Circuits And Straps - Intermec EasyCoder 501 Service Manual

Chapter 17 CPU Board
17.3 Circuits and
Straps
EPROM
IC-109 IC-107
IC-508
- +
IC-108 IC-106
DISP
WR
-15
P-203
P-200
IC-200
IC-207
P-208 P-202
P-206
P-209
P-207
P-204
P-205
IC-205
IC-206
FY-300
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:"
124
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.
FLASH
P-102 P-100 P-101
IC-105 IC-103 IC-101
IC-104 IC-102 IC-100
232
CL
422
IC-07
040700.10 040700.10
IC-402
P-302
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
Intermec EasyCoder 501 – Service Manual Ed. 7
POWER ON
LSS LTS R-END
WR-600 WR-602 WR-601
P-9 P-604
P-10
P-607
P-11
BW
FW