brother P-touch 65 Label Maker

Product Information

Specifications

Mechanical Specifications

• Dimensions (W x D x H): 153 mm x 105 mm x 63 mm
• Weight:
  • Machine proper: Approx. 310 g
  • In package: 410 g or less (including dry cells and a tape cassette)
• Keyboard:
  • Entry system: Rubber key pad
  • Number of alphanumeric and symbol keys: 31
  • Number of function keys: 12 (including On/Off key)
  • Key arrangement: See Figure 1.1-2
• Display:
  • Display type: Liquid crystal display (LCD)
  • Number of columns: 8
  • Number of indicators: 11
  • Character size: 5 dots wide by 7 dots high
  • Field-of-view angle adjustment: Fixed by a resistor
• Printing Mechanism:
  • Print system: Direct thermal printing (Fixed print head and tape feeding mechanism)
  • Print speed: 7.5 mm/second (Typical)
  • Print head:
  • Type: Thermal print head
  • Size of heating element: 0.136 mm wide by 0.106 mm high
  • Character size (dots):
  • Standard (Small) size: 32 x 20
  • Double width (W2): 32 x 40
  • Double height (H2): 64 x 20
  • Large size: 64 x 40
• Tape Cassette:
  • Cassette: Cartridge type
  • Tape type: Direct thermal print tape (Metal deposit layer on substrate)
  • Tape size:
  • Width: 9, 12 mm
  • Length: 8 m
  • Tape cassette packed with the machine:
  • Character color: Black
  • Tape color: White
  • Tape width: 12 mm or 9 mm (EU)
  • Tape length: 4 m
• Tape Cutter:
  • Tape cutting: Manual cutting with the cutter lever
  • Cutter unit: User-replaceable

Electronics Specifications

Character Generator

The character generator specifications are not provided in the manual.

Power Supply

The power supply specifications are not provided in the manual.

Product Usage Instructions

1. Setup

1. Unpack the Brother P-touch 65/P-touch HOME&HOBBY/P-touch One from the package.
2. Place the machine on a stable and flat surface.
3. Connect the power supply to the machine.
4. Install the tape cassette by opening the tape compartment and inserting the cassette until it clicks into place.

2. Keyboard and Display

The machine is equipped with a rubber key pad consisting of alphanumeric and symbol keys. There are also function keys, including an On/Off key. The liquid crystal display (LCD) shows information such as selected characters and settings.

3. Printing

1. Turn on the machine by pressing the On/Off key.
2. Use the alphanumeric and symbol keys to enter the desired text.
3. Adjust the field-of-view angle if necessary.
4. Select the desired character size.
5. Press the Print button to print the text on the tape.

4. Tape Cutter

To cut the printed tape, manually operate the cutter lever located on the machine. If the cutter unit becomes dull or damaged, it can be replaced by the user.

FAQs

• Q: Can I use tapes of different colors with this machine?

  • A: Yes, the Brother P-touch 65/P-touch HOME&HOBBY/P-touch
    One supports tapes of different colors. The tape cassette packed
    with the machine includes a white tape, but you can purchase tapes
    of other colors separately.

• Q: How do I replace the tape cassette?

  • A: To replace the tape cassette, open the tape compartment,
    remove the current cassette, and insert a new cassette until it
    clicks into place.

SERVICE MANUAL
MODEL: P-touch 65 P-touch HOME&HOBBY P-touch One
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SERVICE MANUAL
MODEL:P-touch 65 P-touch HOME&HOBBY P-touch One
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© Copyright 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.
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PREFACE

This publication is a service manual covering the specifications, theory of operation, disassembly/reassembly procedure, and troubleshooting of the Brother P-touch 65/Ptouch HOME&HOBBY/P-touch One. It is intended for service personnel and other concerned persons to accurately and quickly provide after- sale service for our P-touch 65/P-touch HOME&HOBBY/P-touch One.
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 appendices.

CHAPTER I CHAPTER II CHAPTER III CHAPTER IV APPENDICES

SPECIFICATIONS MECHANISMS ELECTRONICS TROUBLESHOOTING CIRCUIT DIAGRAMS

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Chapter I.

SPECIFICATIONS

1.1 MECHANICAL SPECIFICATIONS
1.1.1 External Appearance

Figure 1.1-1 External Appearance

(1) Dimensions (W x D x H) 153 mm x 105 mm x 63 mm

(2) Weight Machine proper In package

Approx. 310 g 410 g or less (including dry cells and a tape cassette)

1.1.2 Keyboard
(1) Entry system (2) Number of alphanumeric and symbol keys (3) Number of function keys (4) Key arrangement

Rubber key pad 31 12 (including On/Off key) See Figure 1.1-2.

1.1.3

Display (1) Display type (2) Number of columns

(3) Number of indicators (4) Character size (5) Field-of-view angle adjustment

Liquid crystal display (LCD) 8 columns x 1 rows (See Figure 1.1-2.) 11 (See Figure 1.1-2.) 5 dots wide by 7 dots high Fixed by a resistor

I – 1

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1.1.4 Printing Mechanism (1) Print system

(2) Print speed
(3) Print head Type Heat generator

Size of heating element

(4) Character size (dots)

Standard (Small) size (1)

Double width

(W2)

Double height

(H2)

Large size

(4)

Direct thermal printing (Fixed print head and tape feeding mechanism)
7.5 mm/second (Typical)
Thermal print head Consists of 64 heating elements vertically aligned 0.136 mm wide by 0.106 mm high
Height x Width 32 x 20 32 x 40 64 x 20 64 x 40

1.1.5 Tape Cassette (1) Cassette (2) Tape type
(3) Tape size
(4) Tape cassette packed with the machine

Cartridge type

Direct thermal print tape (Metal deposit layer on substrate)

Width: 9, 12 mm Length: 8 m

Character color: Black

Tape color:

White

Tape width: 12 mm or 9 mm (EU)

Tape length: 4 m

1.1.6 Tape Cutter (1) Tape cutting (2) Cutter unit

Manual cutting with the cutter lever User-replaceable

I – 2
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Figure 1.1-2 Key Arrangement I – 3
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1.2 ELECTRONICS SPECIFICATIONS

1.2.1 Character Generator (1) Internal characters
(2) Internal fonts (3) Print buffer capacity (4) Phrase memory capacity

U.K./French/Belgium 180

German

188

U.S./Canada

178

HELSINKI

55 characters

None

1.2.2 Power Supply

(1) Power supply

Driven by 6 dry cells
Optional AC line adapter (7 VDC, 1.2A) available (Europe only)

(2) Battery type

Alkaline dry cells (AM3/LR6)

(3) Service life of batteries (4) Automatic powering-off

Will last through one tape cassette, and then some (at room temperature and normal humidity).
Yes (If the machine remains unused for approx. 5 minutes, it automatically powers itself off.)

(5) Low battery indication

1. If the voltage level drops below approx. 5.7V, the CPU displays the “BATTERY” message to warn you of low battery after completion of printing.
2. If it drops further below approx. 5.2V, the CPU immediately shuts down the power.
3. Adapters with an output of 10.8 V or greater are designated as “high- voltage” adapters and cannot be used for this machine. If this machine detects any high-voltage adapter plugged in, it will power itself off.

I – 4
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Chapter II.

MECHANISMS

2.1 THEORY OF OPERATION
2.1.1 Print Mechanism n Structure of Thermal Head This machine uses direct thermal printing. The thermal print head has a heat generator consisting of 64 heating elements which are vertically aligned as shown in Figure 2.1-1. Each heating element is 0.136 mm wide by 0.106 mm high.
0.106 mm
6.784 mm
0.136 mm
Figure 2.1-1 Heat Generator of Thermal Head
n Printing Process When the cylindrical rubber platen is pressed against the thermal print head with the thermal tape sandwiched inbetween, the CPU applies electric power to the selected ones of those 64 heating elements. The selected heating element(s) generates heat that dissolves the metal deposit layer of the thermal tape so as to reveal the substrate layer, producing a dot on the tape. The tape is advanced and the next heating cycle is repeated, thus forming a character on the tape.
n Character Formation While the drive motor (DC motor) feeds the tape by 0.106 mm for 13.8 ms, the thermal head generates heat once. The feed amount of 0.106 mm is smaller than the width (0.136 mm) of the heating elements so that the heat generated at one heating cycle will overlap with the next heating cycle. This forms a character having no gap between adjacent printed dots.
II – 1
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2.1.2 Platen Setting & Retracting Mechanism This mechanism consists of the roller holder ASSY and the roller holder setting lever (wedged lever) provided on the inside of the cassette cover. The roller holder ASSY supports the platen so that the platen can move perpendicularly to the thermal head and rotate freely. Closing the cassette cover fits its roller holder setting lever into the slot between the roller holder ASSY and the chassis’s bent section. This pivots the roller holder ASSY around the shaft provided on the chassis so as to press the roller holder ASSY against the thermal head. The platen is pressed perpendicularly against the thermal head with the tape sandwiched inbetween under a uniform load by the platen spring. At the same time, the platen gear becomes engaged with the drive gear of the gear train on the chassis (see Figure 2.1-3). Opening the cassette cover pulls out its roller holder setting lever so that the roller holder spring retracts the roller holder ASSY from the thermal head, providing you with enough space to replace the tape cassette.
Figure 2.1-2 Platen Setting & Retracting Mechanism II – 2
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2.1.3 Tape Feed Mechanism This mechanism consists of a DC motor, gear train and roller holder ASSY. When you load a tape cassette and close the cassette cover, the platen and the thermal head sandwich the tape inbetween and the platen gear becomes engaged with the gear train, as described in Subsection 2.1.2. As the DC motor rotates, the rotation is transmitted via the gear train to the platen gear. Accordingly, the sandwiched tape will be advanced.
Figure 2.1-3 Tape Feed Mechanism
II – 3
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2.1.4 Tape Cutter Mechanism The cutter mechanism consists of a cutter lever and a cutter unit in which a blade is retracted by a spring. Pressing the cutter lever pushes out the blade from the cutter unit to press the printed tape against the cutter board of the tape cassette, cutting the printed tape coming through the cutter unit and the cutter board. When the cassette cover is opened and no tape cassette is loaded, the cutter safety mechanism works to lock the cutter lever as described in Subsection 2.1.5.
Figure 2.1-4 Tape Cutter Mechanism
II – 4
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2.1.5 Cutter Safety Lock Mechanism When the cassette cover is opened and no tape cassette is loaded, the roller holder ASSY is retracted from the thermal head with the roller holder spring (as described in Subsection 2.1.2). In this retracted position, the cutter lever stopper of the roller holder ASSY blocks the end of the cutter lever, preventing the cutter blade from coming out of the cutter unit for safety, as shown below. Closing the cassette cover or loading a tape cassette releases the cutter safety lock mechanism as follows. Closing the cassette cover pivots the roller holder ASSY towards the thermal head so that the cutter lever stopper does not interfere with the cutter lever. When a tape cassette is loaded, its outer edge pushes the tab of the roller holder ASSY to pivot the roller holder ASSY towards the thermal head so that the cutter lever stopper does not interfere with the cutter lever.
Figure 2.1-5 Cutter Safety Lock Mechanism
Figure 2.1-6 Releasing the Cutter Safety Lock Mechanism II – 5
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2.2 DISASSEMBLY & REASSEMBLY
n Safety Precautions
(1) You should carry out disassembly & reassembly jobs on an anti-static sheet grounded correctly. Otherwise, the LSI and other electronic devices will 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.
(3) When using soldering irons and other heat-generating tools, take care not to damage the resin parts such as wires, PCBs, and covers.
(4) Be careful not to lose screws, washers, or other parts removed for parts replacement.
(5) Tighten screws to the torque values listed below.

n Tightening Torque List

Location

Screw type

Bottom cover Chassis ASSY Chassis ASSY (for motor) Thermal head ASSY Sub PCB* Main PCB

Taptite, bind B M2.6 x 8 Taptite, bind B M2.6 x 4 Screw, pan M1.7 x 2.5 Screw, cup M2.6 x 4 Taptite, bind B M2.6 x 4 Taptite, bind B M2.6 x 4

Q’ty Tightening torque
4 0.39 ±0.10 N·m (4 ±1 kgf·cm) 3 0.196 ±0.049 N·m (2 ±0.5 kgf·cm) 2 0.10 to 0.196 N·m (1 to 2 kgf·cm) 1 0.49 ±0.196 N·m (5 ±2 kgf·cm) 2 0.196 ±0.049 N·m (2 ±0.5 kgf·cm ) 2 0.196 ±0.049 N·m (2 ±0.5 kgf·cm )
*Provided on the European version

II – 6
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2.2.1 Disassembly Procedure [ 1 ] Removing the Cassette Cover, Dry Cells, Tape Cassette, and Cutter Unit (1) Turn the machine upside down. (2) Press section “A” of the cassette cover to release the latch, and then remove the cassette cover.
Figure 2.2-1 Removing the Cassette Cover (3) Remove the six dry cells, tape cassette, and cutter unit. For easier removal of the
tap cassette, lift up the front edge and then take it out.
Figure 2.2-2 Removing the Dry Cells, Tape Cassette and Cutter Unit II – 7
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[ 2 ] Removing the Chassis ASSY (1) Remove the four screws from the bottom cover.
Figure 2.2-3 Unscrewing the Bottom Cover (2) Slightly open the bottom cover and disconnect the head flat cable from the main
PCB.
Figure 2.2-4 Disconnecting the Head Flat Cable II – 8
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(3) Remove the three screws from the chassis ASSY. The FG wire also comes off. (4) Unsolder the motor lead wires from the main PCB.
Figure 2.2-5 Unsoldering the Motor Lead Wires and Removing the Chassis ASSY (5) Lift the chassis ASSY up and out of the bottom cover. The cutter lever also comes
off.
II – 9
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n Disassembling the Chassis ASSY When handling the thermal head ASSY, do not touch the thermal head by hand. Otherwise, it may be damaged due to the electricity charged in your body. (1) Remove the screw from the thermal head ASSY and take off the ASSY. (2) Remove the retaining ring from the shaft of the chassis ASSY. (3) Pull up the roller holder ASSY together with the spring. (4) Remove the two screws from the chassis ASSY and take off the DC motor ASSY.
Figure 2.2-6 Disassembling the Chassis ASSY II – 10
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[ 3 ] Removing the Sub PCB, Main PCB, and Rubber Key Pad Provided on the European version.
(1) European version: Remove the two screws from the sub PCB.
Figure 2.2-7 Taking out the Sub PCB (2) Remove the two screws from the main PCB. (3) Slightly slide the main PCB to the front, press the latches provided on the body
cover outwards, and then take out the LCD by gently pulling out the main PCB and LCD flat cable. (4) Take out the rubber key pad.
Figure 2.2-8 Taking out the Main PCB and Rubber Key Pad from the Body Cover II – 11
r [ 4 ] Taking out the – and + Terminal ASSYs 65, +/- Terminals P1 and P3, and Battery Terminals P2 (1) Unlatch the locking pawl of the – terminal ASSY 65 with the tip of the flat screwdriver and from the bottom push the terminal ASSY up and out of the bottom cover. (2) In the same manner as in step (1), remove the +/- terminals P1 and P3. (3) Turn the bottom cover upside down, unlatch the locking pawl of the + terminal ASSY 65 with the flat screwdriver, and push the terminal out of the bottom cover.
Figure 2.2-9 Taking out the – and + Terminal ASSYs 65 and +/- Terminals P1 and P3
II – 12
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(4) As shown below, press the locking pawl of each battery terminal P2 with a flat screwdriver and push it out from the bottom cover.
Figure 2.2-10 Taking out the Battery Terminals P2
II – 13
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[ 5 ] Unsoldering the + and – Terminal ASSYs 65 and Sub PCB Leads from the Main PCB Provided on the European version.
If it is necessary to separate the + and – terminal ASSY 65 or sub PCB leads from the main PCB, unsolder them with a soldering iron. (1) Unsolder the + and – terminal ASSYs 65 from the main PCB. (2) European version: To remove the sub PCB, unsolder the four lead wires from the
main PCB.
Figure 2.2-11 Unsoldering the + and – Terminal ASSYs 65 and Sub PCB Leads*
II – 14
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2.2.2 Reassembly Procedure [ 1 ] Soldering the Sub PCB Leads and the + and – Terminal ASSYs 65 onto the Main PCB
Provided on the European version. (1) European version: Solder the four lead wires of the sub PCB to the main PCB
according to the wire ID colors as shown below. (2) Solder the + and – terminal ASSYs 65 according to the wire ID colors as shown
below. European version
US version
Figure 2.2-12 Soldering the Sub PCB Leads and the + and – Terminal ASSYs 65 II – 15
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[ 2 ] Setting the Battery Terminals P2, +/- Terminals P3 and P1, and + and – Terminal ASSYs 65 (1) Place the bottom cover upside down. (2) Set three battery terminals P2 to the bottom cover until they snap into place, as shown below.
Figure 2.2-13 Setting the Battery Terminals P2 (3) Turn the bottom cover rightside up. (4) Snap the + terminal ASSY 65 into the bottom cover. (5) Snap the +/- terminals P3 and P1 into the bottom cover. (6) Snap the – terminal ASSY 65 into place.
Figure 2.2-14 Setting the +/- Terminals P3 and P1 and the + and – Terminal ASSYs 65 II – 16
r [ 3 ] Installing the Rubber Key Pad, Main PCB, and Sub PCB Provided on the European version.
(1) Place the body cover upside down. (2) Put the rubber key pad in the body cover.
NOTE: Before setting the main PCB, check that there is no foreign material or dust on the key contacts of the main PCB. (3) While pressing the latches on the body cover outwards, slide the LCD as illustrated below. Make sure that the LCD is fully fitted in the body cover. (4) Secure the main PCB to the body cover with two screws.
Figure 2.2-15 Reinstalling the Rubber Key Pad and Main PCB (5) European version: Secure the sub PCB with two screws.
Figure 2.2-16 Securing the Sub PCB II – 17
r [ 4 ] Installing the Chassis ASSY (1) If the chassis ASSY has been disassembled, assemble the components, referring to page II-20. (2) As shown in Figure 2.2-20, fit the cutter lever onto the shaft on the chassis ASSY. (3) Put the chassis ASSY with the cutter lever back into the bottom cover. (4) Secure the chassis ASSY with three screws. One of those screws should also secure the FG wire. NOTE: Check that the FG wire is secured to the correct position, referring to the illustration given below. (5) Solder the motor lead wires to the main PCB as shown below. NOTE: Check the wire ID colors, then solder the black and red wires to the (+) and (-) points, respectively.
Figure 2.2-17 Installing the Chassis ASSY and Soldering the Motor Lead Wires
II – 18
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(6) Route the wires of the + and – terminal ASSYs 65 along the four ribs provided on the bottom cover as illustrated below.
(7) Connect the head flat cable to the main PCB and close the bottom cover.
Figure 2.2-18 Routing the + and – Terminal ASSYs 65 and Connecting the Head Flat Cable (8) Secure the bottom cover to the body cover with four screws, taking care not to pinch the wires between the body cover and bottom cover.
Figure 2.2-19 Securing the Bottom Cover to the Body Cover II – 19
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n Assembling the Components of the Chassis ASSY (1) Secure the DC motor ASSY to the chassis with two screws so that the motor lead wires face as shown below. (2) Set the roller holder spring onto the roller holder ASSY so that its straight end is fitted into section “A” on the ASSY, then install them to the chassis and secure the ASSY with the retaining ring. (3) As shown below, turn the bent end of the roller holder spring with a flat screwdriver and fit it into an oval hole provided in the chassis. Then secure the thermal head ASSY with a screw.
Figure 2.2-20 Assembling the Components of the Chassis ASSY II – 20
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[ 5 ] Setting the Cutter Unit, Tape Cassette, Dry Cells, and Cassette Cover (1) Set the cutter unit into place. (2) Set a tape cassette. (3) Load dry cells. (4) Fit hooks “X” of the cassette cover and then snap the cover into place.
Figure 2.2-21 Setting the Cutter Unit, Tape Cassette, Dry Cells, and Cassette Cover
II – 21
r [ 6 ] Demonstration Print and Final Check (1) Power on the machine. (2) While holding down the Code key, press the key (BS key in U.S. and Australian versions) to cancel data previously entered. (3) Power off the machine. (4) While holding down the Code and D keys, press and release the key (On/Off key in the U.S. and Australian versions), then release the Code and D keys. The demonstration print will start. (5) During the demonstration print, check that the machine feeds the tape and prints data correctly. Then, cut the tape. (6) Open the cassette cover to check that it retracts the roller holder ASSY from the thermal head. Close the cassette cover to check that it presses the roller holder ASSY against the thermal head. (7) Check that pressing the keys causes correct operation. (8) Check that the key (On/Off key in the U.S. and Australian versions) operates correctly. (9) Replace the dry cells with new ones, and then power on the machine. (10) Check the tape feeding length according to the steps below. 1) While holding down the Code key, press the Space key to feed tape. 2) Push the cutter lever to cut the tape. 3) Enter arbitrary characters. 4) While holding down the Code key, press the H key. After the print preview, the tape length will appear. Make a note of the length. 5) Press the Print key to print. 6) After completion of printing, cut the printed tape. 7) Check that the cut tape is the length recorded in step 4) ±5% long. 8) If the cut tape is out of the specified range, insert the tip of a screwdriver through the hole provided in the bottom cover and rotate the trimmer (VR1) on the main PCB to adjust the tape feeding length. Rotating the VR1 clockwise will shorten the tape feeding length; rotating it counterclockwise will lengthen it.
If any problem is found, go to the troubleshooting in Chapter IV.
Figure 2.2-22 Adjusting the Trimmer (VR1) on the Main PCB II – 22
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Chapter III.

ELECTRONICS

3.1 OUTLINE OF CONTROL ELECTRONICS
Figure 3.1-1 shows a block diagram of the control electronics of this machine. The control electronics consists of a main PCB, LCD, motor, thermal print head assembly, and sub PCB*.

• Provided on the European version. n Main PCB This manages all the components including an LCD, motor, key pad, and thermal print head. n Motor The DC motor is a power source to advance tape. It operates on 9V (unstabilized). n Thermal Print Head This is a thick-film thermal print head which integrates a heat generator (consisting of 64 heating elements vertically aligned) and driver circuitry. When selectively energized by 9V (unstabilized), those heating elements produce characters. n LCD The LCD is 8 characters wide by one row and it has also 11 guidance indicators. n Sub PCB This allows you to use an AC adapter.
  Figure 3.1-1 Configuration of the Electronic Part III – 1
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3.2 MAIN PCB
3.2.1 Block Diagram Figure 3.2-1 shows a block diagram of the main PCB. The main PCB consists of the following: (1) CPU (including a ROM and RAM) (2) LCD controller (3) Key contacts matrix and solder points (destination switching circuit) (4) Power ON/OFF circuit (5) Motor drive circuit (6) Thermal head drive circuit (7) Voltage detection circuit (8) Oscillation circuit (9) Power supply circuit

• Provided for the European version. Figure 3.2-1 Main PCB Block Diagram
  III – 2
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3.2.2 CPU The CPU (#1: MN101C30A) is an 8-bit microprocessor produced by CMOS silicon gate process, which integrates a 32-kilobyte ROM and a 1.5-kilobyte RAM.
3.2.3 LCD Controller LCDC (#3: SPLC 780A2) drives the LCD in 1/8 duty and 1/4 bias levels.
Figure 3.2-2 CPU and LCD Controller III – 3
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3.2.4 Key Contacts Matrix [ 1 ] Key contacts matrix On the main PCB is a key contacts matrix that is a set of carbon-printed 43 key contact patterns. Each contact pattern has a pair of electrodes. The rubber key pad is made of high- impedance silicon rubber. As shown in Figure 3.2-3, each key on the rubber key pad consists of a key top, rubber spring, and conductive paint which functions as a switching element. If a particular key is pressed, the conductive paint of the key short-circuits the paired electrodes carbon-printed on the main PCB. Figure 3.2-4 shows a key scan timing scheme and scanning pulse outputs. Ports P70 through P75 on the CPU issue a group of key scanning pulses. Every scanning pulse is Low active for 200 µs and is in high impedance while inactive. Ports P60 through P67 act as input ports which receive key status. The CPU scans the key contacts matrix every 10 ms. If the CPU reads the same data on an input port two successive times, it interprets the state as the key being pressed; if the CPU reads the same data six successive times, it interprets the state as the key being released. The input mode of this keying system is 2-key roll-over and 3-key lockout.
Figure 3.2-3 Detailed Diagram of Keyboard
III – 4
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Figure 3.2-4 Key Scan Timing Scheme and Scanning Pulse Outputs
III – 5
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[ 2 ] Solder points
Figure 3.2-5 shows a circuit diagram relating to the keyboard and solder points. Solder points 1 through 3 customize the machine for the destination (shipping country) .

20 U.S.A./Canada

HHH

10 Germany

HHH

02 Belgium

HLH

01 France

L HH

00 England

HHH

Spec. No.

Destination

123 Solder Points

H: Solder point opened L: Solder point closed

Solder points A and C are reserved for the future use for the thermal head ranking.
The CPU reads the solder point status once in the powering-on sequence to recognize the customization.

Figure 3.2-5 Keyboard and Solder Points III – 6
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3.2.5 Power ON/OFF Key and Reset Circuit [ 1 ] Power ON/OFF circuit Figure 3.2-6 shows a circuit diagram of the power ON/OFF key. The CPU processes the ON/OFF key state in a sequence quite different from other keys although the ON/OFF key is on the same key pad.
Figure 3.2-6 ON/OFF Key
– The ON/OFF key is held down, during which the CPU is inactive. – Reset operation by the reset circuit
In the powering-on sequence: The reset signal is canceled and the program starts. In the powering-off sequence: The reset signal is canceled and the program stops.
Figure 3.2-7 Powering-on/-off sequence III – 7
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[ 2 ] Automatic powering-off circuit If you power off the machine with the ON/OFF key or you make no key entry for approx. 5 minutes, the oscillation stops so that the CPU enters the sleep mode. To cancel the sleep mode and resume the normal operation mode, press the ON/OFF key.
III – 8
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3.2.6 Motor Drive Circuit Figure 3.2-8 shows the motor drive circuit of the DC motor which feeds tape. Through P10, the CPU produces a start/stop control signal to the motor drive circuit. Figure 3.2-9 shows the part of motor waveforms. #2 (BA6220) is an electronic governor IC and controls to keep the rotation speed of the motor constant even if the power source voltage (VBT) varies.
Figure 3.2-8 Motor Drive Circuit
Figure 3.2-9 Part of Motor Waveforms III – 9
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3.2.7 Thermal Head Drive Circuit Figure 3.2-10 shows the thermal head drive circuit. The print head has an integrated heat generator (consisting of 64 heating elements vertically aligned in 240 dpi) and a built-in driver IC. Synchronizing with the clock on P02, the CPU outputs print data on P00 in the serial form. Upon receipt of P01 signal issued by the CPU, the thermal head control circuit latches the print data and drivers the heating elements of the thermal head according to the signal issued from P03. Figure 3.2-11 illustrates a timing chart of the thermal head drive. Capacitor C10 works as a thermal head overheat protector. It cuts off the P03 signal to shut down invalid drive current if the signal sticks to the low level due to any malfunctions of the programs or the CPU. Since thermal heads are very sensitive to heat and the head drive source is not stabilized, the CPU determines the ON-time length of the P03 signal while monitoring the head drive source voltage (refer to Subsection 3.2.8).
Figure 3.2-10 Thermal Head Drive Circuit
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Figure 3.2-11 Timing Chart for Thermal Head Drive
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3.2.8 Voltage Detection Circuit Figure 3.2-12 shows the voltage detection circuit which is composed of a resistor network. Voltage detection circuit This circuit, which is composed of divider resistors R9 and R10, steps down the power source VAD fed from dry cells or the AC adapter and feeds the output to the A/D input port PA1 on the CPU. According to the drive source voltage, the CPU determines the optimum head drive power. During non-printing: If the voltage level of the VAD drops below approx. 6.8V, the CPU immediately shuts down the power. Adapters with an output of 10.8 V or greater are designated as “high-voltage” adapters and cannot be used for this machine. If this machine detects any high-voltage adapter plugged in, it will power itself off. During printing: If it drops even more below approx. 5.7V, the CPU displays the “BATTERY” message to warn you of a low battery after completion of printing. If it drops below approx. 5.2V, the CPU immediately shuts down the power.
Figure 3.2-12 Voltage Detection Circuit
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3.2.9 Oscillation Circuit Figure 3.2-13 shows the oscillation circuit. This circuit contains an oscillator and generates 8 MHz frequency which acts as the CPU basic clock. The CPU divides this into half (4 MHz) to synchronize its internal operations.
Figure 3.2-13 Oscillation Circuit
III – 13
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3.2.10 Power Supply Circuit Figure 3.2-14 shows the power supply circuit. The 3-terminal regulator RH5RL50A stabilizes the battery output, producing the +5BV power source (5±0.125V).
Figure 3.2-14 Power Supply Circuit
III – 14
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3.3 SUB PCB
3.3.1 Sub PCB The sub PCB is provided for the European version and allows you to connect an AC adapter.
Figure 3.3-1 Sub PCB Circuit
III – 15
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Chapter IV.

TROUBLESHOOTING

4.1 TROUBLESHOOTING
This section gives the service personnel some of the troubleshooting procedures to be followed if an error or malfunction occurs with this machine. It is impossible to anticipate all of the possible troubles which may occur in future and determine the troubleshooting procedures, so this chapter covers some sample troubles. However, those samples will help service personnel pinpoint and repair other defective elements if he/she analyzes and examines them well.
4.1.1 Precautions Be sure to observe the following precautions to prevent the secondary problems from happening during troubleshooting: (1) Get a good idea of what the trouble is. Whenever more than 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 with either a set of batteries or the AC line adapter, make sure that its output voltage level is 8 to 10V under no load. (3) When using a circuit tester for testing the conductivity, remove all of the batteries (and disconnect the AC line adapter) from this machine. (4) To repair an error which occurred in the thermal print head and its related sections, disconnect the thermal head cable until repairs are finished.
4.1.2 After Repairing After repairing the defective section, be sure to check again to see if the repaired section works correctly. Also make a note of the troubleshooting procedure so that it will be handy should problems occur in the future.
IV – 1
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4.1.3 Troubleshooting Flows [ 1 ] Tape feeding failure
IV – 2
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IV – 3
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IV – 4
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[ 2 ] Printing failure
IV – 5
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IV – 6
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IV – 7
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[ 3 ] Powering failure (Nothing appears on the LCD.)
IV – 8
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IV – 9
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[ 4 ] No key entry possible
IV – 10
r [ 5 ] Abnormal LCD indication
IV – 11
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APPENDICES
Circuit Diagrams A: Main PCB B: Sub PCB (for P-touch 65 and P-touch One only)
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Appendix A. Main PCB

1

2

3

4

POWER SUPPLY US Version

A

POW ER +

–

POW ER –

BA TT ERY

European (UK,FR,GE,BE) Version
+ –
POW ER –

B A TT ERY

SUB PCB

VBT AC

POW ER + AC SEN

VAD

DB4 DB5 DB6 DB7

R1 0 5 . 6 K ( 1 %)

VBT

R9 4 . 3 K ( 1 %)

C9 102

NC NC NC NC NC NC

F1

B

POW ER +

2

3

I N OUT

GN D

+ 5 BV

0V

C8

1 C5

C7

104

47

10V

6. 3V

POW ER –

0V

1

NC

PA3

2

AC SEN

PA4

3

(C 1 1) ***

NC

PA5

4

NC

PA6

5

1

NC

PA7

FG

0V

VCC

6 VREF +

MN 1 0 1 C 3 0 A

7

+5 BV

VDD

8

C4

OS C2

9

104

OS C1

10

0V

VSS

11

XI

XT1

12

P2 ( HEAD)

CST8 . 0 M

NC

XO

13

GND

MMOD 14

C

COM 1

VBT

(R 2 3 )

P0 0 15

DAT A 2

(R 2 4)

P0 1 16

CL OCK 3

(R 2 5)

P0 2

L AT CH 4

VDD 5 GND 6 GND 7

0V

C1 2

R1 1

104

1M

VCC

(C ) ***
0V

S T ROB E 8 VDD 9 COM 1 0

V CC VBT

R1 3 470

C1 0 105

17 P0 3
18 P0 4
19 P0 5
20 P0 6
21 – RST
22 P1 0
23 P1 1
24 P1 2
25 P1 3
26 P1 4
27 P 2 0 / I RQ0
28 P2 1
29 P2 2
30 P2 3
31 P2 4
32 P5 0

64 PA2
63 PA1 / AN1
62 PA0 / AN0
61 VREF –
60 P8 0
59 P8 1
58 P8 2
57 P8 3
56 P8 4
55 P8 5
54 P8 6
53 P8 7
52 P7 7
51 P7 6
50 P7 5
49 P7 4

K O7 K O6 K O5 K O4

P7 3 P7 2 P7 1 P7 0 P6 7 P6 6 P6 5 P6 4 P6 3 P6 2 P6 1 P6 0 P5 4 P5 3 P5 2 P5 1

48 47 46 45 44 43 42 41 40 39 38 37 36
NC 35
NC 34
NC 33
NC

K O3 K O2 K O1 K O0 KI 7 KI 6 KI 5 KI 4 KI 3 KI 2 KI 1 KI 0

NC NC NC NC NC NC NC NC

5

6

C1 3 104 0V

VCC

L CDE L CDRW L CDRS

36 RS
37 R/ W
38 E VCC
33 GN D
23

DB4 DB5 DB6 DB7

26

V1

V1

27

V2

V2

28

V3

V3

29

V4

V4

30

V5

V5

31

NC

CL 1

32

NC

CL 2

34

NC

M

35

NC

D

39

NC

DB 0

40

NC

DB 1

41

NC

DB 2

42

NC

DB 3

43

DB 4

44

DB 5

45

DB 6

46

DB 7

24

OS C1

C OM1 C OM2 C OM3 C OM4 C OM5 C OM6 C OM7 C OM8

25 OS C2
47 C OM1
48 C OM2
49 C OM3
50 C OM4
51 C OM5
52 C OM6
53 C OM7
54 C OM8
55 C OM9
56 C OM1 0
57 C OM1 1
58 C OM1 2
59 C OM1 3
60 C OM1 4
61 C OM1 5
62 C OM1 6

3 L CDC SPL C7 8 0 A2

22 S EG1
21 S EG2
20 S EG3
19 S EG4
18 S EG5
17 S EG6
16 S EG7
15 S EG8
14 S EG9
13 S EG1 0
12 S EG1 1
11 S EG1 2
10 S EG1 3
9 S EG1 4
8 S EG1 5
7 S EG1 6
6 S EG1 7
5 S EG1 8
4 S EG1 9
3 S EG2 0
2 S EG2 1
1 S EG2 2
80 S EG2 3
79 S EG2 4
78 S EG2 5
77 S EG2 6
76 S EG2 7
75 S EG2 8
74 S EG2 9
73 S EG3 0
72 S EG3 1
71 S EG3 2
70 S EG3 3
69 S EG3 4
68 S EG3 5
67 S EG3 6
66 S EG3 7
65 S EG3 8
64 S EG3 9
63 S EG4 0

S E G1 S E G2 S E G3 S E G4 S E G5 S E G6 S E G7 S E G8 S E G9 S E G1 0 S E G1 1 S E G1 2 S E G1 3 S E G1 4 S E G1 5 S E G1 6 S E G1 7 S E G1 8 S E G1 9 S E G2 0 S E G2 1 S E G2 2 S E G2 3 S E G2 4 S E G2 5 S E G2 6 S E G2 7 S E G2 8 S E G2 9 S E G3 0 S E G3 1 S E G3 2 S E G3 3 S E G3 4 S E G3 5 S E G3 6 S E G3 7 S E G3 8 S E G3 9 S E G4 0

L CDRS L CDRW L CDE

VBT
D

+ 5 BV

Q4 DTA1 4 3 ZUA

47K

P 1 ( MOT OR )

–

1

Q6 B1 4 2 7

R 1 2V A D 10K
R7 3. 3K

E

2

R2 0

V R1 200

R2 2 390

(R 2 1) ***

D2 RB5 2 1 S- 3 0

8

4

5

1

23

6

7

2 BA6 2 2 0

KI 0 KI 1 KI 2 KI 3 KI 4 KI 5 KI 6 KI 7

F

47K 4. 7K

4. 7K

Q5 DT C1 1 4 YUA

Q1 DT A 1 4 3 Z UA VCC

47K

10K

0V

1A 2 3C

A’

/ Cod e

Pr i nt

Z Q W Caps

Sym.

ES RD

X Num. C M Space

TF V

P

Y G B O Code

UH N. L

IJ -, K

KI 0 KI 1 KI 2 KI 3 KI 4 KI 5 KI 6 KI 7

1A 2 3C

Q’ WA ES RD TF ZG UH IJ

/ CODE

DRUCK

Y CAPS

S YM

X NUM .

C LEER ,

V

P

B O CODE

1. L

M- K

+ 5 BV
220K
KS2 ON/ OF F
Keyboard
0V

KI 0 KI 1 KI 2 KI 3 KI 4 KI 5 KI 6 KI 7

1A 2 3C

US
For Head Ranking

For Destination

Keyboard

KI 0

1A

Q&

‘

Co d e

Pr i n t

KI 1

2

WA

Z Ca p s

S y m.

KI 2 KI 3

3C

ES RD

X N u m. BS

C Spac e

,

KI 4

TF V

P

KI 5

Y G B O C o d e

KI 6

UH N . L

KI 7

I J M” K

K O6 K O7 K O0 K O1 K O2 K0 3 K O4 K O5

A’

/ Code

Impr

Z Q W Ma j

S y m.

ES RD

X Nu n. C M Espace

TF V

P

Y G B O CODE

UH N. L

IJ-, K

KI 0 KI 1 KI 2 KI 3 KI 4 KI 5 KI 6 KI 7

K O6 K O7 K O0 K O1 K O2 K0 3 K O4 K O5

K O6 K O7 K O0 K O1 K O2 K0 3 K O4 K O5 K O6 K O7 K O0 K O1 K O2 K0 3 K O4 K O5

1

2

3

4

5

6

7

8

A

L CD UT S – G5 3 5 A Y

SEG4 0

1

SEG3 9

2

SEG3 8

3

SEG3 7

4

SEG3 6

5

SEG3 5

6

SEG3 4

7

SEG3 3

8

SEG3 2

9

SEG3 1

10

SEG3 0

11

SEG2 9

12

B

SEG2 8

13

SEG2 7

14

SEG2 6

15

SEG2 5

16

SEG2 4

17

SEG2 3

18

SEG2 2

19

SEG2 1

20

SEG2 0

21

SEG1 9

22

SEG1 8

23

SEG1 7

24

SEG1 6

25

SEG1 5

26

SEG1 4

27

SEG1 3

28

SEG1 2

29

SEG1 1

30

SEG1 0

31

C

S E G9

32

S E G8

33

S E G7

34

S E G6

35

S E G5

36

S E G4

37

S E G3

38

S E G2

39

S E G1

40

D

C OM8

41

C OM7

42

C OM6

43

C OM5

44

C OM4

45

C OM3

46

C OM2

47

C OM1

48

RA 1 YA1 0 4 4 0 5 0
Vc c V1

V2 V3

V4

1A

Q’

/ Cod e

V5 Pr i n t

2

W A Z Caps

S y m.

3C

E S X N um.

E

R D C Space ,

TF V

P

Y G B O C ode

UH N. L

I J M- K

K O6 K O7 K O0 K O1 K O2 K0 3 K O4 K O5

F

NAME

MAIN PCB CIRCUIT DIAGRAM PT65

CODE

LA3765000

7

8

r

Appendix B. Sub PCB

3 R0 A3 R0 R8 C

DC J ACK
HEC 0 4 7 1 – 0 1 – 6 3 0

ERB8 3 – 0 0 4

R1

1 SS1 3 3

C1 104

+ VBT
0V AC SENS

r

NAME CODE

SUB PCB CIRCUIT DIAGRAM PT65
LA3766000

r

May, 2000 8V2008BE0 Printed in Japan

References

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