Philips SOPHO SuperVisor 25 Engineer's Manual page 31

START AT
LINE POWER
RAM test
N
OK?
Y
N
Key board
OK?
Y
Boot ROM test N
OK?
Y
N
Contents of
FEPROM
correct?
Y
Firmware Downloading Required yy
OPERATIONAL
Figure 3-1 Startup Procedure in Model 25 and Model 35.
Firmware error or mismatch !
Error mess. =
Start firmware downloading
From PC and erase FEPROM
Display message:
Firmware downloading in
MODEL 35 MODEL 25
Power Supplied
via Analoque
Interface?
Y
Startup firmware and
establish Analoque
Operator interface
Operator
N
Facility
available?
Y
Err. mess. =External Ram 0/1/2 failure
Err. mess. =Keyboard error
Err. mess. =Boot ROM failure
Note: If downloading fails, an error
message is displayed at the
PC but not on the console.
N
Startup firmware and
establish S bus
0
connection
Err. mess. =Operator facility not (yet) available
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