[TechAssist] Re: Toshba CF30D50 tac9440
- From: "tom lee" <t8872695@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 18 Sep 2003 05:06:36 -0000
Al.
With original yoke tv made 2HOTs burn.Then later it does not burn anymore
HOT..It just shutdown instantely or after 6seconds with high current and
make HOT hot.Today I will check horizontal driver signal voltage.I think B+
115v is OK It is low but look at anotherToshiba model print It has same B+
voltage.
Thanks Al.
Dang TD electronics
www.tvcrcomputers.com
----- Original Message -----
From: "al m" <ampm@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 18, 2003 2:51 AM
Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> Sorry Tomlee I can't tell you which transistors are the shutdown. Maybe
> someone who is reading this can help.The one I worked on wasn't your model
> #. Is the HOT heating with the original yoke? Are you sure 115V is ok for
> B+?
> al marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message -----
> From: "tomlee" <t8872695@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, September 17, 2003 10:33 PM
> Subject: [TechAssist] Re: Toshba CF30D50 tac9440
>
>
> > Al
> > I substitute with 4,5 diferent yokes. Most low ohm yoke 1.2,1.4 ohm
....It
> > will shut down after 6 seconds.some shut down instantly. and feel hot as
I
> > touch with finger at HOT. But with 3.5ohm yoke It run good with cool HOT
> > .Can you tell me which components I can defeat the shutdown.I want to
save
> a
> > trip to buy Sam manual.
> > Dang TD electronics
> >
> > ----- Original Message -----
> > From: "al m" <ampm@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, September 17, 2003 6:16 PM
> > Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> >
> >
> > > Not sure about the vertical readings Tomlee. Still sounds like The
pulse
> > is
> > > too high. You know I had a Toshiba a while back that was doing the
same
> > > thing and it turned out to be the shutdown transistor was leaky. Do
you
> > have
> > > a manual?
> > > al marquardt
> > > ampm@xxxxxxx
> > > Al Marquardt Electronic Repair
> > > 206 W Main
> > > Girardville Pa. 17935
> > > ----- Original Message -----
> > > From: "Trac Dang" <t8872695@xxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Wednesday, September 17, 2003 3:51 PM
> > > Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> > >
> > >
> > > > Hi Al.
> > > > I did ring the yoke result 14 rings .My sencore said with flyback
> should
> > > be
> > > > 9 rings or above . But some vertical yoke It is only 4 or 5 rings .
As
> > my
> > > > thinking every yoke or tranfomer must be 9 rings or above to
consider
> > > > good.What is your idea?.I will ring the fly back today. Thanks AL
> > > > Dang TD electronics
> > > > 18546 sherman way
> > > > ----- Original Message -----
> > > > From: al m <ampm@xxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Wednesday, September 17, 2003 10:17 AM
> > > > Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> > > >
> > > >
> > > > > Tomlee, do you have a ringer to ring the flyback and yoke?
> > > > > al marquardt
> > > > > ampm@xxxxxxx
> > > > > Al Marquardt Electronic Repair
> > > > > 206 W Main
> > > > > Girardville Pa. 17935
> > > > > ----- Original Message -----
> > > > > From: "tomlee" <t8872695@xxxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Wednesday, September 17, 2003 12:43 PM
> > > > > Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> > > > >
> > > > >
> > > > > > Hello Al and George .
> > > > > > Check timing caps are ok. As I think with original yoke and
> flyback
> > It
> > > > run
> > > > > > with higher current in HOT and make shutdown.If I substitute
> another
> > > > yoke
> > > > > It
> > > > > > run cool and with no shutdown.May be yoke or flyback are not
good
> > due
> > > to
> > > > > the
> > > > > > HOT was shorted? I have B+ is 115v.
> > > > > > Dang TD electronics
> > > > > > 18546 sherman way
> > > > > > ----- Original Message -----
> > > > > > From: "al m" <ampm@xxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Monday, September 15, 2003 3:38 PM
> > > > > > Subject: [TechAssist] Re: Toshba CF30D50 tac9440
> > > > > >
> > > > > >
> > > > > > > Check your timing caps Tomlee.
> > > > > > > al marquardt
> > > > > > > ampm@xxxxxxx
> > > > > > > Al Marquardt Electronic Repair
> > > > > > > 206 W Main
> > > > > > > Girardville Pa. 17935
> > > > > > > ----- Original Message -----
> > > > > > > From: "tomlee" <t8872695@xxxxxxxxxxxxx>
> > > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > > Sent: Monday, September 15, 2003 6:43 PM
> > > > > > > Subject: [TechAssist] Toshba CF30D50 tac9440
> > > > > > >
> > > > > > >
> > > > > > > > Hello fellas techs.
> > > > > > > > I am working with Toshiba TV CF30D50 . It is a tough one.
> > > > > > > > At the customer house The tv is shut down when turn on. Find
> out
> > > the
> > > > > HOT
> > > > > > > is shorted and fuse for B+ is open.Replace
> > > > > > > > all of them and resolder horizontal tranfomer driver
pins.Now
> > the
> > > tv
> > > > > is
> > > > > > > still shutdown. But I hook up another horizontal yoke (a
little
> > bit
> > > > > higher
> > > > > > > empedance )the TV will turn on.I need some help from fellas
> > > techs.TIA
> > > > > > > > Dang TD electronics
> > > > > > > > 18546 sherman way
> > > > > > > > reseda, ca 91335
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
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