User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 44
Issue 1 06/01
2.11 CONTACT SERVICE in CMT display
CONTACT SERVICE in CMT display (Self-tests with WinTesla)
Display Information: ”Contact Service”
This fault means that software is able to run and thus the watchdog of CCONT
(N100) can be served. Self–test functions are executed when power is switched
on and software is started to execute from flash.
If any one of the self–tests fails (except no. 3, 7, 8, and F), the text ”Contact
Service” is shown in the phone display.
MCU Self–tests are divided into those executed while power up (tests: 1–5 and
9–I ) and the ones can be executed with the connected PC. The tests and in-
cluded items are as follows (Figure 33, screendump from the WinTesla)
Figure 33.
The information can be used for diagnosis.
Memory tests differ from normal DCT3 self–tests. They can not be executed in
the ENOS because memory protection.
There is no EEPROM. The EEPROM is emulated in the FLASH (part of CS2).
All contents where EEPROM is mentioned refer to emulated EEPROM.
Item no. 1; MCU ROM Checksum: