Hofmann Snap-on Y2k, Руководство по обслуживанию

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Selftest during startup (CRT/HNA/HWT)
A series of tests is accomplished after the machine has been turned on. If a test is not successful:
•
a series of audible signals is given, or
•
an error code is read out.
On HNA/HWT or CRT models, a three-tone signal is given once, if the machine is operative.
In case there is a functional error it must be acknowledged by pressing the STOP or ESC key and there is no three-
tone signal.
1. Communication between microcontroller and embedded PC
Blue screen
Affected models : CRT models
Service Codes : No service code available
Communication between micro-controller and embedded PC is not OK (check connecting cable).
This can also indicate a bad connection to the keyboard.
2. Check availability of keyboard
E 300
Affected models : CRT models
Service Codes : No service code available
The microcontroller was not able to detect a keyboard.
Check cabling between microcontroller and keyboard.
3. Check content of permanent memories
E 145
Affected models : All models
Service Codes : C85, C86 to copy content of permenent memory
Contents of both permanent memories are different, but both contain valid data.
If the trouble signalled by the error code is not remedied (using service codes C85 or C86), the machine
will remain in service code mode.
4. Check model information
E 900
Affected models : All models
Service Codes : C47 to set model
The stored machine model is not known.
If the trouble signalled by the error code is not remedied (using service codes C47), the machine will
remain in service code mode.
5. Check keyboard
E 89
Affected models : All models
Service Codes : No service code available
One of the keys F1 to F6, HELP, ESC, START supplies a key code.
The machine will proceed with the next step only if the trouble is remedied.