[TechAssist] Re: vertical problem
- From: "tomlee" <t8872695@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 17 Jan 2003 02:38:31 -0800
Hi Peter.
Actually I brought this board to shop to work without tube. Just substitute
the yoke.I even
substitute the vertical signal driver at pin 4 I still have zero volt at pin
2 output.I will replace the diode and try TA8403.Thanks
Dang TD electronics
----- Original Message -----
From: Peter oliver <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 16, 2003 7:20 PM
Subject: [TechAssist] Re: vertical problem
>
> I saw one reference to that chip IX1224ce that said to use TA8403K. The
data
> sheet at B&D is in japaneese but this looks like the Tall vertical chip
> sharp has used m in there mid 90's sets. on that basis the last one that I
> had needed the vertical ic replaced, it still had voltage also there is a
> cap (a 100uf I think) that fails or can fail near the IC and cause it to
> fail I will try to send the data sheets I found to you (sorry I havent
found
> any in english). one is a PDF the other is a GIF file. Check the yoke and
> see if the vertical ramp is being generated
>
> Peter Oliver
> Tucson Radio TV
>
>
>
> From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: vertical problem
> Date: Thu, 16 Jan 2003 20:02:51 -0500
>
>
> Can you at least give us the size and approximate vintage?
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxxxxxxx
> geminitv@xxxxxxx
>
> ----- Original Message -----
> From: "Trac Dang" <t8872695@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, January 16, 2003 7:08 PM
> Subject: [TechAssist] vertical problem
>
>
> >
> > Hello Group members.
> > I am working with a Sharp TV (missing model #). No picture ,has
> sound.Crank
> > up
> > screen voltage I see a horizontal line. There is no vert. Try every
thing
> > even replace Ic
> > X1224CE to TA8427 I do not have original IC. It is a simple IC with 7
> pins
> > I
> > have 27 volts at pin 6 and pin3. Try hard but no luck. Any ideas is
> > appriciated.
> > Dang TD electronics.
> >
> >
> >
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