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Brother PT-2500PC Service Manual

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SERVICE MANUAL
MODEL: PT-2500PC

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Summary of Contents for Brother PT-2500PC

  • Page 1 SERVICE MANUAL MODEL: PT-2500PC...
  • Page 2 SERVICE MANUAL MODEL: PT-2500PC...
  • Page 3 © Copyright Brother 1998 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 PREFACE This publication is a service manual covering the specifications, theory of operation, disassembly/ reassembly procedure, and troubleshooting of the Brother label printer PT-2500PC. It is intended for service personnel and other concerned persons to accurately and quickly provide after-sale service for our PT-2500PC.
  • Page 5 CHAPTER I SPECIFICATIONS...

  • Page 6: Table Of Contents

    CONTENTS CHAPTER I SPECIFICATIONS 1.1 MECHANICAL SPECIFICATIONS ..................I-1 1.1.1 External View ......................I-1 1.1.2 Control Buttons......................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 1.1.7 PC Interface ......................I-3 1.2 ELECTRONICS SPECIFICATIONS ..................

  • Page 7: Mechanical Specifications

    1.1 MECHANICAL SPECIFICATIONS 1.1.1 External View (1) Dimensions (W 75 mm 232 mm 159 mm (2) Weight Machine proper Approx. 1.0 kg In package Approx. 2.4 kg Fig. 1.1-1 External View I - 1...

  • Page 8: Control Buttons

    1.1.2 Control Buttons (1) Number of buttons 2 (ON/OFF ( ) and FEED/CUT ( ) buttons) (2) Layout See Fig. 1.1-2. Fig. 1.1-2 Layout 1.1.3 Display (1) Display type LEDs (green/red) 1.1.4 Printing Mechanism (1) Printing method Thermal transfer onto plastic tapes (laminate tape and non-laminate tape) or special tapes (instant lettering tape, non-laminate thermal film tape, iron-on transfer tape, and porous-stamp tape)

  • Page 9: Tape Cassette

    1.1.5 Tape Cassette (1) Cassette Cartridge type (2) Types of tape cassettes - Laminated tape cassette Laminate tape, ink ribbon, and adhesive base tape - Non-laminated tape cassette Non-laminate tape and ink ribbon - Instant lettering tape cassette Instant lettering tape and ink ribbon - Iron-on transfer tape cassette Iron-on tape and ink ribbon - Stamp tape cassette...

  • Page 10: Electronics Specifications

    1.2 ELECTRONICS SPECIFICATIONS 1.2.1 Power Supply (1) Power supply Dedicated AC line adapter (9.5 VDC, 1.3A) provided as attachment I - 4...
  • Page 11 CHAPTER II MECHANISMS...
  • Page 12 CONTENTS CHAPTER II MECHANISMS 2.1 THEORY OF OPERATION ....................... II-1 2.1.1 Print Mechanism ......................... II-1 2.1.2 Roller Holder ASSY Setting & Retracting Mechanism............II-3 2.1.3 Platen-head Contact Switching Mechanism According to Tape Cassete ......II-4 2.1.4 Tape & Ribbon Feed Mechanism ..................II-5 2.1.5 Automatic Tape Cutter Mechanism..................

  • Page 13: Theory Of Operation

    2.1 THEORY OF OPERATION 2.1.1 Print Mechanism n Structure of Thermal Head This machine uses thermal transfer printing. The thermal print head has a heat generator consisting of 128 heating elements which are vertically aligned as shown in Fig. 2.1-1. Each heating element is 0.195 mm wide by 0.141 mm high. Fig.
  • Page 14 [ For stamp tape cassettes ] If the selected 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.

  • Page 15: Roller Holder Assy Setting & Retracting Mechanism

    2.1.2 Roller Holder ASSY Setting & Retracting Mechanism This mechanism consists of the release lever, release rod, and roller holder ASSY. The roller holder ASSY incorporates the platen holder and the sub roller holder. These holders support the platen and the tape feed sub roller so that they can move perpendicularly to the thermal head and the tape feed roller, respectively, as well as rotating freely.

  • Page 16: Platen-Head Contact Switching Mechanism According To Tape Cassete

    2.1.3 Platen-head Contact Switching Mechanism According to Tape Cassette This mechanism consists of the cassette rod, release lever, and release rod. As described in Subsection 2.1.2, loading a tape cassette and closing the cassette cover pushes down the release lever which presses the roller holder ASSY against the thermal head.

  • Page 17: Tape & Ribbon Feed Mechanism

    2.1.4 Tape & Ribbon Feed Mechanism This mechanism consists of a tape feed motor, gear train, and roller holder ASSY. n Tape Feeding When you load a tape cassette and close the cassette cover, the platen and the thermal head sandwich the tape and ink ribbon (only the tape when using non-laminated thermal file tape cassettes or stamp tape cassettes) inbetween.
  • Page 18 n Adhesive Base Tape Feeding (only for laminated tape cassettes) A laminated tape cassette contains both a transparent laminate tape roll and a separate adhesive base tape roll. When a transparent laminate tape and an adhesive base tape pass through the contact point (between the tape feed roller and tape feed sub roller), they are then bonded together into a single, printed tape.

  • Page 19: Automatic Tape Cutter Mechanism

    2.1.5 Automatic Tape Cutter Mechanism The tape cutter unit consists of a stationary blade and a movable blade driven by the cutter motor. Upon completion of printing and tape feeding, the CPU activates the cutter motor (DC motor) whose clockwise rotation is transmitted via the idle gears to the cutter moving gear.

  • Page 20: Open Button

    2.1.6 Open Button Sliding the open button turns the cover lock lever as illustrated below, releasing the cassette cover. Fig. 2.1-7 Open Button 2.1.7 Cassette Cover Sensor The cassette cover sensor is provided on the sensor PCB. If you close the cassette cover, its sensor tab pushes down the sensor, signaling that the cassette cover is closed.

  • Page 21: Disassembly And Reassembly

    2.2 DISASSEMBLY AND REASSEMBLY PT99010 n Safety Precautions (1) The disassembly or reassembly work should be carried out on a grounded antistatic sheet. Otherwise, the LSIs and electronic parts may be damaged due to the electricity charged in your body. (2) When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum foil.

  • Page 22: Disassembly Procedure

    2.2.1 Disassembly Procedure [ 1 ] Removing the Tape Cassette (1) Slide the open button and open the cassette cover fully as shown below. (2) Pull the tape cassette up and out of the machine. TIP: Opening the cassette cover releases the platen from the thermal head, providing you with enough space to replace the tape cassette.
  • Page 23 (2) Hold sections "X" of the front cover and pull out the front cover. NOTE: Do not pull the front cover away from the machine. The sub PCB flat cable fixed to the front cover is connected to the main PCB mounted in the bottom cover. (3) Unhook the sub PCB flat cable from the cable guide on the cover lock lever mounted on the inside the body cover.
  • Page 24 (5) Disconnect the sensor PCB flat cable and the tape end sensor harness from the main PCB. NOTE: When disconnecting the harness connector, hold the connector body not the cable. (6) Disconnect the sub PCB flat cable from the main PCB. Fig.

  • Page 25: Removing The Tape End Sensor Assy, Sensor Pcb Assy, Cover Lock Lever And Open Button From The Body Cover

    [ 3 ] Removing the Tape End Sensor ASSY, Sensor PCB ASSY, Cover Lock Lever, and Open Button from the Body Cover (1) Close the cassette cover and place the body cover upside down. (2) Take out the tape end sensor ASSY by removing the screw. (3) Take out the sensor PCB ASSY by removing the screw.

  • Page 26: 4 ] Removing The Cassette Cover

    [ 4 ] Removing the Cassette Cover (1) Twist off the long end of the cover open spring from the cassette cover arm and remove the spring from the cassette cover bracket. Fig. 2.2-8 Twisting off the Cover Open Spring (2) Remove two screws each from the two cassette cover brackets.
  • Page 27 (4) Open the cassette cover fully. (5) As shown below, pull out the cassette cover arms from the body cover. Fig. 2.2-10 Removing the Cassette Cover • ‚ ƒ „ (6) Remove the cassette hold spring by unhooking it in the order of , and Fig.

  • Page 28: Removing The Sub Pcb Assy, Feed/Cut Button, And On/Off Button From The Front Cover

    [ 5 ] Removing the Sub PCB ASSY, FEED/CUT Button, and ON/OFF Button from the Front Cover (1) Take off the sub PCB ASSY from the front cover by removing the two screws. (2) Lift up the FEED/CUT button together with the key return spring. (3) Lift up the ON/OFF button together with the key return spring and reflection sheet.

  • Page 29: 6 ] Removing The Mechanical Unit Together With The Cutter-Related Components

    [ 6 ] Removing the Mechanical Unit Together with the Cutter-related Components (1) Remove the screw from the grounding wire. (2) Remove the screw that secures the mechanical unit to the bottom cover. (3) Disconnect the following from the main PCB: - Tape feed motor harness (P5) - Cutter sensor harness (P3) - Cutter motor harness (P4)

  • Page 30: 7 ] Removing The Cutter-Related Components

    [ 7 ] Removing the Cutter-related Components (1) Take off the cutter ASSY by removing two screws "a." WARNING: Be careful with the cutter blades. (2) Remove the washer (by using a pin) and take off the cutter moving gear and cutter double gears.

  • Page 31: Removing The Roller Holder Assy, Thermal Head Unit, And Tape Feed Motor From The Frame Assy

    [ 8 ] Removing the Roller Holder ASSY, Thermal Head Unit, and Tape Feed Motor from the Frame ASSY (1) Remove the retaining ring and pull up the cassette rod. (2) Remove the retaining ring from the roller holder ASSY. (3) Unhook the roller holder release spring from the roller holder ASSY and take out the ASSY and the spring.

  • Page 32: 9 ] Removing The Main Pcb Assy And Power Supply Pcb Assy

    [ 9 ] Removing the Main PCB ASSY and Power Supply PCB ASSY (1) Disconnect the power supply harness from the main PCB. (2) Remove the three screws from the main PCB ASSY and take it off. (3) Remove the two screws from the power supply PCB ASSY. Slightly lift up the inner edge of the PCB and take it out in the direction of the arrow as shown below.

  • Page 33: Reassembly Procedure

    2.2.2 Reassembly Procedure [ 1 ] Installing the Main PCB ASSY and Power Supply PCB ASSY (1) Secure the main PCB ASSY to the bottom cover with the three screws. Fig. 2.2-17 Installing the Main PCB ASSY (2) Fit the interface connector and DC jack of the power supply PCB into the cutouts provided in the bottom cover, and then fit the notch over the rib on the bottom cover.

  • Page 34: Installing The Thermal Head Unit, Roller Holder Assy, And Tape Feed Motor Onto The Frame Assy

    [ 2 ] Installing the Thermal Head Unit, Roller Holder ASSY, and Tape Feed Motor onto the Frame ASSY (1) Fit the release rod roller into the release rod. (2) Apply grease (Silicone grease G501) to the inside edge of the square hole provided in the release rod and the surface of the release rod roller.
  • Page 35 (8) Set the roller holder release spring on the roller holder ASSY so that its straight end is fitted to section "A" on the ASSY, and install the ASSY with the spring to the head frame. Then hook the spring's bent end on section "B" provided on the head frame. NOTE: Take care not to let the roller holder release spring scratch the thermal head and flat cable.
  • Page 36 (12) Move the release lever up and down to make sure that the roller holder pivots smoothly. Fig. 2.2-23 Checking the Release Lever II - 24...

  • Page 37: 3 ] Installing The Cutter-Related Components

    [ 3 ] Installing the Cutter-related Components (1) Set the cutter sensor actuator on the mechanical unit as illustrated below. (2) Secure the cutter sensor ASSY with the screw. Fig. 2.2-24 Installing the Cutter Sensor Actuator and Cutter Sensor ASSY (3) As shown below, set the cutter motor ASSY on the mechanical unit with the harness facing up.
  • Page 38 (5) Secure the cutter ASSY with the two screws so that the long hole provided in the moving blade becomes fitted over the boss of the cutter moving gear. WARNING: Be careful with the cutter blades. (6) Apply grease (Silicon grease G501) to the inside edge of the long hole provided in the moving blade.

  • Page 39: 4 ] Installing The Mechanical Unit Together With The Cutter-Related Components

    [ 4 ] Installing the Mechanical Unit Together with the Cutter-related Components (1) While holding up the mechanical unit as illustrated below, connect the head flat cable (P8) to the main PCB. (2) Put the mechanical unit into place. (3) Align the frame edge below the cutter motor with the rib of the bottom cover, then secure the mechanical unit with the screw.

  • Page 40: Cover

    [ 5 ] Installing the ON/OFF Button, FEED/CUT Button, and Sub PCB ASSY to the Front Cover (1) As illustrated below, insert the tabs of the reflection sheet in the two guide of the ON/OFF button. (2) Set the key return spring on the ON/OFF button and put them back into place. (3) Set the key return spring on the FEED/CUT button and put them back into place.

  • Page 41: 6 ] Installing The Cassette Cover

    [ 6 ] Installing the Cassette Cover (1) Set the cassette hold spring to the cassette cover in the order of •, ‚, ƒ, and „. •: Insert the long spring end into the hole. ‚: Fit the coil over the rib. ƒ: Fit the coil over the rib.
  • Page 42 (5) Turn the body cover upside down. (6) While pushing the cassette cover arms outwards, set the cassette cover brackets into place, each at one time. Fig. 2.2-31 Setting the Cassette Cover Brackets (7) Set the cover open spring to the right-hand cassette cover bracket. Hook short end "a"...

  • Page 43: 7 ] Installing The Open Button, Cover Lock Lever, Sensor Pcb Assy, And Tape End Sensor Assy To The Body Cover

    [ 7 ] Installing the Open Button, Cover Lock Lever, Sensor PCB ASSY, and Tape End Sensor ASSY to the Body Cover (1) Snap the open button into the slot provided in the body cover, then secure the open button with the screw. (2) Set the lock lever spring on the cover lock lever and install them on the body cover so that the square opening becomes fitted over the boss of the open button.
  • Page 44 (6) Secure the sensor PCB ASSY with the screw. Route the flat cable as illustrated below. (7) Secure the tape end sensor ASSY with the screw. Route the lead wires through the grooves of the rib as illustrated below. Fig. 2.2-34 Installing the Sensor PCB ASSY and Tape End Sensor ASSY II - 32...

  • Page 45: 8 ] Installing The Body Cover And

    [ 8 ] Installing the Body Cover and Front Cover (1) Connect the sub PCB flat cable to the main PCB. NOTE: Insert the cable end into the connector with the solder side facing towards the cutter motor. (2) Fully open the cassette cover. and hold the body cover as shown below. (3) Hold the body cover as shown below, then connect the sensor PCB flat cable and tape end sensor harness to the main PCB.
  • Page 46 (5) Route the sub PCB flat cable on the cable guide provided on the cover lock lever. (6) Install the front cover to the body cover and bottom cover. (7) Secure the front cover with three screws "a" and the body cover with two screws "b." Fig.

  • Page 47: 9 ] Loading A Tape Cassette

    [ 9 ] Loading a Tape Cassette (1) Load a tape cassette and close the cassette cover. Fig. 2.2-38 Loading Tape Cassette II - 35...

  • Page 48: 10 ] Demonstration Print And Final Check

    [ 10 ] Demonstration Print and Final Check (1) Plug the adapter cord in the DC jack of the machine. (2) While holding down the ON/OFF button, press the FEED/CUT button twice to start demonstration print. (3) During the demonstration print, check that the machine prints data and then feeds and cuts the tape correctly.
  • Page 49 CHAPTER III ELECTRONICS...
  • Page 50 CONTENTS CHAPTER III ELECTRONICS 3.1 OUTLINE OF CONTROL ELECTRONICS ..................III-1 3.1.1 Main PCB...........................III-1 3.1.2 Power Supply PCB......................III-1 3.1.3 Sensor PCB ........................III-2 3.1.4 Tape End Sensor PCB .......................III-2 3.1.5 Sub PCB ..........................III-2 3.1.6 Cutter Sensor ........................III-2 3.1.7 Cutter Motor ........................III-2 3.1.8 Tape Feed Motor........................III-2 3.1.9 Thermal Head ........................III-2...

  • Page 51: Outline Of Control Electronics

    3.1 OUTLINE OF CONTROL ELECTRONICS Fig. 3.1-1 shows a block diagram of the control electronics of this machine. The control electronics consists of the components given below. Fig. 3.1-1 Control Electronics of PT-2500PC 3.1.1 Main PCB The main PCB controls all electronic operations. This PCB consists of a CPU, RAM, EEPROM, and motor drivers.

  • Page 52: Sensor Pcb

    3.1.3 Sensor PCB This PCB holds two mechanical sensors; a cassette sensor that detects the tape width and ink ribbon type in a tape cassette loaded and a cover open sensor that detects the opened/closed state of the cassette cover. 3.1.4 Tape End Sensor PCB The tape end sensor uses a photo-interrupter to detect a zebra pattern provided at the...

  • Page 53: Main Pcb

    3.2 MAIN PCB Fig. 3.2-1 shows a block diagram of the main PCB. The PCB consists of the following components: (1) CPU (including the ROM and RAM) (2) SRAM (32-kilobyte) (3) EEPROM (1-kilobit) (4) Power ON/OFF circuit, thermal head control circuit, FEED/CUT switch ON/OFF circuit, and LEDs ON/OFF circuit (5) Cutter motor drive circuit and tape feed motor drive circuit (6) Cassette sensor circuit, cover open sensor circuit, cutter sensor circuit, and tape end...

  • Page 54: Logic Components

    3.2.1 Logic Components [ 1 ] CPU (M30622M8) The CPU (#3) is a 16-bit microprocessor manufactured by Mitsubishi Electric Corp., which controls and manages the entire system. This CPU integrates a 64-kilobyte ROM which stores all programs and a 4-kilobyte RAM. [ 2 ] RAM (SRAM) The RAM is a 32-kilobyte SRAM (#4) which is used as a data buffer.

  • Page 55: Logic And Vh Power, And Related Circuits

    3.2.3 Logic and VH Power, and Related Circuits If the AC line adapter is plugged in the machine, the power supply PCB supplies Vcc (+5V) to the main PCB. Vcc is a power source to the logic circuitry. The moment Vcc is supplied, the reset IC (Q2) operates to turn the RESET signal from Low to High, starting the CPU to run.

  • Page 56: Tape Feed Motor Drive Circuit

    3.2.4 Tape Feed Motor Drive Circuit Fig. 3.2-3 shows a drive circuit of the tape feed motor which feeds tape and ink ribbon. The motor is a 30-mm in diameter, 24-pole, and 108-internal resistance stepping motor. This circuit drives the motor with a bipolar 2-2 phase excitation. The CPU (#3) controls the motor rotation direction with signals on P104 and P105 and turns the motor on and off with an activation signal of the driver IC (TA7774F, #2).

  • Page 57: Cutter Motor Drive Circuit

    3.2.5 Cutter Motor Drive Circuit Figs. 3.2-4 and 3.2-5 show the cutter motor drive circuit and the cutter sensor circuit, respectively. The cutter motor is a DC motor. The CPU (#3) activates the transistor array (TA7291F, #5) through P86 and P87 to drive the cutter motor.

  • Page 58: Circuit Operation

    [ 1 ] Circuit operation The cutter motor drive sequence is described below. The cutter stays in the home position when it is not in operation (The cutter sensor input level is Low). If the CPU issues a tape cutting command, this drive circuit rotates the DC motor clockwise for cutting the tape.

  • Page 59: Cassette Sensor Circuit

    3.2.6 Cassette Sensor Circuit Fig. 3.2-6 shows the cassette sensor circuit which reads the five sensor switches. Loading a tape cassette pushes down some of those five switches to turn them on while keeping other switches off depending upon the ID holes provided in the tape cassette. If a certain ID hole is closed, the corresponding sensor switch goes on.

  • Page 60: Thermal Head Control Circuit

    3.2.7 Thermal Head Control Circuit Fig. 3.2-7 shows the thermal head control circuit. The print head integrates a heat generator (consisting of 128 heating elements vertically aligned in 180 dpi) and a pair of built-in driver ICs which are designed for 64-element control. Synchronizing with the clock on P61, the CPU outputs serial print data containing 128- dot frame (8 x 16 bit map) through P63 to the drivers.

  • Page 61: Head Voltage Detection Circuit And Ambient Temperature Detection Circuit

    3.2.8 Head Voltage Detection Circuit and Ambient Temperature Detection Circuit Fig. 3.2-9 shows the head voltage detection circuit and ambient temperature detection circuit. Through these circuits, the CPU monitors the voltage applied to the thermal head and the ambient temperature and then controls the STR pulse width. (1) Head voltage detection circuit This circuit, which is composed of divider resistors R30 and R29, steps down the power source VH and then feeds the output to the analog input port AN1 of the...

  • Page 62: Oscillation Circuit

    3.2.9 Oscillation Circuit Fig. 3.2-10 shows the oscillation circuit. It generates 14.74 MHz source which acts as a CPU basic clock. The CPU synchronizes its internal operations. Fig. 3.2-10 Oscillation circuit 3.2.10 Tape End Sensor Circuit Fig. 3.2-11 shows the tape end sensor circuit. To detect the tape end, the CPU monitors the voltage level on AN2.

  • Page 63: Switches & Leds Circuit

    3.2.11 Switches & LEDs Circuit Fig. 3.2-12 shows the switches & LEDs circuit which manages the ON/OFF switch and its two LEDs, and FEED/CUT switch. Pressing the FEED/CUT switch turns the CPU's INT2 Low, signaling that the FEED/CUT switch is pressed. Then the CPU activates the tape feeding and cutting mechanisms. The two LEDs show the machine status by illuminating or flashing.

  • Page 64: Reset Circuit

    3.2.13 Reset Circuit Fig. 3.2-14 shows the reset circuit. This circuit prevents the CPU and logic circuitry from malfunctioning in powering-on and -off sequences. Fig. 3.2-15 shows the reset timing when the power is first applied or cut off. Plugging the AC line adapter in the DC jack raises the Vcc which feeds power to the CPU and the logic circuitry.

  • Page 65: Power Supply Pcb

    3.3 POWER SUPPLY PCB 3.3.1 +12V Power Supply Circuit Fig. 3.3-1 shows the +12V power supply circuit. Acting as a DC stepping-up converter, this circuit steps up the AC adapter output to +12 VDC power supplies, VH and VM. The VH is fed to the thermal head and the VM is fed to the tape feed motor and cutter motor.

  • Page 66: Dc Jack-Related Circuit

    3.3.2 +5V Power Supply Circuit Fig. 3.3-2 shows the +5V power supply circuit. A 3-terminal regulator (KIA7805P, Q6) stabilizes the Vcc (approx. 5V). During non-printing, the regulator is supplied with the VAD fed through the AC line adapter output. During printing, it is supplied with "A" (+12V) fed from the +12V source;...

  • Page 67: Interface Circuit

    3.3.4 Interface Circuit Fig. 3.3-5 shows the interface circuit. This 8-pin interface port serially receives print data from the connected PC. Driver IC (ADM202, #1) converts the TTL logic level signals to the RS-232C compliant signals (+12V and -12V), and vice versa. RXD is an input signal line to receive print data from the connected PC, which enables high transmission rate up to 115.2 Kbps.
  • Page 68 CHAPTER IV TROUBLESHOOTING...
  • Page 69 CONTENTS CHAPTER IV TROUBLESHOOTING 4.1 PRECAUTIONS ON TROUBLESHOOTING ...................IV-1 4.2 TROUBLESHOOTING FLOWS ......................IV-2 [ 1 ] Printing failure with particular dots missing ................IV-2 [ 2 ] Tape cassette type not identified ..................IV-2 [ 3 ] The ON/OFF lamp (LEDs) will not come on ...............IV-3 [ 4 ] No printing is performed .

  • Page 70: Precautions On Troubleshooting

    4.1 PRECAUTIONS ON TROUBLESHOOTING (1) Before testing electric conductivity with a circuit tester, unplug the AC line adapter and check that power is not supplied to the machine. (2) If a printing problem occurs, unplug the thermal head flat cable and check the thermal head and related circuits.

  • Page 71: Troubleshooting Flows

    4.2 TROUBLESHOOTING FLOWS [ 1 ] Printing failure with particular dots missing [ 2 ] Tape cassette type not identified IV - 2...

  • Page 72: 3 ] The On/Off Lamp (Leds) Will Not Come On

    [ 3 ] The ON/OFF lamp (LEDs) will not come on [ 4 ] No printing is performed. IV - 3...

  • Page 73: 5 ] Interface Malfunctions

    [ 5 ] Interface malfunctions [ 6 ] No tape cutting IV - 4...

  • Page 74: 7 ] Tape Feeding Error

    [ 7 ] Tape feeding error IV - 5...
  • Page 75 IV - 6...
  • Page 76 APPENDICES Circuit Diagrams A: Main PCB B: Power Supply PCB...
  • Page 77 A. Main PCB N C : 2 , 7 , 1 2 , 1 3 P5 (Tape feed motor) ZH, 4-pin I N A I N B V S 2 A M T O N V S 1 B G N D V S 1 A G N D V C C...
  • Page 78 B. Power Supply PCB Power Supply PCB NAME Circuit Diagram TZPC CODE UT2408000...
  • Page 79 Nov. ’98 5V2086BE0 Printed in Japan...

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