User Guide

dCS Purcell User Manual Manual for Software Issue 2.2x
dCS Ltd September 2004
Manual filename: Purcell Manual v2.2x.doc Page 28 email: [e-mail]
English version web-site: www.dcsltd.co.uk
Ch.Check
Ch.CheckCh.Check
Ch.Check - Channel Check Test
Use this feature to check if the stereo outputs on your system are swapped. It is
disabled when in DSD/SACD mode.
do this: Set up your system to play music at a comfortable level.
do this: Open the Menu and step through until the display shows:
Ch.Check
do this: Press the Select button once to start the test. After briefly displaying Wait, the
following sequence occurs:
Left
A modulated tone should appear on the left channel only for several seconds.
None
Both outputs are muted for a second.
Right
A modulated tone should appear on the right channel only for several seconds.
Done
This is displayed briefly at the end of the test.
If the channels are swapped, check for wiring errors from the unit output
onwards. If you correct this temporarily using the Swap function on a dCS DAC,
note that the Swap setting is NOT remembered at power down.
Ph.Check
Ph.CheckPh.Check
Ph.Check - Phase Check Test
Use this feature to check if one channel in your system is phase inverted
4
. It is
disabled when in DSD/SACD mode.
do this: Set up your system to play music at a comfortable level.
do this: Open the Menu and step through until the display shows:
Ph.Check
do this: Press the Select button once to start the test.
After briefly displaying Wait, the following sequence occurs:
Normal
In-phase noise appears on both channels for several seconds.
None
Both outputs are muted for a second.
Inverted
4
The ear responds to positive pressure substantially more than it does to negative pressure for low
frequencies, so it is worth getting the phasing correct.