Bionet Cardio 7, Service Manual

Page: 21 / 79

C7SM-1.01
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Service Manual of Cardio 7
3-1. There are too many noises in the wave
pattern.
3-2. The noises periodically occur
throughout the wave patterns.
3-3. The thick noise is made on the wave
patterns.
3-4. The wave output looks like the noise
and are not properly shaped.
1. This problem occurs when the filter value
is not corrected.
2. Press the menu key, showing the
overlapped circle and triangle, at the
bottom of the Keypad.
3. Press the right arrow key once to select
FLT and then press the menu key.
4. Check if the filter value shows BASE: ON,
MUSC: OFF, AC: 60 Hz, LDF: 150Hz and, if
not, correct it.
5. Since the noise occurs as in problems 2
and 3 if the AC filter is turned off or set at
different frequency from the power
source, the system must be set at 50Hz or
60Hz to correspond to the input power.
(It is different each country) The AC filter
status is shown at the left bottom of the
printout as
'CUT OFF (ON) AC'.
6. Problems 3.4 occurs when the BASE is set
at OFF. Change it to ON.