Table Of Contents - Brother PT-H100 Service Manual

CHAPTER I SPECIFICATIONS
1.1 Mechanical Specifications .........................................................................................................I-1
1.1.1 External Appearance ...........................................................................................................I-1
1.1.2 Keyboard .............................................................................................................................I-1
1.1.3 Display.................................................................................................................................I-1
1.1.4 Printing Mechanism.............................................................................................................I-2
1.1.5 Tape Cassette.......................................................................................................................I-2
1.1.6 Tape Cutter ..........................................................................................................................I-2
1.2 Electronics Specifications..........................................................................................................I-4
1.2.1 Character Generator.............................................................................................................I-4
1.2.2 Power Supply.......................................................................................................................I-4
1.3 Key Commands for Special Functions ......................................................................................I-5
1.3.1 Initializing............................................................................................................................I-5
1.3.2 Inspection Mode ..................................................................................................................I-5
CHAPTER II THEORY OF OPERATION
2.1 Outline of Mechanisms............................................................................................................ II-1
2.1.1 Print Mechanism................................................................................................................ II-1
2.1.2 Roller Holder ASSY Setting & Retracting Mechanism .................................................... II-2
2.1.3 Cassette Sensor Mechanism .............................................................................................. II-4
2.1.4 Tape & Ribbon Feed Mechanism...................................................................................... II-6
2.1.5 Tape Cutter Mechanism .................................................................................................... II-8
2.1.6 Cutter Safety Lock Mechanism ......................................................................................... II-9
2.1.7 Cutter Jam Prevention Mechanism.................................................................................. II-10
2.2 Outline of Control Electronics............................................................................................... II-11
2.2.1 Configuration................................................................................................................... II-11
2.2.2 Main PCB ........................................................................................................................ II-13
[ 1 ] Block Diagram............................................................................................................... II-13
[ 2 ] Identification of Tape Cassette Type............................................................................. II-14
CHAPTER III DISASSEMBLY & REASSEMBLY
3.1 Disassembly/Reassembly ....................................................................................................... III-2
3.1.1 Disassembly Procedure .................................................................................................... III-2
[ 1 ] Removing the Cassette Cover, Tape Cassette, Dry Cells and Cassette Panel................ III-2
[ 2 ] Removing the Cutter Case ASSY and Board,
and Separating the Upper Cover from the Bottom Cover .............................................. III-4
[ 3 ] Removing the Terminal Press Cover and Battery Terminals B ..................................... III-6
[ 4 ] Removing the Frame ASSY, Cutter Lever and Cassette Sensor PCB ASSY ................ III-7
[ 5 ] Removing the Battery Spring Plus / Minus.................................................................. III-11
[ 6 ] Removing the Cutter Sensor ASSY, Main PCB ASSY and Key PCB ASSY ............. III-12
[ 7 ] Removing the Upper Cover, Rubber 54 Key and LCD................................................ III-13
3.1.2 Reassembly Procedure.................................................................................................... III-14
[ 1 ] Installing the LCD and Rubber 54 Key........................................................................ III-14
[ 2 ] Installing the Main PCB ASSY, Key PCB ASSY and Cutter Sensor ASSY .............. III-15
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