Thats why my bench runs on a GFI circuit and all my soldering irons and scope etc have the ground pin removd from the plug. Al G peggs wrote: > > How about soldering with the unit plugged in....not realizing it > until you go to 'plug it up'........ breaking out in a cold sweat.......... > only to find the good Lord was watching over you and no > damage was done......whew......!!! > > Peggs > > At 10:16 AM 2/17/04, Doug Keller wrote: > >Almost as bad as unplugging all the connections from the board, > >disconnecting high voltage, getting everything ready to pull the board > >out, then discovering that you never unplugged it from the wall!! *laughs* > > > >Doug Keller > >Wis-Kel Electronics > >101 Freeland Ave. > >Terra Alta, WV > >USA 26764 > >dek@xxxxxxxxxxxxxx > >http://www.tech-assist.org > >"Learn from the mistakes of others, because you > >won't live long enough to make them all yourself" > > > > > > > >Phil Bader wrote: > > > > >Well, I really wrestled with my pride on posting this one message. > > >Here it goes. > > >Yesterday while troubleshooting this set, between my back ache and the > > >never > > >ending phone calls and walk ins (I'm alone), > > >When I carefully unsoldered the defective thermal video switch IC, U1401 > > >(161079/HCF4052B/NTE4052B), set it aside, opened the new part bag, > > >answered the > > >phone.... returned, and RE-INSTALLED the defective IC right back into > > >the set. > > >I kept cooling this "new" IC and the smear would clear. Finally I found > > >the replacement > > >next to the set still in the foam,clean pins and all. > > >Gad, I feel stupid. > > >Well thanks, group, for all the help offered. > > >The fix for the smear was a thermal IC U1401 video switch. > > >Very Stupidly Yours, > > >Phil > > > > > > > > > > > >>Philip Bader > > >>Jan Phyl TV Inc. (estab. 1976) > > >>3420 Recker Hwy. Winter Haven, Fl. 33880 > > >>Fax (863) 299-8821 > > >>email: tjanphyl@xxxxxxxxxxxxxxx > > >> > > >> > > > > > > > > >Phil Bader wrote: > > > > > > > > > > > >>I did check out that site.. Ziltch.. > > >>It was suggested a bad CRT, 200 volt scan-derived electrolytic cap to crt > > >>board weak,etc. > > >>This cannot be the case, as I get good picture with no smear in line-in > > >>video mode both with the RCA inputs and S-video. Those parts would be > > common > > >>to all video and tuner inputs. > > >>I have since changed the integrated tuner assy, the video switch IC U1401 > > >>(HCF4052B) and all 'lytics surrounding that IC. If I freeze spray around > > >>that IC, it clears! (And I've changed it with a new one.) and chemically > > >>cleaned the board) > > >>So it cannot be anything that shares the same circuitry as the RCA and > > >>S-video does, because they're OK. > > >>Only with tuner input... And as it stays on 10 minutes and more, it gets > > >>worse. I also notice the contrast is not as good in tuner mode either. > > >>That > > >>seems to go hand in hand with this smear thing. > > >>I'm stumped. > > >>Hey, RCA experts! > > >>Help!. > > >> > > >> > > >>Glen Rhea wrote: > > >> > > >> > > >> > > >>>Phil > > >>>You should check the history files re: ctc169 at www.wa6ati.com > > >>>Glen > > >>> > > >>>Phil Bader <tjanphyl@xxxxxxxxxxxxxxx> wrote: > > >>>After restoring the vertical (prev. post) I notice a good picture but > > >>>there is definately a video smear to the right of everything, more > > >>>noticable with text, of course. I lowered the sharpness and almost gone. > > >>> > > >>>Any histories on video smear with the CTC169's? > > >>>Phil Bader > > >>> > > >>>-- > > >>> > > >>>Philip Bader > > >>>Jan Phyl TV Inc. (estab. 1976) > > >>>3420 Recker Hwy. Winter Haven, Fl. 33880 > > >>>Fax (863) 299-8821 > > >>>email: tjanphyl@xxxxxxxxxxxxxxx > > >>> > > >>>-------- > > >>> > > >>> > > > > > >-- > > > > > > > > >------------------------------------------------------------------------- > > ---- > > >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/ ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/