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<div class=Section1>
<p class=MsoNormal>Hello Group:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Well…a bit of exciting news…at least for
me. We’ve acquired three TR-600 Quad machines. Unfortunately,
one had to be reduced to parts to move it, but at least we have the parts,
including motors, control boards, spare heads, etc.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I need some help and advice from the group.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We’ve identified the one machine that we feel has the
best chance of being operational again. This past weekend, we ran power
and air and powered up the machine. We check the test points in the power
supply and everything appears to meet proper voltage parameters and the voltage
appears stable. There are no air or vacuum leaks that we can
tell…so this appears good. However, we are not getting stable video
or any audio (see below). I would appreciate some advice.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We are running the air at about 55 PSI (adjusted at the
machine…120 from the air compressor). Vacuum is at 20 inches.
According to the manual, this should be a little higher, but 20 is the highest
we can get it to peak. Adjusting the air pressure didn’t affect the
vacuum. Vacuum being at 20 does not appear to be causing any problems,
but I am wondering if there is something we are not seeing. <o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>When we put the machine into thread mode, the capstan
releases and the tension arms move up and out of the way. The arm on the
head drops to allow threading. When we hit stop to take it out of thread
mode, the arm on the head does not automatically move back to position the tape
against the head…should this be automatic or do you have to manually
close this arm?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>When the machine is threaded and the tape properly
seated, the vacuum goes off the dial. I assume this is normal (sort of
like putting your hand over the suction end of a vacuum cleaner). Is this
correct?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We get a video signal, but it is all broken
apart. We were getting a “lock” error, but are able to
correct this by adjusting the capstan speed. But the video is the wrong
color (appears as if Chroma is all off). Any thoughts as to what to look
for (perhaps a board in the system).<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>5.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We get no audio unless we step on the foot
switch. If we manually turn the reels while depressing the foot switch,
we get audio (both in forward and reverse), however as soon as the foot switch
is released, audio immediately goes away. We thought this might be
related to the capstan, but the audio goes away even before the capstan is
fully engaged. Perhaps a relay is sticking or is bad. Any ideas?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>A couple of other items.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We were feeding synch from a synch generator<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We re-seated all the boards (with the machine powered
off)<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We tried two different heads…both heads appear to
have slight burnishing, but are not in bad shape. Neither made a
difference.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>One of our Engineers used to operate one of these
machines years ago for a TV station he worked for…so he is somewhat
familiar with it…but it was a long time ago.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>5.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We have a second machine that is complete…but the
air fittings are cracked (they appear to be nylon with push in
connectors). We also get no vacuum on that machine, so it would need some
work before being operational. Not sure why no vacuum…it could be
related to the air leak or the vacuum pump…<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>6.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>We have at least one spare of everything…and are
willing to try some things to get this system operational.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>7.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Both machines were taken out of service at about the
same time…and haven’t been operated in years. One machine
(the one we are working on) has 3200 hours on the machine…the other has
about 5000 hours (the one that has the air leak).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any TR-600 experts interested in coming here to help?
We could discuss reimbursement for your time and travel.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Please call me at 800-978-3445 or email me any thoughts that
might be helpful (I.e. things to check/test/look for, etc.).<o:p></o:p></p>
<p class=MsoNormal><br>
Thanks;<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>John Walko<o:p></o:p></p>
<p class=MsoNormal>Media Archive Manager<o:p></o:p></p>
<p class=MsoNormal>Scene Savers<o:p></o:p></p>
<p class=MsoNormal><a href="http://www.scenesavers.com">www.scenesavers.com</a><o:p></o:p></p>
<p class=MsoNormal>800-978-3445<o:p></o:p></p>
<p class=MsoNormal>513-708-1474 (cell)<o:p></o:p></p>
<p class=MsoNormal>859-291-5100 (office)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>John Walko<o:p></o:p></p>
<p class=MsoNormal>Media Archive Manager<o:p></o:p></p>
<p class=MsoNormal>Scene Savers<o:p></o:p></p>
<p class=MsoNormal><a href="http://www.scenesavers.com">www.scenesavers.com</a><o:p></o:p></p>
<p class=MsoNormal>800-978-3445<o:p></o:p></p>
<p class=MsoNormal>513-708-1474 (cell)<o:p></o:p></p>
<p class=MsoNormal>859-291-5100 (office)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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