Intermec EasyCoder PX4i Service Manual page 5

14
Driver Board
14.1 Description ............................................................................................................138
14.2 Replacement ..........................................................................................................138
14.3 Components ..........................................................................................................140
14.4 Schematics .............................................................................................................142
15
CPU Board
15.1 Description ............................................................................................................144
15.2 Circuits ..................................................................................................................145
15.3 Connections ...........................................................................................................150
15.4 Test Points ..............................................................................................................151
15.5 Startup ...................................................................................................................152
15.6 Components ..........................................................................................................153
15.7 Schematics .............................................................................................................155
15.8 Replacing the CPU board ......................................................................................164
16
Interfaces
16.1 Introduction ...........................................................................................................166
16.2 Serial Communication Port "uart1:" ......................................................................167
16.3 USB Interface .........................................................................................................168
16.4 Bar Code Wand Interface .......................................................................................169
16.5 Installing an Optional Interface Board ...................................................................170
16.6 Serial/Industrial Interface Board .............................................................................174
16.7 Double Serial Interface Board ................................................................................184
16.8 IEEE 1284 Parallel Interface Board ........................................................................194
16.9 EasyLAN Ethernet Interface Board ........................................................................198
16.10 EasyLAN Wireless Interface Board .........................................................................203
17
Troubleshooting
17.1 Diagnosing ............................................................................................................ 210
17.2 No Reaction at Power Up ...................................................................................... 213
17.3 Printer Stops Working after Startup ....................................................................... 214
17.4 CPU Board Failures .............................................................................................. 216
17.5 Power Supply Unit Failures ................................................................................... 218
17.6 Driver Board Failures ............................................................................................ 219
17.7 Console Errors ...................................................................................................... 220
17.8 Error Messages ...................................................................................................... 222
17.9 No Communication (general) ............................................................................... 224
17.10 No Serial Communication .................................................................................... 225
17.11 No Network Communication ............................................................................... 227
17.12 Sensor Malfunctions .............................................................................................. 231
17.13 Printing Troubles ................................................................................................... 234
17.14 Transfer Ribbon Troubles ...................................................................................... 238
17.15 Liner Takeup Troubles ........................................................................................... 240
17.16 Memory Card Troubles ......................................................................................... 241
17.17 Paper Cutter Troubles ............................................................................................ 242
EasyCoder PX4i and PX6i Service Manual
Label Stop Sensor (LSS) ................................................................................. 231
Headlift Sensor ............................................................................................... 232
Label Taken Sensor (LTS) ............................................................................... 232
Ribbon Sensor ................................................................................................ 233
Paper Sensor ................................................................................................... 233
Contents
v