DOCUMENTATION RESERVED FOR RCH SERVICE CENTERS.
RCH TOUCH ME
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4
4.6 UPDATING THE KEYPAD DISPLAY SOFTWARE................................................................................35
5. PRINTING FUNCTION CODES................................................................ 37
6.
MAINTENANCE .................................................................................... 39
6.1 PROGRAMMING DATE AND TIME.......................................................................................................39
6.2 OPENING AND CLOSING THE HOUSING ............................................................................................39
6.3 TOTAL RESET........................................................................................................................................40
6.4 PGRADING THE FIRMWARE ................................................................................................................41
6.5 ORDINARY AND PERIODICAL MAINTENANCE ..................................................................................43
6.5.1 RESTRICTIONS: ..............................................................................................................................43
6.5.2 REPLACING FUSES ........................................................................................................................43
7
SERIAL CABLE DRAWINGS................................................................... 44
7.1 SERIAL CABLE FOR CONNECTION TO A PC .....................................................................................44
7.2 SERIAL CABLE FOR CONTROL UNIT CONNECTION.........................................................................45
7.3 POSPLUS CONNECTION ......................................................................................................................45
8. TOUCH ME SYSTEM ARCHITECTURE .................................................. 46
8.1 TOUCH ME BLOCK LAYOUT ................................................................................................................47
8.2 LAYOUT TOUCH ME..............................................................................................................................48
8.3 MAIN BOARD CONNECTOR LEGEND .................................................................................................48
9. CIRCUIT DESCRIPTION .......................................................................... 49
9.1 KEYBOARD CIRCUIT.............................................................................................................................49
9.2 DISPLAY CIRCUIT..................................................................................................................................50
9.3 PRINTER CONTROL CIRCUIT...............................................................................................................51
9.4 E.J. WRITING / READING CIRCUIT (ELECTRONIC JOURNAL)..........................................................53
9.5 DRAWER OPENING CIRCUIT ...............................................................................................................53
9.6 ADDRESS BUS AND DATE BUS CIRCUITS.........................................................................................54
9.7 COMMUNICATION SERIAL PORTS RS232 ..........................................................................................55
9.8 POWER SUPPLY CIRCUIT ....................................................................................................................56
9.9 RESET AND POWER FAILURE CIRCUITS ...........................................................................................57
9.10 BUZZER CIRCUIT.................................................................................................................................57
9.11 QUARTZ OSCILLATING CIRCUITS.....................................................................................................58
9.11.1 RTC CIRCUIT (time / date) ............................................................................................................58
9.11.2 MICROPROCESSOR U17 CLOCK CIRCUIT.................................................................................58
9.12 RAM, RTC and CPU MEMORY BACKUP CIRCUIT ............................................................................59
10. ERROR MESSAGES LIST ..................................................................... 60
