Tools Required, Test Procedure, Spl

DTS-6/6D System Test

Tools Required

**RTA (real time analyzer) and pink noise card. Necessary to adjust EQ in “B” chain.

**SPL meter

Projector Speed Disc (special order from DTS)

DTS Technician’s Kit:

•6-Track SETUP Disc, Rev. DS1

Used to adjust DTS-6D levels, check automatic default switching, and verify operation of drives & player.

•	“Buzz and Bill Show” Disc (dated Feb. 1, 1999)	• DTS Demo Film, 35mm
•	Used with the DTS Demo Film to test the DTS system.	Used with the “Buzz and Bill Show” disc.
•	DTS Empirical Test Disc (dated June 7, 1997)
	Used to test the theater’s sound system

NOTE

** These items are not supplied by nor are available from DTS.

All tests should be preformed with no audience in the theater.

Test Procedure

1.Before testing the DTS system, check and adjust the theater cinema processor’s B-chain. This must be checked first. All level adjustments should be made with master fader set to “7”.

Remember, any changes to the B-chain will effect the DTS system.

2.Be sure the rear panel AC voltage switch is properly set for your main AC supply rating. Power on the DTS player and remove any discs.

3.Sync. Thread up the DTS demo film and use its special leader to calculate the offset. Verify this matches the OFFSET setting (delay) on the DTS player.

4.Insert the Setup Disc into the DTS player. You may use either the RevC or DS1 Setup Disc. The player should easily accept the DTS disc. Once the DTS player boots up, it should automatically switch the cinema processor to the correct format and tone/pink noise should be heard in the theater.

5.Set DTS levels. Open the screen curtains and ensure master fader is set to “7”. Take SPL meter into the theater and stand off-center in the rear third of the theater. SPL readings should be measured unweighted, or C weighted - slow. Verify all output levels are as noted below. Do NOT point the sound pressure level meter out of the porthole window, this will not give you correct SPL readings.

•		SPL
•	Left channel PINK noise	85dB
•	Left surround PINK noise high passed at 80Hz	82dB
•	Center channel PINK noise	85dB
•	Right surround PINK noise high passed at 80Hz	82dB
•	Right channel PINK noise	85dB
•	Sub bass channel PINK noise low passed w\DTS filter	91dB