Table of Contents
1. Preface...........................................................................................................................................1
2. Introducing the PT30.....................................................................................................................1
2.1 Overview...................................................................................................................................1
2.2 Features....................................................................................................................................1
3. Released Models...........................................................................................................................2
4. About This Manual........................................................................................................................2
5. Specifications................................................................................................................................3
6. Basic Operations...........................................................................................................................4
6.1 PT30 Mobile Computer..............................................................................................................4
6.2 Switching On/Waking up the PT30.............................................................................................4
6.3 Scanning Barcodes ...................................................................................................................5
6.4 Turning On the Modules ............................................................................................................6
7. Repair Kit.......................................................................................................................................7
8. Disassembling/Assembling the PT30...........................................................................................7
8.1 Disassembling the PT30............................................................................................................7
8.2 Assembling the PT30...............................................................................................................13
9. PT30 Circuits...............................................................................................................................13
9.1 Overview.................................................................................................................................13
9.2 Mainboard-LCD Interface Circuit..............................................................................................14
9.3 Backlight Control Circuit ..........................................................................................................14
9.4 Keypad Interface Circuit...........................................................................................................15
9.5 USB Interface Circuit...............................................................................................................16
9.6 l/O Interface Circuit..................................................................................................................16
9.7 Vibrator Control Circuit ............................................................................................................17
9.8 Speaker Control Circuit............................................................................................................18
9.9 RTC Circuit..............................................................................................................................18
9.10 Scan Engine Interface Circuit.................................................................................................19
9.11 LED Circuit............................................................................................................................19
9.12 ADC Circuit............................................................................................................................20
10. Analysis and Repair of Malfunctions .......................................................................................21
10.1 Unresponsive Keypad............................................................................................................21
10.2 RS232 Communication Problem............................................................................................21
10.3 Battery Charging Problem......................................................................................................22
10.4 Startup Failure.......................................................................................................................22