5-6
TROUBLESHOOTING
ORBAN MODEL 8300
L–R (Stereo Difference Channel) Will Not Null With Monophonic Input
This problem is often caused by relative phase shifts between the left and right
channels prior to the 8300’s input. This will cause innocuous linear crosstalk between
the stereo main and subchannels. Such crosstalk does not cause subjective quality
problems unless it is very severe.
General Dissatisfaction with Subjective Sound Quality
The 8300 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
L
ESS
-
M
ORE
control 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 satisfac-
tion. Such users
must
fully understand the material in Section 3 of this manual to
achieve the best results from this exercise.
By comparison to competitive processors, the 8300 offers a uniquely favorable set of
trade-offs between loudness, brightness, distortion, and build-up of program den-
sity. If your radio station does not seem to be competitive with others in your mar-
ket, the cause is usually source material (including excess use of lossy digital com-
pression), overshoot in the transmission link (including the FM exciter) following the
8300, or an inaccurate modulation monitor that is causing you to under-modulate
the carrier. A station may suffer from any combination of these problems, and they
can have a remarkable effect on the overall competitiveness of a station’s sound.
Section 1 of this manual provides a thorough discussion of system engineering con-
siderations, particularly with regard to minimizing overshoot and noise.
Security Passcode Lost (When Unit is Locked Out)
Please see
If You Have Forgotten Your Passcode
on page 2-35.
Connection Issues between the 8300 and a PC, Modem, or Net-
work
User Interface Slowdown
: The more user presets you make, the more slowly
the 8300 will respond to front-panel commands. Delete any user presets you do
not need.
Quick Setup
: On the Station ID screen (Quick Setup 9): Use Escape in place of
Cancel. The Cancel button will not work.
Software Updates
: Close any running Windows programs before attempting
to update.
Interrupted Software Updates
: If you canceled an update before it com-
pleted, wait at least one minute before attempting your next update.
Summary of Contents for 8300J
Page 1: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
Page 7: ...Operating Manual OPTIMOD FM 8300 Digital Audio Processor Version 2 1 Software...
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Page 247: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 29...
Page 254: ...6 36 TECHNICAL DATA ORBAN MODEL 8300 CPU Module...
Page 260: ...6 42 TECHNICAL DATA ORBAN MODEL 8300 8300 RS232 BOARD PARTS LOCATOR...
Page 262: ...6 44 TECHNICAL DATA ORBAN MODEL 8300 8300 POWER SUPPLY PARTS LOCATOR...
Page 264: ...6 46 TECHNICAL DATA ORBAN MODEL 8300 8300 I O BOARD PARTS LOCATOR...
Page 270: ...6 52 TECHNICAL DATA ORBAN MODEL 8300 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 278: ...6 60 TECHNICAL DATA ORBAN MODEL 8300 8300 DISPLAY BOARD PARTS LOCATOR...
Page 279: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...