Orban OPTIMOD 6200, Operating Manual

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5-4
TROUBLESHOOTING Orban Model 6200
System Receiving 6200’s Output Will Not Lock
Be sure that the 6200’s output sample rate is set to match the sample rate that the driven
system expects. Be sure that the 6200’s output
Stat Bit (Status Bits) control is set to
match the standard expected by the driven system (either
aes/ebu
or
spdif
).
System Will Not Pass Line-Up Tones at 100% Modulation
This is normal in
operate
mode. Sine waves have a very low peak-to-average ratio by
comparison to program material. The processing thus automatically reduces their peak
level to bring their average level close to that of program material, promoting a more
consistent and well-balanced sound quality.
To pass line-up tones transparently, initiate 6200’s built-in bypass from the front panel:
Open the Setup Test screen and change the
Mode setting to bypass . The 6200 can also
generate its own test tones: Change the
Mode
setting to
tone
.
Both bypass and tone modes can also be initiated using the 6200’s optically-isolated re-
mote interface (model 6200 OPTIMOD-DAB only), or via PC Control. Refer to Section
2, Installation for details.
System Will Not Pass Emergency Alert System (“EAS” USA
Standard) Tones at the Legally-Required Modulation Level
See “System Will Not Pass Line-Up Tones at 100% Modulation” (directly above) for an
explanation. These tones should be injected into the transmitter after the 6200, or the
6200 should be temporarily switched to
bypass to pass the tones.
General Dissatisfaction with Subjective Sound Quality
The 6200 is a complex processor that can be adjusted for many different tastes. For most
users, the factory presets, as augmented by the gamut offered by the
LESS-MORE con-
trol for each preset, are sufficient to find a satisfactory “sound.” However, some users
will not be satisfied until they have accessed other Modify Processing controls and have
adjusted the subjective setup controls in detail to their satisfaction. Such users must fully
understand the material in Section 3 of this manual to achieve the best results from this
exercise.
Excessively Loud Commercials (DTV Applications)
The Two-Band factory presets that use the Loudness Controller set their threshold at an
“average” level. If, in any preset, you feel that commercials are too loud by comparison
to surrounding program material, set the Loudness Controller to a lower threshold by
editing your on-air preset’s
LC THRESH control and saving it as a user preset. (Also,
make sure that the preset you are using has the Loudness Controller activated!)