Orban OPTIMOD-FM 5500 Operation Manual page 12

Interference from stereo into SCA .................................................................................. 5-4
Figure 5-1: Typical 5500 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 ............................................ 5-6
System Will Not Pass Emergency Alert System ("EAS" USA Standard) Tones at the
Legally Required Modulation Level ................................................................................ 5-6
System Receiving 5500's Digital Output Will Not Lock .................................................. 5-6
19 kHz Frequency Out-of-Tolerance................................................................................ 5-6
L-R (Stereo Difference Channel) Will Not Null With Monophonic Input...................... 5-6
General Dissatisfaction with Subjective Sound Quality.................................................. 5-6
Security Passcode Lost (When Unit is Locked Out) ......................................................... 5-7
Connection Issues between the 5500 and a PC, Modem, or Network ................5-7
Troubleshooting Connections.................................................................................5-7
You Cannot Access the Internet After Making a Direct or Modem Connection to
the 5500: ..................................................................................................................5-8
OS-S T
PECIFIC ROUBLESHOOTING
Troubleshooting Windows 2000 Direct Connect:..................................................5-9
Troubleshooting Windows 2000 Modem Connect:.............................................5-10
Troubleshooting Windows XP Direct Connect: ...................................................5-11
Troubleshooting Windows XP Modem Connect: ................................................5-12
T IC O
ROUBLESHOOTING
T S .......................................................................................................5-13
ECHNICAL UPPORT
F S ...........................................................................................................5-14
ACTORY ERVICE
S I
HIPPING NSTRUCTIONS
Section 6
.........................................................................................................................................6-1
S ................................................................................................................6-1
PECIFICATIONS
Performance.............................................................................................................6-1
Installation ...............................................................................................................6-2
C D .......................................................................................................6-5
IRCUIT ESCRIPTION
Overview ..................................................................................................................6-6
Control Circuits ........................................................................................................6-6
User Control Interface and LCD Display Circuits ...................................................6-7
Input Circuits............................................................................................................6-8
Output Circuits.......................................................................................................6-10
DSP Circuit..............................................................................................................6-12
Power Supply .........................................................................................................6-13
A .............................................................................................................6-13
BBREVIATIONS
P L ....................................................................................................................6-15
ARTS IST
Obtaining Spare Parts ...........................................................................................6-15
Control Board ........................................................................................................6-16
Combined Input/Output and DSP (I/O+DSP) Board ............................................6-18
Composite/SCA Daughterboard ...........................................................................6-22
Display Board (Front) ............................................................................................6-23
Display Board (Back)..............................................................................................6-23
S P
CHEMATICS AND ARTS
A ............................................................................5-9
DVICE
.......................................................................................5-13
PAMPS
..................................................................................................5-14
L D ...................................................................6-24
OCATOR RAWINGS
Technical Data