OPERATION 3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS Menu Control with Key Switch (C) and Key Group (D) Display of Menu Options Example: Display of INPUTS-OUTPUTS , starting from basic display on level -0-, see Menu Control Charts I and III. The main group *INPUTS-OUTPUTS* is basically used for Test- ing procedures through authorized service staff and therefore locked during normal operation. Access to the *INPUTS-OUT- PUTS* can be obtained in the main group *SERVICE* as described below. Proceed as follows: 1. Press the ”QUI” key (10), the menu level -1- *TRUCKS* appears on the display, see Chart I. 2. Press key (12) three times, the main group *SERVICE* appears on display. 3.
Press key (10), the menu level -2- with the starting group *Language* appears on the display. 4. Press key (12) four times, the group *INPUTS-OUTPUTS ON/OFF* appears on the display. 5. Press key (10), the menu level -3- with Menu item INPUTS- OUTPUTS Condition: 0 (OFF) ” is displayed. 6. Press key (12), *OPERATE KEY SWITCH* appears on the display. 7. Operate key switch (C) ”Condition: 0 (OFF)” appears on the display. 8. Press key (12) to change the condition from ”0” to ”1 (ON) Now access to main group *INPUTS-OUTPUTS* is possible. 9. Press the ”RET” key (9) two times for returning to the menu level -1-. The main group *SERVICE* appears on the display. 10.
Press key (12), for display of the main group "INPUTS-OUTPUTS*. All menu levels and items within the main group INPUTS- OUTPUTS are now accessible by means of key group (D), refer to menu control charts on the following pages. 125