Nokia Alfaskop TT/386 User Manual page 73

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Problems at Power On
Problem Area Observation Action
System unit. Power-On indica-
tor does not light.
See Checking Electrical
Connections later in this
chapter.
A sequence of four
or eight beeps is
heard immediately
after powering on
the system unit.
Turn the system unit off.
Wait a few seconds and
then turn it on again.
If the sequence of beeps is
heard again, see Power-On
Test Errors later in this
chapter.
Keyboard. Error message
displayed. Two long
beeps heard.
See Power-On Test Errors
later in this chapter.
Monitor, Blank screen. One
powered from long beep heard,
the system
unit.
Check brightness control.
If screen still blank, turn
the power off and check
that the signal/power cable
is properly connected both
to the monitor and the
system unit.
Only cursor visible.
Power-On indica-
tor does not light.
Service needed.
See Checking Electrical
Connections later in this
chapter.
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