[TechAssist] Re: Sony Beta SL-25-distorted p/b video, intermittent
- From: Jack <lightwizard_2000@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 16 Jan 2002 21:21:26 -0800 (PST)
If you take your scope and place one probe on your
test point on the video head amp and trigger it with
vertical, you will not see video at all, but rf. You
will see 2 envelopes next to each other on the scope
screen. Adjust the tape path so they are both about
the same amplitude and as even as possible. This
should be done after an upper cylinder is replaced.
Only takes a couple of minutes if you practice it for
a while. It makes for a good repair and will make you
a better tech. *S*
--- Jeff Dougherty <jeff@xxxxxxxxxxxxxxxxxx> wrote:
>
> If I could get it to act up long enough, I would
> check that.
> The only time my video was poor, was when the
> customer was here. He
> left, I came to the unit a few hours later and it
> worked fine.
> I see portions of the video, raised up and really
> jumpy.
> I will remove the cylinder tomorrow. Maybe there is
> some debris that got
> in there.
>
> Jeff
>
> Intrepid Video & Electronics
> 501 Luther Rd
> Harrisburg PA 17111 (FAX)1-413-280-0677
> www.intrepid-video.com www.tech-repair.net
> www.thetoolcaddy.com
> mailto:jeff@xxxxxxxxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf
> Of Jack
> Sent: Wednesday, January 16, 2002 10:52 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Sony Beta SL-25-distorted
> p/b video,
> intermittent
>
>
> What does the rf envelope look like on the scope?
>
> Jack
>
>
> --- Jeff Dougherty <jeff@xxxxxxxxxxxxxxxxxx> wrote:
> >
> >
> > I thought I had this repaired. Replaced video
> heads,
> > took everything
> > apart and cleaned. Tested unit and thought all was
> > OK.
> > Came back next day, poor playback video like the
> > guides are way off.
> > After a few adjustments the video was fine. Called
> > the customer to pick
> > up, when I tested the unit in front of him, it
> acted
> > up again, very
> > embarrassing.
> > Every time I have recorded something, it has
> played
> > back fine. I am
> > having trouble getting it to act up long enough to
> > troubleshoot.
> > Has anyone run into this before?
> > Thank you.
> > Jeff
> >
> > Intrepid Video & Electronics
> > 501 Luther Rd
> > Harrisburg PA 17111 (FAX)1-413-280-0677
> > www.intrepid-video.com www.tech-repair.net
> > www.thetoolcaddy.com
> >
> >
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>
> =====
> Electronic Wizards
> 535 North Woodlawn
> Suite 350
> Wichita, Kansas 67208
> 316-686-8324
> 316-686-4815 fax
>
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=====
Electronic Wizards
535 North Woodlawn
Suite 350
Wichita, Kansas 67208
316-686-8324
316-686-4815 fax
__________________________________________________
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