Euro-50
Service manual
38
Elcom s. r. o.
5.1. The motherboard
5.1.1. Abbreviations used
Logic levels :
•
L - logic 0
•
H - logic 1
•
X - L or H
•
Hi-Z - state of high impedance
Logic signals with an active L level are in the schematics marked with an „n“ on the end, for example, RESETn.
5.2. Configuration of the jumpers on the motherboard
Table 5.1. Configuration of the jumpers
Jumper
Function
Configuration
XT1
Permission for initializing the cash register.
active if jumper is connected
XT2
NA
-
XT3
Permission mode for updating the cash register software
active if jumper is connected
5.3. List of connectors on the motherboard
Table 5.2. Connectors
position
connector
XC1
Connector for connecting fiscal memory.
XC2
Connector for cashier display.
XC3
Connector for the customer display
XC4
Connector for connection dps POWER - supply voltage
XC5
Connector for connection dps POWER - controlling, communication signals
XC6
JTAG interface.
XC7
Connector for printer connection
XC8
Connector for auxillary paper ribbon sensor
XC9
Connector for the palten position sensor
XC10
Connector for connection of the main accumulator.
XC11
Connector for journal winding motor.
XC12
RS232 port COM1
XC13
RS232 port COM2
XC14
Serial port COM3
5.4. Microcontroller
The Euro 50 uses the STR911FAW44X6 microcontroller, which operates at a frequency of 16MHz. The microcontroller
is powered from a 1.8V (core), 3.3V (peripherals) and a 3V (backup) sources. The microcontroller contains internal me-
mory RAM, FLASH, and an RTC circuit.
5.4.1. Classifying of microprocessor outputs and values in the individual power modes of
the cash register
During a reset and after a reset before the starting of the software, ports PO to P9 of the microcontroller are set as
GP10 inputs. All pins of the PO to P9 ports and inputs of other components in use are saved by pull-up or pull-down
Summary of Contents for Euro-50
Page 1: ...Euro 50 Euro 50 Service manual version 1 0 ELCOM s r o 2008...
Page 6: ......
Page 7: ...Service manual Euro 50 Elcom s r o 7 1 INTRODUCTION...
Page 9: ...Service manual Euro 50 Elcom s r o 9 2 DISASSEMBLING THE CASH REGISTER...
Page 23: ...Service manual Euro 50 Elcom s r o 23 3 TESTING THE CASH REGISTER...
Page 28: ......
Page 29: ...Service manual Euro 50 Elcom s r o 29 4 REMOVING MALFUNCTIONS...
Page 37: ...Euro 50 Service manual 37 Elcom s r o 5 THE CASH REGISTER CIRCUITS...
Page 51: ...Service manual Euro 50 Elcom s r o 51 6 CONNECTING PERIPHERAL DEVICES...
Page 54: ...Euro 50 Service manual 54 Elcom s r o...
Page 55: ...Servisn manu l Euro 50 Elcom s r o 55 7 UPDATING THE CASH REGISTER SOFTWARE...
Page 58: ......
Page 69: ...Euro 50 Service manual Supplements Elcom s r o 69 PCB E50 MB ASSEMBLY DRAWING TA...
Page 74: ...Euro 50 Service manual Supplements 74 Elcom s r o PCB E50 POWER ASSEMBLY DRAWING...