Intermec EasyCoder PC4 - Block Diagram

54 Intermec EasyCoder PC4—Service Manual
Chapter 7—Main Board
7.5 Block Diagram
RAM:
2048K
(U4)
Fl
ash:
1024K
(U2, U3)
MEMORY
POWER BLOCK
24 VDC input
DC to DC Converte
r
(J1)
CPU
16 bit, 20 MHz
incl. UART & IO
(U1)
CONNECTORS
JP9: Feed switch & LED
JP5:
Future options
JP10: Upper label gap sensor
JP11, JP12: Headlift switches (l & r)
JP13:
Lower label gap & black mark sensor
JP8: Label taken sensor
JP7: Ribbon end sensor
JP14:
Cutter interface
PARALLEL PORT
Centronics 36pin female
(JP3)
RS-232 PORT
DB-9pin female
(JP 4)
MOTOR BLOCK
Polar stepper motor
(JP1)
External thermistor sensor
(JP2)
MEMORY CARTRIDGE
1MB Flash
(JP15)
PRINTHEAD
8 or 11.81 dots/mm
(CN1, CN2)
MEMORY DECODER (PAL)
(U7)
USB PORT
Class B female
(JP6)
5V24V