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RCA 32V550 ITC008 mutiple black lines in picture.    
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gkserv



Joined: 20 Aug 2008
Posts: 2

PostPosted: Wed Aug 20, 2008 10:00 am    Post subject: RCA 32V550 ITC008 mutiple black lines in picture. Reply with quote

RCA 32V550. ITC008. Unit came with burnt Vertical IC,TDA8177 and slight liquid corrosions. Replaced Vert.IC. Got pciture back but with multiple retace like lines in picture and Vert ic seems getting hot. Cleaned liquid corrosions parts and replace CF010. Lines appear even on Ch. display box area without signal input. Any suggestions ? Thanks.
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Wendell1980



Joined: 30 Dec 2007
Posts: 74
Location: Cambridge, Ontario, Canada

PostPosted: Sat Aug 30, 2008 11:01 am    Post subject: Reply with quote

its possible some caps near vertical ic where damged too or have high esr
gkserv



Joined: 20 Aug 2008
Posts: 2

PostPosted: Sat Aug 30, 2008 11:33 am    Post subject: Reply with quote

Thanks for your reply. There oney two caps around Vert IC. I did changed them, nd still same. Voltages on Vrt IC are bit off. .Pin 2 is + 18v and Pin 4 is -12v. Itraced to flyback area changed caps and diodes still same. Both valtages on pin 2 & 4 should be more less same in diffrent polarity. According to Schematic,ITC008, they are respectively sizes of CRT. more less. Did anyone had Vertical supply voltages problems may be due to Def. Flyback ?
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