About Aliases created by Optimod 9400 PC Remote Software .........................3-67
Multiple Installations of Optimod 9400 PC Remote ...........................................3-67
To share an archived User Preset between 9400s:........................................................ 3-69
Section 4 Maintenance
.........................................................................................................................................4-1
ROUTINE MAINTENANCE ...................................................................................................4-1
SUBASSEMBLY REMOVAL AND REPLACEMENT.......................................................................4-2
FIELD AUDIT OF PERFORMANCE..........................................................................................4-6
Table 4-1: Decoder Chart for Power Supervisor ............................................................. 4-8
Table 4-2: Layout Diagram of J7, with expected voltages on each pin......................... 4-9
Table 4-3: Typical Power Supply Voltages and AC Ripple.............................................. 4-9
Section 5 Troubleshooting
.........................................................................................................................................5-1
PROBLEMS AND POTENTIAL SOLUTIONS...............................................................................5-1
RFI, Hum, Clicks, or Buzzes............................................................................................... 5-1
Poor Peak Modulation Control........................................................................................ 5-1
Audible Distortion On-Air................................................................................................ 5-2
Audible Noise on Air........................................................................................................ 5-3
Shrill, Harsh Sound ........................................................................................................... 5-4
Dull Sound ........................................................................................................................ 5-4
Excessive Occupied Bandwidth........................................................................................ 5-4
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 ................................................................................ 5-5
System Receiving 9400’s Digital Output Will Not Lock .................................................. 5-5
L–R (Stereo Difference Channel) Will Not Null with Monophonic Input ...................... 5-5
AM Analog and Digital Channels Have Unequal Loudness ........................................... 5-5
Loudness Decreases Momentarily When the Radio Crossfades between Analog and
Digital Channels ............................................................................................................... 5-6
Excessive Sibilance (“ess” sounds) in the Digital Radio Channel ................................... 5-6
“Swishing,” “Phasing,” or “Underwater” Artifacts in the Digital Radio Channel ....... 5-6
General Dissatisfaction with Subjective Sound Quality.................................................. 5-6
Security Passcode Lost (When Unit is Locked Out) ......................................................... 5-7
Connection Issues between the 9400 and a PC, Modem, or Network ................5-7
Troubleshooting Connections.................................................................................5-8
You Cannot Access the Internet After Making a Direct or Modem Connection to
the 9400: ..................................................................................................................5-8
OS-SPECIFIC TROUBLESHOOTING ADVICE ............................................................................5-9
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
TROUBLESHOOTING IC OPAMPS .......................................................................................5-13
TECHNICAL SUPPORT.......................................................................................................5-14
FACTORY SERVICE...........................................................................................................5-14
SHIPPING INSTRUCTIONS ..................................................................................................5-14
Section 6 Technical Data
.........................................................................................................................................6-1
To Next Page
Loading...
Need help?
General
