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Brother P-touch PT-2310, Service Manual

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Brother P-touch PT-2310 Service Manual Download Page 69

III-3

  3.2.2

CPU

The CPU (U11 : H8S/2324) is a 16-bit CMOS microprocessor which integrates a 32-kilobyte RAM.
The external data bus is 16 bits, through which the CPU controls the ROM.  The internal data bus
is 16 bits.

Fig. 3.2-2  CPU and ROM

  3.2.3

ROM (See Fig. 3.2-2)

The ROM (U12) is a 16-megabit masked ROM which stores control programs and character
patterns.

Summary of Contents for P-touch PT-2310

Page 1: ...SERVICE MANUAL MODEL PT 2300 2310 2450 ...

Page 2: ...SERVICE MANUAL MODEL PT 2300 2310 2450 ...

Page 3: ... 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 appendices CHAPTER I SPECIFICATIONS CHAPTER II MECHANISMS CHAPTER III ELECTRONICS CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE APPENDICES 1 SOFTWARE TO WRITE THE SERIAL NUMBER 2 CIRCUIT DIAGRAMS Copyright Brother 2001 All right...

Page 4: ...CHAPTER I SPECIFICATIONS ...

Page 5: ... I 1 1 1 2 Keyboard I 2 1 1 3 Display I 2 1 1 4 Printing Mechanism I 2 1 1 5 Tape Cassette I 3 1 1 6 Tape Cutter I 3 1 2 ELECTRONICS SPECIFICATIONS I 9 1 2 1 Character Generator I 9 1 2 2 Power Supply I 9 1 3 KEY COMMANDS FOR SPECIAL FUNCTIONS I 9 1 3 1 Initializing I 9 1 3 2 Demonstration Print I 9 ...

Page 6: ...pearance Fig 1 1 1 PT 2300 2310 2450 1 Dimensions W x D x H 194 x 242 x 65 5 mm 7 64 x 9 53 x 2 59 2 Weight Machine proper Approx 900 g In package Approx 1 6 kg PT 2300 2450 Approx 2 9 kg PT 2310 2450cc including batteries a tape cassette and user s manual PT 2300 2310 PT 2450 ...

Page 7: ...d tape feeding mechanism 2 Print speed 10 mm second Typical 3 Print head Type Thermal print head Heat generator Consists of 112 heating elements vertically aligned PT 2450 128 heating elements Size of heating element 0 195 mm 7 7 mils wide by 0 141 mm 5 6 mils high 4 Character size Character size Height x Width dots Size 6 1 55 mm x 1 13 mm 11 x 8 Size 9 1 97 mm x 1 41 mm 14 x 10 Size 12 2 82 mm x...

Page 8: ...tape cassette Porous stamp tape and base paper Cloth tape cassette Cloth tape and ink ribbon 3 Tape size Width Length Laminate tape 6 9 12 18 24 mm 8 m 5 m for the fluorescent coating tape Non laminate tape 6 9 12 18 24 mm 8 m Instant lettering tape 18 mm 8 m Non laminate thermal film tape 12 18 mm 8 m Iron on transfer tape 18 mm 6 m Porous stamp tape 18 24 mm 3 m Cloth tape 12 mm 4 m 4 Tape casse...

Page 9: ...I 4 PT 2300 2310 U S A Fig 1 1 2 Key Arrangement 1 ...

Page 10: ...I 5 PT 2450 BELGIUM Fig 1 1 2 Key Arrangement 2 ...

Page 11: ...I 6 PT 2450 FRENCH Fig 1 1 2 Key Arrangement 3 ...

Page 12: ...I 7 PT 2450 GERMAN Fig 1 1 2 Key Arrangement 4 ...

Page 13: ...I 8 PT 2450 U K Fig 1 1 2 Key Arrangement 5 ...

Page 14: ...uffer 99 characters PT 2300 2310 255 characters PT 2450 File memory 300 characters PT 2300 2310 2500 characters PT 2450 1 2 2 Power Supply 1 Automatic power off Yes Normal mode 5 min 30 sec IF mode 30 min 30 sec PT 2300 2310 1 3 KEY COMMANDS FOR SPECIAL FUNCTIONS 1 3 1 Initializing Powering on the machine with both the Code and R keys held down will initialize the machine 1 3 2 Demonstration Print...

Page 15: ...CHAPTER II MECHANISMS ...

Page 16: ... 3 Removing the Bottom Cover II 10 4 Removing the Cassette Cover Chassis ASSY and Shield Plate II 12 5 Removing the Main PCB and Rubber Key Pad II 18 6 Removing the Switch ASSY II 20 7 Removing the Blind Cover II 20 8 Removing the Power Supply PCB II 21 9 Removing the Battery Terminals II 22 2 2 2 Reassembly Procedure II 23 1 Installing the Battery Terminals II 23 2 Installing the Power Supply PCB...

Page 17: ...ii 10 Installing the Tape Cassette and Tape Separator Stick II 36 11 Loading Batteries and Installing the Battery Lid II 37 12 Demonstration Print and Final Check II 38 ...

Page 18: ...ring tape when using instant lettering tape cassettes Non laminated thermal film tape when using non laminated thermal film tape cassettes Iron on transfer tape when using iron on transfer tape cassettes Cloth tape when using cloth tape cassettes When using non laminated thermal film tape cassettes or stamp tape cassettes no ink ribbon is sandwiched For tape cassettes except non laminated thermal ...

Page 19: ... a mirror image so that the printed character can be seen normally when viewed from the other side of the printed face of the tape 3 Character Formation While the DC motor feeds the tape and ink ribbon only the tape when using non laminated thermal film tape cassettes or stamp tape cassettes by 0 141 mm the thermal head generates heat once The feed amount is decided by sending each five pulses of ...

Page 20: ...pper and lower 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 sandwiched inbetween under a uniform load by the roller holder upper spring and roller holder lower s...

Page 21: ...n to the tape idle gear which rotates the tape feed sub roller gear and the platen idle gear which rotates the tape feed platen gear Accordingly the sandwiched tape and ink ribbon will be advanced When a laminated tape cassette is mounted the sandwiched laminate tape and adhesive base tape and ink ribbon will be advanced together The feeding amount of the platen is slighty less than that of the ta...

Page 22: ...ear train 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 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 tape feed speeds at the platen and at th...

Page 23: ...vable blade actuates the movable blade to pivot it around shaft Y Consequently the cutter cuts the printed tape routing through the movable and stationary blades just like a scissors After that the CPU keeps the cutter motor on When the movable blade comes back to the home position its end Z activates the cutter sensor actuator which presses the cutter sensor The moment the CPU receives the sensor...

Page 24: ...ever and Roller Holder Release Rod Fig 2 1 7 Roller Holder ASSY Cassette Cover Interlocking Mechanism Opening the cassette cover pulls up the roller release lever placed in the hooked section of the cassette cover which shifts the roller holder release rod so that the roller holder ASSY is retracted from the head ASSY side by the platen lower spring Platen roller Chassis ASSY Roller holder release...

Page 25: ...edure 1 Removing the Battery Lid and Batteries 1 Turn the machine upside down 2 Press section A of the battery lid to remove then take out batteries Fig 2 2 1 Removing the Battery Lid and Batteries Section A Bottom cover Battery lid Bottom cover Batteries ...

Page 26: ...lace the machine rightside up and open the cassette cover fully 2 Pull the tape cassette up and out of the machine Fig 2 2 2 Removing the Tape Cassette 3 Pull the tape separator stick up Fig 2 2 3 Removing the Tape Separator Stick Tape cassette Cassette cover Hook ...

Page 27: ...hile pressing down section B 2 Turn the machine upside down 3 Remove five screws from the bottom cover 4 Apply your fingers to the bottom cover and pull it up Fig 2 2 4 Removing the Bottom Cover 1 Cassette cover Section B Section B Screws Screw Screw Bottom cover ...

Page 28: ...nding wire from the rib provided on the upper cover and remove the screw that secures the grounding wire to the chassis ASSY Fig 2 2 5 Removing the Bottom Cover 2 Note Check that the lower feet are tightly attached to the bottom cover without any gaps peeling off or overreaching Main PCB PT 2300 2310 Upper cover Power supply harness Front USB IF harness Positive terminal Tweezers Negative terminal...

Page 29: ... upper cover The roller release lever will pop up Fig 2 2 6 Removing the Cassette Cover 2 Remove the switch ASSY harness which is soldered at 6 places from the main PCB Note However if only the chassis ASSY is removed the soldered switch ASSY must not be removed Fig 2 2 7 Removing the Chassis ASSY and Shield Plate 1 Upper cover Roller release lever Cassette cover Main PCB Switch ASSY harness Upper...

Page 30: ...ess 6 Disconnect the head cable from the main PCB 7 Remove the two screws of the chassis ASSY 8 Remove the shield plate from the chassis ASSY 9 Lift the chassis ASSY up and out of the upper cover Fig 2 2 8 Removing the Chassis ASSY and Shield Plate 2 DC motor harness Photo interrupter harness Head cable Full cutter sensor harness Cutter motor harness Shield Plate Chassis ASSY Main PCB Upper cover ...

Page 31: ...oving the Chassis ASSY and Shield Plate 3 Head cable USB IF harness PT 2300 2310 Cutter motor harness Full cutter sensor harness Main PCB Photo interrupter harness DC motor harness Switch ASSY harness Power supply harness ...

Page 32: ...and pull up the roller holder ASSY together with the roller release lever and roller holder release rod making sure that the roller holder release spring does not go flying off 3 Remove screw a from the head ASSY then take off the ASSY Fig 2 2 10 Disassembling the Roller Holder ASSY and Head ASSY Roller holder ASSY Roller holder release spring Retaining ring Head ASSY Chassis ASSY Roller release l...

Page 33: ...e photo interrupter ASSY 2 Remove the encode gear from the DC motor ASSY 3 Remove two screws b from the chassis ASSY then take off the DC motor ASSY Fig 2 2 11 Removing the DC motor ASSY Screw b Encode gear Photo interrupter ASSY Chassis ASSY Screw b Screws DC motor ASSY ...

Page 34: ...ly the washer becomes unusable and a new one should have to be put back in 3 Remove two screws d and take off the cutter motor ASSY taking care not to damage the motor gear 4 Remove screw e and take off the full cutter sensor PRO ASSY 5 Turn the actuator counterclockwise and remove it from the chassis ASSY Fig 2 2 12 Removing the Cutter ASSY Cutter moving gear Washer Screws d Chassis ASSY Screw c ...

Page 35: ...uching the PCB without any anti static control may damage the LSI and other electronic devices 1 Unhook the two latches to release the main PCB 2 Pull the positions A outwards to pull the LCD with the main PCB in the direction of the arrow shown in the figure below and remove the main PCB Fig 2 2 13 Removing the Main PCB Main PCB A Latch Latch Upper cover LCD A ...

Page 36: ... 4 Remove the emblem from the upper cover PT 2300 2310 Remove the navi dial from the upper cover PT 2450 Fig 2 2 14 Removing the Rubber Key Pad PT 2300 2310 Emblem Upper cover Rubber key pad PT 2450 Navi dial Rubber key pad Upper cover ...

Page 37: ...tch ASSY from the bottom cover by pulling the three pawls outwards Fig 2 2 15 Removing the Switch ASSY 7 Removing the Blind Cover Remove the blind cover from the bottom cover by pulling the three pawls outwards Fig 2 2 16 Removing the Blind Cover A Bottom cover Pawls Switch ASSY Blind cover Pawl Pawl Pawl Bottom cover ...

Page 38: ... the rib on the bottom cover PT 2300 2310 3 Remove the one screw from the power supply PCB Fig 2 2 17 Removing the Power Supply PCB PT 2300 2310 USB IF harness Core Rib Pad PT 2450 Grounding wire Power supply PCB Positive terminal Negative terminal Power supply harness Battery power cords Bottom cover Screw Battery power cords Grounding wire Power supply harness Bottom cover Negative terminal Posi...

Page 39: ...low left 2 As shown below right remove the left hand battery terminals while pressing section A with the tip of a flat screwdriver Fig 2 2 18 Removing the Battery Terminals Battery terminal Flat screwdriver Battery terminal Section A Section A Bottom cover Bottom cover Battery terminal Front ...

Page 40: ...erminals into the bottom cover as shown below left Make sure that each of their pawled sections A catches the bottom cover 2 Fit a battery terminal into the bottom cover as shown below right Fig 2 2 19 Installing the Battery Terminals Battery terminal Battery terminal Battery terminal Bottom cover Bottom cover Front Section A ...

Page 41: ...he rib on the bottom cover The double faced adhesive tape is provided on the pad PT 2300 2310 3 Secure the power supply PCB to the bottom cover with one screw Tightening torque 392 98 mN m 4 1 kg cm Fig 2 2 20 Installing the Power Supply PCB 1 PT 2300 2310 Core Rib Pad Pad Bottom cover USB IF harness PT 2450 Screw Grounding wire Power supply harness Power supply PCB Positioning pin Negative termin...

Page 42: ...25 II Fig 2 2 21 Installing the Power Supply PCB 2 PT 2300 2310 PT 2450 ...

Page 43: ...itch ASSY into the upper cover so that the switch ASSY is hooked onto the three pawls of the upper cover completely 2 Hook the switch ASSY harness into the two ribs on the upper cover Fig 2 2 23 Installing the Switch ASSY 2 Press and release each of those switch ASSY with your finger to check that they pop up normally Fig 2 2 24 Checking the Switch ASSY Blind cover Hooks Pawl B Hook Pawl B Hook Ho...

Page 44: ...ad so that it is fitted over the three bosses and two pins provided on the upper cover Fig 2 2 25 Installing the Rubber Key Pad PT 2300 2310 Emblem Boss Pin Boss Boss Pin Upper cover PT 2450 Rubber key pad Pin Pin Navi dial Boss Bosses Upper cover Rubber key pad ...

Page 45: ...main PCB Note 1 Make sure that the two latches of the upper cover catch the main PCB Note 2 After reassembling the main PCB ensure that the navi dial is rotated smoothly PT 2450 only CAUTION After replacing the main PCB always execute the software to write the serial number described in APPENDICES 1 PT 2300 2310 only Fig 2 2 26 Installing the Main PCB A B A Main PCB Latch Latch Upper cover LCD ...

Page 46: ...ness Cutter motor harness Note Be sure to route the cutter sensor harness between the cutter motor and the chassis as illustrated below This will prevent the harness from getting hooked over the boss provided on the bottom cover when reinstalling the bottom cover 7 Solder the DC motor harness to the main PCB Note 1 Be careful to the direction of the motor harness and not to stick out from the desi...

Page 47: ...Installing the Chassis ASSY and Shield Plate 2 Orange Blue Yellow Red Green Black O B Y R G K Main PCB Upper cover Switch ASSY harness Note Be careful to the direction of the switch ASSY harness and not to stick out from the designated place when soldering switch ASSY harness ...

Page 48: ...asher in the cutter moving gear 5 Secure the cutter ASSY with screw c so that the long hole provided in the moving blade becomes fitted over the boss of the cutter moving gear Tightening torque 588 196 mN m 6 2 kg cm WARNING Be careful with the cutter blades 6 Make sure that the cutter ASSY is fitted on the side of the chassis ASSY without any gap 7 Apply half of a rice sized pinch of grease Silic...

Page 49: ...ith the double gear with taking care not to damage the gear For the squeezed height refer to the Fig 2 2 30b 3 Install the photo interrupter ASSY with two screws Tightening torque 100 to 200 mN m 1 to 2 kg cm Fig 2 2 30a Installing the DC motor ASSY Fig 2 2 30b Installing the DC motor ASSY Double gear DC motor ASSY Screw b Screw b Encode gear Screws Photo interrupter ASSY Chassis ASSY A A Same hei...

Page 50: ...lideway for the roller holder release rod 3 First fit the roller holder release spring and the assembly of the roller release lever and roller holder release rod onto the roller holder ASSY as shown below Then install them to the chassis ASSY and set the retaining ring Fig 2 2 31 Installing the Head ASSY and Roller Holder ASSY Roller holder release spring Retaining ring Apply grease G501 here Roll...

Page 51: ...over with that of the upper cover then push down the bottom cover until it snaps into place Note Take care not to pinch the cords between those covers Fig 2 2 32 Installing the Bottom Cover 1 Rib PT 2300 2310 USB IF harness Power supply harness Grouding wire Screw Main PCB Upper cover Bottom cover Rib Grouding wire Main PCB Power supply harness Upper cover Screw Bottom cover PT 2450 ...

Page 52: ...35 II 4 Secure the bottom cover with five screws Tightening torque 392 98 mN m 4 1 kg cm Fig 2 2 33 Installing the Bottom Cover 2 Screws Bottom cover Screw Screw ...

Page 53: ...Cassette Cover 10 Installing the Tape Cassette and Tape Separator Stick 1 Fully open the cassette cover The roller release lever pops up 2 Insert the tape separator stick into the right side of the main body 3 Load a tape cassette 4 Close the cassette cover The roller holder ASSY will be pressed against the head Fig 2 2 35 Installing the Tape Cassette and Tape Separator Stick Hinge Hinge Upper cov...

Page 54: ...nstalling the Battery Lid 1 Load batteries 2 Fit the front end of the battery lid into the bottom cover and push down the lid Fig 2 2 36 Loading Batteries and Installing the Battery Lid Bottom cover Batteries Battery Lid Bottom cover ...

Page 55: ...ter that comfirm the On Off key 7 At last no problem is verified by conducting the following inspections 7 1 Inspection Mode Starting Procedure The inspection mode is initiated by pressing the CODE key K key and On Off key simultaneously when internal RAM is cleared while electrical power OFF Displays will become as shown in Fig 2 First release the On Off key However Error processing will be start...

Page 56: ... 3 4 5 US U S A CANADA US X X X X X UK U K UK X X X X X French FR X X X X Belgium BE X X X X German GE X X X X designates the point to be soldered For the French model the point is connected by chip resistance 7 2 1 2 Head Rank Display The head rank displays the rank as designated by the solder points A C The rank B is defined as the setting for no soldering Country Specification LCD Display Solde...

Page 57: ... 2 2 Cassette Sensor Inspection Mode 2 Key Here ckeck the cassette sensor function Display of Fig 7 is indicated when depressed key or depressed 2 key in the display of Fig 6 Fig 7 Shifts to the Key Inspection Mode when depressed key Fig 8 display Fig 8 Displays the five sensor SW states ON 1 OFF 0 Touch the sensor switch with the finger tip while checking ON OFF display Shifts to the Key Inspecti...

Page 58: ...sed erroneously Fig 11 display Fig 10 Fig 11 When all key checks were completed then displays Fig 12 and cut the tape by printing OK Fig 12 Shifts to 7 2 4 CUT Mode when depressed key Fig 14 display Only PT 2450 When all key checks were completed OK is displayed Shifts to the JOG check mode when depressed key When the navi dial is rotated the arrow is shifted following the direction of the rotatio...

Page 59: ...on Mode Fig 14 Fig 15 is displayed when depressed key to feed the tape 1 is displayed after completed the feed Fig 15 Fig 16 is displayed when depressed key to feed the tape 2 is displayed after completed the feed Fig 16 Fig 17 is displayed when depressed key to feed the tape 3 is displayed after completed the feed Fig 17 Shifts to 7 2 5 PRINT 1 Mode when depressed key Fig 18 display ...

Page 60: ...18 is indicated when depressed key or depressed 5 key in the display of Fig 17 except while in the Key Inspection Mode Fig 18 The printing is started when depressed key Fig 18 Display Initialize all memory after completed the printing and turns the electrical power to off PT 2300 2310 PT 2450 Printing Sample PRINT1 PRINT1 ...

Page 61: ...print quality than PRINT 1 Fig 19 is displayed when depressed 6 key except while in the Key Inspection Mode Fig 19 The function is started when depressed key The electrical power will not be turned to off in this case PT 2300 2310 PT 2450 Printing Sample PRINT2 PRINT2 ...

Page 62: ...sed key The electrical power will not be turned to off in this case The On Off key is depressed to stop When you failed peel off the volume shown below And insert a screwdriver to adjust the length of the tape by rotating a trimmer If rotating the trimmer to the right CW the length becomens short If rotating to the left CCW it becomes long After the adjustment verify the tape length and printed le...

Page 63: ... of the photo interrupter is read If the value of the photo interrupter displayed by is correct at the timing of 0 to 3 OK is displayed If it is not correct NG is displayed and or X is indicated for each timing This mode also checks that the synchronized pulse is within 4ms Turn the power off by pressing the On Off key to complete the check 7 3 Printing Check by Connecting with the PC PT 2300 2310...

Page 64: ...CHAPTER III ELECTRONICS ...

Page 65: ...Points III 4 1 Key contacts matrix III 4 2 Solder points III 5 3 2 5 Power On Off Circuit and Power Saving Circuit III 6 1 Power On Off circuit III 6 2 Power saving circuit III 7 3 2 6 DC Motor Driver Circuit III 8 3 2 7 Cutter Motor Driver Circuit III 10 3 2 8 Thermal Head Drive Circuit III 11 3 2 9 Voltage Detector Circuit and Temperature Sensor Circuit III 12 1 Voltage detection circuit III 12 ...

Page 66: ...ii 3 2 14 LCD Driver Circuit III 16 3 2 15 USB Interface Circuit PT 2300 2310 III 17 3 3 POWER SUPPLY PCB III 18 ...

Page 67: ...nes an AC adapter jack battery terminal plates and other related electronic devices to feed power to the control electronics and the DC motors from the AC dapter or batteries 3 1 4 Cassette Sensor This supports the sensors that detect the tape width and ink ribbon type in the tape cassette 3 1 5 DC Motors This machine has two DC motors One feeds tape and ink ribbon and the other drives the cutter ...

Page 68: ...lder points 4 Power ON OFF circuit and power saving circuit 5 DC motor driver circuit 6 Cutter motor driver circuit 7 Thermal head drive circuit 8 Voltage detector circuit and temperature sensor circuit 9 Cassette sensor circuit 10 Cutter sensor circuit 11 Oscillator circuit 12 Reset circuit 13 LCD driver circuit 14 USB interface circuit Fig 3 2 1 Block Diagram of Main PCB ...

Page 69: ...ch integrates a 32 kilobyte RAM The external data bus is 16 bits through which the CPU controls the ROM The internal data bus is 16 bits Fig 3 2 2 CPU and ROM 3 2 3 ROM See Fig 3 2 2 The ROM U12 is a 16 megabit masked ROM which stores control programs and character patterns ...

Page 70: ...licon rubber which functions as a switching element If a particular key is pressed the carbonic silicon rubber of the key short circuits the paired electric nodes carbon printed on the main PCB Fig 3 2 4 shows a key scan timing scheme and KO0 KO6 scanning pulse outputs The CPU scans the key contacts matrix every 14 ms If the CPU reads the same data on an input port four successive times it interpr...

Page 71: ...stomize the machine for the destination Solder points A through C are reserved for the future use for the individual thermal head properties Three margin cutting modes S M and L are provided The CPU reads the solder point status once in the powering on sequence to recognize the customization Fig 3 2 5 Key pad and Solder Points ...

Page 72: ... On Off key state in a sequence quite different from other keys although it is on the key pad Fig 3 2 6 Power ON OFF Circuit and Power Saving Circuit If you press the On Off key the signal IRQO interrupts the CPU on pin 38 Then the CPU switches pin 38 to the input port and enters the process which eliminates the chattering signal components in the signal IRQO ...

Page 73: ...transfers the control to the sleep program module If pin 38 is High the CPU interprets the input as a noise and keeps the main program module 3 Even if releasing the On Off key makes a chattering noise so as to generate IRQO the CPU interprets the signal as a noise for 10 ms between C and D and then transfers the control to the sleep program module 2 Power saving circuit The circuit diagram of the...

Page 74: ...3 the CPU issues a start stop control signal to the motor driver circuit Fig 3 2 9 shows the control signal and drive current waveforms The DC motor integrates an electronic governor circuit which handles the variation of the drive source voltage VBT in order to keep the rotation speed constant Fig 3 2 8 DC Motor Driver Circuit ...

Page 75: ...the two photo interrupters While the pulses of P52 detect the rotation angle the pulses of P51 which is dephased with P52 by 90 degrees detect the rotation direction When five pulses of P52 are input 1 dot is printed Fig 3 2 9 Motor Control Signal and Drive Current ...

Page 76: ... again the CPU recognizes that the movable blade has returned to the home position after cutting the tape and then applies brake to the DC motor If the sensor level remains Low for 100 ms when the brake is applied the CPU judges that the movable blade stops in the home position and stops the normal motor drive sequence If the movable blade sticks in the home position for 300 ms or does not return ...

Page 77: ...ltage level converter converting from 3 3V to 5V Synchronizing with the 3 7 MHz clock on pin 63 P34 SLK0 the CPU outputs serial print data containing 128 dot frame 8 x 16 bit map through pin 59 P30 TXD0 to the drivers printing 128 dot data in practice Synchronizing with the pulses of the encoder as shown in Fig 3 2 9 the machine prints If the CPU runs out of control this circuit cuts off power to ...

Page 78: ...rinting If the voltage level of the MTV drops below approx 6 9 V the CPU displays the following message to warn you of a low battery after completion of printing If it drops below approx 6 4 V the CPU interrupts the printing and displays the following message to warn you of a very low battery If it drops below approx 5 8 V the CPU immediately shuts down the power If it rises over approx 15 5 V the...

Page 79: ...ssette as listed in Table 3 2 1 Fig 3 2 13 Cassette Sensor Circuit 1 Switch ON ID hole closed 0 Switch OFF ID hole opened Width Cassette type SW1 SW2 SW3 SW4 SW5 No tape cassette loaded 0 0 0 0 0 6mm Laminated tape cassette 0 0 1 0 0 Non laminated tape cassette 0 0 1 1 0 9mm Laminated tape cassette 1 1 1 0 0 Non laminated tape cassette 1 1 0 0 0 12mm Laminated tape cassette Stamp tape cassette M 0...

Page 80: ...e switch contact If the cutter motor is driven the linked movable blade moves to cut tape releasing the cutter sensor to open the switch contact The CPU continues to run the cutter motor until the switch contact closes again Fig 3 2 14 Cutter Sensor Circuit 3 2 12 Oscillator Circuit Fig 3 2 15 shows the oscillator circuit It generates 20 MHz source which acts as a CPU basic clock Fig 3 2 15 Oscill...

Page 81: ...battery output drops below the specified level When the machine is loaded with batteries or its AC adapter is plugged in pressing the On Off key raises the 3 3 source 3 3 BV which feeds power to the logic circuitry After approx 80 ms from when the 3 3 BV reaches approx 2 8 V point A in Fig 3 2 17 the reset IC PST3628 Q10 operates to turn the RESET from Low to High When the power is cut off or the ...

Page 82: ... data RAM CPU interface circuit instruction execution unit CR oscillation circuit 16 source drivers and 61 segment drivers It stores data sent from the CPU into the embedded 2560 bit RAM and drives the dot matrix LCD elements through the source segment drivers Fig 3 2 18 LCD Driver Circuit ...

Page 83: ... PT 2300 2310 Fig 3 2 19 shows the USB interface circuit U4 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 19 USB Interface Circuit ...

Page 84: ...ogic circuitry and the thermal print head and motor drive sources Connecting the AC adapter plug with the AC jack J1 cuts off the power fed from the batteries and feeds power from the AC adapter Fig 3 3 2 shows the polarity of the AC adapter plug Fig 3 3 1 Power Supply PCB Fig 3 3 2 AC Adapter Plug ...

Page 85: ...CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE ...

Page 86: ...ooting Flows IV 2 1 Tape feeding failure IV 2 2 Printing failure IV 5 3 Powering failure Nothing appears on the LCD IV 8 4 No key entry possible IV 11 5 Tape cutting failure IV 12 6 Interface port failure PT 2300 2310 IV 13 7 Abnormal LCD indication IV 14 8 Tape cassette type not identified IV 15 4 2 ERROR MESSAGE IV 16 4 2 1 Error Message List IV 16 ...

Page 87: ...n one trouble source is found plan the most reasonable repairing procedure after reviewing the relationship between them 2 When supplying power to this machine having problems from either a set of batteries or the AC adapter make sure that its output voltage level is 11 to 13V under no load 3 When supplying power from a stabilized power unit use the power unit with approx 3A capacity and choose th...

Page 88: ...IV 2 4 1 3 Troubleshooting Flows 1 Tape feeding failure ...

Page 89: ...IV 3 ...

Page 90: ...IV 4 ...

Page 91: ...IV 5 2 Printing failure ...

Page 92: ...IV 6 ...

Page 93: ...IV 7 ...

Page 94: ...IV 8 3 Powering failure Nothing appears on the LCD ...

Page 95: ...IV 9 ...

Page 96: ...IV 10 ...

Page 97: ...IV 11 4 No key entry possible ...

Page 98: ...IV 12 5 Tape cutting failure ...

Page 99: ...IV 13 6 Interface port failure PT 2300 2310 ...

Page 100: ...IV 14 7 Abnormal LCD indication ...

Page 101: ...IV 15 8 Tape cassette type not identified ...

Page 102: ...t when you press return key 7 LINE LIMIT TROP DE LIGNES MAX 7 ZEILEN lines already exist when you press return key 6 LINE LIMIT TROP DE LIGNES 5 blocks already exist when you try to make next block 5 BLOCK LIMIT 5 BLOCS MAXI MAX 5 BLÖCKE No text has been entered in the display when you try to print store a text file in the memory do repeat printing BUFFER EMPTY MEMOIRE VIDE SPEICHER LEER BUFFER EM...

Page 103: ...EUR COUPE When the setting marks of TAB is over 50 TAB LIMIT TAB MAX ZU VIELE TAB STOPS TAB LIMIT TABULATION MAXI Using Euro converter the result of conversion overs 12 characters OVERFLOW SURCAPA KAPAZITÄT ERSCHÖPET Using Euro converter conversion rate is not inputted DIVIDE BY ZERO ERROR ERREUR ZERO FEHLER KURS 0 If a 24mm tape cassette is not installed when a layout for 24mm tape is selected SE...

Page 104: ... being sent from the computer to P touch Or you try to print when the baud rates of the computer and the P touch is not same INTERFACE ERROR ERREUR INTERFACE If you change tape cassette while the computer is sending print data to the P touch CASSETTE CHANGED CASSETTE CHANGÉE When the checksum error occurs When failing to initialize the machine because of corruption of the keyword EEPROM ERROR ERRE...

Page 105: ...APPENDICES 1 Software to Write the Serial Number 2 Circuit Diagrams A Main PCB PT 2300 2310 B Main PCB PT 2450EU DEU GER BEL C Main PCB PT 2450FR FRA D Sub PCB PT 2300 2310 E Sub PCB PT 2450 ...

Page 106: ...eck that the OS of your PC is Windows 98 or Windows 98SE Install the driver beforehand 1 Connect the USB cable between PT 2300 2310 and the PC 2 After starting the OS turn on the power switch of PT 2300 2310 3 Double click and start the software to write the serial number of PT 2300 2310 file name pt23test exe The window as shown below appears Fig 1 4 Select PTUSB PT 2300 2310 000000001 in the pul...

Page 107: ...erial number box is written into the machine and the message such as Complete to write the serial number Current serial number G1J497587 appears 7 Writing the serial number is finished Turn off the power switch of the machine and disconnect the USB cable CAUTION While running the other inspection software or printing ensure not to start this software While running the software also ensure not to s...

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Page 113: ...Aug 2001 8V2020BE0 Printed in Japan ...

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