Lexicon PCM 81 - REV User Manual page 27

PCM 81 User Guide
2-6
Parity, Biphase: Indicate that at least one bit (and therefore at least one audio
sample) was corrupted.
Parity, Biphase, and Confidence errors are most often caused by
inappropriate cabling. Be sure to use 75
kept as short as possible — standard audio cable will not work
reliably.
Each error is reported by name, with the number of occurrences of that particular
type of error. The display might show, for example "CRC: 4752". As many as
9999 instances of each error can be shown. If the number of actual errors
exceeds 9999, the display will indicate ">9999". A special symbol ( ) before the
error type indicates the most recently received error.
Press Load/ from the Dig In Status display and use ADJUST to scroll through the Error
Log.
A typical Error Log display showing that the last
error received was a CRC error ( CRC) and
that there have been more than (>) 9999 in-
stances of CRC errors since Word Clock was
last set to Ext.
To clear the Error Log, reselect Ext from the Control Mode Word Clock display.
This will cause the PCM 81 to attempt to lock to the current external source and
will reset the Error Log. The log is also cleared on power up, and whenever it
relocks (Auto Lock On).
0.1 Analog In Lvl
This is a master level control for analog left and right inputs. Use ADJUST to
select values from 0-100%. If using only analog inputs, this should be 100% for
best audio performance. Values between 0% and 100% are for mixing analog
and digital sources.
Note: If the analog signal being fed into the PCM 81 is too hot, turn it down by
adjusting the front panel INPUT level control, or by changing the rear panel Input
Gain switch. (See Setting Audio Levels in Chapter 1.)
0.2 Dig In Lvl
This is a master level control for the selected digital left and right input connector.
Use ADJUST to select values from 0-100%. If using only digital inputs, this
should be 100%, with Analog InLvl set to 0% for best audio performance.
Values between 0% and 100% are for mixing analog and digital sources.
Note: Only one digital input connector can be active: XLR (AES/EBU) or Coax
(S/PDIF).
Lexicon
video-grade cable,
Audio *Error Log
0.0 CRC >9999