Leader LT 4600A, Instruction Manual

Page: 45 / 114

7. GENLOCK FUNCTION (REFERENCE SETTING)
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● Panel Display
When you apply a reference signal, TRACKING FAST appears under LT4600A LOCK
STATUS, and EXT under REF blinks in green. This indicates that the reference signal is
being drawn in.
When genlock is complete, EXTERNAL appears under LT4600A LOCK STATUS, and
EXT under REF lights in green.
In genlock mode, use the LT 4600A in this condition.
If an error occurs in the external reference signal in the EXTERNAL state, the frequency
that was in use immediately before the error occurred is maintained (stay-in-sync
function).
Under LT4600A LOCK STATUS, STAY-IN-SYNC appears, and EXT under REF blinks in
red.
In the STAY-IN-SYNC status, even if the reference signal returns, the LT 4600A will not
automatically lock on to the reference signal. To lock on to the reference signal, set
GENLOCK MODE under REFERENCE SETTING to STAY-IN-SYNC, and then specify
RE-ADJUST.
Reference Section 7.2, “Selecting the Genlock Mode”
Relocking takes a few seconds, and the output signal becomes discontinuous.