Specifications

XD10 Cinema Media Player, Installation and Operating Guide Version 1.0
3. Calibration and Setup
This chapter describes procedures for XD10 audio level adjustment, timecode reader sync adjustment,
sound performance verification and fail-safe operation verification.
3.1. Equipment Requirements
Complete checkout and adjustment of the DTS XD10 requires, as a mininum, a good quality true RMS
multimeter, an SPL meter, and the XD10’s built-in test tones.
Note: Lower quality voltmeters tend to become inaccurate at higher frequencies, such as
the 1 kHz tone used for DTS playback calibration, and will result in incorrect calibration.
To verify or adjust the built-in audio setup tones, a DTS E313-00 output test board will be needed (obtain
from DTS).
Note: A complete “B-Chain” of the cinema processor (CP), including Room EQ, must be
adjusted prior to calibration of the XD10.
3.2. Measuring and Adjusting XD10 Audio Levels
Channel setup tests and tones are pre-recorded onto the system hard drive. To use them, refer to the menu
section for setting levels (Main menu | System Setup | Audio Setup | Level Adjustment).
The audio playback level of the XD10’s built-in 1kHz test tone has been preset at 300mV RMS
when the output is set to 0.0 dB. The reason it’s set to 300 mV is that most cinema processors use this
as their reference level. Consult the manual for your CP to determine the input buss level, or contact the
manufacturer. Use the procedure below to verify that the XD10 is set to the correct output level or to
make any necessary changes.
To verify or adjust the output level of each channel, follow this procedure.
The XD10 must be ON. Refer to chapter 1, topic Level Adjustment, for details.
1. Connect the XD10 Analog Out cable from the XD10 to the DTS E313 test board.
2. Connect your multimeter’s test leads to the E313.
3. Select Reference Tone from the Level Adjustment menu (Main menu | System Setup | Audio Setup |
Level Adjustment). Press ENTER.
An adjustment screen for the first channel will display. The 1 kHz Reference Tone will begin to play
on all channels and continue to play as you cycle through the adjustment screen for each channel.
Adjust level for
Ch 1 (Left)
[ +00.0 dB ]
Tone on all channels
Press ► or ENTER to advance to
the next channel. Press ▲ or ▼ to
change level setting.
4. Set the multimeter for AC input at an appropriate range to measure a 300 mV signal. Use the
multimeter to check the output level for each channel on the E313 board.
If the output is 300 mV (± 10), press ► or ENTER to move on to the next channel.
If the output is NOT correct, or if your cinema processor requires an output level other than 300 mV
,
use the ▲ or ▼ buttons to adjust the level.
5. When finished, remove the E313 tester board (and store it for future use). Reconnect the audio cable
from the XD10 to the CP.
Calibration and Setup Document #: 9301E692001.0
3-1