Table Of Contents - TSC TDP-643R PLUS Service Manual

TDP-643R PLUS BAR CODE PRINTER
SERVICE MANUAL
1. FUNDAMENTALS ABOUT THE SYSTEM .............................................................. 1
1.1 Overview .......................................................................................................................... 1
1.1.1Front View .............................................................................................................. 1
1.1.2 Rear view .............................................................................................................. 2
1.2 Printer Specification ......................................................................................................... 3
1.2.1 Printer .................................................................................................................... 3
1.2.2 Indicators and Button ............................................................................................ 3
1.2.3 Communication Interface ...................................................................................... 3
1.2.4 Power Requirement ............................................................................................... 4
1.2.5 Environment .......................................................................................................... 4
1.2.6 Dimensions ............................................................................................................ 4
1.3 Communication Interface ................................................................................................. 5
1.3.1 Serial Interface ...................................................................................................... 5
1.3.2 Parallel Interface ................................................................................................... 6
1.4 Available Bar Codes ......................................................................................................... 6
1.5 Effective Print Area .......................................................................................................... 7
2. SUPPLY SPECIFICATIONS .................................................................................... 8
2.1 Types of Paper .................................................................................................................. 8
2.2 Specifications ................................................................................................................... 8
3. ELECTRONICS ..................................................................................................... 10
3.1 Circuit Description ......................................................................................................... 10
3.2 MCU Pin Description ..................................................................................................... 12
3.3 Reset Circuit ................................................................................................................... 14
3.4 Memory System ............................................................................................................. 14
3.5 Sensor & key .................................................................................................................. 15
3.6 Real-Time Clock Circuit ................................................................................................ 16
3.7 Decode Circuit ............................................................................................................... 16
3.8 Thermal Head Drive/Protection and History Control Circuit ........................................ 18
3.9 24V/5V Converter Circuit .............................................................................................. 19
3.10 Stepping Motor Driver /Protection Circuit ................................................................... 19
3.11 Communication (Serial & Parallel Port) Circuit .......................................................... 21
3.12 Cutter Drive Circuit ...................................................................................................... 22
4. MECHANISM ........................................................................................................ 23
4.1 Mainboard Replacement ................................................................................................ 23
4.2 Stepping Motor Driver IC Replacement ........................................................................ 25
4.3 Print Head Replacement ................................................................................................. 26

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