[TechAssist] Re: RCA CTC 169 GM shutdown
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 13 Feb 2003 19:51:05 -0500
What does the voltage at the cathode of CR4118 measure under load?
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "harry fogarty" <snoopys2002@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, February 13, 2003 7:42 PM
Subject: [TechAssist] Re: RCA CTC 169 GM shutdown
>
> Had changed cr4118 diode.Same problem.
>
>
>
> Harry Fogarty, Prince Rupert Repairs, Prince Rupert,British Columbia
Canada
>
>
> >From: Robert Herring <tvservice@xxxxxxxxxxxxx>
> >Reply-To: techassist@xxxxxxxxxxxxx
> >To: techassist@xxxxxxxxxxxxx
> >Subject: [TechAssist] Re: RCA CTC 169 GM shutdown
> >Date: Thu, 13 Feb 2003 16:21:26 -0800 (PST)
> >
> >
> >Change CR4118 diode for +14 volt supply #164590
> >Robert
> >tvservice@xxxxxxxxxxxxx
> > harry fogarty <snoopys2002@xxxxxxxxxxx> wrote:
> >The model number on this set is F31221WN.This set seems to have an
> >intermiting problem.After i changed the leaky cap,the shutdown problem
seem
> >to be gone.Once it is unpluged again,itseems to be pulsesating
again.Thanks
> >for your help Jerry.I am just thinking if there is still some bad solder
in
> >there somewheres.I am gonna recheck the boards again to see.
> >
> >Harry Fogarty
> >Prince Rupert Repairs
> >Prince Rupert B.C.
> >Canada
> >
> >
> >
> >
> > >From: "Jerry"
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To:
> > >Subject: [TechAssist] Re: RCA CTC 169 GM shutdown
> > >Date: Thu, 13 Feb 2003 19:07:37 -0500
> > >
> > >
> > >Harry,
> > > Can you supply more details on this set. CTC169GM doesn't show up in
> > >the parts finder program. Is this a direct view or projection chassis?
> > >The
> > >model number would help. It's important to note that this power supply
> >has
> > >two modes of operation, standby and run. You should have +140 , +15 and
> >+7
> > >and the audio supply(s) in either standby or run mode. If the +140 is
> > >about
> > >right and the +15 is at least +12 volts in standby mode, the power
supply
> > >is
> > >probably OK.
> > >
> > >Jerry Eiting geiting@xxxxxxxxxx
> > >Christians Electronic Service
> > >Piqua, Ohio
> > >
> > >
> > >
> > >----- Original Message -----
> > >From: "harry fogarty"
> > >To:
> > >Sent: Thursday, February 13, 2003 6:31 PM
> > >Subject: [TechAssist] Re: RCA CTC 169 GM shutdown
> > >
> > >
> > >|
> > >| I found c143 leaking.Got 140 volts at the hot.I now hear a faint
> >bussing
> > >in
> > >| the powersupply, i beleive to be a bad diode.Still now sound no pix
> > >|
> > >| Harry Fogarty
> > >| Prince Rupert Repairs
> > >| Prince Rupert B.C.
> > >| Canada
> > >|
> > >| >From: "Jerry"
> > >| >Reply-To: techassist@xxxxxxxxxxxxx
> > >| >To:
> > >| >Subject: [TechAssist] Re: RCA CTC 169 GM shutdown
> > >| >Date: Thu, 13 Feb 2003 18:15:56 -0500
> > >| >
> > >| >
> > >| >Check the +15 volt supply, replace it's rect. diode CR4118 part
number
> > >| >164590. Also, if this is a projection set, check the hv dist. box
part
> > >| >number 205064. Other items would be the box caps off the HOT.
> > >| >Jerry Eiting geiting@xxxxxxxxxx
> > >| >Christians Electronic Service
> > >| >Piqua, Ohio
> > >| >
> > >| >
> > >| >----- Original Message -----
> > >| >From: "harry fogarty"
> > >| >To:
> > >| >Sent: Thursday, February 13, 2003 2:26 PM
> > >| >Subject: [TechAssist] RCA CTC 169 GM shutdown
> > >| >
> > >| >
> > >| >|
> > >| >|
> > >| >| I just got this rca in here.The customer complaint was it would
not
> > >come
> > >| >| on.when i put it on my bench,it came on right a way.I turned it
off
> > >for
> > >| >abit
> > >| >| and went to turn it on again it wouldn`t come back on.I had found
> >some
> > >| >bad
> > >| >| solder in the power supply and repaired it.The set then would
> > >pulsesate
> > >| >| about three times then would shutdown.I had changed the caps in
the
> > >| >| powersupply and now it would imediatly go to shutdown with out
> > >| >pulsesating.I
> > >| >| am hoping that someone had ran into this problem before tat could
> >give
> > >me
> > >| >| some hints what to look for.The customer lives on one of the
islands
> > >up
> > >| >here
> > >| >| and is going back there tomorrow and would like to take it back
with
> > >| >| them.All the help would be appreciated.
> > >| >|
> > >| >| Harry Fogarty
> > >| >| Prince Rupert Repairs
> > >| >| Prince Rupert B.C.
> > >| >| Canada
> > >| >|
> > >| >|
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