35 2 3 4 11 A BLANK PAGE IS COPIED P 41 2 3 6 DIGITAL BOARD SECTION P 65 2 5 TEST FUNCTIONS P 99 4 DISASSEMBLY INSTRUCTIONS P 107 44 KX FP81BX KX FP81CX KX FP82CX ...

Page 45: ...mend making a copy of the Fig B document in 2 3 4 3 MULTIPLE FEED P 35 and using it CROSS REFERENCE 2 3 4 3 MULTIPLE FEED P 35 2 3 7 ANALOG BOARD SECTION P 74 2 5 TEST FUNCTIONS P 99 4 DISASSEMBLY INSTRUCTIONS P 107 45 KX FP81BX KX FP81CX KX FP82CX ...

Page 46: ...s 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 possi...

Page 47: ... 1 DEFECTIVE FACSIMILE SECTION 2 3 5 1 1 TRANSMIT PROBLEM CROSS REFERENCE 1 15 3 MAINTENANCE P 24 2 3 4 ADF Auto Document Feed SECTION P 33 2 3 9 OPERATION PANEL SECTION P 80 47 KX FP81BX KX FP81CX KX FP82CX ...

Page 48: ...2 3 5 1 2 SOMETIME THERE IS A TRANSMIT PROBLEM Note 596 Transmit level set represents a service code Refer to 2 4 4 SERVICE FUNCTION TABLE P 87 48 KX FP81BX KX FP81CX KX FP82CX ...

Page 49: ...the 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 CHECK PAPER COV...

Page 50: ...n be considered for this symptom 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 that t...

Page 51: ...at the time of transmission from FAX1 to FAX2 there is a delay until the echo canceler operates S1 is closed so that a part of the head of the training signal may drop out Normal reception by FAX2 may not be possible and transmission may not be started Countermeasure A When the international line mode is ON in the service mode code No 521 a dummy signal is attached to the head of the training sign...

Page 52: ...ce and international communication operations SYMPTOM COUNTERMEASURE Does not receive in the automatic mode 1 If possible manual transmission should be done from the transmission side 2 If possible two pauses should be inserted at the end of the auto dial number on the transmission side 3 If possible the Function Selector Switch should be switched to FAX Does not transmit 1 Confirm the internation...

Page 53: ... transmitted 8 52 NO RESPONSE RCV Reception is finished when the 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 E...

Page 54: ...54 KX FP81BX KX FP81CX KX FP82CX ...

Page 55: ...CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 55 KX FP81BX KX FP81CX KX FP82CX ...

Page 56: ...CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 56 KX FP81BX KX FP81CX KX FP82CX ...

Page 57: ...CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 57 KX FP81BX KX FP81CX KX FP82CX ...

Page 58: ...CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 58 KX FP81BX KX FP81CX KX FP82CX ...

Page 59: ...59 KX FP81BX KX FP81CX KX FP82CX ...

Page 60: ...60 KX FP81BX KX FP81CX KX FP82CX ...

Page 61: ...CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 61 KX FP81BX KX FP81CX KX FP82CX ...

Page 62: ...is the parameters for the desired codes can be changed The procedure for changing and listing parameters is described on 2 3 5 2 1 ENTERING THE REMOTE PROGRAMMING MODE AND CHANGING SERVICE CODES P 62 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 prog...

Page 63: ...pps 2 20 pps 10pps OK 520 CED frequency select 1 2100Hz 2 1100Hz 2100 OK 521 International mode select 1 ON 2 OFF ON OK 522 Auto standby select 1 ON 2 OFF ON OK 523 Receive equalizer select 1 ON 2 OFF OFF OK 550 Memory clear NG 551 ROM check NG 552 DTMF signal tone test ON 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 ...

Page 64: ...882 Journal 3 NG 890 TEL FAX ring back tone 1 ON 2 OFF ON OK 991 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 2 4 4 SERVICE FUNCTION TABLE P 87 for descriptions of the individual codes Example If you want to set value in the 00...

Page 65: ...y malfunctions are analyzed In past experiences digital IC especially SRAM DRAM and 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 soldering fault instead Soldering faults difficult to detect with the naked eye are common particularly for ASIC and RA Resistor Ar...

Page 66: ...m Those signal lines should remain 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 5V H and 0V L The following shows NG and normal wave patterns 66 KX FP81BX KX FP81CX KX FP82CX ...

Page 67: ...NG Wave pattern Refer to NG EXAMPLE 67 KX FP81BX KX FP81CX KX FP82CX ...

Page 68: ...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 should be...

Page 69: ...I O and Pin No Diagram 69 KX FP81BX KX FP81CX KX FP82CX ...

Page 70: ...odem 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 2 3 6 2 NG EXAMPLE P 72 2 3 6 3 CHECK THE STATUS OF THE DIGITAL BOARD P 73 2 3 8 POWER SUPPLY BOARD SECTION P 77 70 KX FP81BX KX FP81CX KX FP82CX ...

Page 71: ...CROSS REFERENCE 2 3 6 3 CHECK THE STATUS OF THE DIGITAL BOARD P 73 Other NG example while the power is ON and the LCD displays the following 71 KX FP81BX KX FP81CX KX FP82CX ...

Page 72: ...2 3 6 2 NG EXAMPLE 72 KX FP81BX KX FP81CX KX FP82CX ...

Page 73: ...2 3 6 3 CHECK THE STATUS OF THE DIGITAL BOARD 73 KX FP81BX KX FP81CX KX FP82CX ...

Page 74: ...utput 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 2 3 7 1 CHECK SHEET Note Ins...

Page 75: ...set 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 2 3 7 1 CHECK SHEET P 74 is useful for this investigation 2 No pulse dialing 3 No ring tone or No bell CROSS REFERENCE 2 3 7 1 CHECK SHEET P 74 6 ...

Page 76: ...INTERFACE SECTION 1 The FAX turns on but does not arrive through TAM CROSS REFERENCE 6 10 2 CIRCUIT OPERATION P 168 2 A FAX is received but won t switch from TAM to FAX CROSS REFERENCE 2 3 7 ANALOG BOARD SECTION P 74 6 10 TAM INTERFACE SECTION P 167 76 KX FP81BX KX FP81CX KX FP82CX ...

Page 77: ...tanding 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 secondar...

Page 78: ...2 3 8 2 TOROUBLESHOOTING FLOW CHART 78 KX FP81BX KX FP81CX KX FP82CX ...

Page 79: ...f 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 with an e...

Page 80: ...2 3 9 OPERATION PANEL SECTION 2 3 9 1 NO KEY OPERATION CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 2 3 9 2 NO LCD INDICATION CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 80 KX FP81BX KX FP81CX KX FP82CX ...

Page 81: ...ing 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 2 3 10 1 CHECK THE DOCUMENT TOP SW SW353 REMOVE DOCUMENT 2 3 10 2 CHECK THE DOCUMENT SET SW SW352 CHECK DOCUMENT 2 3 10 3 C...

Page 82: ... 3 10 5 CHECK THE PAPER TOP SENSER PS501 PAPER JAMMED 2 3 11 CIS Contact Image Sensor SECTION Refer to 6 4 4 SCANNING BLOCK P 140 CROSS REFERENCE 2 5 TEST FUNCTIONS P 99 82 KX FP81BX KX FP81CX KX FP82CX ...

Page 83: ...83 KX FP81BX KX FP81CX KX FP82CX ...

Page 84: ...2 3 12 THERMAL HEAD SECTION Refer to 6 4 3 THERMAL HEAD P 138 84 KX FP81BX KX FP81CX KX FP82CX ...

Page 85: ...n 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 their code ...

Page 86: ...2 4 3 USER MODE The list below is an example of the SYSTEM SETUP LIST the unit prints out Note The above values are the default values 86 KX FP81BX KX FP81CX KX FP82CX ...

Page 87: ... 1 2 1 See 2 2 1 DOCUMENT JAMS P 27 570 BREAK select 1 61 2 67 1 2 1 Sets the break of pulse dialing according PBX 571 ITS auto redial time set X number of times 00 99 05 Selects the number of times that ITS is redialed not including the first dial 572 ITS auto redial line disconnection time set X second 005 999 65 Sets the interval of ITS redialing 573 Remote turn on ring number set X number of r...

Page 88: ...start training during FAX reception Refer to 2 3 5 1 3 RECEIVE PROBLEM P 49 and 2 3 5 1 6 THE UNIT CAN COPY BUT THE TRANSMISSION AND RECEPTION IMAGE ARE INCORRECT P 52 719 Ringer off in TEL FAX mode 1 ON 2 OFF 1 2 1 Selects the ringer switch off when a call is received in the TEL FAX mode 721 Pause tone detect 1 ON 2 OFF 1 2 1 Selects the tone detection for pause in dialing 722 Redial tone detect ...

Page 89: ...2 4 5 SERVICE MODE SETTINGS Example of a printed out list Note The above values are the default values 89 KX FP81BX KX FP81CX KX FP82CX ...

Page 90: ...2 4 6 HISTORY Note See the following descriptions of this report Item No 1 49 are corresponding to the listed items in 2 4 6 1 DESCRIPTIONS OF THE HISTORY REPORT P 91 90 KX FP81BX KX FP81CX KX FP82CX ...

Page 91: ...shows the very first month date year and time set by the user after they purchased the unit 11 USAGE TIME The amount of time the unit has been powered ON 12 FACTORY NOW This shows how many days from factory production until the user prints out this history list 13 TEL MODE The amount of time the TEL mode setting was used 14 FAX MODE The amount of time the FAX mode setting was used 15 TEL FAX MODE ...

Page 92: ... correctly COMPLETE will be printed For models without a PC interface or when there is a PC interface but the signal cannot be received between the fax and PC INCOMPLETE will be printed The number of pages transmitted If the unit does not have a PC interface NONE will be printed 34 Not Used 35 Not Used 36 FAX MODE Means the unit received a fax message in the FAX mode 37 MAN RCV Means the unit rece...

Page 93: ... 49 ENGINE VERSION IEngine Control CPU Version 93 KX FP81BX KX FP81CX KX FP82CX ...

Page 94: ...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 ENCODE MH MA...

Page 95: ...ndly 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 15 rings Remote Turn On Service Code 573 8 TIME OUT Means the unit started to receive...

Page 96: ...e 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 96 KX FP81BX KX FP81CX KX FP82CX ...

Page 97: ...2 4 7 3 PRINTOUT EXAMPLE 97 KX FP81BX KX FP81CX KX FP82CX ...

Page 98: ...98 KX FP81BX KX FP81CX KX FP82CX ...

Page 99: ...s functions When complaints are received from customers they provide an effective tool for identifying the locations and causes of malfunctions CROSS REFERENCE 2 5 1 DTMF SINGLE TONE TRANSMIT SELECTION P 100 2 5 2 BUTTON CODE TABLE P 101 2 5 3 PRINT TEST PATTERN P 102 99 KX FP81BX KX FP81CX KX FP82CX ...

Page 100: ...or the various test modes CROSS REFERENCE 6 5 SENSORS AND SWITCHES P 151 2 5 1 DTMF SINGLE TONE TRANSMIT SELECTION Note After performing this check do not forget to turn the setting off otherwise dialing in DTMF signal will not work 100 KX FP81BX KX FP81CX KX FP82CX ...

Page 101: ...2 5 2 BUTTON CODE TABLE Note These codes 00 01 are only for the data in the History Report 101 KX FP81BX KX FP81CX KX FP82CX ...

Page 102: ...2 5 3 PRINT TEST PATTERN 1 Platen roller Reference pattern 102 KX FP81BX KX FP81CX KX FP82CX ...

Page 103: ...2 Left margin Top margin Reference pattern 103 KX FP81BX KX FP81CX KX FP82CX ...

Page 104: ...3 Thermal head 1 dot Reference pattern 104 KX FP81BX KX FP81CX KX FP82CX ...

Page 105: ...4 Use this test pattern to confirm the torque limiter for Ink film and platen roller timing Reference pattern 105 KX FP81BX KX FP81CX KX FP82CX ...

Page 106: ...ssure by following the steps below 1 Open the front cover by pulling up the center part 2 Shift the position of the green lever by using an instrument with a pointed end such as a paper clip Left When documents multiple feed Center Standard position pre selected Right When documents do not feed 3 Close the front cover securely 106 KX FP81BX KX FP81CX KX FP82CX ...

Page 107: ...4 DISASSEMBLY INSTRUCTIONS 4 1 HOW TO REMOVE THE BOTTOM FRAME 107 KX FP81BX KX FP81CX KX FP82CX ...

Page 108: ...4 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 108 KX FP81BX KX FP81CX KX FP82CX ...

Page 109: ...4 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 109 KX FP81BX KX FP81CX KX FP82CX ...

Page 110: ...4 4 HOW TO REMOVE THE ANALOG DIGITAL AND POWER BOARDS AND AC INLET 110 KX FP81BX KX FP81CX KX FP82CX ...

Page 111: ...4 5 HOW TO REMOVE THE MOTOR BLOCK 111 KX FP81BX KX FP81CX KX FP82CX ...

Page 112: ...112 KX FP81BX KX FP81CX KX FP82CX ...

Page 113: ...4 6 HOW TO REMOVE THE SEPARATION ROLLER 113 KX FP81BX KX FP81CX KX FP82CX ...

Page 114: ...4 7 HOW TO REMOVE THE IMAGE SENSOR CIS 114 KX FP81BX KX FP81CX KX FP82CX ...

Page 115: ...4 8 HOW TO REMOVE THE TERMAL HEAD 115 KX FP81BX KX FP81CX KX FP82CX ...

Page 116: ...4 9 HOW TO REMOVE THE PLATEN ROLLER BACK COVER 116 KX FP81BX KX FP81CX KX FP82CX ...

Page 117: ...4 10 HOW TO REMOVE THE PICKUP ROLLER 117 KX FP81BX KX FP81CX KX FP82CX ...

Page 118: ...4 11 HOW TO REMOVE THE CASSETTE PLATE 118 KX FP81BX KX FP81CX KX FP82CX ...

Page 119: ...4 12 HOW TO REMOVE THE DOCUMENT TRAY 119 KX FP81BX KX FP81CX KX FP82CX ...

Page 120: ...4 13 INSTALLATION POSITION OF THE LEAD WIRES 120 KX FP81BX KX FP81CX KX FP82CX ...

Page 121: ...y overheating Flux HI115 Specific gravity 0 863 Original flux should be replaced daily 5 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 first and then...

Page 122: ...e 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 5 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 122 KX FP81BX KX FP81CX KX FP82CX ...

Page 123: ...6 CIRCUIT OPERATIONS 6 1 CONNECTION DIAGRAM 123 KX FP81BX KX FP81CX KX FP82CX ...

Page 124: ...or the parameter working in the storage area 4 Dynamic RAM IC503 This memory is used mainly for the parameter working in the storage area 5 MODEM IC505 Performs the modulation and the demodulation for FAX communication 6 Read Section CIS image sensor to read transmitted documents 7 Motor Driver IC508 Drives the transmission motor and the reception motor 8 Thermal Head Contains heat emitting elemen...

Page 125: ...BATT TXM CN502 DRIVER MOTOR CPU RTC OSC IC503 IC501 IC505 RX TX IC509 IC502 IC504 ANALOG P C B See 6 7 1 ANALOG UNIT BLOCK DIAGRAM CN505 CN503 THERMAL HEAD DRAM ROM SRAM 5V BATT RECTIFIER DC DC CONVERTER SWITCHING POWER SUPPLY AC NOISE FILTER CN504 4Mbit 4Mbit 256kbit MODEM RX TX BELL 24MHz 8MHz 24MHz 32 768 kHz 32 768 kHz DIGITAL P C B SI CLK LITHIUM BATTERY PAPER TOP CN501 5V 24V FILM COVER SW C...

Page 126: ...OG1 JOG2 TO CIS SI CLK CISLEDON SIG TO THRMAL HEAD THDAT THCLK THLAT STB1 STB2 TM 24V TO MOTOR TM 3 0 TXE TO POWER SUPPLY 24V 5V PG DG OP RESET 24V XRESETI XORESET XRESET XBACKEN RESET IC 3V BATT 5V BATT VCC BATT 24MHz 32 768KHz TX RX TO ANALOG PCB A 12 0 RBA 5 0 A 11 0 RBA 2 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 SENSOR LED ON PS501 5V CN504 CN503 CN505 C...

Page 127: ...6 3 2 MEMORY MAP 127 KX FP81BX KX FP81CX KX FP82CX ...

Page 128: ...ory 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 Electronic volum...

Page 129: ...for the bank areas 6 3 5 STATIC RAM IC504 This 32KB RAM carries a common area of 8KB and bank areas which each have 12KB The addresses from 0000H to EFFFH are for the common area and from A000H to CFFFH are for the bank area 6 3 6 DYNAMIC RAM IC503 The DRAM serves as CPU and receives memory The address is F200H F3FFH DRAM access window 1 and F600H F7FFH DRAM access window 2 129 KX FP81BX KX FP81CX...

Page 130: ...OP O 5V OUTPUT PORT OF MREN 28 MIDAT IOP O 5V OUTPUT PORT HSRXEN 29 MICLK IOP O 5V OUTPUT PORT SPMUTE 30 TONE1 A 5V TONE OUTPUT 31 TONE2 A 5V TONE OUTPUT 32 VOLUREF A 5V ANALOG REF VOLTAGE 33 VOLUOUT A 5V VOLUME OUTPUT 34 VOLUIN A 5V VOLUME INPUT 35 MILAT IOP I 5V INPUT PORT HOOK 36 XNMI I 5V HIGH FIXED 37 FMEMDO IOP O 5V OUTPUT PORT CISLED 38 FMEMDI IOP O 5V OUTPUT PORT LINERLY 39 FMEMCLK IOP I 5...

Page 131: ...WER SOURCE 5V 98 RBA0 O 5V ROM RAM BANK ADDRESS 0 99 RBA1 O 5V ROM RAM BANK ADDRESS 1 100 RBA2 O 5V ROM RAM BANK ADDRESS 2 101 RBA3 O 5V ROM RAM BANK ADDRESS 3 102 RBA4 O 5V ROM RAM BANK ADDRESS 4 103 RBA5 O 5V ROM RAM BANK ADDRESS 5 104 RBA6 IOP96 O 5V OUTPUT PORT TONE2EN 105 STB1 O 5V STROBE SIGNAL OUTPUT TO THERMAL HEAD 106 STB2 O 5V STROBE SIGNAL OUTPUT TO THERMAL HEAD 107 STB3 O 5V STROBE SIG...

Page 132: ... 136 KRXD I 5V OPERATION PANEL CONTROL 137 ADSEL1 O 5V CHANNEL SELECT SIGNAL FOR AIN2 138 VSSC GND POWER SOURCE ANALOG GND 139 VDDC 3 3V POWER SOURCE ANALOG 3 3V 140 VSSA GND POWER SOURCE ANALOG GND 141 VDDA 3 3V POWER SOURCE ANALOG 3 3V 142 VREFB A 3 3V A D CONVERTER S ZERO STANDARD VOLTAGE OUTPUT 143 VCL A 3 3V ANALOG PART STANDARD VOLTAGE SIGNAL 144 VREFT A 3 3V A D CONVERTER S FULL SCALE VOLTA...

Page 133: ...et completely 2 When pin 108 and 109 of IC501 become low level they will prohibit the SRAM IC504 from changing data The SRAM IC504 will go into the backup mode when they are backed up by a lithium battery 3 The watch dog timer built in the ASIC IC501 is initialized by the CPU about every 1 5 ms When a watch dog error occurs pin 113 of the ASIC IC501 becomes low level The terminal of the WDERR sign...

Page 134: ... switch is OFF and the voltage of 5V decreases the voltage detect IC IC507 outputs Low level and the IC501 outputs the reset signal Pin 28 of the SRAM becomes roughly the same voltage as the battery voltage At this point pin 20 CS of IC504 becomes high level causing the SRAM to go into the backup mode in which the power consumption is lower 3 RTC Inside IC501 Backup Circuit Operation When the powe...

Page 135: ...he 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 the printing density and preve...

Page 136: ...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 58 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 store...

Page 137: ...NCU MODEM ROM CPU DRAM IC503 IC502 IC505 SYSTEM BUS IMAGE PROCESSING SECTION RAM P S CONVERTER CIS IMAGE SENSOR ANALOG SIGNAL PROCESSING SECTION THERMAL HEAD A D 1 2 3 4 5 6 7 8 9 10 11 12 13 IC501 137 KX FP81BX KX FP81CX KX FP82CX ...

Page 138: ...of the 27 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 IC501 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 IC501 pins 105 106 only the dot location of black 1 among l...

Page 139: ...139 KX FP81BX KX FP81CX KX FP82CX ...

Page 140: ...urns 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 1 of IC501 and converted into 8 bit data by the A D converter inside IC...

Page 141: ...125 128 130 causing driver IC508 pins 15 12 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 or document paper The timing chart is below Stepping Motor Drive Mode Function Mode Phase Pattern Speed Copy Standard or Fine 1 2 432 pps t 1 432 Super Fine 1 2 216 pps t 1 216 Paper Feed...

Page 142: ...omes 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 142 KX FP81BX KX FP81CX KX FP82CX ...

Page 143: ... counterclockwise CCW Swing Gear C engages CAM Gear to rotate counterclockwise CCW This operation provides four mode options A Transmit mode B Paper Pickup mode C Receive mode and D Copy mode selected by the Sensor Switch The Sensor Switch Lever s position in the CAM Gear controlled by the software selects a specific mode You can see which mode is selected by confirming the Mode Marker s position ...

Page 144: ...itions of Swing Gears A B and C determine which gears convey their drive power in each mode A Transmit mode See Fig A Swing Gear A engages Gear E and conveys its power to the Separation Roller Gear through Gear G and sets the Separation Roller for feeding documents Fig A Transmit mode 144 KX FP81BX KX FP81CX KX FP82CX ...

Page 145: ...ar The Gear drives as follows Swing Arm C engaging Gear H Platen Idler Gear Pick up Idler Gear Pickup roller Gear The Pickup Roller picks up and pre feeds a recording paper until the recording paper pushes up the Paper Top sensor lever Fig B Paper Pickup mode Note See Sensor Location in 6 5 SENSORS AND SWITCHES P 151 145 KX FP81BX KX FP81CX KX FP82CX ...

Page 146: ...ing Gear B engages Gear C and conveys its power to the Platen Roller Gear and Ink Ribbon Drive Gear through Platen Drive Gear Then the Platen Roller feeds recording paper for printing the received data Fig C Receive mode 146 KX FP81BX KX FP81CX KX FP82CX ...

Page 147: ...Next Swing Gear A and B engages Gear E and Gear C respectively and conveys these power to the Separation Roller Gear and the Platen Roller Gear Then the Separation Roller feeds documents and the Platen Roller feeds recording paper for printing copier data Fig D Copy mode 147 KX FP81BX KX FP81CX KX FP82CX ...

Page 148: ...MECHANICAL MOVEMENTS IN THE MAIN OPERATIONS transmitting documents receiving faxes and copying 6 4 6 3 1 IDLE STATUS Note See Sensor Locations in 6 5 SENSORS AND SWITCHES P 151 148 KX FP81BX KX FP81CX KX FP82CX ...

Page 149: ...6 4 6 3 2 TRANSMITTING DOCUMENTS CROSS REFERENCE 2 3 10 SENSOR SECTION P 81 6 4 6 3 3 RECEIVING FAX Note See Sensor Locations in 6 5 SENSORS AND SWITCHES P 151 149 KX FP81BX KX FP81CX KX FP82CX ...

Page 150: ...6 4 6 3 4 COPYING Note See Sensor Locations in 6 5 SENSORS AND SWITCHES P 151 CROSS REFERENCE 2 3 10 SENSOR SECTION P 81 150 KX FP81BX KX FP81CX KX FP82CX ...

Page 151: ...Error Operation Panel SW352 Document set SW CHECK DOCUMENT SW353 Document top SW REMOVE DOCUMENT Digital PCB SW501 Film End Cover open CHECK COVER or CHECK FILM PS501 Paper Top PAPER JAMMED Analog P C B SW102 Motor Position SW101 Hook Note See 2 5 TEST FUNCTIONS P 99 815 Sensor Check Sensor Locations 151 KX FP81BX KX FP81CX KX FP82CX ...

Page 152: ...on Board Photo transistor Signal IC301 16 pin Out of the Read Position OFF High level At the Read Position ON Low level 2 Document Set SW352 When a document is set the SW becomes ON and the input signal of IC301 15 pin Operation becomes a low level When there is no document the SW becomes ON and the input signal of IC301 15 pin Operation becomes a high level Operation Board Photo transistor Signal...

Page 153: ...s a high level Digital Board Photo transistor Signal IC501 43 pin Cover open or no film OFF High level Cover closed and set a film ON Low level 4 Hook Switch SW101 When the handset is lifted the switch turns ON and the signal at pin 35 of IC501 becomes low When the handset is returned the switch turns OFF and the signal at pin 35 of IC501 becomes high Digital Board SW Signal IC501 35 pin ON Hook O...

Page 154: ... the shelter plate is lifted the photo transistor becomes ON and the input signal of IC501 44 pin becomes a low level Photo transistor Signal IC501 44 pin Set recording paper OFF High level No recording paper ON Low level 6 Motor Position Sensor SW102 This sensor is a detection switch for recording the position of the CAM Signal IC501 21 pin Home position Low level Other High level 154 KX FP81BX K...

Page 155: ...anent organizations of the International Telecommunications Union ITU investigates and makes 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 85 line...

Page 156: ...s 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 etc Hold time This is ...

Page 157: ...ded 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 operatio...

Page 158: ...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 T3 85 20 ms at 3 85 l mm T7 7 1 2 T3 85 40 ms at 3 85 l mm T7 7 1 2 T3 8...

Page 159: ...eck 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 once again Training 2 Used for reconfirming the r...

Page 160: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 160 KX FP81BX KX FP81CX KX FP82CX ...

Page 161: ...1 CHECK SHEET P 74 2 Facsimile Reception The analog image data which is received from the telephone line passes through the NCU section and enters pin 45 of the modem IC505 The signals that enter pin 45 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 p...

Page 162: ...planations 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 reception sidetone circuit etc Modem IC505 This is used for FAX signal tone modul...

Page 163: ...11 CN501 CN101 C577 MRXEN MDMTXEN TONE1 R111 R112 IC101 1 C124 R126 R127 R132 R131 R130 R129 Q102 C125 C122 C121 C118 C127 C133 C123 R124 R125 IC510 1 IC510 2 C561 R570 C566 R565 R588 R575 R571 C567 R572 R568 C570 C568 R566 12V IC511 2 C580 R585 R579 R123 R122 R121 C114 C110 R116 R115 C113 R113 DIGITAL ANALOG 12V IC511 1 C584 R592 R588 R587 C117 1 CD 2 FC2 3 FC1 GND VCC 4 8 7 6 5 Q510 C568 IC509 8...

Page 164: ...el CN501 5 High Level CN101 5 High Level Q103 ON RL101 make 6 8 3 BELL DETECTION CIRCUIT 1 Circuit Operation The signal waveform for each point is indicated below The signal low level section input to pin 39 of ASIC IC501 on the digital board is read by ASIC and judged as a bell TEL LINE PC102 1 2 4 IC501 39 6 8 4 TAM INTERFACE CIRCUIT This circuit is to switch between FAX receiving and the extern...

Page 165: ... enters IC511 pin 2 where the signal is amplified to about 7 4dB Then it is output from pin 1 of IC101 and transmitted to T101 via C117 and R110 If the side tone circuit is not applied the transmission signal will return to the reception amplifier via C136 R111 C111 and R158 When the side tone circuit is active the signal output from IC101 pin 1 passes through C117 R113 C113 C112 and R112 and goes...

Page 166: ...nal path Refer to 2 3 7 1 CHECK SHEET P 74 6 9 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 2 3 7 1 CHECK SHEET P 74 3 Signal path Reception signal Refer to 2 3 7 1 CHECK SHEET P 74 6 9 4 MONITOR CIRCUIT 1 Function This circuit monitors various tones su...

Page 167: ...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 detect the CNG...

Page 168: ...ts this voltage During detection PC101 4 becomes low DC LOOP Tip L101 JJ103 L105 Tip1 EXT TAM Ring 1 L104 RL101 5 3 PC101 1 2 L102 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 2 3 7 1 CHECK SHEET P 74 3 Remote receiving This is the parallel connected DTMF signal for the TEL or EXT TEL mode bet...

Page 169: ...y are controlled by the Gate Array IC301 and ASIC IC501 on the DIGITAL BOARD Fig a The key matrix table is shown below CN301 CN504 IC501 ASIC LCD MODULE GATE ARRAY IC301 CN302 DOCUMENT TOP SW DOCUMENT SET SW 7x5 KEYS MATRIX DIGITAL BOARD OPERATION BOARD XL11 12 KIN0 6 KSL0 4 Key Matrix 169 KX FP81BX KX FP81CX KX FP82CX ...

Page 170: ...s D4 D7 V0 is supplied for the crystal drive R303 R377 and R305 R379 are density control resistors Consequently in this unit the timing positive clock is generated by the LCD interface circuitry in the gate array IC301 Density Normal Dark LED1 IC301 22pin H L 170 KX FP81BX KX FP81CX KX FP82CX ...

Page 171: ...Wave Form C D Voltage Wave Form E F G H Voltage Wave Form 0 0 0 Block Diagram Input Circuit The input current goes into the input rectifier circuit through the filter circuit The filter circuit decreases the noise voltage and the noise electric field strength Rectifier Circuit The input current is rectified by D101 D102 D103 and D104 and charges C106 to make DC voltage Then it supplies power to th...

Page 172: ...ad 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 stabilized...

Page 173: ...e 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 detecting circu...

Page 174: ...7 TERMINAL GUIDE OF THE IC S TRANSISTORS AND DIODES 174 KX FP81BX KX FP81CX KX FP82CX ...

Page 175: ...8 FIXTURES AND TOOLS 175 KX FP81BX KX FP81CX KX FP82CX ...

Page 176: ...9 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 9 1 OPERATION PANEL SECTION 176 KX FP81BX KX FP81CX KX FP82CX ...

Page 177: ...9 2 UPPER CABINET SECTION 177 KX FP81BX KX FP81CX KX FP82CX ...

Page 178: ...9 2 1 BACK COVER SECTION 9 2 1 1 BACK COVER 1 178 KX FP81BX KX FP81CX KX FP82CX ...

Page 179: ...9 2 1 2 BACK COVER 2 179 KX FP81BX KX FP81CX KX FP82CX ...

Page 180: ...9 3 LOWER P C B SECTION CROSS REFERENCE 9 1 OPERATION PANEL SECTION P 176 180 KX FP81BX KX FP81CX KX FP82CX ...

Page 181: ...9 4 MOTOR SECTION 9 5 ACTUAL SIZE OF SCREWS AND WASHER 181 KX FP81BX KX FP81CX KX FP82CX ...

Page 182: ...10 ACCESSORIES AND PACKING MATERIALS 182 KX FP81BX KX FP81CX KX FP82CX ...

Page 183: ... 32 PFHR1189Z GUIDE THERMAL HEAD LEFT 33 PFJHS019Z PRINTER UNIT THERMAL HEAD 34 PFHR1190Z GUIDE THERMAL HEAD RIGHT 35 PFHR1192Y COVER THERMAL HEAD 36 PFHX1342X INSULATOR STATIC ELEC RIGHT 37 PFQT1666Z LABEL BLUE GEAR 38 PFHX1343Z INSULATOR STATIC ELEC 39 PFUS1235Z SPRING THERMAL HEAD 40 PFUS1254Z SPRING POP UP 41 PFUS1236Z SPRING OPERATION PANEL LOCK 42 PFUS1233Z SPRING CIS 43 PFJS10Q72Z CONNECTOR...

Page 184: ... GIFT BOX FOR KX FP82CX P2 PFPN1253Z M CUSHION RIGHT P3 PFPN1208Z CUSHION LEFT P4 XZB20X35A04 PROTECTION COVER P5 PFPH1011Z PACKING SHEET P6 XZB32X45A04 PROTECTION COVER 11 2 DIGITAL BOARD PARTS Ref No Part No Part Name Description Remarks PCB1 PFWP1FP81BX DIGITAL BOARD ASS Y RTL PCB1 1 PFWP2FP81M DIGITAL BOARD ASS Y RTL without ROM Refer to 9 3 LOWER P C B SECTION P 180 ICS IC501 PFVIM66426M1 IC ...

Page 185: ...YJ121 120 Ref No Part No Part Name Description Remarks R600 ERJ3GEYJ473 47k R601 ERJ3GEYJ103 10k R603 ERJ1WYJ391 390 CAPACITORS C502 ECUV1H104ZFV 0 1 S C503 ECEA1CK101 100 S C505 PQCUV1H473MD 0 047 S C506 ECUV1H102KBV 0 001 C507 ECUV1H102KBV 0 001 C508 ECUV1H103KBV 0 001 S C509 ECUV1H561JCV 560P C510 ECUV1H104ZFV 0 1 S C511 ECUV1H103KBV 0 01 C512 ECUV1H102KBV 0 001 C513 ECUV1H104ZFV 0 1 S C514 ECU...

Page 186: ...ERJ3GEYJ124 120k R113 ERJ3GEYJ303 30k R115 ERJ3GEY0R00 0 R116 ERJ3GEYJ104 100k Ref No Part No Part Name Description Remarks R118 ERJ3GEYJ224 220k R119 ERJ3GEYJ224 220k R120 ERJ3GEYJ222 2 2k R121 ERJ3GEYJ331 330 R122 ERJ3GEYJ152 1 5k R123 ERJ3GEYJ152 1 5k R124 ERJ3GEYJ183 18k R125 ERJ3GEYJ183 18k R126 ERJ3GEYJ334 330k R127 ERJ3GEYJ334 330k R128 ERJ3GEYJ222 2 2k R129 ERJ3GEYJ101 100 R130 ERJ3GEYJ331...

Page 187: ...C101 PFVIFA5317P IC IC201 AN1431T IC IC202 PFVITA7805F IC S Ref No Part No Part Name Description Remarks TRANSISTORS Q101 2SK2651 TRANSISTOR SI DIODES D101 PFVD1N4005 DIODE SI S D102 PFVD1N4005 DIODE SI S D103 PFVD1N4005 DIODE SI S D104 PFVD1N4005 DIODE SI S D105 PFVDEG01C DIODE SI S D106 MA165 DIODE SI D107 MA4220 DIODE SI D108 PQVDERA1802 DIODE SI S D201 PFVDSF5LC20U DIODE SI S D202 PFVDD1NL20U ...

Page 188: ...ame Description Remarks EC1 PQZZ2K12Z CONNECTOR 2P EC2 PFZZ10K1Z CONNECTOR 10P EC3 PFZZ15K1Z CONNECTOR 15P EC4 PQZZ7K5Z CONNECTOR 7P EC5 PFZZ11K13Z CONNECTOR 11P EC6 PFZZ5K13Z CONNECTOR 5P EC7 PQZZ11K4Z CONNECTOR 11P EC8 PQZZ2K13Z CONNECTOR 2P KM79811245C0 BASIC FACSIMILE TECHNIQUE for training service technicians Note Tools and Extension Cords are useful for servicing They make servicing easy 188...

Page 189: ...ote 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 3 189 KX FP81BX KX FP81CX KX FP82CX ...

Page 190: ...12 1 MEMO 190 KX FP81BX KX FP81CX KX FP82CX ...

Page 191: ...10 C587 R589 R586 R584 C576 R559 C557 C591 L506 R602 R595 R557 R562 C540 C541 R599 C532 C538 C526 R560 C545 C571 C575 C586 C581 R579 R593 R583 R580 C572 C508 R524 R525 C511 R530 R528 C582 R581 SW501 C502 IC506 C516 5V BAT 3 3 BAT R534 R501 C505 C504 R514 C507 C506 DA501 R518 R517 R515 R513 R510 R508 L512 C534 R598 C535 R545 R541 R544 Q505 3 3V C542 C527 C531 C533 C530 C509 R523 R522 1 8 5 4 BOTTOM...

Page 192: ...A IC509 C543 R550 14 8 1 7 R585 R587 C588 R597 R570 R566 C568 R572 C561 C570 R596 R565 C556 R558 C562 R568 C565 RA504 RA505 C589 C583 C549 C573 Q508 R574 C560 R592 C584 C577 R575 C567 C569 C574 C566 R561 C550 R549 R554 C547 R551 R548 C553 C554 R564 R542 R540 R539 R538 C520 CN502 E C512 R532 R533 C518 3 3V B C539 J501 WD IC507 Q511 R600 R576 R577 R571 R582 R563 R591 C548 50 31 1 51 30 100 C544 IC50...

Page 193: ... C131 C132 C155 C154 C153 C152 C141 C112 C135 C116 C113 R115 C114 C115 C111 C134 C120 C119 R123 L109 L106 C136 R120 R139 R119 Q101 R117 R126 R124 R125 R128 R122 R121 R143 R144 R127 C124 C122 C123 C125 C140 L108 L107 C110 R111 R116 R112 R114 R113 R140 R138 R145 R146 R142 R141 L101 L104 C102 C104 L105 C103 CN101 1 15 5V AG 24V BOTTOM VIEW KX FP81BX KX FP81CX KX FP82CX 193 ...

Page 194: ...J108 J108 J107 J110 J112 J114 J113 J111 JJ101 JJ102 CN102 CN103 SA101 POS101 JJ106 JJ105 JJ103 LF101 R102 PC101 PC102 SW102 CHECKER JJ104 J101 L103 J118 J123 CN101 1 15 J119 J120 J122 J124 J103 J102 R110 AUTO CH PCB CH PFUP1187Z SA102 CN104 R103 RL101 D106 D105 D102 D101 C101 R104 T101 R101 R155 JJ107 COMPONENT VIEW KX FP81BX KX FP81CX KX FP82CX 194 ...

Page 195: ... J327 SW351 J320 PCB CH MIC CH J325 R386 R378 R377 J322 J321 J323 J304 J333 C365 C361 C363 C364 J301 J306 J305 J308 J313 J312 J311 J310 J309 J319 C303 J335 JJ331 J336 J307 LED301 R375 R380 R381 R382 R383 R376 C362 C367 J329 C368 C358 C359 CN301 CN303 1 11 C360 C352 J303 J302 JJ332 J330 3 1 C369 PFUP1188YA IC302 R357 C354 R354 C356 R352 C353 R351 R364 C304 C301 R353 R315 C316 R316 R301 R302 C309 Re...

Page 196: ...203 C201 CN301 1 1 1 7 C105 C103 D101 D107 Q101 S D G L N FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE PRIMARY SECONDARY T3 15AH 250V 68 4730B F101 D104 D103 D102 D101 J1 J2 J3 J4 C202 R224 D201 C102 C125 C108 R104 R107 R109 R106 L103 T101 C119 C221 C201 24 7 CN301 1 5V GND GND R203 R202 C203 C106 D105 C123 C127 C124 R126 R124 C105 R137 R103 R105 R128 R122 R102 C103 R101 C101 ZNR101 CN31 ...

Page 197: ...7 9 D6 10 D5 11 D4 12 D3 13 D2 14 D1 15 D0 16 0VD2 17 0VA 18 RAMPIN 19 NC 20 NC 21 0VA 22 5VD2 23 0VD2 24 SWGAINI 25 ECLKIN1 26 SYNCIN1 27 NC 28 NC 29 NC 30 0VA 31 NC 32 NC 33 NC 34 DAIN 35 ADOUT 36 BYPASS 37 RCV1 38 TXLOSS3 39 TXLOSS2 40 TXLOSS1 41 NC 42 NC 43 0VA 44 TXOUT 45 RXIN 46 5VA 47 0VA 48 AGD 49 AOUT 50 0VD2 51NC 52 IRQ 53 WRITE 54 CS 55READ 56 RS4 57 RS3 58 RS2 59 RS1 60 RS0 61 GP13 62 ...

Page 198: ...12 120K C112 K0 012 24V D105 2 0V 2 IC101 1 2 3 4 8 1 IC101 5 6 7 5VA R103 47K 1 2W C113 K0 01 R113 30K R120 2 2K R128 2 2K SW101 HOOK SW 3 1 2 4 SW102 MOTOR POSTION SW 3 2 4 1 L103 0 NC JJ101 NC JJ102 PC101 1 2 3 4 LF101 NC 1 4 2 3 JJ103 JJ104 R102 270 1 4W C102 K0 033 R141 10K NC JJ105 NC JJ106 NC C103 NC C104 Q101 C134 K0 1 R138 5 6K R139 560K R140 330K 5VA NC D106 NC R155 5VA 5VA 5VA CN101 15 ...

Page 199: ...XL14 39 GND 21 XL15 NC C351 5V2 NC R310 NC R311 NC R312 LED302 LED303 C354 5V2 R355 R353 2 IC302 1 2 3 4 8 C353 5V2 R356 1 IC302 5 6 7 C355 R354 C356 SW352 3 1 4 2 R315 100 C316 K0 01 R314 4 7K SW353 3 1 4 2 R317 100 C317 K0 01 R316 4 7K 5V2 5V2 SW305 AUTO ANSWER SW310 IQ FAX SW315 8 SW320 7 SW325 INTERCOM SW330 DIRECTORY PROGRAM SW335 5V CN303 1 MICIN 2 3 GND SW301 NC C358 NC C359 NC R375 NC R376...

Page 200: ... 1 2 750V L N CN31 1 GND R127 PC101 C124 0 1 1 8K C101 0 22 F101 SA250V D104 R105 0 22 2 R124 180 C121 4700p 4 5 3 6 2 7 1 8 R122 270 R125 10K D107 IC101 D108 R108 15 IC202 R128 100 D106 Q101 G R104 R107 100K 1 300K 2 T101 TRANS D201 1 24V 2 24V 3 24V 4 GND CN301 5 GND 6 GND 7 5V C202 1000p 1K D201 C206 C110 C221 0 1 1000p 2200p R223 IC201 C205 0 47 50 100 D S R203 47 C204 47 35 TH101 Cycle 12 4 µ...

Page 201: ...201 KX FP81BX KX FP81CX KX FP82CX TN Q KXFP81BX KXFP81CX KXFP82CX ...

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