[TechAssist] Re: Philips 25"ctv Model TS2574/ 25B800 chasis/No vertical
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 11 Mar 2004 18:05:57 -0500
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.
>
>
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