[TechAssist] Re: Panasonic CT-32HC43G Wont turn on
- From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 27 Feb 2005 06:02:53 -0600
If you cannot see the burnt carbon trace then--time is the test. Just for
verification--I am not talking about the crt socket. I am talking about the
little white plastic device that slides over the crt pins ON the crt
itself--nothing to do with the crt module. The pin guide. I think its
intention is to keep the pins from getting bent at the base and cracking the
glass. I use an exacto to cut into the existing silicone, then 2 small flat
blades to pry it off very carefully/slowly. It'll come--dont force it.
Clean it with the same small flat blade--both crt and guide. Then resilicone
like I said in the previous post
TV Doctor
Avalon, Wi.
----- Original Message -----
From: "Shaun" <satguy@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, February 27, 2005 1:10 AM
Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> Just out of curiosity what is the test for this? If you remove the crt
> socket and try to turn on the one's you have worked on will the set come
on
> and stay on with high voltage? I removed the pin guide socket and see no
> signs of arcing on the socket or the neck of the crt, but I will replace
the
> silicone and see what happens although on the set I am working on I
removed
> the crt socket and placed the flyback crt anode in a ceramic cup and the
set
> still goes into shutdown and I have to remove power to get it to try to
> power up again each time.
>
> Shaun
> Advanced Electronics
> Fort Morgan, CO 80701
>
> satguy@xxxxxxxxxxxxx
> ----- Original Message -----
> From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, February 26, 2005 7:06 PM
> Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
>
>
> > I posted the fix before and didnt see if you had tryed it. I just got
> > another one yesterday---and the pisser is that I just put a new crt in
it
> > the friday before. The usual symptom (and this one had a slightly
> different
> > symptom) is that the tv shuts off and will not turn back on till you
> unplug
> > it. The symptom on the set I did yesterday was that it would snap and
> then
> > they couldn't control the volume until they unplugged and replugged it.
> >
> > The cure was to carefully remove the pin guide on the crt--remove all of
> the
> > old silicone and replace the silcone. I take a swab stick cut at an
angle
> > to get the new silicone between the pins so there is no possibility of
> > another gap. I believe I've done 4 of them now and 2 of them had
visible
> > burt carbon traces and this brand new one had an in your face
> trace---after
> > one stinking week. All four were 32" sets allthough I understand it may
> also
> > effect 36" sets too. This last set with the brand new crt was the only
one
> > that the customer described snapping and visible light coming from the
> back
> > of the set. The rest was usaully where they turned it off--and it would
> not
> > come back on.
> >
> > TV Doctor
> > Avalon, Wi
> > ----- Original Message -----
> > From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, February 26, 2005 6:59 PM
> > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> >
> >
> > > This set looks like new still inside, no leaking on any caps and no
> black
> > > residue anywhere. Found this on the TechAssist website but the cap in
my
> > set
> > > is good.
> > >
> > > 38.) Bob Hibbard, Make: Panasonic, Model: CT36HX41E, Chassis CT32HX41,
> > > Problem: Set intermittently shuts down. Must unplug to turn on again.,
> > > Cure: C524 (.22uf 100V) in the ABL circuit shorted (no ABL operation
> > causing
> > > shutdown) Replace with .22uf 250V device to prevent repeat failure.
RJH
> > > I am at a loss on this set I remember at one time someone tried to
> > download
> > > the schematic but it didn't work so it was taken off maybe they can
try
> to
> > > upload it again. Leonard Caillouet told me the file name was
> > > CT-32HC43G_SIMP.zip in the downloads area. I am thinking the problem
is
> in
> > > the ABL or x-ray protect area but I need the schematic and this is a
> shop
> > > set so trying to keep the cost down since I already put in a new
> flyback.
> > >
> > > Advanced Electronics
> > > Fort Morgan, CO 80701
> > >
> > > satguy@xxxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Saturday, February 26, 2005 4:16 PM
> > > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> > >
> > >
> > > > Have seen similar problems like described in other sets due to caps
> that
> > > > leaked electrolyte due to a power surge. I too thought it was a bad
> > > flyback,
> > > > but there was HV or at least some of it partially at times when the
> set
> > > was
> > > > attempted to power up. The flashing LED is a common association with
> the
> > > bad
> > > > caps too.
> > > >
> > > > Look for swelled domes on electrolytics, or green residue on the
> > negative
> > > > leeds on the electrolytics around the flyback, and the STR
regulators
> > (if
> > > > any) in this set.
> > > > Additionally , turn over the PCB, and on the foil , look for BLACK
> > > > discoloration on the foil. If you find any, I bet it corresponds
with
> > the
> > > > negative leeds on an electrolytic. If any cap looks like it has
leaked
> > > > electrolyte , replace it of course. This set you have is too new for
> the
> > > > caps to have dried out so quick. Power surges, lightning storms etc
> > tend
> > > to
> > > > make SMPS electrolytics 'pee' or leak out the electrolyte when the
AC
> > line
> > > > frequency becomes erratic or unstable.
> > > >
> > > > Steve Hearns
> > > > Technotronic Dimensions, NY [USA]
> > > > WWW.TECHNOTRONIC-DIMENSIONS.COM
> > > > 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> > > > E-Mail: Steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Saturday, February 26, 2005 4:58 PM
> > > > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> > > >
> > > >
> > > > OK back to this monster, I replaced the flyback (TXFFTO3GSER)
original
> > > part
> > > > and it still will not come on. When power is pushed I hear a couple
> > clicks
> > > > and then sounds like it is going to come then goes into shut down
and
> > the
> > > > front led blinks 5 times. I have checked diodes and caps but have
> found
> > no
> > > > bad parts. Does anyone have a service manual or any other tips on
this
> > > > model?
> > > >
> > > > Shaun
> > > >
> > > > Advanced Electronics
> > > > 224 West Riverview Ave.
> > > > Fort Morgan, CO 80701
> > > > ----- Original Message -----
> > > > From: "tvservice" <tvservice@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Wednesday, August 18, 2004 3:05 PM
> > > > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> > > >
> > > >
> > > > > I rang with Sencore LC75 but can't remember the number of rings it
> > had.
> > > I
> > > > > believe it was questionable like the RCA flybacks
> > > > > Robert
> > > > > tvservice@xxxxxxxxxxxxx
> > > > > H & H Electronics Inc
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Wednesday, August 18, 2004 2:46 PM
> > > > > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> > > > >
> > > > >
> > > > > > Did you just replace it or did you ring the flyback?
> > > > > >
> > > > > > Shaun
> > > > > >
> > > > > > Advanced Electronics
> > > > > > 224 West Riverview Ave.
> > > > > > Fort Morgan, CO 80701
> > > > > > ----- Original Message -----
> > > > > > From: "tvservice" <tvservice@xxxxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Wednesday, August 18, 2004 1:35 PM
> > > > > > Subject: [TechAssist] Re: Panasonic CT-32HC43G Wont turn on
> > > > > >
> > > > > >
> > > > > > > Have seen several bad flybacks in that model causing that
> symptom
> > > > > > > flyback T551 part number TXFFT03GSER
> > > > > > > HTH
> > > > > > > Robert
> > > > > > > tvservice@xxxxxxxxxxxxx
> > > > > > > H & H Electronics Inc
> > > > > > > ----- Original Message -----
> > > > > > > From: "Shaun" <satguy@xxxxxxxxxxxxx>
> > > > > > > To: "tech" <techassist@xxxxxxxxxxxxx>
> > > > > > > Sent: Wednesday, August 18, 2004 11:05 AM
> > > > > > > Subject: [TechAssist] Panasonic CT-32HC43G Wont turn on
> > > > > > >
> > > > > > >
> > > > > > > > This is a 2003 set that the customer said he only has had
for
> a
> > > > month
> > > > > > and
> > > > > > > > bought it as-is. It will try to turn on sounds like
> high-voltage
> > > > tries
> > > > > > > then
> > > > > > > > shuts down and the front panel light will start blinking
very
> > > slowly
> > > > > > about
> > > > > > > > 4-5 times. I must unplug it to get it to do anything after
> each
> > > > time.
> > > > > > Has
> > > > > > > > anyone seen one of these of have any tips, or have a manual?
> > > > > > > >
> > > > > > > > Shaun
> > > > > > > >
> > > > > > > > Advanced Electronics
> > > > > > > > 224 West Riverview Ave.
> > > > > > > > Fort Morgan, CO 80701
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
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