The 237506 is used on the ctc197 chassis, if that helps. John Myers Myers TV Service Since 1984 Alliance, OH ph 330-821-6545 ----- Original Message ----- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, April 06, 2004 4:32 PM Subject: [TechAssist] Re: RCA Flyback 237506(fixed!) > I sure would like to know what was fixed Chassis #?? > Phillip R Hull STET > phil245@xxxxxxxxxxxxx > FAX 517--569-3075 > Professional Technicians only > ----- Original Message ----- > From: "Jim Shupe" <jim@xxxxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Tuesday, April 06, 2004 4:13 PM > Subject: [TechAssist] Re: RCA Flyback 237506(fixed!) > > > > John... > > > > This is a newer foil pattern that doesn't have the > > jumper... I've never had one inadvertently come off > > with my solder-sucking anyhow, but I've read the sheet > > that comes with the part. > > > > I guess I just had a brain fart last week and missed > > the most elemental possibility(which you pegged). The > > last shorted CRT spark-gap short I had was on a fairly > > new Zenith Chroma Color II, so I guess it drifted out > > of my head as a possibility. > > > > I checked with my ohmmeter when I got to the shop > > this morning and couldn't detect the short, but when I > > lifted the 2.2K series resistor to the G2 land, I got > > screen supply(I should have done that last week- I > > know better!). Once I removed the socket, I could see > > the burn on the board, on the socket at G2 and at > > ground. > > > > Anyway the set's fixed, I feel properly chagrined, > > and the customer's happy. > > > > Thanks for the tip, John, and thanks to everyone > > else who took the time to respond. > > > > Jim Shupe, CET > > Lloyd's TV > > Yucca Valley, CA > > > > An > > > > --- "John @ Myers TV" <myers_tv@xxxxxxxxxxxxx> wrote: > > > Jim, > > > > > > I just changed one since I e-mailed you. > > > > > > There is a chip jumper between pins 7 & 8 of the > > > fly. No video is one of the > > > symptoms if the jumper is missing. > > > > > > John Myers > > > Myers TV Service Since 1984 > > > Alliance, OH > > > ph 330-821-6545 > > > ----- Original Message ----- > > > From: "Jim Shupe" <jim@xxxxxxxxxxxxx> > > > To: <techassist@xxxxxxxxxxxxx> > > > Sent: Tuesday, April 06, 2004 10:36 AM > > > Subject: [TechAssist] Re: RCA Flyback 237506 > > > > > > > > > > John.. > > > > > > > > No, this one doesn't have the jumper. I am going > > > to > > > > check the CRT socket though, as it's still > > > connected. > > > > Thanks for the input! > > > > > > > > BTW.. the original was shorted, but still rang > > > good > > > > with my trusty Heathkit ringer. I think this is > > > common > > > > with this family of IHVT's. > > > > > > > > Jim Shupe, CET > > > > Lloyd's TV > > > > Yucca Valley, CA > > > > > > > > > > > > --- "John @ Myers TV" <myers_tv@xxxxxxxxxxxxx> > > > wrote: > > > > > Jim, > > > > > > > > > > I just had one like that that turned out to be a > > > > > shorted CRT socket. > > > > > Also, is this the one that has the jumper > > > between > > > > > the two pins on the fly? > > > > > those have a nasty habit of "disappearing" while > > > > > resoldering. > > > > > > > > > > John Myers > > > > > Myers TV Service Since 1984 > > > > > Alliance, OH > > > > > For Professional Technicians ONLY > > > > > ph 330-821-6545 > > > > > > > > > > ----- Original Message ----- > > > > > From: "Jim Shupe" <jim@xxxxxxxxxxxxx> > > > > > To: <techassist@xxxxxxxxxxxxx> > > > > > Sent: Tuesday, April 06, 2004 10:11 AM > > > > > Subject: [TechAssist] RCA Flyback 237506 > > > > > > > > > > > > > > > > Hey Guys... > > > > > > > > > > > > Has anyone had problems lately with this > > > > > part(new) > > > > > > or am I just getting dumb in my old age? > > > > > > I have installed two new IHVT's in this set > > > and > > > > > both > > > > > > had no screen voltage output. The heaters, HV, > > > > > > secondary supplies are all there. > > > > > > To my knowledge, the screen output is > > > totally an > > > > > > internally derived voltage(at least in RCA). > > > > > > BTW.. I removed everything from the screen > > > > > output to > > > > > > eliminate possible shorts. > > > > > > > > > > > > This has me baffled as I have never had a > > > > > problem > > > > > > with a new RCA fly. > > > > > > > > > > > > > > > > > > Jim Shupe, CET > > > > > > Lloyd's TV > > > > > > Yucca Valley, CA > > > > > > > > > > > > > > > > > > > > > > > > > > -------------------------------------------------------------------------- > > > > > --- > > > > > > 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/ > > > > > > -------------------------------------------------------------------------- > --- > > 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?". 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