Orban OPTIMOD 6300 Operating Manual page 12

Discussion and Conclusions............................................................................................ 3-88
Section 4
.........................................................................................................................................4-1
R M
OUTINE AINTENANCE
S R
UBASSEMBLY EMOVAL AND
F A P
IELD UDIT OF ERFORMANCE
Table 4-1: Typical Power Supply Voltages and AC Ripple .............................................. 4-8
Section 5
.........................................................................................................................................5-1
P P
ROBLEMS AND OTENTIAL
RFI, Hum, Clicks, or Buzzes............................................................................................... 5-1
Poor Peak Modulation Control........................................................................................ 5-1
Audible Distortion............................................................................................................ 5-2
Audible Noise ................................................................................................................... 5-2
Gain pumping when high frequency energy is present................................................. 5-3
Shrill, Harsh Sound ........................................................................................................... 5-3
Dull Sound ........................................................................................................................ 5-3
Excessive Sibilance ("ess" sounds) ................................................................................... 5-4
System Will Not Pass Line-Up Tones at 100% Modulation ............................................ 5-4
System Will Not Pass Emergency Alert System ("EAS" USA Standard) Tones at the
Legally Required Modulation Level ................................................................................ 5-4
System Receiving 6300's Digital Output Will Not Lock .................................................. 5-4
AES Channel Status Bits Will Not Set the 6300 to Stereo or Dual-Mono Mode............ 5-4
Equipment Receiving the 6300's AES Output Changes Operation Mode Unexpectedly 5-
4
Loudness Does Not Change When your adjust the Output Level Control .................... 5-4
Sound is Unexpectedly Quiet........................................................................................... 5-5
General Dissatisfaction with Subjective Sound Quality.................................................. 5-5
Security Passcode Lost (When Unit is Locked Out) ......................................................... 5-5
Problems Specific to Sound for Picture Applications............................................5-5
Dialog is muffled .............................................................................................................. 5-5
Transient loudness events (like esses in speech) sound obtrusively loud ...................... 5-5
Commercials too loud in sound for picture applications ............................................... 5-6
Commercials too quiet ..................................................................................................... 5-6
Loudness incorrect compared to other Dolby Digital Transmissions............................. 5-6
A BS.1770 loudness meter indicates higher loudness than expected with some program
material............................................................................................................................. 5-7
CBS Loudness Controller reduces transient punch of programming............................. 5-7
Unexpected gain pumping .............................................................................................. 5-7
Connection Issues between the 6300 and a PC, Modem, or Network ................5-8
Troubleshooting Connections.................................................................................5-8
You Cannot Access the Internet After Making a Direct or Modem Connection to
the 6300: ..................................................................................................................5-9
OS-S T
PECIFIC ROUBLESHOOTING
Troubleshooting Windows 2000 Direct Connect:..................................................5-9
Troubleshooting Windows 2000 Modem Connect:.............................................5-11
Troubleshooting Windows XP Direct Connect: ...................................................5-12
Troubleshooting Windows XP Modem Connect: ................................................5-13
...................................................................................................4-1
R .......................................................................4-2
EPLACEMENT
..........................................................................................4-6
S ...............................................................................5-1
OLUTIONS
A ............................................................................5-9
DVICE
Maintenance
Troubleshooting