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SYSTEM TROUBLESHOOTING
20. No Subwoofer.
* Verify the subwoofer amp is powered on.
* Use the DTS Setup disc to verify DTS subwoofer output.
* On a CP65, verify the sub switch on the CAT441 is in AUTO.
* DTS-6: If subwoofer works in optical and the stereo cable is being used for sub, verify “S1” on the D420
board (inside player) is switched
OFF (towards board).
* DTS-6: Interfaced with Dolby SR-D? Be sure pins 18 & 24 are jumpered on audio out to CP (use DTS D561
interface cable
).
* DTS-6D to CP500, verify pins 16 and 18 are removed on the DTS ANALOG cable.
21. DTS player won’t take disc(s) or ejects disc(s).
* Be sure the disc lies flat and the printed side faces up. Inspect disc.
* Caddy drive, try swapping the disc into another caddy. Inspect caddy for mechanical defects.
* Verify it is a DTS theatrical disc, any other disc will not work. Disc must contain the DTS.EXE file.
• Try disc in another drive. If the problem follows the drive, the drive is bad and should be replaced. If the problem
follows the disc, the disc is bad and should be replaced (or cleaned if dirty).
22. DTS player won’t release discs after pressing EJECT button on CD-ROM drive(s).
Most drives have a release mechanism accessed by a small hole next to the EJECT button. Use a paper clip and
press into the hole until the drive releases the disc. Once disc releases, try resetting the drive. If discs won’t be
accepted or ejected, replace the drive.
23. When a disc is loaded, the CD-ROM drive’s light flashes constantly, every other second.
Try cleaning the disc. If it doesn’t help, the drive is going bad and should be replaced soon.
24. Dual Projectors: One reader works but the other doesn’t.
* Open DTS player and look at D422-W1. A jumper should be set vertically across position “0”.
* Verify wiring of DTS Timecode “Y” cable. Carefully inspect any cable reworked to pass through conduit or
not made by DTS.
• On the projector side of the 9-pin cable, note that Pin 1 for Proj. 1 comes from Pin 1 DTS player. Pin 1 for
Proj. 2 comes from Pin 2 DTS player.
DTS Pin 1 (timecode signal for projector 1)----------------------------------Pin 1, Projector 1 Reader
Player “Y” Cable Pin 2 not used #1
TIMECODE Pin 2 (timecode signal for projector 2)----------
\
Cable
\
-----------------------Pin 1, Projector 2 Reader
Pin 2 not used #2
25. Dual Projectors, change-over problems: Sound does not change with picture.
The DTS player will automatically make a sound change-over when first frame of picture timecode is read on the
upcoming projector. DTS digital sound changes independent of the projector’s dowser position. Adjustment of
the roll down on the upcoming projector may be necessary to obtain a “seamless” change-over.
26. Dual Projectors: One reader is in sync but the other isn’t.
Both readers must be installed at the same place on each projector. They both must have the same
OFFSET value. Use the DTS numbered leader to verify OFFSET setting on the DTS player.