Intermec EasyCoder 501 - Circuits and Straps

Intermec EasyCoder 501 – Service Manual Ed. 7
124
Chapter 17 CPU Board
The following socket-mounted circuits, straps, and potentio-
meters on the CPU Board are of immediate interest to the service
technician. Connectors are described in Chapter 17.4.
POWER ON
040700.10
040700.10
FLASHEPROM
IC-20
232
CL
422
BW
FW
P-102 P-100 P-101
LTSLSS R-END
DISP
+-
P-203
P-200
P-11
P-208
P-206
P-209
P-207
P-204
P-205
P-202
P-302
P-607
P-604
P-9
P-10
IC-206
IC-205
IC-207
IC-104
IC-105
IC-102
IC-103
IC-100
IC-101
IC-106
IC-107
IC-108
IC-109
IC-508
IC-200
FY-300
IC-07 IC-402
IC-04
IC-700
WR-600 WR-602 WR-601
WR
-15
Standard-Mounted Circuits:
IC-04 Program GAL 501
IC-07 CG-16 processor
IC-100 to 101 Intermec Fingerprint EPROMs (or Flash Memory)
IC-102 to 103 Confi guration EPROMs (or Flash Memory)
IC-106 to 109 SRAM packages
IC-200 RS-232 driver circuit
IC-402 HPC slave processor
IC-508 DMA circuit
IC-700 Program GAL STD or EHC
FY-300 Fuse 6.3A 5x20 FST IEC
Optional Circuits:
IC-20 Clock Circuit (RTC)
IC-104 to 105 Memory expansion EPROMs (or FLASH)
IC-205 to 206 Optocouplers for 20 mA CL on "uart1:"
IC-207 RS-422 circuit for RS-422 on "uart1:"
17.3 Circuits and
Straps
Hardware Straps:
P-9 Programmable straps (J1 = No transfer unit fi tted)
P-10 + 24V enable/disable
P-100 to 102 EPROM/FLASH select for IC-100 to 105
P-200 DTR/RTS select for RS-232 on "uart1:"
P-202 Interface select for "uart1:"
P-203 External + 5V enable/disable
P-204 to 209 RS-422 confi guration for "uart1:"
P-302 Internal + 5V enable/disable
P-604 Emitter level select for Ribbon-End Sensor
P-607 Emitter level select for Label Taken Sensor
Potentiometers:
WR-15 Display contrast
WR-600 Label Stop Sensor
WR-601 Ribbon End Sensor
WR-602 Label Taken Sensor