Digitrax SoundFX SFX004 Handmatig - Pagina 4

Blader online of download pdf Handmatig voor {categorie_naam} Digitrax SoundFX SFX004. Digitrax SoundFX SFX004 12 pagina's.

figurations, as shown in the following tables of Sound FX CVs. Sound

schemes other than the default Steam (CV60=0) or Diesel (CV60=1)

schemes may be loaded by using a Digitrax PR2 Sound FX Programmer.

Note: For standalone operation without a DH165 series host decoder, DCC

track power may be connected to the two gold ringed pads (see page 10)

with holes that the two 2/56 screws engage on the Soundbug. Do not short

or connect to any other of the 8 pin connector pins.

U U s s i i n n g g t t h h e e S S F F X X 0 0 0 0 4 4 w w i i t t h h o o t t h h e e r r D D C C C C d d e e c c o o d d e e r r s s

The sound project loaded into this decoder may be operated independently of

any other DCC motor or function decoder. If another non-Sound FX com-

patible DCC decoder is connected to the track leads then CV readback of

SFX004 Sound CV's and PR2 SoundTest modes may not be possible. Note

that it is always possible to Write CV values using Operations mode or a

Service Mode programming track, even if CV Read is inoperative.

If the connected function loads are insufficient for CV readback with a PR2 or

an incompatible DCC decoder is also connected, it is still possible to down-

load a complete sound project by using the large green "program project"

icon. in the SoundLoader program.

S S p p e e a a k k e e r r M M o o u u n n t t i i n n g g a a n n d d B B a a f f f f l l e e / / E E n n c c l l o o s s u u r r e e s s . .

The sound performance of any attached speaker(s) is greatly affected by the

mounting system and required baffle or rear enclosure.

The baffle is used to isolate to speaker diaphragm front sound waves from the

out of phase rear sound waves. This minimises sound cancellation, particularly

at lower frequencies. For most efficient sound generation, the volume of the

baffle should be as large as practically possible, and the baffle walls should be

acoustically rigid so not to allow acoustic interference.

Practical baffle materials are plastic, cardboard and even sheetmetal. Common

items such as cardboard tubes or 35mm film canisters may be modified and

trimmed to create reasonable baffles. Commercial baffles are also available in

many sizes to match many types of speakers, such as a "TDS Enclosure 1.10"

diameter" from Tony's Train Exchange [1-800-978-3472] unit that will match

the 28mm factory speaker of the SFX004

Most HO or O scale or similar locomotives have limited internal volume within

the shell, so the choice of speaker mounting requires some ingenuity for good

sound performance and volume. An example of a commercial molded baffle in

a ready-to-run locomotive is the Kato HO F40-PH, where the 28mm speaker

clips into an enclosure at the upper rear of the locomotive shell.

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