[TechAssist] Re: Philips F8 - Vert Problem FIXED!!
- From: "Dan Garris" <dgarris@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 12 Oct 2004 10:51:31 -0400
"Hats off" to Eric of EM Electronics in Canada for providing the fix below!!
I would "ADD" this tip to all your software tips programs as I could not
find it on any of mine!
Make: Philips
Model: TS2746C101
Chassis: F8
Problem: Vertical Lines on Bottom Half of Picture Only With Some Retrace.
Solution: Replace Vertical Orange-Drop Looking Capacitor C2409 0.22uF
Located in Front of Vertical Output IC. Capacitor Changed value from .22uF
to 700pF. Change Cap Even If Tests Good!
>From: <tvman@xxxxxxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: Philips F8 - Vert Problem
>Date: Tue, 12 Oct 2004 09:08:19 -0230
>
>Hi Dan check this out Eric
>VERTICAL, LINES ON BOTTOM HALF OF PICTURE REPLACE 2409 0.22UF SHOWS GOOD
>
>E M Electronics
>Deer Lake NL
>Canada
>tvman@xxxxxxxxxxxxxxx
>eric.manuel@xxxxxxxxx
>----- Original Message -----
>From: "Dan Garris" <dgarris@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Monday, October 11, 2004 11:31 PM
>Subject: [TechAssist] Re: Philips F8 - Vert Problem
>
>
> > Thanks Max, I do have the Sams #4596 to go by for now. I was just hoping
> > some other Tech has ran across this odd vertical problem on these common
> > Philips F8 Chassis. I am at home right now but will troubleshoot more in
>the
> > morning. Thanks again Max for the very kind offer.
> >
> > Dan Garris
> > Garris TV
> > New Bern, NC
> > dgarris@xxxxxxxxxxx
> > (252) 638-4477
> >
> > >From: mebonnell@xxxxxxxxx (Old TV Man)
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: techassist@xxxxxxxxxxxxx
> > >Subject: [TechAssist] Re: Philips F8 - Vert Problem
> > >Date: Mon, 11 Oct 2004 16:29:57 -0500
> > >
> > >Dan I have the schematic if you want any of it scanned.
> > >
> > >Max Bonnell
> > >Bonnell TV
> > >Robinson, IL
> > >
> > >Sender: techassist-bounce@xxxxxxxxxxxxx From:
> > >dgarris@xxxxxxxxxxx(Dan=A0Garris) Date: Mon, Oct 11, 2004, 5:03pm
> > >(CDT+1) To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: Philips
> > >F8 - Vert Problem? Reply=A0to: techassist@xxxxxxxxxxxxx
> > >
> > >Thats what I thought as well. I have no Yoke buzzing and the picture
>has
> > >no Convergence problems or keystoning - just the bottom half of the
> > >picture has "lots of lines" in it. You can see thru the lines and make
> > >out the bottom of the picture and when you change channels the
>On-screen
> > >display (which shows at the top of the picture) can be seen retracing
>at
> > >the bottom of the screen along with the lines in the bottom of the
> > >screen. The top half is fine. I even replaced C2489 even though it
> > >tested ok with the ESR meter. I still have the problem. I've not seen
> > >this problem on the F8 before!
> > >
> > >Dan Garris
> > >Garris TV
> > >New Bern, NC
> > >dgarris@xxxxxxxxxxx
> > >(252) 638-4477
> > >
> > >From: "John at Main TV" <maintv2004@xxxxxxxxxxx>
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Subject: [TechAssist] Re: Philips F8 - Vert Problem?
> > >Date: Mon, 11 Oct 2004 14:47:15 -0600
> > >
> > >The F8 is very common for yoke problems but your symptom does not sound
> > >like
> > >a yoke. It usually causes bad convergence or a buzz. The only way that
>I
> > >know to check is by substitution from another 27 ". Or if you swap one
> > >from a 25", it will work but the convergence will be way off. The cost
> > >of the yoke is around $50. The common problem for foldover on the
>bottom
> > >is C2489. John.
> > >
> > >John Mielke
> > >Main TV
> > >636 main St.
> > >Longmont, Co
> > >phone 303 776 6955
> > >fax 303 776 0792
> > >maintv2004@xxxxxxxxxxx
> > >
> > >----- Original Message -----
> > >From: "Dan Garris" <dgarris@xxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Monday, October 11, 2004 2:19 PM
> > >Subject: [TechAssist] Philips F8 - Vert Problem?
> > >
> > >Make: =A0 Philips 27" TV
> > >Model: =A0 TS2746 C101
> > >Chassis: F8
> > >
> > >Has vertical lines (bad vertical foldover) only on "bottom half" of
> > >picture. Top half of picture looks fine. I replaced the STV9379FA
> > >Vertical output
> > >IC
> > >(no change) and checked all vertical caps and C2489 (all ok) (no
>change)
> > >also checked R3409 & R3488 out of circuit (they were ok). TV does not
>go
> > >into shutdown nor does it have any keystone effect, just bad Vert
> > >foldover on bottom half of picture. Tips say maybe bad Yoke?
> > >BTW, This is "NOT" the common bright screen symptom caused by R3340 on
> > >the CRT board. This set stays on and has a picture. Anyone seen this
> > >problem?
> > >Is
> > >it the Yoke?
> > >
> > >Dan Garris
> > >Garris TV
> > >New Bern, NC
> > >dgarris@xxxxxxxxxxx
> > >(252) 638-4477
> > >----------------------------------------------
> > >---
> > >
> > >
> >
> >---------------------------------------------------------------------------
>--
> > >Lost Password:
> > >http://www.tech-assist.org and select "Login Problems?".
> > >Email Archives:
> > >//www.freelists.org/archives/techassist/
> >
> >
> >
> >
>--------------------------------------------------------------------------
>---
> > Lost Password:
> > http://www.tech-assist.org and select "Login Problems?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
>
>
>-----------------------------------------------------------------------------
>Lost Password:
>http://www.tech-assist.org and select "Login Problems?".
>Email Archives:
>//www.freelists.org/archives/techassist/
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
