Orban OPTIMOD-FM 8500S, Operating Manual

Page: 12 / 335

Multiplex Power Control in Stand-Alone Stereo Encoder Mode................................. 3-76
T
EST
M
ODES
.................................................................................................................3-77
Table 3-13: Test Modes .................................................................................................. 3-77
G
ETTING THE
B
ASS
S
OUND
Y
OU
W
ANT
............................................................................3-78
Summary ......................................................................................................................... 3-80
U
SING THE
8500S PC R
EMOTE
C
ONTROL
S
OFTWARE
.........................................................3-80
To set up a new connection:.................................................................................3-81
To initiate communication:...................................................................................3-81
To modify a control setting: .................................................................................3-82
To recall a preset:...................................................................................................3-82
To save a user preset you have created: ..............................................................3-83
To back up User Presets, system files, and automation files onto your computer’s
hard drive:..............................................................................................................3-83
To restore archived presets, system files, and automation files:........................3-84
To modify I
NPUT
/O
UTPUT
and S
YSTEM
S
ETUP
:...........................................................3-85
To modify A
UTOMATION
: .........................................................................................3-86
To group multiple 8500S units:.............................................................................3-86
Operation Using the Keyboard ............................................................................3-86
To Quit the Program .............................................................................................3-86
About Aliases created by Optimod 8500S PC Remote Software .......................3-87
Multiple Installations of Optimod 8500S PC Remote .........................................3-87
Section 4 Maintenance
.........................................................................................................................................4-1
R
OUTINE
M
AINTENANCE
...................................................................................................4-1
S
UBASSEMBLY
R
EMOVAL AND
R
EPLACEMENT
.......................................................................4-2
F
IELD
A
UDIT OF
P
ERFORMANCE
..........................................................................................4-6
Table 4-1: Typical Power Supply Voltages and AC Ripple .............................................. 4-7
Figure 4-1: Typical Frequency Response, 30Hz to 15 kHz............................................... 4-9
Section 5 Troubleshooting
.........................................................................................................................................5-1
P
ROBLEMS AND
P
OTENTIAL
S
OLUTIONS
...............................................................................5-1
RFI, Hum, Clicks, or Buzzes............................................................................................... 5-1
Unexpectedly Quiet On-Air Levels .................................................................................. 5-1
Poor Peak Modulation Control........................................................................................ 5-1
Unexpected Delay Between the Program Feed and the On-Air Signal......................... 5-2
Audible Distortion On-Air................................................................................................ 5-2
Audible Noise on Air ........................................................................................................ 5-3
Whistle on Air, Perhaps Only in Stereo Reception ......................................................... 5-4
Interference from stereo into SCA .................................................................................. 5-4
Figure 5-1: Typical 8500S baseband spectrum with heavy processing, 0-100 kHz. ....... 5-4
Shrill, Harsh Sound ........................................................................................................... 5-5
Dull Sound ........................................................................................................................ 5-5
System Will Not Pass Line-Up Tones at 100% Modulation ............................................ 5-5
System Will Not Pass Emergency Alert System (“EAS” USA Standard) Tones at the
Legally Required Modulation Level ................................................................................ 5-6
System Receiving 8500S’s Digital Output Will Not Lock................................................. 5-6
You See A “Communications Board Error” Message ..................................................... 5-6
19 kHz Frequency Out-of-Tolerance................................................................................ 5-6
L–R (Stereo Difference Channel) Will Not Null With Monophonic Input...................... 5-6