At 08:45 PM 8/10/99 EDT, you wrote:
>
>I hate to bring up the subject of the sharp 702 again because i know that it
>has been debated a lot lately, but anyway I just had a few questions about
>its test mode that I was hoping some of you could answere for me. First of
>all is there anything even semi usefull or entertaining that you could use
>its test mode for other than to repair it? ( if so how would I do this )
Also
>I know I got a little ahead of myself by asking all that before but could
>someone explain exactly what the porpose of test modes are on any md? And
>lastly does anyone of this tie into the scms code breaking that I've heard
so
>much about, and if so how can this be done?
Test modes are not usually entertaining, unless perhaps you press the
buttons randomly, in which case you can do a mean rendition of a horror
story. The safer options: test tones can be generated, servos can be sent
buzzing, and some units have a thermometer, although that will measure the
unit's temperature, and not that of the surrounding air.
Utility functions in test modes... Not many. You can screw up a disc, but
that's about it. Test modes are for self-diagnosis and tuning primarily. MD
recorders/players are complicated devices that, unlike cassette players,
are usually worth fixing over replacing. The fact that they are all
electronic lends them to doing self-diagnosis too- you would hardly put
extra electronics in a tape deck just so you could find out that the motor
was faulty, or the belt was broken, or the head was dirty...
SCMS code breaking is externally done. You use a peripheral device.
Cheers,
Kade.
--
Archer
http://www.geocities.com/SoHo/6413/
End.
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