[TechAssist] Re: RCA CTC-131 Chassis DOA
- From: "teltek2" <teltek2@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 13 Dec 2002 22:16:24 -0500
Nope...you misunderstand. I do not need any info on the CTC131, but David
Lessard does.
So send him what you have, I already sent him a PDF on the Chopper circuit,
but I think he requires more.
Thanks..
-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek2@xxxxxxxxxxxx
----- Original Message -----
From: <HSWAD@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 13, 2002 9:57 PM
Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> Yes, I was as soon as I can get my hands on it. Is he getting you the full
> schematic? If so I'll back off. If not ,let me know and I'll get it asap.
> Hollis Bates, Field Engineer-retired
> In a
> message dated 12/13/02 9:19:59 PM Eastern Standard Time,
teltek2@xxxxxxxxxxxx
> writes:
>
>
> > Subj:[TechAssist] Re: RCA CTC-131 Chassis DOA
> > Date:12/13/02 9:19:59 PM Eastern Standard Time
> > From:<A HREF="mailto:teltek2@xxxxxxxxxxxx";>teltek2@xxxxxxxxxxxx</A>
> > Reply-to:<A
HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> > To:<A
HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> > Sent from the Internet
> >
> >
> >
> >
> > Hollis;
> > Your not trying to give me the infom are you.
> > I think Dave Lessard is looking for it.
> >
> > -Ed-
> > Tel-Tek Electronics
> > Ontario-Canada
> >
> > teltek2@xxxxxxxxxxxx
> > ----- Original Message -----
> > From: <HSWAD@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, December 13, 2002 5:59 PM
> > Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> >
> >
> > > I dialed 613 525 4502 to give you information on the 131 and 130. No
> > one
> > > there has any idea who you are. Can you clear this up for me?Hollis
> > Bates,
> > > Field Engineer-retired
> > > In a message
> > dated
> > > 12/13/02 3:23:17 PM Eastern Standard Time, teltek2@xxxxxxxxxxxx
writes:
> > >
> > >
> > > > Subj:[TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > Date:12/13/02 3:23:17 PM Eastern Standard Time
> > > > From:<A HREF="mailto:teltek2@xxxxxxxxxxxx";>teltek2@xxxxxxxxxxxx</A>
> > > > Reply-to:HREF="mailto:techassist@xxxxxxxxxxxxx";>
> > techassist@xxxxxxxxxxxxx
> > > > To:HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx
> > > > Sent from the Internet
> > > >
> > > >
> > > >
> > > >
> > > > That was the schematic for the CTC131 Chopper circuit.
> > > >
> > > > -Ed-
> > > > ----- Original Message -----
> > > > From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Friday, December 13, 2002 9:38 AM
> > > > Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > >
> > > >
> > > > >
> > > > > Ed,
> > > > >
> > > > > I apologize, it's attached to the email you sent, trouble shooting
> > > > flowchart
> > > > > for a dead CTC131. You don't happen to have a schematic :-).
> > > > >
> > > > > Thanks in advance,
> > > > >
> > > > > David Lessard
> > > > > mrfixit@xxxxxxxxxxx
> > > > > (613)525-4502
> > > > >
> > > > > -----Original Message-----
> > > > > From: techassist-bounce@xxxxxxxxxxxxx
> > > > > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Ed Gaidies
> > > > > Sent: Friday, December 13, 2002 7:58 AM
> > > > > To: techassist@xxxxxxxxxxxxx
> > > > > Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > >
> > > > >
> > > > >
> > > > > I sent it to you...the same day in PDF format. Let me know if you
> > > > > didn't get it, I will send it again. Sorry...David, have next to
> > > > > nothing on Philips or Magnavox.
> > > > >
> > > > > -Ed-
> > > > > On Friday, December 13, 2002, at 12:02 AM, David Lessard wrote:
> > > > >
> > > > > >
> > > > > > Ed,
> > > > > >
> > > > > > No schematics received. Please send it when you have the time.
Do
> > you
> > > > > > have
> > > > > > anything on Phillips PK-4485, chassis 25P1-02.
> > > > > >
> > > > > > Thanks in advance.
> > > > > >
> > > > > > David Lessard
> > > > > > mrfixit@xxxxxxxxxxx
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: techassist-bounce@xxxxxxxxxxxxx
> > > > > > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Edward
Gaidies
> > > > > > Sent: Tuesday, December 10, 2002 4:27 PM
> > > > > > To: techassist@xxxxxxxxxxxxx
> > > > > > Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > > >
> > > > > >
> > > > > >
> > > > > > Ok..I'll scan it after supper, and send it PDF.
> > > > > >
> > > > > > -Ed-
> > > > > > ----- Original Message -----
> > > > > > From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Tuesday, December 10, 2002 4:16 PM
> > > > > > Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > > >
> > > > > >
> > > > > >>
> > > > > >> Ed,
> > > > > >>
> > > > > >> Nothing yet! I really must look into this beast. Please email
me
> > > > > >> whatever
> > > > > >> you can spare sir.
> > > > > >>
> > > > > >> Thanks,
> > > > > >>
> > > > > >> David Lessard
> > > > > >> mrfixit@xxxxxxxxxxx
> > > > > >> (613)525-4502
> > > > > >>
> > > > > >> -----Original Message-----
> > > > > >> From: techassist-bounce@xxxxxxxxxxxxx
> > > > > >> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Edward
> > Gaidies
> > > > > >> Sent: Tuesday, December 10, 2002 4:07 PM
> > > > > >> To: techassist@xxxxxxxxxxxxx
> > > > > >> Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > > >>
> > > > > >>
> > > > > >>
> > > > > >> David;
> > > > > >> Did you get anything on the CTC131 yet?
> > > > > >> I may have found something I can email you, let me know.
> > > > > >>
> > > > > >> -Ed-
> > > > > >> ----- Original Message -----
> > > > > >> From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> > > > > >> To: <techassist@xxxxxxxxxxxxx>
> > > > > >> Sent: Tuesday, December 10, 2002 12:50 PM
> > > > > >> Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > > >>
> > > > > >>
> > > > > >>>
> > > > > >>> Hollis,
> > > > > >>>
> > > > > >>> Whoops, the model number I sent you earlier (FPR710TR -
CTC130)
> > was
> > > > > >>> for
> > > > > > a
> > > > > >>> different repair job, it was DOA, repaired several cold solder
> > > > > >>> joints,
> > > > > > got
> > > > > >>> it up and running but with only a 6" viewable area dead
center,
> > > > > >>> tearing
> > > > > > on
> > > > > >>> the right side. Something in the vertical deflection circuit,
I
> > > > > >>> really
> > > > > >>> haven't had the time to investigate this much further. Any
> > thoughts?
> > > > > >>>
> > > > > >>> The model I meant to send you (for CTC131 chasssis) is
FLR2023S,
> > > > > >>> this is
> > > > > >> the
> > > > > >>> dead one, never powered up after a normal shut down.
> > > > > >>>
> > > > > >>> Thanks.
> > > > > >>>
> > > > > >>> David Lessard
> > > > > >>> mrfixit@xxxxxxxxxxx
> > > > > >>> (613)525-4502
> > > > > >>>
> > > > > >>> -----Original Message-----
> > > > > >>> From: techassist-bounce@xxxxxxxxxxxxx
> > > > > >>> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of
> > HSWAD@xxxxxxx
> > > > > >>> Sent: Tuesday, December 10, 2002 9:27 AM
> > > > > >>> To: techassist@xxxxxxxxxxxxx
> > > > > >>> Subject: [TechAssist] Re: RCA CTC-131 Chassis DOA
> > > > > >>>
> > > > > >>>
> > > > > >>> Do you have a microfiche machine? If so I have the service
> > literature
> > > > > > for
> > > > > >>> that chassis . Would be glad to mail it to you and when your
> > finished
> > > > > > you
> > > > > >>> could mail it back. If you are interested just give me the
first
> > > > > >>> number
> > > > > > of
> > > > > >>> the serial number to indicate the year.In any case I will scan
> > the
> > > > > >>> fixes
> > > > > > I
> > > > > >>> have on that chassis and e-mail them to you. Hollis Bates,
Field
> > > > > >>> Engineer-retired.
> > > > > >>> In a message dated 12/9/02 8:46:00 PM Eastern
Standard
> > Time,
> > > > > >>> mrfixit@xxxxxxxxxxx writes:
> > > > > >>>
> > > > > >>>
> > > > > >>>> Subj:[TechAssist] RCA CTC-131 Chassis DOA
> > > > > >>>> Date:12/9/02 8:46:00 PM Eastern Standard Time
> > > > > >>>> From:<A
HREF="mailto:mrfixit@xxxxxxxxxxx";>mrfixit@xxxxxxxxxxx</A>
> > > > > >>>> Reply-to:> >>> HREF="mailto:techassist@xxxxxxxxxxxxx";>
> > > > techassist@xxxxxxxxxxxxx
> > > > > >>>> To:> >>
> > HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@freelist
> > > > s.org
> > > > > >>>> Sent from the Internet
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Fellow Technicians,
> > > > > >>>>
> > > > > >>>> I know! It's practically an antique, but this is a learning
> > thing.
> > > > > >>>> I'm
> > > > > >>>> having some difficulties figuring out how the standby PS
works.
> > The
> > > > > >> thing
> > > > > >>>> is
> > > > > >>>> dead, so where do I start? There are no burnt fuses or
> > resistors,
> > > > > >>>> HOT
> > > > > > is
> > > > > >>>> intact, no obvious cold solder joints. The standby PS
> > transformer
> > is
> > > > > >>>> working, feeding the shielded micro PCB, I find voltages in
> > there,
> > > > > >>>> not
> > > > > >>> sure
> > > > > >>>> what I'm looking for though. Managed to indentify one out of
the
> > > > > >>>> four
> > > > > >> IC's
> > > > > >>>> in there, 1716-2 bandswitching IC, the others are 1775-2,
1720-5
> > and
> > > > > >>>> 1773-3.
> > > > > >>>> If I new what the pinouts were that would be a start. A
better
> > > > > >>>> understanding
> > > > > >>>> of the startup sequence would certainly be very helpful. What
> > makes
> > > > > > the
> > > > > >>>> chopper (regulator) circuit start? Relay via micro? I guess I
> > was
> > > > > >>>> born
> > > > > >>> just
> > > > > >>>> a little too late to really appreciate the engineering that
went
> > in
> > > > > >>>> to
> > > > > >>> this
> > > > > >>>> baby. OK, I'm being nice :-) I'm sure over the years many
> > > > > >>>> technicians
> > > > > >>>> cursed
> > > > > >>>> the design. Not a very easy chassis to work on, everthing is
> > > > > > everywhere
> > > > > >>> and
> > > > > >>>> difficult to get at. I'm thinking about making a wiring jig
so I
> > can
> > > > > >> plop
> > > > > >>>> the board around.
> > > > > >>>>
> > > > > >>>> Block diagrams, schematic, anything would greatly be
> > appreciated.
> > > > > >>>>
> > > > > >>>> David Lessard
> > > > > >>>> mrfixit@xxxxxxxxxxx
> > > > > >>>> Alexandria Electronics
> > > > > >>>> 50 Harrison Street
> > > > > >>>> Alexandria, Ontario
> > > > > >>>> K0C-1A0
> > > > > >>>> (613)525-4502
> > > > > >>>>
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> > > > > teltek2@xxxxxxxxxxxx
> > > > >
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