User guide

821116: AMP2-16V Series User Guide

Chapter 5 Menu List

Dolby Decoder Configuration Menu

program that appears on the AUX (pair 5) output of the Dolby

decoder. Rotating this control shows you which programs are

contained in the bitstream. If you select a program that does not

exist, it defaults to Program 1. Usually, however, the stream

contains only one or two programs, so the setting should be either

Program 1 or Program 2.

• CRC Error Reporting: A CRC (Cyclic Redundancy Check) error is

a momentary flaw in the Dolby bitstream. This can occur for a

variety of reasons, including transmission errors or a brief

interruption of the bitstream. If this happens, the Dolby decoder

will mute the audio for a very short period (perhaps 32 ms) and

then will continue normally.

The occasional CRC error may be nothing to worry about, but

multiple errors indicate of a signal problem. CRC errors are flagged

and counted on the Main Screen of the AMP2-16V. Each time a

CRC error is detected, a red flag appears at the top of the screen as

shown in Figure 5–13 below.

Figure 5–13 CRC Error Count

After a few seconds, the red bar turns yellow and will remain until

you reset it. Note that when a CRC error first appears, the

button becomes the

Reset CRCs button.

• Decode: Either rotating or pressing this knob selects the Dolby

stream to decode. The available options include:

All Formats,

Dolby D Only, or Dolby E Only. This is especially useful for

signals that often switch between PCM and E or D. There will be a 1-

frame burst of noise for every switch between PCM and D or E,

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SwapVideo/Data