[TechAssist] Re: RCA Chipper Checker, first time user, help please

  • From: al <al@xxxxxxxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 22 Jul 2002 11:53:36 -0400

Careful Gary,
    Unless there is big bucks involved I have never seen a "pee job"that
worked out profitably.I have heard good reports of expensive boards that
were washed down with soap(dish detergent) and water and dried at low heat
in the oven. I think some of the parts like ic's and transformers were
removed first.Sounds like a LOT of work!
    In your case Gary,keep in mind the other shop was kissing the set good
bye,and may not have cared ,or even worse maybe screwed it up deliberately.
Good luck. al

Al Leatherman
alleathe@xxxxxxxxxxxxx
973-361-5796
Mine Hill, NJ. 07803
http://WWW.ALS-TV.NET
----- Original Message -----
From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, July 22, 2002 2:03 AM
Subject: [TechAssist] Re: RCA Chipper Checker, first time user, help please


>
> Thanks Al.
>
> All mechanical checks out fine, at least to the eye. Traces aren't
> corroded. A few of the IC's legs were but I've replaced them, except
> U1600 which I have on order now. This set was in another shop before I
> got it, because it was supposed to be covered under warranty but when it
> was determined the mouses were at it, they rejected the warranty claim.
> So I can see the other technician had done a fair amount of parts
> replacement in the power supply area, but not sure if he reinstalled all
> of the original parts or left some new ones in.
>
>
>
> Gary McCartney
>
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: number63 (at) inetsonic.com
>
>
>
>
>
> al wrote:
> >
> > Gary and all,
> >      I think mouse pee is not on the list of chipper checker uses.Is it
> > possible so many traces are rotted or cross corroded,that mechanical
repair
> > has to be done before using Chipper check.  al
> >
> > Al Leatherman
> > alleathe@xxxxxxxxxxxxx
> > 973-361-5796
> > Mine Hill, NJ. 07803
> > http://WWW.ALS-TV.NET
> > ----- Original Message -----
> > From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, July 20, 2002 6:34 PM
> > Subject: [TechAssist] RCA Chipper Checker, first time user, help please
> >
> > >
> > > I have my new Chipper Checker connected to a CTC178L projection set.
The
> > > set is dead because some mouses pee'd on the chassis (I mentioned this
> > > set a few months ago in case anyone remembers, but I only work on it
> > > when I'm caught up with customers items- it belongs to my buddy who is
> > > very patient).
> > >
> > > I installed the new eeprom and microprocessor kit before I got the
> > > Chipper Checker.
> > > Now with the Chipper Checker connected, I get error code 136, TVB
(tone/
> > > volume/ balance) which means U1503 is not communicating with the
> > > micrprocessor. Does this mean that U1503 or associated circuit is bad?
> > > I do have U1600 removed from the circuit (stereo decoder IC) so why
> > > doesn't Chipper Checker come up with error code 128 (no communication
> > > from U1600) ?
> > > How accurate is this Chipper Checker at determining faults?
> > >
> > >
> > > The basic problem with the set is that when remote power button is
> > > pressed, I get 3 chirps, then nothing. During these chirps, I get 120
V
> > > pulses B+ on the main 135V line, and I get a nice looking horizontal
> > > output waveform on the HOT collector. I have the flyback lead to the
HV
> > > splitter disconnected. I removed U1600 because of corrosion on the
pins.
> > > Replaced micro and eeprom because pins were corroded and thought that
> > > could be the problem with set not starting. I also have CRT boards
> > > unplugged from the tubes.
> > >
> > >
> > > Thanks for any help.
> > > --
> > >
> > >
> > >
> > > Gary McCartney
> > >
> > > McCartney Electronics
> > > 7134 Fife Rd, RR 7
> > > Guelph Ontario Canada N1H 6J4
> > > Fax: (519)821-1530
> > > email: number63 (at) inetsonic.com
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