[TechAssist] Re: Philips 25"ctv Model TS2574/ 25B800 chasis/No vertical
- From: gulftech@xxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 11 Mar 2004 17:49:42 -0600
Mando,
Besides what you have replaced, check/replace the following:
R445, 1 ohm
D445
R420, 1 ohm
Also, found a note to check C447, 1000@16v, to prevent failure of the
vertical output IC.
HTH
Ken Smith
Gulf Technical Services
3034 Gulf Breeze Parkway
Gulf Breeze, FL 32563
850-934-8324 (Voice) 850-932-0819 (Fax)
On Thu, 11 Mar 2004 13:55:08 -0700 armando guerra <birdie@xxxxxxxxxxxxx>
writes:
> This set when powered on,would try to start but go into shutdn.I
> replaced the vertical ic TDA-9302h,D 409 (used nte 580) R420=1
> ohm,and
> C557 =100\50v lytic.Now when I power the tv on,tv comes on but has
> just
> a line across screen (no vertical defflection).I have the manual for
> the
> F8 chasis but not for this B8.They are different.The +13v and the
> -13V
> at the ic are there.I had a known good used yoke,subbed it and made
> no
> difference. Can someone with the B8 chasis manual send me a print of
> the vertical ckt so that I troubleshoot this problem .Any tips ir
> idea's
> would also be apreciated. Thanks.
> Mando
> Birdie's TV & Electronics
> Casa GRande, AZ
> PS I made sure that the traces to the ic are ok.I have seen some
> come
> apart when unsoldering the ic.Also the traces to D409.
>
>
>
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