Brother PT 1000 - P-Touch 1000 B/W Thermal Transfer Printer Service Manual Download | Manualshive

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SERVICE MANUAL

MODEL: PT-1000/1050

/GL100

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Summary of Contents for PT 1000 - P-Touch 1000 B/W Thermal Transfer Printer

Page 1: ...SERVICE MANUAL MODEL PT 1000 1050 GL100 ...

Page 2: ...lways 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 appendixes CHAPTER I SPECIFICATIONS CHAPTER II THEORY OF OPERATION CHAPTER III DISASSEMBLY REASSEMBLY CHAPTER IV TROUBLESHOOTING Appendix A Main PCB Circuit Diagram Appendix B Key PCB Circuit Diagram Copyright Brother 2004 All rights reserved N...

Page 3: ...anism II 2 2 1 3 Tape Ribbon Feed Mechanism II 4 2 1 4 Tape Cutter Mechanism II 6 2 1 5 Cutter Safety Lock Mechanism II 7 2 1 6 Cutter Jam Prevention Mechanism II 8 2 2 Outline of Control Electronics II 9 2 2 1 Configuration II 9 2 2 2 Main PCB II 11 1 Block Diagram II 11 2 Solder Points II 12 3 Identification of Tape Cassette Type II 13 CHAPTER III DISASSEMBLY REASSEMBLY 3 1 Disassembly Reassembl...

Page 4: ...ber 49 Key III 13 3 2 Final Check and Inspection Mode III 14 CHAPTER IV TROUBLESHOOTING 4 1 Precautions IV 1 4 2 After Repairing IV 1 4 3 Troubleshooting Flows IV 2 1 Tape feeding failure IV 2 2 Printing failure IV 4 3 Powering failure Nothing appears on the LCD IV 6 4 No key entry possible IV 7 5 Tape cassette type not identified IV 8 Appendix A Main PCB Circuit Diagram Appendix B Key PCB Circuit...

Page 5: ... x 55 mm 4 3 x 7 7 x 2 2 inches excl keys cutter lever and bottom feet 2 Weight Machine proper Approx 335 g 1 1 2 Keyboard 1 Entry system 49 rubber keypad 2 Key arrangement See Figure 1 1 2 1 1 3 Display 1 Display type Liquid crystal display LCD 2 Number of columns 8 columns x 1 row See Figure 1 1 2 3 Number of guidance indicators 11 See Figure 1 1 2 ...

Page 6: ...195 mm wide by 0 141 mm high 4 Character size Size Width High 1 2 3 4 5 28 dots 56 dots 28 dots 56 dots 112 dots 28 dots 28 dots 56 dots 56 dots 56 dots 1 1 5 Tape Cassette 1 Cassette Cartridge type TZ cassette 2 Types of tape cassettes Laminate tape cassette Non laminate tape cassette Fabric tape cassette 3 Tape size Types of tape Width Laminate tape 6 9 12 mm Non laminate tape 6 9 12 mm Fabric t...

Page 7: ...I 3 USA version Figure 1 1 2 1 Display and Key Arrangement ...

Page 8: ...I 4 EUROPE version Figure 1 1 2 2 Display and Key Arrangement ...

Page 9: ...I 5 UK version GL 100 Figure 1 1 2 3 Display and Key Arrangement ...

Page 10: ...ry cells Optional AC adapter available AD 30 U S A Model G1 Europe 2 Battery type Alkaline dry cells LR03 that come with the machine 3 Service life of batteries Will last through one 12 mm wide tape cassette and then some at room temperature and normal humidity 4 Automatic powering off Yes If the machine remains unused for approx 5 minutes it automatically turns itself off 5 Low battery detection ...

Page 11: ...tions 1 3 1 Initializing When the machine power is off pressing the key with both the Function and R keys held down initializes the machine When releasing those keys be sure to first release the key and then release the Function and R keys ...

Page 12: ...applies current to the selected ones out of the 64 heating elements If the selected heating element s generates heat the ink on the sandwiched ribbon will be melted and transferred to the tape producing a dot s on the tape The ink ribbon and the tape are advanced and then the next heating cycle is repeated thus forming a graphic pattern on the tape n Graphic Pattern Formation While the drive motor...

Page 13: ...er has a holder cam on the inside Closing the cassette cover causes its holder cam to press section A of the roller holder ASSY as shown below This pivots the roller holder ASSY around the shaft provided on the frame ASSY so as to press the roller holder ASSY against the thermal head side Figure 2 1 2 Holder Cam on the Cassette Cover Figure 2 1 3 Holder Cam and Roller Holder ASSY ...

Page 14: ...n gear becomes engaged with the platen idle gear The tape feed sub roller is pressed perpendicularly against the tape feed roller built in the tape cassette with the tape and adhesive base paper when using laminate tape cassettes sandwiched inbetween under a uniform load by the upper and lower roller holder springs At the same time the sub roller gear becomes engaged with the tape idle gear Openin...

Page 15: ...ain to the platen idle gear which rotates the platen gear and tape idle gear which rotate the tape feed roller and its sub roller at the same rotation speed Accordingly the sandwiched tape and ink ribbon will be advanced at the constant speed When a laminate tape cassette is mounted the sandwiched laminate tape ink ribbon and adhesive base tape will be advanced together Figure 2 1 5 Tape Feeding M...

Page 16: ...am located at the middle of the gear 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 feed sp...

Page 17: ...er ASSY consists of a cutter case ASSY and cutter board Pressing the cutter lever pushes out the cutter blade against the cutter board cutting the printed tape coming through the cutter case ASSY and cutter board Figure 2 1 7 Tape Cutter Mechanism ...

Page 18: ...er stopper of the roller holder ASSY blocks the end of the cutter lever preventing the cutter blade from getting driven for safety as shown below Closing the cassette cover releases the cutter safety lock mechanism If you close the cassette cover the roller holder ASSY pivots towards the thermal head so that the cutter lever stopper does not interfere with the cutter lever Figure 2 1 8 Cutter Safe...

Page 19: ...or feeding tape pressing the cutter lever turns on the cutter sensor switch via the cutter sensor arm and immediately stops the DC motor This prevents the cutter blade from interrupting the tape being fed and causing a tape jam Figure 2 1 10 Cutter Jam Prevention Mechanism ...

Page 20: ...ters wide by one row high and it has 11 guidance indicators n Motor The DC motor is a power source to advance tape and ink ribbon n Thermal print head This is a thick film thermal print head which integrates a heat generator consisting of 64 heating elements vertically aligned in 180 dpi and driver circuitry n Tape cassette sensor switch ASSY According to the states of the three sensor switches on...

Page 21: ...II 10 Figure 2 2 1 Configuration of the Electronic Part ...

Page 22: ...n PCB The main PCB consists of the following 1 CPU 2 DC motor driver 3 Thermal head driver 4 Oscillation circuit 5 Solder points 6 Power supply circuit 7 Key detector circuit 8 Voltage detector circuit 9 Temperature sensor detector 10 LCD driver Figure 2 2 2 Block Diagram of Main PCB ...

Page 23: ...s A and C determine the power feeding period to the thermal print head to customize the machine for the individual thermal head properties head rank as listed in Table 2 2 2 If the print head unit is replaced with a new one the soldered state may need to be changed according to the head rank code printed on the head flat cable of the new print head Table 2 2 2 Head Rank Solder points Head rank cod...

Page 24: ...oes on With the states of those sensor switches the CPU identifies the tape width and tape cassette type as listed below Table 2 2 3 Coded Value for Identifying Tape Cassette Type 0 Switch OFF ID hole opened 1 Switch ON ID hole closed Tape width Cassette type SW2 SW3 SW7 No tape cassette loaded 0 0 0 Laminate tape cassette 0 1 0 6 mm Non laminate tape cassette 0 1 1 Laminate tape cassette 1 1 0 9 ...

Page 25: ...rews to the torque values listed below n Tightening Torque List Location Screw type Q ty Tightening torque Bottom cover Taptite bind B M2 6 x 10 5 0 39 0 10 N m 4 1 kgf cm Grounding wires Screw bind M3 x 4 2 0 59 0 10 N m 6 1 kgf cm Frame ASSY Taptite bind B M2 6 x 6 3 0 39 0 10 N m 4 1 kgf cm DC motor ASSY Screw pan 1 7 x 2 5 2 0 10 to 0 20 N m 1 to 2 kgf cm Head ASSY Screw bind M3 x 4 1 0 59 0 1...

Page 26: ...ase the latch then remove the cassette cover Figure 3 1 1 Removing the Cassette Cover 3 Remove the tape cassette and six dry cells Figure 3 1 2 Removing the Tape Cassette and Dry Cells n Reassembling notes When setting the cassette cover back onto the bottom cover first fit the two tabs into the holes provided in the bottom cover and snap the cassette cover into place ...

Page 27: ...flat cable from the main PCB 5 Remove the cutter sensor arm and its spring from the upper cover 6 Release the two grounding wires that ground the key PCB from the frame ASSY by removing the two screws 7 Remove the adhesive tape a that secures the switch ASSY leads to the bottom cover Then unhook the switch ASSY cassette sensor switches from the three latches and take it out of the bottom cover 8 T...

Page 28: ...III 4 Figure 3 1 4 Separating the Bottom Cover from the Upper Cover ...

Page 29: ...sition a and key PCB two positions b and c and that adhesive tape at position a prevents those leads from routing over the ribs the terminal lead black is routed between the terminal press cover and bottom cover and that the grounding wire FG1 is routed beneath the terminal lead the motor loads are routed beneath the head flat cable the head flat cable is taped to the frame ASSY with a slight curv...

Page 30: ...tter lever also comes off Figure 3 1 6 Removing the Frame ASSY and Cutter Lever n Reassembling notes Before setting the cutter lever back into place be sure to apply a half of a rice sized pinch of grease Shin Etsu Silicone G501 to the cutter lever as shown above When soldering the motor leads to the main PCB check the wire ID colors as shown above and keep solder within the specified soldering po...

Page 31: ...rews and take the DC motor ASSY off the frame ASSY Figure 3 1 7 Removing the DC Motor ASSY 2 Roller holder ASSY Remove the retaining ring and pull out the roller holder ASSY together with its release spring Figure 3 1 8 Removing the Roller Holder ASSY and Release Spring ...

Page 32: ...ASSY fit the two oblong holes provided in the head ASSY over two positioning bosses on the frame ASSY and center those bosses in those holes as shown below When setting the roller holder ASSY into place first fit end a of the release spring in guide groove A of the roller holder ASSY Set the roller holder ASSY to the frame ASSY and then hook end b of the release spring on cutout B as shown in Figu...

Page 33: ... the terminal press cover inwards with the tip of a flat screwdriver and push down the terminal press cover 3 Release the terminal ASSY from the terminal press cover Figure 3 1 10 Removing the Terminal Press Cover and Releasing the Terminal ASSY n Reassembling notes Make sure that the terminal press cover is latched on the bottom cover ...

Page 34: ...B from the bottom cover 2 Unlatch the locking pawl of the terminal ASSY with the tip of a flat screwdriver and release it from the bottom cover Figure 3 1 11 Removing the Battery Terminals B and Releasing the Terminal ASSY n Reassembling notes Make sure that the terminal ASSY is latched on the bottom cover ...

Page 35: ...cking pawl on each of three battery terminals A and push down each terminal A with the tip of a flat screwdriver Figure 3 1 12 Removing the Battery Terminals A n Reassembling notes Make sure that the three battery terminals A are latched on the bottom cover ...

Page 36: ...ift up the top edge of the key PCB slightly and slide it towards the main PCB 5 Push the locking pawl and take the LCD out of the upper cover with a flat screwdriver as shown below NOTE Do not pull the LCD flat cable Figure 3 1 13 Unsoldering the Switch ASSY and Cutter Sensor ASSY and Removing Main PCB ASSY n Reassembling notes Before setting the main PCB ASSY into place wipe any fingerprints or d...

Page 37: ...ber 49 Key 1 Lift the rubber 49 key up and out of the upper cover Figure 3 1 14 Removing the Rubber 49 Key n Reassembling notes Make sure that the rubber 49 key is fitted over the two positioning bosses and two positioning pins ...

Page 38: ... close the cassette cover 2 Make sure that the internal memory has been initialized and the power is off For the initialization procedure refer to n After completion of reassembly above 3 While holding down the Function and K keys press the key to turn the machine on When releasing those keys be sure to first release the key and then release the Function and K keys The machine will enter the inspe...

Page 39: ...roperties The LCD shows the current head rank as listed below If the print head unit is replaced with a new one the soldered state may need to be changed according to the head rank code printed on the head flat cable of the new print head Solder points Head rank The LCD shows A C A A Low Closed High Open B B High Open High Open C C High Open Low Closed Source voltage This machine shows X when driv...

Page 40: ...de by pressing the 2 key except during the key depressing test in the KEY submode With LCD check screen 2 displayed press the key The machine displays CAST and enters the CASSETTE submode Press the key The machine checks the current state of the three cassette sensor switches and displays the result as shown below If the state of each sensor switch is ON Low or OFF High 1 or 0 will be displayed Th...

Page 41: ...wn below a key to be pressed next will appear so follow the indication In this example you should press the key If the pressed key works normally the key to be pressed next will appear If any error is noted the LCD shows the X together with the key to be pressed as shown below Press the key displayed on the LCD to proceed If this error persists and the test no longer proceeds then go to Chapter IV...

Page 42: ...ce you may check the tape cutter in any other submode With the CUT displayed the machine is in the CUT submode Press the key The machine displays FEED feeds the tape and then displays 1 Cut the tape The machine displays FEED feeds the tape and then displays 2 Cut the tape The machine displays FEED feeds the tape and then displays 3 Cut the tape The machine displays PRN1 and enters the PRINT1 submo...

Page 43: ...should be 59 2 3 mm After completion of printing the machine automatically initializes the internal memory and then turns itself off If the print length is out of the specified range adjust the variable resistor on the main PCB by using a flat screwdriver as shown below If the print length is longer or shorter rotate the variable resistor for adjustment After the adjustment print a test pattern ag...

Page 44: ...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 make sure that its output voltage level is 8 to 10V under no load 3 Before starting disassembly jobs first remove dry cells and discharge electrolytic capacitor C20 on the key PCB for at least 3 seconds with a resistor of 100W...

Page 45: ...IV 2 4 3 Troubleshooting Flows 1 Tape feeding failure ...

Page 46: ...IV 3 ...

Page 47: ...IV 4 2 Printing failure ...

Page 48: ...IV 5 ...

Page 49: ...IV 6 3 Powering failure Nothing appears on the LCD ...

Page 50: ...IV 7 4 No key entry possible ...

Page 51: ...IV 8 5 Tape cassette type not identified ...

Page 52: ...NAME CODE MAIN PCB CIRCUIT DIAGRAM PT1000 Appendix A Main PCB Circuit Diagram Ceramic capacitor LN6004001 ...

Page 53: ...B Key PCB Circuit Diagram NAME CODE KEY PCB CIRCUIT DIAGRAM PT1000 Close the power feeding circuit Battery terminal Black Battery terminal Red Chip Ceramic capacitor Electrolytic capacitor Comma Period LN6046001 ...

Page 54: ...Apr 2004 8V2056BE0 Printed in Japan ...

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