[TechAssist] Re: Philips 25"ctv Model TS2574/ 25B800 chasis/No vertical
- From: armando guerra <birdie@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 12 Mar 2004 10:07:53 -0700
Bob,I have checked all of the parts that you mentioned and all check ok now and
still no vertical.This parts that you are talking about supply the +13.5 and the
-13.5v to the ic and both voltages are there so I am going to assume that the 2
diodes and resistors are ok.
Thanks for the input.
Mando
Birdie's TV & Electronics
Casa Grande, AZ
Gemini Computer & TV wrote:
> Mando,
> With a vertical failure on these, check or replace the following:
>
> IC500 (TDA9302H), Philips part# 483520988531
> D409 Philips part# 483513037094
> R420 (1 ohm, 1/3 watt), Philips part# 483511657109
> D445 (same as D409)
> R445 (same as R420)
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxxxxxxx
> geminitv@xxxxxxx
> www.geminicomputertvsecurityalarms.com
>
> ----- Original Message -----
> From: "armando guerra" <birdie@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 11, 2004 3:55 PM
> Subject: [TechAssist] Philips 25"ctv Model TS2574/ 25B800 chasis/No vertical
>
> > 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.
> >
> >
> > --------------------------------------------------------------------------
> ---
> > 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:
