Brother P-touch PRO DX PT-9200DX Service Manual Download Page 67

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CONTENTS

CHAPTER III ELECTRONICS

3.1 CONFIGURATION OF THE ELECTRONIC PART ...................................................................... III-1

3.1.1

Main PCB ...................................................................................................................... III-1

3.1.2

Power Supply PCB ........................................................................................................ III-1

3.1.3

Cassette Sensor PCB (Sensor PCB).............................................................................. III-2

3.1.4

Tape End Sensor PCB .................................................................................................. III-2

3.1.5

Switch and LED PCB (Sub PCB) ................................................................................... III-2

3.1.6

Full Cutter Sensor ......................................................................................................... III-2

3.1.7

Half Cutter Sensor ......................................................................................................... III-2

3.1.8

Full Cutter Motor ........................................................................................................... III-2

3.1.9

Half Cutter Motor ........................................................................................................... III-2

3.1.10

Tape Feed Motor........................................................................................................... III-2

3.1.11

Thermal Head ............................................................................................................... III-2

3.2 MAIN PCB .................................................................................................................................. III-3

3.2.1

Logic Components......................................................................................................... III-4

[1]

CPU (M30622M8) ................................................................................................... III-4

[2]

RAM (SRAM) .......................................................................................................... III-4

[3]

ROM (EEPROM)..................................................................................................... III-4

3.2.2

Solder Points ................................................................................................................. III-5

3.2.3

Logic and VH Power, and Related Circuits..................................................................... III-5

3.2.4

Stepping Motor (Tape Feed Motor) Drive Circuit............................................................ III-6

3.2.5

DC Motor (Cutter Motor) Drive Circuit............................................................................ III-8

[1]

Full Cutter Motor Drive Circuit and Full Cutter Sensor Circuit .................................. III-9

[2]

Half Cutter Motor Drive Circuit and Half Cutter Sensor Circuit................................. III-9

[3]

Process of Full or Half Cutter Errors...................................................................... III-10

3.2.6

Cassette Detection Sensor Circuit ............................................................................... III-10

3.2.7

Thermal Head Control Circuit ...................................................................................... III-11

[1]

Basic Energizing Time .......................................................................................... III-12

[2]

Log Control ........................................................................................................... III-12

[3]

4-Dot Control......................................................................................................... III-12

[4]

Control by Ribbon Type......................................................................................... III-12

[5]

Control by the Resistance Level of the Thermal Head ........................................... III-12

[6]

Temperature Control ............................................................................................. III-12

3.2.8

Head Temperature Detection Circuit............................................................................ III-13

3.2.9

Oscillation Circuit ........................................................................................................ III-13

3.2.10

Interface Circuit ........................................................................................................... III-14

[1]

Serial Interface Circuit........................................................................................... III-14

[2]

USB Interface Circuit ............................................................................................ III-15

3.2.11

Tape End Sensor Circuit.............................................................................................. III-16

3.2.12

Switch and LED Circuit ................................................................................................ III-16

3.2.13

Cover Open Sensor Circuit.......................................................................................... III-17

Summary of Contents for P-touch PRO DX PT-9200DX

Page 1: ...SERVICE MANUAL MODEL PT 9200DX ...

Page 2: ...SERVICE MANUAL MODEL PT 9200DX ...

Page 3: ...ht Brother 2000 All rights reserved No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher Specifications are subject to change without notice ...

Page 4: ...ncerned persons to accurately and quickly provide after sale service for our PT 9200DX To perform appropriate maintenance so that the machine is always in best condition for the customer the service personnel must adequately understand and apply this manual This manual is made up of four chapters and an appendix CHAPTER I SPECIFICATIONS CHAPTER II MECHANISMS CHAPTER III ELECTRONICS CHAPTER IV TROU...

Page 5: ...CHAPTER I SPECIFICATIONS ...

Page 6: ... I 1 1 1 2 Input Specifications I 2 1 1 3 Display Specifications I 2 1 1 4 Printing Specifications I 2 1 1 5 Tape Cassette Specifications I 3 1 1 6 Tape Cutter Specifications I 3 1 1 7 PC Interface Specifications I 3 1 2 ELECTRONIC SPECIFICATIONS I 4 1 2 1 Power Supply Specifications I 4 ...

Page 7: ...1 1 1 MECHANICAL SPECIFICATIONS 1 1 1 External View 1 Dimensions W D H 115 mm 245 mm 145 mm 2 Weight Machine proper Approx 1 5 kg only the machine Machine and package Approx 3 0 kg Fig 1 1 1 External View ...

Page 8: ...od Thermal transfer or heat sensitizing method by thermal head Printing on plastic tapes laminated and non laminated tapes or special tapes instant lettering tape non laminated thermal film tape and fabric printing tape Fixed print head and tape feed mechanism 2 Printing speed 20 mm sec 3 Print head Type Thin film thermal head 384 dots 1 dot Dimensions of a heating element 0 08 mm wide by 0 0545 m...

Page 9: ... Tape size Width Length Laminated tape 6 9 12 18 24 36 mm 8 m 5 m for fluorescent coating tapes Non laminated tape 6 9 12 18 24 mm 8 m Instant lettering tape 18 mm 8 m Fabric printing tape 18 mm 8 m Stamp tape 18 mm 8 m 1 1 6 Tape Cutter Specifications 1 Tape cutting method Automatic full cutting method not user replaceable Automatic half cutting method not user replaceable 1 1 7 PC Interface Spec...

Page 10: ...pply Specifications 1 Power supply method Commercially available power 100V 120V AC 60 Hz and 220V 240V AC 50 Hz is input and stabilized to generate DC voltage by the switching regulator in the machine The power supply cord is inserted into an inlet ...

Page 11: ...CHAPTER II MECHANISMS ...

Page 12: ...MBLY AND REASSEMBLY II 10 2 2 1 Disassembly Procedures II 11 1 Removing the Tape Cassette II 11 2 Removing the Cassette Cover II 11 3 Disassembly of the Cassette Cover Components II 12 4 Removing the Lower Cover II 13 5 Removing the Bottom Cover and the Front Cover II 14 6 Removing the Power Supply PCB Assy II 16 7 Removing the Main PCB Assy and the Mechanical Printing Unit II 18 8 Disassembly of ...

Page 13: ...nd the Eject Unit Assy II 34 5 Reassembly of the Body Cover II 35 6 Reassembly of the Mechanical Printing Unit and the Main PCB assy II 38 7 Reassembly of the Power Supply PCB Assy II 41 8 Reassembly of the Covers II 44 9 Reassembly of the Cassette Cover Components II 47 10 Reassembly of the Cassette Cover II 48 11 Reassembly of the Tape Cassette II 48 12 Test Printing and Operation Check II 49 13...

Page 14: ...the tape and the ink ribbon on the thermal head At this time the CPU selects the required heating elements out of the 384 heating elements to energize them The theory of printing depends on the use of non laminated thermal film tape cassettes or other tape cassettes Laminated tape when using laminated tape cassettes Non laminated tape when using non laminated tape cassettes Instant lettering tape ...

Page 15: ...heating element s generates heat the porous stamp tape will be melted so that a pore s will be formed in the tape The tape is advanced and the next heating cycle is repeated thus forming a character of pores in the tape The printed stamp tape can be used as the face of a stamp When the stamp is pressed against the ink pad it will absorb ink through the pores 3 Character Formation While the main mo...

Page 16: ... thermal film tape cassettes or stamp tape cassettes sandwiched inbetween under a uniform load by the platen spring At the same time the platen gear becomes engaged with the platen idle gear Also the tape feed sub roller is pressed perpendicularly against the tape feed roller built in the tape cassette with the tape and base paper when using laminated tape cassettes or stamp tape cassettes sandwic...

Page 17: ...1 2 As the tape feed motor stepping motor rotates the rotation is transmitted via the gear train to the platen idle gear which rotates the platen gear and the tape feed gear which rotates the tape feed roller and the tape feed sub roller at the same rotation speed Accordingly the sandwiched tape and ink ribbon will be advanced When a laminated tape cassette is mounted the sandwiched laminated tape...

Page 18: ...in rotates counterclockwise When fitted on the ribbon drive cam the ribbon take up roll in the tape cassette also rotates to take up the ink ribbon To apply proper tension to the ink ribbon between the platen roller and the ribbon drive cam the feed amount of the ribbon drive cam is slightly greater than that of the tape feed gear The difference between the feed speeds at the platen roller and at ...

Page 19: ...ovable blade actuates the movable blade to pivot it around shaft B Consequently the cutter cuts the printed tape routing through the movable and stationary blades just like a pair of scissors Subsequently the CPU keeps the full cutter motor on When the movable blade returns to the home position part C of the cutter helical gear presses the full cutter sensor switch secured on the half frame The mo...

Page 20: ...der is inserted operates the half cutter holder to pivot it around shaft E The stationary plate is provided with space as wide as the separator of a laminated tape A laminated tape is pressed against the stationary plate by the half cutter holder for half cutting Half cutting refers to cutting a tape except its separator Subsequently the CPU rotates the half cutter motor counterclockwise to return...

Page 21: ... printed tape the tape is pressed against the stationary roller by the eject roller and held in place until the cutter completes cutting the tape These operations of the cutter and the eject roller unit are controlled by cam G Upon completion of the cutting of the tape by the cutter released cam G causes the spring to slide the eject roller unit in direction J At this time the two cams and springs...

Page 22: ...Cover Open Button 2 1 8 Cover Open Cover Lock Sensor The cover open cover lock sensor push switch is provided on the cassette sensor PCB Closing the cassette cover puts its sensor tab on the cover open cover lock sensor push switch signaling that the cassette cover is closed Fig 2 1 9 Cover Open Sensor Cover lock actuator Cover button actuator Cover open button Cover lock button Cassette sensor PC...

Page 23: ... list of tightening torque below List of Tightening Torque Position Screw Qty Tightening torque kgf cm Head roller holder unit Screw pan S P washer M3 10 2 59 10 N cm 6 1 kgf cm Eject unit Screw pan S P washer M4 12 2 88 10 N cm 9 1 kgf cm Half frame Screw pan S P washer M3 6 2 59 10 N cm 6 1 kgf cm Tape feed motor Screw pan M2 6 3 5 2 39 10 N cm 4 1 kgf cm Full cutter motor 2 Half cutter motor 2 ...

Page 24: ...imultaneously Hold both sides of the tape cassette and lift it to remove it Fig 2 2 1 Removing the Tape Cassette 2 Removing the Cassette Cover While pressing part A with the end of a screwdriver slightly tilt the cassette cover with side B turned upwards and lift the cassette cover to remove it Fig 2 2 2 Removing the Cassette Cover Cassette cover Front cover Cover open button Cover lock button Tap...

Page 25: ...r removes the cassette spring Fig 2 2 3 Removing the Cassette Presser and Spring 2 Release the hooks on both sides of the cover lock actuator with the end of a screwdriver to remove the cover lock actuator Removing the cover lock actuator removes the cover lock spring Fig 2 2 4 Removing the Cover Lock Actuator and Spring Cassette presser Cassette cover Hooks Cassette spring Cover lock actuator Cas...

Page 26: ...II 13 4 Removing the Lower Cover Turn the machine over and remove the screw from the lower cover to remove the lower cover Fig 2 2 5 Removing the Lower Cover Screw Bottom cover Lower cover ...

Page 27: ...move screws C and D securing the bottom cover Then remove the core of the inlet bracket unit from the storage space in the bottom cover before removing screw E securing the bottom cover Fig 2 2 7 Removing the Screws Securing the Bottom Cover Screw A Shield plate B Half frame Ground wire Screw B Core Bottom cover Screw C Screw D Bottom cover Core Screw E Screw E ...

Page 28: ...ctor from the main PCB Caution Do not pull the harness hold the connector to pull it out Fig 2 2 8 Removing the Power Supply Harness and Connector 5 While pressing the body cover lift the front cover diagonally to remove it Fig 2 2 9 Removing the Front Cover Power supply harness Main PCB Bottom cover Front cover Body cover Main PCB ...

Page 29: ...t Unit 3 Remove the two screws securing the power supply PCB assy 4 Release the power supply harness from the hook of the bottom cover and lift the power supply PCB assy to remove it 5 Lift shield plate B to remove it Fig 2 2 11 Removing the Power Supply PCB Assy and Shield Plate B Bottom cover Two screws Shield plate B Power supply PCB assy Two screws Inlet unit Bottom cover ...

Page 30: ...inlet bracket Fig 2 2 12 Removing the Inlet Assy 7 Remove the inlet assy and power supply harnesses from the power supply PCB assy Fig 2 2 13 Removing the Inlet Assy and Power Supply Harnesses Inlet bracket Two screws Inlet assy Power supply harness Power supply PCB assy Inlet assy harness ...

Page 31: ...re not to damage the connectors and cables Fig 2 2 14 Removing the Connectors and Cables Half cutter sensor connector P8 Sensor PCB harness P3 Sub PCB harness P2 Head flexible cable P9 Connector to be unlocked Tape end sensor connector P4 Half cutter motor connector P6 Main PCB assy Full cutter motor connector P5 Power supply connector P1 Body cover Tape feed motor connector P10 Full cutter sensor...

Page 32: ...15 Removing the Main PCB Assy 3 Remove the two screws securing the FG harness and the mechanical printing unit to remove them Fig 2 2 16 Removing the Mechanical Printing Unit FG harness With cover Without cover Mechanical printing unit Body cover Main PCB assy Three screws Two screws Body cover FG harness With cover Without cover Mechanical printing unit ...

Page 33: ...and lift the cassette cover bracket to remove it Fig 2 2 17 Removing the Cassette Cover Bracket 2 Rotate the cover open cam in direction A until it stops and then remove it Fig 2 2 18 Removing the Cover Open Cam Cassette cover bracket Body cover Two screws Cassette cover bracket A Cover open cam ...

Page 34: ...er Open Spring 4 Remove the two screws to remove the tape end sensor assy 5 Release the two hooks of the body cover to the outside of the sensor PCB to remove the sensor PCB assy Fig 2 2 20 Removing the Tape End Sensor Assy and the Sensor PCB Assy Tape end sensor assy Two screws Body cover Sensor PCB assy Hook Hook Cover open spring Cover open cam Damper rubber Cassette cover bracket Hook ...

Page 35: ...from the power supply actuator Fig 2 2 21 Removing the Sub PCB Assy and the Button 8 Release the two hooks on the back of the cover lock button to remove the cover lock button from the body cover 9 Remove the cover lock spring Fig 2 2 22 Removing the Cover Lock Button and Spring Two screws Power supply switch button ON OFF key Power supply actuator Sub PCB assy Cut feed button FEED CUT key Body co...

Page 36: ... unit to remove the eject unit assy the half cutter assy the half spacer and the cutter assy Warning Take care not to be injured by the blades of the cutter assy and the half cutter assy otherwise danger will be caused Fig 2 2 24 Removing the Eject Unit Assy the Half Cutter Assy the Half Spacer and the Cutter Assy Cutter assy Full cutter assy Half spacer Two screws Eject unit assy Half cutter assy...

Page 37: ...ving the Half Rock Gear and the Cutter Helical Gear 3 Remove the two screws to remove the half cutter sensor assy and the full cutter sensor assy Fig 2 2 26 Removing the Half Cutter Sensor Assy and the Full Cutter Sensor Assy Cutter helical gear Retaining ring Half rock gear Half frame assy Main frame Full cutter sensor assy Screws Half cutter sensor assy Half frame assy ...

Page 38: ...o remove it At this time take care not to damage the motor worm gear Fig 2 2 27 Removing the Half Cutter Motor Assy and the Full Cutter Motor Assy 6 Remove the two screws from the half frame assy to remove it Fig 2 2 28 Removing the Half Frame Assy Half cutter motor assy Two screws Half frame assy Full cutter motor assy Two screws Main frame Half frame assy Two screws ...

Page 39: ...Tape Feed Motor Assy 2 Remove the two screws and press the back of the head roller holder unit to remove it At this time detach the tape securing the thermal head cable on the frame assy Fig 2 2 30 Removing the Head Roller Holder Unit Main frame Tape feed motor assy Two screws Two screws Head assy Securing tape Thermal head cable Main frame Head roller holder unit ...

Page 40: ...the shaft 6 As the release rod roller is secured in place by the elasticity of the resin of the roller release rod press the shaft of the release rod roller to remove it from the roller release rod Fig 2 2 31 Removing the Roller Release Rod Roller release rod A Main frame Roller release rod Release lever spring Main frame Release lever spring Release rod roller Retaining ring Release cam ...

Page 41: ... Note Do not touch the rubber platen Touching the platen may impair printing quality Fig 2 2 32 Removing the Roller Holder Assy 3 Remove the roller holder release spring Note Take care not to lose the roller holder release spring which is removed simultaneously when the roller holder assy is removed Fig 2 2 33 Removing the Roller Holder Release Spring Retaining ring Head assy Roller holder shaft R...

Page 42: ...r assy into the slit at the top of the head assy while tilting the roller holder assy Then insert the shaft at the bottom into the slit at the bottom of the head assy to set the roller holder assy At this time check that the release spring is hooked on the correct portion of the head assy 3 After inserting the roller holder shaft from the bottom of the head assy set the retaining ring at the top o...

Page 43: ...g the release lever spring on the hole at the bottom of the roller release rod pull the release lever spring to hook it on the hole in the frame 6 Apply the specified grease 3 mm3 on each of the inside of the square hole in the roller release rod and the release rod roller Specified grease Silicone grease G501 Fig 2 2 36 Reassembly of the Roller Release Rod Roller release rod Release cam Apply the...

Page 44: ...the release cam vertically Fig 2 2 37 Reassembly of the Head Roller Holder Unit 9 Set the tape feed motor assy on the frame and tighten the screws from the back of the frame Note Backlash on the motor gear should be 0 05 to 0 3 mm Fig 2 2 38 Reassembly of the Tape Feed Motor Assy Two screws Oblong hole in the main frame Head assy Main frame Boss on the main frame Head roller holder unit Main frame...

Page 45: ...ten the two screws with the end of the motor worm gear pressed downward Specified grease Silicone grease G501 3 Insert the half cutter motor assy from the back of the half frame assy and tighten the two screws Then apply the specified grease 3 mm3 on the gear of the half cutter motor assy Specified grease Silicone grease G501 Backlash on the motor gear should be 0 05 to 0 3 mm Fig 2 2 40 Reassembl...

Page 46: ...al gear and the cutter worm gear is 0 to 0 1 mm If the backlash is greater than this range remove the two screws of the full cutter motor and adjust the backlash correctly After obtaining the correct amount of backlash set the retaining ring on the shaft 6 Set the half rock gear with its groove tilted at an approximately 45 angle Then apply the specified grease 3 mm3 on the inside of the groove Sp...

Page 47: ...ts of the frame assy into the round and oblong holes in the half spacer 4 After inserting the half rock pin of the half cutter assy into the groove in the half rock gear insert the two locating shafts of the frame assy into the round and oblong holes 5 After setting the eject cam of the eject unit assy on the cutter rock pin insert the two locating shafts of the frame assy into the round and oblon...

Page 48: ...ack of the cover lock button while slightly rotating the cover lock spring 3 Align the cover lock spring set in the cover lock button on the projection of the body cover for the cover lock spring to set the cover lock button in the body cover Check that the cover lock actuator slides smoothly by pressing the cover lock button Fig 2 2 45 Reassembly of the Cover Lock Spring and Button Cover lock act...

Page 49: ...Sub PCB Assy 7 Set the sensor PCB assy on the two hooks of the body cover and press the sensor PCB until these hooks click There is no screw to be tightened Check if the solder of the harness has peeled off 8 Insert the tape end sensor assy into the square hole in the body cover and tighten the two screws Insert the tape end sensor harness into the groove in the body cover Fig 2 2 47 Reassembly of...

Page 50: ...ubber is sandwiched between the assy and the bracket Specified grease Silicone grease G501 Fig 2 2 48 Reassembly of the Cover Open Cam 12 Align the two locating projections on the body cover with the holes in the cassette cover bracket to set the cassette cover bracket on the body cover At this time check that the longer of the hooks of the cover open spring is set on the projection on the body co...

Page 51: ...are not to sandwich the harnesses and connectors inbetween Tighten the FG harness together with the mechanical printing unit using one screw and tighten the other screw too Note Tighten the terminal of the FG harness having no cover at the crimp terminal Fig 2 2 50 Reassembly of the Mechanical Printing Unit Two screws FG harness With cover Without cover Mechanical printing unit Body cover ...

Page 52: ... to tighten the crimp terminal of the FG harness equipped with a cover Note 2 If the main PCB assy has been replaced refer to section 3 2 1 logic and related matter and section 3 4 description of model name and serial number writing software Fig 2 2 51 Reassembly of the Main PCB Assy 3 Attach the head flexible cable on the back of the main frame with a tape Fig 2 2 52 Attaching the Head Flexible C...

Page 53: ... using a multimeter or the like Thermal Head Resistance Values and Soldering Points Thermal head resistance value L A B C D E F S Soldering point L A B C D E F S Fig 2 2 53 Setting the Connectors and Cables Fig 2 2 54 Changing the Soldering Point Half cutter sensor connector P8 Full cutter sensor connector P7 Sensor PCB harness P3 Sub PCB harness P2 Head flexible cable P9 Connector to be locked Ta...

Page 54: ...ole in shield plate B on the projection on the bottom cover to set shield plate B on the bottom cover 3 After plugging the inlet assy and power supply harnesses into the connectors on the power supply PCB set the power supply PCB assy on the bottom cover with shield plate B sandwiched inbetween Then tighten the two screws Fig 2 2 56 Reassembly of the Shield Plate B and the Power Supply PCB Assy In...

Page 55: ...ighten the two screws Fig 2 2 57 Reassembly of the Inlet Unit 5 Pass the power supply harness through the hole in the bottom cover and secure it on the hook of the bottom cover Fig 2 2 58 Securing the Power Supply Harness Two screws Inlet unit Bottom cover Power supply harness Bottom cover ...

Page 56: ...re the two large and small cores in the storage space in the bottom cover and insert the two harnesses blue and brown into the slits in the inlet bracket Fig 2 2 59 Running the Inlet Unit Harnesses Body cover Core ...

Page 57: ... cover set the front cover on the hook Fig 2 2 60 Reassembly of the Front Cover 2 Insert the power supply harness into the connector on the main PCB Fig 2 2 61 Connecting the Power Supply Harness and Connector Hook Rib Rib Front cover Body cover Mechanical printing unit Power supply harness Main PCB Bottom cover ...

Page 58: ...he bottom cover Pull out the large core from the storage space and tighten screw E Fig 2 2 62 Reassembly of the Body Cover and the Bottom Cover 5 Tighten screws A and B to secure shield plate B and the ground wire on the half frame And insert the core into the cover Fig 2 2 63 Tightening the Screw to Secure the Ground Wire Screw A Core Half frame Shield plate B Ground wire Screw B Core Body cover ...

Page 59: ...II 46 6 Set the lower cover on the bottom cover and tighten the screw Fig 2 2 64 Reassembly of the Lower cover Screw Lower cover Bottom cover ...

Page 60: ...assette spring on the projection on the back of the cassette presser while slightly rotating the cassette spring 3 Set the cassette presser At this time check that the cassette spring is set on the projection on the cassette cover by viewing it from the side After setting it check that the three hooks are securely locked and that the cassette presser operates smoothly Fig 2 2 66 Reassembly of the ...

Page 61: ...the cassette cover 2 Check that the cassette cover opens and closes properly Fig 2 2 67 Reassembly of the Cassette Cover 11 Reassembly of the Tape Cassette Press the cover open button cover lock button to open the cassette cover Set the tape cassette from the top and then close the cassette cover Fig 2 2 68 Reassembly of the Tape Cassette Cassette cover Cassette cover Cover open cam Body cover Pro...

Page 62: ...head 5 Check that the FEED CUT key operates correctly 6 Check that the ON OFF key operates correctly LED ON OFF key Display State of the LED Display Lights up in green Data reception standby mode Blinks in green Data has been received Lights up in orange No cassette is present in the data reception standby mode The cover is open while data is being received before printing Blinks in orange The cov...

Page 63: ...te change command Check if the power is shut down during operation or the cable is disconnected or other causes related to the power supply 7 Failure to read baud rate change command Check if the power is shut down during operation or the cable is disconnected or other causes related to the power supply 8 Build Comm failure Function failure at API level API Application interface 9 Failure to write...

Page 64: ...ing the jammed tape try printing again Caution Before removing the jammed tape be sure to turn off the machine s power and disconnect its power supply cable Be careful that you do not cut your fingers on the tape cutter Cannot change cassette while printing Turn off the P touch and turn it back on Then click the Resume button Appropriate cassette not installed After installing the correct cassette...

Page 65: ... Try again after the other application is finished Not enough disk space to spool document Make sure that there is enough free space on the disk Invalid port was specified Select a valid COM port using the Control Panel and Resume Port being used for another application Try again after the other application is finished Caution If this error occurs check for the following Is a mail application whic...

Page 66: ...CHAPTER III ELECTRONICS ...

Page 67: ...tor Drive Circuit III 6 3 2 5 DC Motor Cutter Motor Drive Circuit III 8 1 Full Cutter Motor Drive Circuit and Full Cutter Sensor Circuit III 9 2 Half Cutter Motor Drive Circuit and Half Cutter Sensor Circuit III 9 3 Process of Full or Half Cutter Errors III 10 3 2 6 Cassette Detection Sensor Circuit III 10 3 2 7 Thermal Head Control Circuit III 11 1 Basic Energizing Time III 12 2 Log Control III 1...

Page 68: ...3 3 POWER SUPPLY PCB III 17 3 4 Description of Model Name and Serial Number Writing Software PT 9200DX III 18 3 4 1 Operation Procedure III 18 3 4 2 Troubleshooting in Case of Error III 20 ...

Page 69: ...ain PCB controls all electronic operations This PCB consists of the CPU the RAM the EEPROM the Serial I F driver USB chip and the motor driver 3 1 2 Power Supply PCB There are two types of power supply PCB 100V 120V system and 220 240V system This PCB equipped with a switching regulator stabilizes commercially available power AC voltage to generate DC voltage The following two voltages are output ...

Page 70: ...cal switch which detects the position of the full cutter 3 1 7 Half Cutter Sensor The half cutter sensor is a sensor mechanical switch which detects the position of the half cutter 3 1 8 Full Cutter Motor The full cutter motor is the drive to cut the tape This DC motor runs at a drive voltage of VH 24V 3 1 9 Half Cutter Motor The half cutter motor is the drive for the half cutting of laminated tap...

Page 71: ...and LED ON OFF circuits 5 Full cutter motor drive circuit half cutter motor drive circuit and tape feed motor drive circuit 6 Cassette sensor circuit cover open sensor circuit automatic full and half cutter sensor circuit and tape end sensor circuit 7 Head level detection circuit 8 Head temperature detection circuit 9 Reset circuit 10 RS 232C serial interface circuit 11 USB interface circuit Fig 3...

Page 72: ...d into which baud rate vendor ID code product ID code and mechanical information is written to be stored After the main PCB assy has been replaced the serial number shown on the main body and model name PT 9200DX must be stored in the EEPROM on the main PCB To do this Fig 3 2 2 shows connect the PC with PT 9200DX via a serial I F cable and use special software supplied separately For details refer...

Page 73: ...y available wall outlet is Vcc 5V 0 25V which is supplied to the main PCB and then to all logic components When Vcc is supplied the reset IC Q5 switches the reset signal level to high to start the CPU When the CPU starts after the power is supplied ports are initialized and the CPU enters the sleep state the power is turned off With the power off pressing the ON OFF key causes the interruption of ...

Page 74: ...571 pps 1 75 msec pulse The through up pulses including pre excitation and through down pulses including post excitation are 56 and 5 pulses respectively 2 Halfway stop of printing If printing is stopped halfway the circuit continuously drives the motor overrun for 198 pulses after the stop then shuts off the power 3 Printing interruption margin cutting drive half cutting drive and buffer full dri...

Page 75: ...g on laminated or non laminated tapes low speed printing is performed to ensure printing quality The through up pulses including pre excitation and the through down pulses including post excitation are 56 and 5 pulses respectively The rate of low speed printing is 426 pps 2 35 msec pulse ...

Page 76: ...nsmitted from DCR1 and DCF1 of the CPU 1 to BA6919FP 7 to drive the motor With half cutting drive pulses are transmitted from DCR2 and DCF2 of the CPU 1 to BA6919FP 8 to drive the motor Table 3 2 1 shows the logic of DCR1 DCF1 DCR2 and DCF2 Fig 3 2 5 DC Motor Drive Circuit Fig 3 2 6 Cutter Sensor Circuit State DCF1 DCR1 DCF2 DCR2 OFF 0 0 0 0 Clockwise 1 0 1 0 Counterclockwise 0 1 0 1 Brake 1 1 1 1...

Page 77: ... operations If an abnormal end shifts the cutter from the home position the DC motor rotates counterclockwise before printing to return the cutter to the home position initialization If the cutter remains at the home position 300 msec or does not return to the home position 1000 msec after the DC motor starts rotating clockwise it is processed as an error The DC motor does not operate with the cov...

Page 78: ...of the cassette sensor which detects the ribbon type and the tape width Table 3 2 2 shows the combinations of the cassette Fig 3 2 7 Cassette Detection Sensor Circuit Cassette type RS10 RS11 RS12 RS13 RS14 No cassette 1 1 1 1 1 6 mm Laminated 1 1 0 1 1 Non laminated 1 1 0 0 1 9 mm Laminated 0 0 0 1 1 Non laminated 0 0 1 1 1 12 mm Laminated and lettering 1 0 1 1 1 Non laminated fabric 1 0 0 0 1 18 ...

Page 79: ...o the four drivers in synchronization with the clock signal Print data is output in synchronization with the 3 685 MHz clock a quarter of 14 7456 MHz In response to the LATCH signal from P62 of the CPU 1 the head driver circuit latches the print data to synchronize it with the STB signal from P80 driving the specified heating elements The method of controlling the thermal head is as follows Fig 3 ...

Page 80: ...the preceding dot energized Otherwise SUB1 turns off 4 Control by Ribbon Type An energizing time appropriate for the ribbon type is set 5 Control by the Resistance Level of the Thermal Head The resistance values of the thermal head are classified into levels of L S and read from the above mentioned solder points to calculate an energizing time appropriate for the resistance value 6 Temperature Con...

Page 81: ... variations in the temperature of the head into variations in voltage to input them into the A D input port AN1 of the CPU Fig 3 2 10 Head Temperature Detection Circuit 3 2 9 Oscillation Circuit Fig 3 2 11 shows the oscillation circuit This circuit contains a 14 7456 MHz oscillator to generate an oscillation at 14 7456 MHz The internal operations of the CPU are executed based on this clock Fig 3 2...

Page 82: ...s a RS 232C driver IC which converts logic level signals into RS 232C and signals The RXD signal is a print data input signal from the computer and transmitted at a maximum baud rate of 115 2 Kbps The TXD and DTR signals are control output signals to the computer With the power on P66 is switched to low to turn on Q6 transistor so that the power Vcc is supplied to 2 Fig 3 2 12 Serial Interface Cir...

Page 83: ...cuit Fig 3 2 13 shows the USB interface circuit 3 is a USB chip meeting requirements of the high speed mode and data is transmitted or received with a computer via two data signal cables D and D Fig 3 2 13 USB Interface Circuit ...

Page 84: ...ack transparent at the end of the tape passes by the photosensor Fig 3 2 14 Tape End Sensor Circuit 3 2 12 Switch and LED Circuit Fig 3 2 15 shows the switch and LED circuit This circuit controls the ON OFF and FEED CUT switches and the power supply LED The LED lights up or blinks in green or red according to the state of the machine Fig 3 2 15 Switch and LED Circuit ...

Page 85: ...Circuit 3 3 POWER SUPPLY PCB Commercially available power is supplied to the power supply PCB through the power supply cord which is inserted into an inlet The inlet has a total of three wires one of which is for grounding and the other two are for inputting AC voltage into the power supply PCB The switching regulator of the power supply PCB stabilizes the AC voltage to generate DC voltage VH 24V ...

Page 86: ...T 9200DX with the PC via a serial I F cable Use a PC with aserial port Do not connect USB cable between PT 9200DX and PC The software runs on a PC with the Windows 95 or Windows 98 operation system and serial I F connection Use the serial I F cable attached to PT 9200DX 2 After starting the operation system of the PC turn the power button of the main body 3 Run the PT 9200DX software file name CS9...

Page 87: ...g Set Completed is displayed If setting has failed Error is displayed If the error is displayed check to see referring to the items of Troubleshooting in Case of Error 7 After setting turn the power button of the main body of the PT 9200DX off then on again Next click on the 4 Current Value in EEPROM button Values set in the main body are displayed Check the displayed model name serial number and ...

Page 88: ... items 1 3 are set correctly the contents of the EEPROM in the PT 9200DX main unit may be corrupted Follow the steps below to restart the serial number writing software 1 Exit the serial number writing software CS9200DX exe 2 Next start up PT92RST2 exe This software is used to initialize the contents of the EEPROM in the PT 9200DX main unit Fig 3 4 2 PT92RST2 exe Main Menu Screen 3 Turn on the pow...

Page 89: ...CHAPTER IV TROUBLESHOOTING ...

Page 90: ... IV 1 1 Printing is performed with specific dots omitted IV 1 2 The tape cassette type is not detected correctly IV 2 3 The LED does not light up IV 2 4 No printing is performed IV 3 5 The interface malfunctions IV 3 6 The tape is not cut IV 4 7 The tape is not fed correctly IV 5 8 Half cut is not possible IV 7 9 The tape is not ejected forcibly IV 8 ...

Page 91: ...wait until the thermal head and related circuits are restored to execute normal operation 3 Check AC for voltage to make sure that the voltage value is appropriate 4 1 2 After Repairing After troubleshooting be sure to check the failure to make sure that the failure has been completely remedied Note and keep the troubleshooting procedure acturally followed for later troubleshooting 4 1 3 Troublesh...

Page 92: ...IV 2 2 The tape cassette type is not detected correctly 3 The LED does not light up ...

Page 93: ...IV 3 4 No printing is performed 5 The interface malfunctions ...

Page 94: ...IV 4 6 The tape is not cut ...

Page 95: ...IV 5 7 The tape is not fed correctly ...

Page 96: ...IV 6 ...

Page 97: ...IV 7 8 Half cut is not possible ...

Page 98: ...IV 8 9 The tape is not ejected forcibly ...

Page 99: ...APPENDIX Circuit Diagram Main PCB Power Supply PCB 100 120V Power Supply PCB 230V ...

Page 100: ...CONTENTS APPENDIX Main Control PCB Circuit USB APP 1 Power Supply PCB Circuit 100 120V APP 2 Power Supply PCB Circuit 230V APP 3 ...

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Page 104: ...Sep 2000 5V2106BE0 Printed in Japan ...

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Brother P-touch PRO DX PT-9200DX, Service Manual

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Summary of Contents for P-touch PRO DX PT-9200DX

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