I had two last week with that diode bad. Measure the Voltage at both ends , one side 25v the other about .7 volts below. When bad there is about 17v drop across diode.replace with equiv to ecg 125 works fine. Tony Saracco TCS ELECTRONICS Elgin , IL 60120 847-695-1928 tcselectronics@xxxxxxxxxxxxxxxx ----- Original Message ----- From: <woodman1@xxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Saturday, August 16, 2003 6:16 PM Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > Peter, > Before you change the T chip, remove the diode thats between two pins on the vert output, take one from a junk chassis and try that.. Had a CTC??? same problem good drive from T chip to vert output and it was the diode. Checked good in circuit, out of the circuit measured 550ohms and reverse it measured like 2 meg.. Worth a try before the T chip.. > I did post it but i'm at mome and don't remember #.. > > Bob > > Bob's TV Worcester, ma > > -------Original Message------- > From: Peter oliver <oliver_peter1@xxxxxxxxxxx> > Sent: 08/16/03 05:42 PM > To: techassist@xxxxxxxxxxxxx > Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > > > > > Thanks al, I'm going to have to order one to try that, checked my stock and > > its depleted > > Peter Oliver > Tucson Radio TV > > > From: "al m" <ampm@xxxxxxx> > Reply-To: techassist@xxxxxxxxxxxxx > To: <techassist@xxxxxxxxxxxxx> > Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > Date: Fri, 15 Aug 2003 23:07:52 -0400 > > It's a LA7610 or a LA7612. > al marquardt > ampm@xxxxxxx > Al Marquardt Electronic Repair > 206 W Main > Girardville Pa. 17935 > ----- Original Message ----- > From: "al m" <ampm@xxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Friday, August 15, 2003 11:05 PM > Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > > > > I think it's IC1001. It's the big chip everything comes out of. You're > right > > I can't think either. > > al marquardt > > ampm@xxxxxxx > > Al Marquardt Electronic Repair > > 206 W Main > > Girardville Pa. 17935 > > ----- Original Message ----- > > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx> > > To: <techassist@xxxxxxxxxxxxx> > > Sent: Friday, August 15, 2003 10:51 PM > > Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > > > > > > > Tunners has been resoddred and RF jack replaced. Which one is the T > chip > > not > > > a real familiar designation but maybe just getting too late to think > well, > > > at home now anyway. Need to look into tommorow. > > > > > > Peter Oliver > > > Tucson Radio TV > > > > > > > > > From: "al m" <ampm@xxxxxxx> > > > Reply-To: techassist@xxxxxxxxxxxxx > > > To: <techassist@xxxxxxxxxxxxx> > > > Subject: [TechAssist] Re: RCA CTC177AG Vertical foldover > > > Date: Fri, 15 Aug 2003 22:25:16 -0400 > > > > > > Peter did you try changing the T chip? I had one where the video > would > > roll > > > and changing the T chip cured it. > > > al marquardt > > > ampm@xxxxxxx > > > Al Marquardt Electronic Repair > > > 206 W Main > > > Girardville Pa. 17935 > > > ----- Original Message ----- > > > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx> > > > To: <techassist@xxxxxxxxxxxxx> > > > Sent: Friday, August 15, 2003 9:44 PM > > > Subject: [TechAssist] RCA CTC177AG Vertical foldover > > > > > > > > > > RCA CTC177AG > > > > > > > > Set was given to me after customer had it at another shop. > Set > had > > > > Vertical Line. Changed Vertical ic, Resistor network, checked cap > and > > > > resistors.... Finally changed eeprom . Now has vertical but is > folded > > > over > > > > on top. Also the Channel #'s and Video menu roll. Have attempted > > Vertical > > > > adjustments (DC) in Service menu but not effective. Any Ideas > (26" > > set) > > > > > > > > > > > > Peter Oliver > > > > Tucson Radio TV > > > > > > > > _________________________________________________________________ > > > > Protect your PC - get McAfee.com VirusScan Online > > > > http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > > > > > > > > > > > > > > **************************************************************************** > > > * > > > > Classifieds! 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