[TechAssist] Re: PTK 169PTC P60153EB reg. B+ too high shutsdown

  • From: "Terry H." <tvdoc@xxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 2 Feb 2004 05:58:03 -0600

Larry, since we're all swinging at crap in the dirt, have you swapped out
the chopper xformer yet? I know I've only had two of those over the years
that were bad, but one comes to mind for something similar as yours. It just
seems you've eliminated most things that would draw that much current. If
you've already done it, then I got nuttin. Sorry.
Terry H.
The TV Shop
Gonzales, Tx

----- Original Message -----
From: "Larry E." <videotech@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, February 01, 2004 10:25 PM
Subject: [TechAssist] Re: PTK 169PTC P60153EB reg. B+ too high shutsdown


> Walter, standby B+ is normal,(143 volts) run B+ is too high causing
shutdown. If
> I put it on
> a variac at approx. 85 volts the set comes on but I have to immediately
lower the
> variac to
> less than 70 volts or it shuts down, at 68 volts the set will run and
light the
> tubes, at 68 volts
> on the variac I have 135 volts on CR4116 (regulated B+) pushing the variac
up to
> 70 volts
> instantly shuts down the set, of course at 68 volts all my voltages are
useless
> so I can`t really
> tell what circuit is causing the regulated B+ to be so high, I`ve now
replaced
> the flyback
> with a known good one and still have the same symptom, pulled the anode
lead from
> the splitter
> etc. etc. Problem must be in the run regulator circuit somewhere, I`ll
tackle it
> tomorrow and
> let everyone know what I find if anything, I`ve got waaay too many hours
and
> parts in it
> already, Funny how a chassis we`ve all worked on a hundred times can be so
> humbling eh?
>  Thanks for your help, Larry E
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
> walter wood wrote:
>
> > Larry, is the B+ really too high??
> > Thomson tech support says that some of these can be
> > at 175vdc at standby.
> > If it's a shutdown problem, the splitter is the
> > prime culprit.
> > I have also has bad crt's to cause it, so just
> > pulling the input to the splitter is not all
> > conclusive.
> > If pulling the splitter DOES allow the set to stay
> > on(sound only), then you need to pull the crt anode
> > feeds one at a time.
> > I replaced a splitter once, and then found the bad
> > crt.
> > Buddy, I'm sorry, I'm out of ideas after this.
> > Walter
> >
> > --- "Larry E." <videotech@xxxxxxxxxxxx> wrote:
> > > Walter, have now replaced all of those parts and
> > > then some, tried known good
> > > flyback, no
> > > change, run B+ is just way to high, I`ll get back
> > > at it Monday, thanks for the
> > > help, Larry E
> > >
> > > Larry Eastman
> > > American TV & Electronics
> > > Crystal River, Fl. 34428
> > >
> > > walter wood wrote:
> > >
> > > > Here's all I have on high B+.
> > > > C4108
> > > > CR4122
> > > > C4102
> > > > C4104
> > > > C4141
> > > > Q4105
> > > > I suggest replacing rather than checking.
> > > > Especially, at this point.
> > > > I know it's not the usual failure mode, but how
> > > > about changing the Regulator IC ?
> > > > What about the chopper transistor??
> > > > Stranger things have happened.
> > > > HTH
> > > > Walter
> > > >
> > > > --- "Larry E." <videotech@xxxxxxxxxxxx> wrote:
> > > > > Jeff, thanks for the reply, changed them, no
> > > > > change. Larry E
> > > > >
> > > > > Larry Eastman
> > > > > American TV & Electronics
> > > > >
> > > > > Shoreline Electronics wrote:
> > > > >
> > > > > > Even still...replace them if they are
> > > > > original...to be sure...and to
> > > > > > eliminate them failing down the road.
> > > > > >
> > > > > > =================================
> > > > > > Jeff Stielau
> > > > > > Shoreline Electronics Repair
> > > > > > 344 East Main Street
> > > > > > Clinton,CT 06413
> > > > > > (860)399-1861
> > > > > > (860)664-3535 FAX
> > > > > > jstielau@xxxxxxxx
> > > > > > =================================
> > > > > > ----- Original Message -----
> > > > > > From: "Larry E." <videotech@xxxxxxxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Saturday, January 31, 2004 2:27 PM
> > > > > > Subject: [TechAssist] Re: PTK 169PTC
> > > P60153EB
> > > > > reg. B+ too high shutsdown
> > > > > >
> > > > > > > Wayne, already posted that C4102 was
> > > > > replaced, 104, 108 have been checked,
> > > > > > Larry
> > > > > > > E
> > > > > > >
> > > > > > > Larry Eastman
> > > > > > > American TV & Electronics
> > > > > > > Crystal River, Fl. 34428
> > > > > > >
> > > > > > > Wayne Vanaman wrote:
> > > > > > >
> > > > > > > > In the power supply primary, there are
> > > > > three caps to change, a 2.2, a
> > > > > > 15,
> > > > > > > > and either a 39 or 47.
> > > > > > > >
> > > > > > > > Wayne Vanaman
> > > > > > > > Omega Electronics
> > > > > > > > 6904 W Fairfield Dr
> > > > > > > > Pensacola, Fl.  32506-3310
> > > > > > > >
> > > > > > > > Wayne@xxxxxxxxxxxxxxxxxxxxx
> > > > > > > > WWW.PensacolaTVRepair.Com
> > > > > > > >
> > > > > > > > 850-456-5995 voice
> > > > > > > > 850-458-6369 fax
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: "Larry E."
> > > <videotech@xxxxxxxxxxxx>
> > > > > > > > To: "tech-assist"
> > > > > <techassist@xxxxxxxxxxxxx>
> > > > > > > > Sent: Saturday, January 31, 2004 12:17
> > > PM
> > > > > > > > Subject: [TechAssist] PTK 169PTC
> > > P60153EB
> > > > > reg. B+ too high shutsdown
> > > > > > > >
> > > > > > > > > Hi Guys, I could definitely use some
> > > help
> > > > > on this PTK169, All standby
> > > > > > > > > voltages are correct,
> > > > > > > > > set starts to come up then
> > > immediately
> > > > > shutsdown, originally I
> > > > > > replaced
> > > > > > > > > Cr4118 and C4102,
> > > > > > > > > set ran perfectly in shop, brought to
> > > > > customers house, and set
> > > > > > wouldn`t
> > > > > > > > > start, set will start at
> > > > > > > > > approx. 80 volts on variac but I have
> > > to
> > > > > back it down immed. to 69
> > > > > > volts
> > > > > > > > > to keep it running,
> > > > > > > > > at this setting the run regulated
> > > voltage
> > > > > is already at 135 volts, of
> > > > > > > > > course if I try to increase the
> > > > > > > > > variac it shuts down. I have checked
> > > > > Y4301, CR4123, CR4401, CR4402,
> > > > > > > > > C4104, C4108
> > > > > > > > > C4401, C4402, C4406, I removed the
> > > anode
> > > > > lead from the splitter, still
> > > > > > > > > shutsdown immediately
> > > > > > > > > I`m lost at this point any ideas?
> > > tia,
> > > > > Larry E
> > > > > > > > > Larry Eastman
> > > > > > > > > American TV & Electronics
> > > > > > > > > Crystal River, Fl. 34428
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > > > ---
> > > > > > > > > Jokes, complaints, off topics,
> > > general
> > > > > chat. Everything other than
> > > > > > repair
> > > > > > > > > help problems can be found at this
> > > new
> > > > > list. No archives and posts
> > > > > > will
> > > > > > > > not
> > > > > > > > > be found on Google or any other
> > > engine!To
> > > > > remove or join, click:
> > > > > > > > >
> > > > >
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > > > > > > Send to the list at
> > > chat@xxxxxxxxxxxxxxx
> > > > > once subscribed.
> > > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > > > ---
> > > > > > > > > Lost Password:
> > > > > > > > > http://www.tech-assist.org  and
> > > select
> > > > > "Login Problems?".
> > > > > > > > > Email Archives:
> > > > > > > > >
> > > > > //www.freelists.org/archives/techassist/
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > ---
> > > > > > > > Jokes, complaints, off topics, general
> > > > > chat. Everything other than
> > > > > > repair
> > > > > > > > help problems can be found at this new
> > > > > list. No archives and posts will
> > > > > > not
> > > > > > > > be found on Google or any other
> > > engine!To
> > > > > remove or join, click:
> > > > > > > >
> > > > >
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > > > > > Send to the list at
> > > chat@xxxxxxxxxxxxxxx
> > > > > once subscribed.
> > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > ---
> > > > > > > > Lost Password:
> > > > > > > > http://www.tech-assist.org  and select
> > > > > "Login Problems?".
> > > > > > > > Email Archives:
> > > > > > > >
> > > > > //www.freelists.org/archives/techassist/
> > > > > > >
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > ---
> > > > > > > Jokes, complaints, off topics, general
> > > chat.
> > > > > Everything other than repair
> > > > > > > help problems can be found at this new
> > > list.
> > > > > No archives and posts will
> > > > > > not
> > > > > > > be found on Google or any other engine!To
> > > > > remove or join, click:
> > > > > > >
> > > > >
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > > > > Send to the list at chat@xxxxxxxxxxxxxxx
> > > once
> > > > > subscribed.
> > > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
> > > > > > ---
> > > > > > > Lost Password:
> > > > > > > http://www.tech-assist.org  and select
> > > "Login
> > > > > Problems?".
> > > > > > > Email Archives:
> > > > > > >
> > > //www.freelists.org/archives/techassist/
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > > > Jokes, complaints, off topics, general
> > > chat.
> > > > > Everything other than repair
> > > > > > help problems can be found at this new
> > > list. No
> > > > > archives and posts will not
> > > > > > be found on Google or any other engine!To
> > > > > remove or join, click:
> > > > > >
> > > > >
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > > > Send to the list at chat@xxxxxxxxxxxxxxx
> > > once
> > > > > subscribed.
> > > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > > > Lost Password:
> > > > > > http://www.tech-assist.org  and select
> > > "Login
> > > > > Problems?".
> > > > > > Email Archives:
> > > > > >
> > > //www.freelists.org/archives/techassist/
> > > > >
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > > Jokes, complaints, off topics, general chat.
> > > > > Everything other than repair
> > > > > help problems can be found at this new list.
> > > No
> > > > > archives and posts will not
> > > > > be found on Google or any other engine!To
> > > remove
> > > > > or join, click:
> > > > >
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > >
> > > > > Send to the list at chat@xxxxxxxxxxxxxxx once
> > > > > subscribed.
> > > > >
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > > Lost Password:
> > > > > http://www.tech-assist.org  and select "Login
> > > > > Problems?".
> > > > > Email Archives:
> > > > > //www.freelists.org/archives/techassist/
> > > >
> > > > =====
> > > > Walter Wood
> > > > Future Tech Home Center
> > > > 2786 Hwy. 43 N.
> > > > Lawrenceburg Tn. 38464
> > > > 931-829-3337
> > > > Fax 931-829-4044
> > > > mailto:wwood_38478@xxxxxxxxx
> > > >
> > > > __________________________________
> > > > Do you Yahoo!?
> > > > Yahoo! SiteBuilder - Free web site building
> > > tool. Try it!
> > > > http://webhosting.yahoo.com/ps/sb/
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > Jokes, complaints, off topics, general chat.
> > > Everything other than repair
> > > > help problems can be found at this new list. No
> > > archives and posts will not
> > > > be found on Google or any other engine!To
> > > remove or join, click:
> > > >
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > > > Send to the list at chat@xxxxxxxxxxxxxxx once
> > > subscribed.
> > > >
> > >
>
> --------------------------------------------------------------------------
---
> > > > Lost Password:
> > > > http://www.tech-assist.org  and select "Login
> > > Problems?".
> > > > Email Archives:
> > > > //www.freelists.org/archives/techassist/
> > >
> > >
>
> --------------------------------------------------------------------------
---
> > > Jokes, complaints, off topics, general chat.
> > > Everything other than repair
> > > help problems can be found at this new list. No
> > > archives and posts will not
> > > be found on Google or any other engine!To remove
> > > or join, click:
> > >
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > >
> > > Send to the list at chat@xxxxxxxxxxxxxxx once
> > > subscribed.
> > >
>
> --------------------------------------------------------------------------
---
> > > Lost Password:
> > > http://www.tech-assist.org  and select "Login
> > > Problems?".
> > > Email Archives:
> > > //www.freelists.org/archives/techassist/
> >
> > =====
> > Walter Wood
> > Future Tech Home Center
> > 2786 Hwy. 43 N.
> > Lawrenceburg Tn. 38464
> > 931-829-3337
> > Fax 931-829-4044
> > mailto:wwood_38478@xxxxxxxxx
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! SiteBuilder - Free web site building tool. Try it!
> > http://webhosting.yahoo.com/ps/sb/
>
> --------------------------------------------------------------------------
---
> > Jokes, complaints, off topics, general chat. Everything other than
repair
> > help problems can be found at this new list. No archives and posts will
not
> > be found on Google or any other engine!To remove or join, click:
> > mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> > Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
>
> --------------------------------------------------------------------------
---
> > Lost Password:
> > http://www.tech-assist.org  and select "Login Problems?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
>
> --------------------------------------------------------------------------
---
> Jokes, complaints, off topics, general chat. Everything other than repair
> help problems can be found at this new list. No archives and posts will
not
> be found on Google or any other engine!To remove or join, click:
> mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
> --------------------------------------------------------------------------
---
> Lost Password:
> http://www.tech-assist.org  and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
> [Scanned by AwesomeNet Anti-Virus]
>
>
> [Scanned by AwesomeNet Anti-Virus]
>
>


[Scanned by AwesomeNet Anti-Virus]

-----------------------------------------------------------------------------
Jokes, complaints, off topics, general chat. Everything other than repair 
help problems can be found at this new list. No archives and posts will not 
be found on Google or any other engine!To remove or join, click: 
mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat 
Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org  and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/

Other related posts: