[TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 - Vertical Collapse
- From: Kevin <kevintv@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 30 Nov 2004 12:00:44 -0800
What does QC stand for?
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of J Silverman
Sent: Monday, November 29, 2004 3:38 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 - Vertical
Collapse
QC people know that bad parts in a sample mean bad parts in the batch,
and
if the number of bad parts is above normal that something is wrong with
the
whole batch and they will probably all cause trouble eventually. QC
people
also know that you cant test quality into a part, so sorting out the bad
parts doesnt mean that the rest will stay good. Savvy users of
electronic
components usually want to have a look at the manufacturers QC data and
test
results before the batch is shipped. They dont want batches that had a
higher than normal reject rate in the original testing.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
Fax/Phone 864 232 3889
mail to: greentron@xxxxxxx
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, November 29, 2004 3:55 PM
Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 - Vertical
Collapse
> If one in a batch is bad, does that mean that the whole batch is bad?
I
> am guessing that they make a certain number all at the same time.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
> Sent: Monday, November 29, 2004 6:47 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 - Vertical
> Collapse
>
> Large enough to test a sample instead of the entire batch and small
> enough to not to cause the factory to sink.
>
************************************************************************
> *******************************************
> Since 1972
> Jim Myers
> Telrad Electronics
> Fort Wayne, Indiana
>
> Kevin wrote:
> > How large were the batches?
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
> > Sent: Saturday, November 27, 2004 7:26 AM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 -
Vertical
> > Collapse
> >
> > I'm no xpert fer sure but in my opinion any semiconductor purchased
> from
> >
> > a manufacturer should be an ok part since all the manufacturers have
> > safeguards in place to insure that the parts they purchase meet the
> > required specs. Way back when Magnavox was Magnavox I worked there
and
> I
> >
> > know they had an entire department set up to inspect and test
incoming
>
> > parts by testing a sample of every batch, if the sample failed the
> > entire batch was rejected and returned to the supplier. Guess where
> the
> > cheap generics come from!
> >
>
************************************************************************
> > *******************************************
> > Since 1972
> > Jim Myers
> > Telrad Electronics
> > Fort Wayne, Indiana
> >
> >
> > Kevin wrote:
> >
> >>I have never had a problem with generic vertical IC's. If I do have
a
> >>problem, do I have to buy them from each manufacturer, or can I get
> >
> > them
> >
> >>from one manufacturer that would be good for all TV's?
> >>
> >>Kevin Wilks
> >>Kevin's TV & Video Repair
> >>Penticton BC Canada
> >>kevintv@xxxxxxx
> >>
> >>
> >>-----Original Message-----
> >>From: techassist-bounce@xxxxxxxxxxxxx
> >>[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
> >>Sent: Friday, November 26, 2004 1:27 PM
> >>To: techassist@xxxxxxxxxxxxx
> >>Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 -
Vertical
> >>Collapse
> >>
> >> From the manufacturers since we had problems with generics.
> >>
> >
> >
>
************************************************************************
> >
> >>*******************************************
> >>Since 1972
> >>Jim Myers
> >>Telrad Electronics
> >>Fort Wayne, Indiana
> >>
> >>
> >>Kevin wrote:
> >>
> >>
> >>>Jim, where do you buy your vertical deflection IC's?
> >>>
> >>>Kevin Wilks
> >>>Kevin's TV & Video Repair
> >>>Penticton BC Canada
> >>>kevintv@xxxxxxx
> >>>
> >>>
> >>>-----Original Message-----
> >>>From: techassist-bounce@xxxxxxxxxxxxx
> >>>[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jim Myers
> >>>Sent: Friday, November 26, 2004 10:03 AM
> >>>To: techassist@xxxxxxxxxxxxx
> >>>Subject: [TechAssist] Re: Quasar TV - QC298X50H - YAEDC218 -
Vertical
> >>>Collapse
> >>>
> >>>Generic LA7838? Shame, shame, shame!
> >>>
> >>
> >>
> >
>
************************************************************************
> >
> >>>*******************************************
> >>>Since 1972
> >>>Jim Myers
> >>>Telrad Electronics
> >>>Fort Wayne, Indiana
> >>>
> >>>
> >>>David wrote:
> >>>
> >>>
> >>>
> >>>>Hello All,
> >>>>
> >>>>Replace LA7838 deflection IC along with caps C455 (100uf/25v) and
> >
> > C453
> >
> >>>>(2.2uf/100v), TV was OK when I left. Customer called backed today,
> >>>>picture started developing lines on top of screen, slight
> compression
> >>>
> >>>of
> >>>
> >>>
> >>>
> >>>>picture, think he mentioned black on top. What caps did I miss?
> >>>>
> >>>>Thanks in advance,
> >>>>
> >>>>David Lessard
> >>>>Alexandria Electronics
> >>>>mr_fixit@xxxxxxxxxxxx
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >
>
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