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<div>Shai</div>
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<div>Don't swap the board at this time. The compatibility may be an issue.</div>
<div><br>
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<div>The following needs verification by an AMPEX person.</div>
<div><br>
</div>
<div>Here are some hints about board compatibility. </div>
<div>Boards have an assembly number on them. It then ends in a -xx number with possibly a letter following these two digits.</div>
<div><br>
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<div>I was told that if the board has the same assembly number before the dash it is okay to swap. The dash xx is the version of the artwork. The letter following will be a revision to parts on the same artwork.</div>
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<div>If the assembly number is different, then the board is not plug compatible. There is a wiring change to the plug or harness. </div>
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<div><b><u>THIS MEANS SMOKE MAY COME OUT OF THE MACHINE!</u></b></div>
<div><br>
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<div>Everyone is saying the same thing. Get the machine working in basic modes before these wild crazy ideas of swapping assemblies or boards. You will only dig the grave for the machine by doing the swaps. There are way too many subtle difference between machines that you will not know unless you have very good documentation and all service notes from AMPEX including FEBs and parts changes. I do not know them. I have a short list and that is it. The documentation that I have is for the near the end of the B versions. I do have a short list of FEBs in a training manual but that does not cover everything. There were special kits that were available to fix problems in editing. I had to put these in. But they were not listed on the FEBs so it is be careful.</div>
<div><br>
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<div>Chris<br>
</div>
<div><b></b><u></u><br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Shai Drori <shayke888@gmail.com><br>
To: OldVTRS <OldVTRS@groups.io><br>
Sent: Tue, Jan 30, 2018 4:52 pm<br>
Subject: Re: [OldVTRS] VR-1200 update<br>
<br>
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<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif">Disregard last post. After posting gmail notified me of new replies and after reading them I think the best course of action would be to swap board 12 and see what happens, and if all is well add auto chroma later. The B machine is not a machine anymore. I had to move 18 months ago and had to disassemble the B machine. I didn't know that the other machine en route is an A, thought it was another B. So I have an A machine and lots of spares from a B machine. </div>
<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif">I'm not so good at trouble shooting electronics myself. I have the equipment and some know how but not enough to know what to look for. I now know it's heat induced so can look further with all your help. Tip projection is always done manually here unless there are special circumstances. </div>
<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif"><br>
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<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif">As for the shoe being to close or too far, I was under the impression that the shoe can only be in the right spot if I have no curvature of the picture. I check for that with both monitoring the demod out where I can see the actual error and by looking at the Amtec error that shows a flat line instead for a hill or dale, when the shoe is in the right place. Am I wrong?</div>
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<div dir="rtl">בברכה,</div>
<div dir="rtl">שי דרורי. 0544-470-420</div>
<div dir="rtl">מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ</div>
<div>Cheers<br>
Shai Drori<br>
</div>
Expert digitization services for Audio Video<br>
3K scanning for film 8mm-35mm<br>
</div>
<div>Timeless Recordings Music Label</div>
<a href="http://www.audiovideofilm.com" target="_blank" rel="noopener noreferrer">www.audiovideofilm.com</a><br>
</div>
<div><a href="mailto:shayke888@gmail.com" target="_blank" rel="noopener noreferrer">shayke888@gmail.com</a><br>
</div>
</div>
<div>Tripadvisor level 5 contributor, level 10 restaurant expert</div>
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<div class="aolmail_gmail_quote">On Tue, Jan 30, 2018 at 11:41 PM, Shai Drori <span dir="ltr"><<a href="mailto:shayke888@gmail.com" target="_blank" rel="noopener noreferrer">shayke888@gmail.com</a>></span> wrote:<br>
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<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif">Hi guys</div>
<div class="aolmail_gmail_default" style="font-family:tahoma,sans-serif">If by guide you mean tip projection it's always in manual mode. Tomorrow I'll switch the sigsys chassi and see what happens. The other one has auto chroma as well, but I'll leave it out for now. </div>
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<div dir="rtl">בברכה,</div>
<div dir="rtl">שי דרורי. 0544-470-420</div>
<div dir="rtl">מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ</div>
<div>Cheers<br>
Shai Drori<br>
</div>
Expert digitization services for Audio Video<br>
3K scanning for film 8mm-35mm<br>
</div>
<div>Timeless Recordings Music Label</div>
<a href="http://www.audiovideofilm.com" target="_blank" rel="noopener noreferrer">www.audiovideofilm.com</a><br>
</div>
<div><a href="mailto:shayke888@gmail.com" target="_blank" rel="noopener noreferrer">shayke888@gmail.com</a><br>
</div>
</div>
<div>Tripadvisor level 5 contributor, level 10 restaurant expert</div>
</div>
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<div class="aolmail_gmail_quote">On Tue, Jan 30, 2018 at 6:28 PM, Don <span dir="ltr"><<a href="mailto:groups@digitrakcom.com" target="_blank" rel="noopener noreferrer">groups@digitrakcom.com</a>></span> wrote:<br>
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<div>Hi Shai</div>
<div> </div>
<div>Yes, the guide servo amp is as you describe, but that’s likely not the
problem. Please see the replies from myself and from Chris. We both
suggest that you look at Board 12 in the signal system. That is what is
controlling the guide servo. If it works when cold, then I’d suspect a
transistor failure. Once it has heated up and failed, you can easily go
thru it with a scope and find the problem. </div>
<span>
<div> </div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Arial';COLOR:#000000">Don
Norwood<br>
Digitrak Communications, Inc.<br>
<a href="http://www.digitrakcom.com" target="_blank" rel="noopener noreferrer">www.digitrakcom.com</a></div>
</span>
<div style='FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline'>
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<div> </div>
<div style="BACKGROUND:#f5f5f5">
<div><b>From:</b> <a title="shayke888@gmail.com">Shai
Drori</a> </div>
<div><b>Sent:</b> Tuesday, January 30, 2018 8:25 AM</div>
<div><b>To:</b> <a title="OldVTRS@groups.io">OldVTRS@groups.io</a> </div>
<span>
<div><b>Subject:</b> Re: [OldVTRS] VR-1200 update</div>
</span></div>
</div>
<div> </div>
</div>
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<div class="aolmail_gmail_default" style="FONT-FAMILY:tahoma,sans-serif">Latest update.
Today I decided to just turn Big Berta on and see what happens. Hit play and got
V and H lock in about one second. Nice steady picture (Amtec going crazy but
I'll set up that when I'm done with the basics). After about 9 minutes when
things warmed up the relay started going again. This is the servo amplifier that
is on the left side back of the machine. </div>
</div>
<div class="aolmail_gmail_extra">
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<div dir="rtl">בברכה,</div>
<div dir="rtl">שי דרורי. 0544-470-420</div>
<div dir="rtl">מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ</div>
<div>Cheers<br>
Shai Drori<br>
</div>
Expert digitization services for Audio
Video<br>
3K scanning for film 8mm-35mm<br>
</div>
<div>Timeless Recordings Music Label</div>
<a href="http://www.audiovideofilm.com" target="_blank" rel="noopener noreferrer">www.audiovideofilm.com</a><br>
</div>
<div><a>shayke888@gmail.com</a><br>
</div>
</div>
<div>Tripadvisor level 5 contributor, level 10 restaurant
expert</div>
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<div class="aolmail_gmail_quote">On Tue, Jan 30, 2018 at 4:06 AM, Don <span dir="ltr"><<a>groups@digitrakcom.com</a>></span> wrote:<br>
<blockquote class="aolmail_gmail_quote" style="BORDER-RIGHT:#ccc 1px solid;PADDING-LEFT:1ex;BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0.8ex;PADDING-RIGHT:1ex">
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<div>Shai</div>
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<div>The control for the guide servo, both activation and error signal, comes
from Module 12 (Sync Proc) in the signal system. I assume that the relay
you are referring to is K2 on the guide servo chassis. With the front
panel guide mode switch set to Auto, the illumination level of the Auto switch
cap should change between bright and dim as the K2 relay is changing.
You should verify the proper setup of the Signal System (NOT Servo)
module 12 and repair if needed. There is no warning light for the lock
status of Bd 12 other than the proper functioning of the guide servo Auto
mode.</div>
<div> </div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Arial';COLOR:#000000">Don
Norwood<br>
Digitrak Communications, Inc.<br>
<a href="http://www.digitrakcom.com" target="_blank" rel="noopener noreferrer">www.digitrakcom.com</a></div>
</span>
<div style='FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline'>
<div style="FONT:10pt tahoma">
<div> </div>
<div style="BACKGROUND:#f5f5f5">
<div><b>From:</b> <a title="shayke888@gmail.com">Shai Drori</a> </div>
<span>
<div><b>Sent:</b> Monday, January 29, 2018 5:50 PM</div>
<div><b>To:</b> <a title="OldVTRS@groups.io">OldVTRS@groups.io</a> </div>
</span>
<div><b>Subject:</b> [OldVTRS] VR-1200 update</div>
</div>
</div>
<div> </div>
</div>
<span>
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<div class="aolmail_gmail_default" style="FONT-FAMILY:tahoma,sans-serif">I was asked
privately how the vr-1200 project was progressing and it wasn't. I was busy.
Today, after my client asked when will he get more material I decided I can't
put this off anymore and started to setup Big Bertha (yes I gave her a name to
go with her annoying personality). The whole day was spent with no apparent
results. Setup was going according to the list and all checked out but no
picture. Finally, with the online help from Larry Odham, I figured out that
capstan osc was way way way off. </div>
<div class="aolmail_gmail_default" style="FONT-FAMILY:tahoma,sans-serif">So now I have
horizontal lock, but the relay in the Honeywell solid state servo amplifier
keep kicking at a rate of about 3 kicks every two seconds. No warning lights
on panel though. Any ideas?</div>
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<div dir="rtl">בברכה,</div>
<div dir="rtl">שי דרורי. 0544-470-420</div>
<div dir="rtl">מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ</div>
<div>Cheers<br>
Shai Drori<br>
</div>
Expert digitization services for Audio
Video<br>
3K scanning for film 8mm-35mm<br>
</div>
<div>Timeless Recordings Music Label</div>
<a href="http://www.audiovideofilm.com" target="_blank" rel="noopener noreferrer">www.audiovideofilm.com</a><br>
</div>
<div><a>shayke888@gmail.com</a><br>
</div>
</div>
<div>Tripadvisor level 5 contributor, level 10 restaurant
expert</div>
</div>
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