Intermec CK30 Service Manual page 4

Contents
IT4000 Imager Assembly Exploded View......................................................................... 35
IT4000 Imager Assembly Spare Parts List ........................................................................ 35
Tethered Scan Flex Assembly Exploded View................................................................... 36
Tethered Scan Flex Assembly Spare Parts List................................................................... 36
Safety Labels Exploded View ............................................................................................ 37
Safety Labels Spare Parts List............................................................................................ 37
4
Theory of Operation
System Architecture ......................................................................................................... 40
Processor Core ................................................................................................................. 41
I/O Signals....................................................................................................................... 43
I2C Bus ........................................................................................................................... 47
FPGA............................................................................................................................... 47
Power System................................................................................................................... 51
Power Management Architecture ..................................................................................... 54
Display............................................................................................................................. 66
iv
................................................................................................................ 39
Processor............................................................................................................. 41
System Clocks ..................................................................................................... 41
Memory .............................................................................................................. 42
FPGA Download ................................................................................................ 48
FPGA Power Management.................................................................................. 49
FPGA Bus Interface ............................................................................................ 50
FPGA Clocks ...................................................................................................... 50
Architecture, Power Supplies............................................................................... 51
Main Battery....................................................................................................... 52
Supercap ............................................................................................................. 53
External Power.................................................................................................... 53
Device Power States ............................................................................................ 56
Power Supply Controller (PSC) .......................................................................... 59
Battery Status Monitoring................................................................................... 60
Low-Battery Handling ........................................................................................ 61
Battery Status LED ............................................................................................. 62
Reset Control...................................................................................................... 63
I/O Control ........................................................................................................ 64
Resume Events .................................................................................................... 65
Suspend Events ................................................................................................... 66
LCD Panel.......................................................................................................... 66
LCD Controller .................................................................................................. 66
Bias Supply ......................................................................................................... 66
CK30 Handheld Computer Service Manual