24
DES-3901-S and DNS-3901-S Installation and Operation Manual
Chapter 3: Operation
Operation Notes
When using the DES-3901-S and DNS-3901-S modules, the following
operation notes should be observed:
•
Parameter settings that are made within 16 seconds after the
DES-3901-S
or
DNS-3901-S
banner has been lit on the VFD will
not be saved. Parameter changes made after this 16-second delay
will be saved and restored if the module loses power and must be
restarted.
•
Although the effect of a parameter change may appear to be
immediate, the module requires 20 seconds to save the latest
change. If another change is made during these 20 seconds, the first
parameter change and the second parameter change will not be
saved until 20 seconds after the second parameter change. There is
no limit to the number of changes that can be made within 20
seconds of each other. However, none of these changes will be
saved until 20 seconds after the last parameter change.
•
When you set the
FctryRcl
(factory recall) parameter to
Yes
, the
module takes several seconds to reset all of the parameters. (
Setup
parameters are not affected by this factory recall mode.) The lists of
“Operator and All List Parameters” on page 31
and
“Tree View
Parameters” on page 55
indicate parameter default settings that are
restored when
FctryRcl
is set to
Yes
.
•
In most cases, the modules automatically set the external reference
standard. When Composite and SDI-625 are selected as the input,
the reference standard is set accordingly. When SDI-525 is selected
as the input standard, the user must select either NTSC or PAL-M in
the
VoStdSet
parameter
.
Once this standard is selected, the
reference will follow.
•
Some parameters will be locked out if certain settings are made.
When this occurs, a lock icon will appear beside the affected
parameters in the card-edge VFD.
•
When a decoder is working in PAL-B mode, one of the following
situations may cause the subcarrier-to-horizontal value to shift
to 90°:
•
Switching between
Sync
and
Delay
while in the frame
synchronization mode (
FSMode
) parameter
•
Switching from
Enable
to
Bypass
while in the frame
synchronization function (
FSFunctn
) parameter
Caution
Failure to observe these
Operation Notes will result in
accidental changes to the
module’s parameter settings.
Summary of Contents for DES-3901-S
Page 8: ...vi DES 3901 S and DNS 3901 S Installation and Operation Manual Contents...
Page 22: ...8 DES 3901 S and DNS 3901 S Installation and Operation Manual Chapter 1 Introduction...
Page 60: ...46 DES 3901 S and DNS 3901 S Installation and Operation Manual Chapter 3 Operation...
Page 78: ...64 DES 3901 S and DNS 3901 S Installation and Operation Manual Index...
Page 79: ......
