[TechAssist] Re: Fw: ctc185a5 chassis

  • From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sat, 17 Nov 2001 03:35:31 -0500

Good point Dennis , using the RF alignment procedure may very well identify
the actual circuit within the tuner causing the problem that I forgot the
fix to.

Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Dennis Viereck" <wa6ati@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, November 16, 2001 10:08 AM
Subject: [TechAssist] Re: Fw: ctc185a5 chassis


>
> I would probably agree with Damons ideas that Alignment might not be the
"Silver
> Bullet". Check the alignment first by checking all channel groups. They
should
> have the same sensitivity on all channels. Adjust the output of you
generator
> for a signal level that gives you a partial snow picture.
>
> But if someone swapped the EEPROM in it life and never aligned it, you
will have
> to. You can tell this happened because all the values are 31. Or if the
EEPROM
> was stuffed with alignment data from another CTC185, you will still have
to
> align it anyway.
>
> Dennis Viereck
>
> Damon wrote:
>
> > Doggone it Al,
> > I HAVE SEEN YOUR PROBLEM.......
> > But I don't remember the fix.....
> > I know what it isn't.....
> > Alignment is not it
> >
> > Leaky bandswitching transistors??? Flaky Mixer/If Ic???
> > Leaky varactor diode??
> > Like sands through the hourglass, so are the tips in our lives....
> >
> > I gotta find R Vogelpohl's E-mail address....he'd know this.
> >
> > Damon Brunger
> > damon101@xxxxxxxxxxxxxx
> > Telrad Electronic Services
> > Ft Wayne, IN 46815
> > ----- Original Message -----
> > From: <HSWAD@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, November 15, 2001 6:15 PM
> > Subject: [TechAssist] Re: Fw: ctc185a5 chassis
> >
> > >
> > > In a message dated 11/15/01 1:21:00 PM Eastern Standard Time,
ampm@xxxxxxx
> > > writes:
> > >
> > > << : ctc185a5 chassis
> > >  Date:  11/15/01 1:21:00 PM Eastern Standard Time
> > >  From:  ampm@xxxxxxx (albert marquardt)
> > >  Sender:    techassist-bounce@xxxxxxxxxxxxx
> > >  Reply-to:  techassist@xxxxxxxxxxxxx
> > >  To:    techassist@xxxxxxxxxxxxx
> > >
> > >
> > >  jeff, haven't done an alignment yet the instructions say anntenuate
the
> > >  signal properly. what exactly are they talking about as properly.call
me
> > >  dumb but i never got into anything like this before. i have sencore
> > >  equipment vg91.can vary signal but what are signal levels supposed to
be.
> > >  thanks
> > >  al marquardt
> > >  ampm@xxxxxxx
> > >  ----- Original Message -----
> > >  From: Shoreline Electronics <jstielau@xxxxxxxx>
> > >  To: <techassist@xxxxxxxxxxxxx>
> > >  Sent: Thursday, November 15, 2001 5:19 AM
> > >  Subject: [TechAssist] Re: Fw: ctc185a5 chassis
> > >
> > >
> > >  >
> > >  > The tuner alignments may have gotten corrupted for that
area......you
> > may
> > >  > need to do an alignment.
> > >  >
> > >  >
> > >  >
> > >  > Jeff Stielau
> > >  > Shoreline Electronics Repair
> > >  > 125 Beechtree Lane
> > >  > Westbrook,CT 06498
> > >  > 860-399-1861 Voice
> > >  > 860-664-3535 Fax
> > >  > jstielau@xxxxxxxx
> > >  >
> > >  > ----- Original Message -----
> > >  > From: "albert marquardt" <ampm@xxxxxxx>
> > >  > To: <techassist@xxxxxxxxxxxxx>
> > >  > Sent: Thursday, November 15, 2001 11:14 AM
> > >  > Subject: [TechAssist] Re: Fw: ctc185a5 chassis
> > >  >
> > >  >
> > >  > >
> > >  > > tryingm this one more time read below
> > >  > > al marquardt
> > >  > > ampm@xxxxxxx
> > >  > > ----- Original Message -----
> > >  > > From: albert marquardt <ampm@xxxxxxx>
> > >  > > To: <techassist@xxxxxxxxxxxxx>
> > >  > > Sent: Wednesday, November 14, 2001 8:21 AM
> > >  > > Subject: [TechAssist] Fw: ctc185a5 chassis
> > >  > >
> > >  > >
> > >  > > >
> > >  > > >
> > >  > > > al > > problem being assoctiated whit tuner wrap problem.
haven't
> > >  heard
> > >  > of
> > >  > > only 4
> > >  > > > > channels being affected. thanks
> > >  > > > > al marquardtmarquardt
> > >  > > > ampm@xxxxxxx
> > >  > > > ----- Original Message -----
> > >  > > > From: albert marquardt <ampm@xxxxxxx>
> > >  > > > To: <techassist@xxxxxxxxxxxxx>
> > >  > > > Sent: Tuesday, November 13, 2001 2:53 PM
> > >  > > > Subject: [TechAssist] ctc185a5 chassis
> > >  > > >
> > >  > > >
> > >  > > > >
> > >  > > > > not looked at yet but here's the complaint. ch 40 nothing ch
41
> > >  works
> > >  > > once
> > >  > > > > in a while. 42ok when coming back from 43.ch 39 lines in
picture.
> > oh
> > >  > ch
> > >  > > 41
> > >  > > > > has a motor boat sound i heard over the phone. did anyone
hear of
> > >  this
> > >  > >
> > >  > > > > ampm@xxxxxxx
> > >  > > > >
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> > > <025101c16dd8$39131540$22203ccc@shorelineelect>
> > >  Subject: [TechAssist] Re: Fw: ctc185a5 chassis
> > >  Date: Thu, 15 Nov 2001 13:19:02 -0800
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> > >   >>
> > > It means to use only as small a signal as necessary so that you dont
> > overload
> > > the circuitry thus causing the adjustments to be too broad. Hollis
> > > *****************************************
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