Manual

page 68 of 80 MA2CHBOX.XL Manual - Version 1.3
CHAPTER 6: Troubleshooting and Maintenance
Issue Possible
reason
Solution
Input LED
is always
blinking.
Input signal is
not in sync with
device
or
input signal is not
stable
or
bad signal
condition (Jitter >
1 ns) - e.g. due to
exceeded length
or bad screening
attenuation of
signal cable.
Change the source
or
use appropriate cables.
Display
blinking in CH
selection.
Channel is not
available, due
to scaling factor
or 56ch mode
used.
Check the scaling factor in the
menu
or
check the input signal.
Display is
black.
No signal is
present and level
meter during idle
mode is enabled.
Check input signal
or
switch off level meter
(see page 42).