Isn't ground equal to zero volts? Kevin Wilks Kevin's TV & Video Repair Penticton BC Canada kevintv@xxxxxxx -----Original Message----- From: techassist-bounce@xxxxxxxxxxxxx [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tony saracco Sent: Monday, October 20, 2003 5:36 PM To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: RCA F27672ET CTC187BD2 no, with a G2 short its voltage is at 0 volts just like turning down the G2 all the way and getting a dark pix, if the 200v source were to go to ground the pix would go very brite w/ retrace. Tony Saracco TCS ELECTRONICS Elgin , IL 60120 847-695-1928 tcselectronics@xxxxxxxxxxxxxxxx ----- Original Message ----- From: "Kevin" <kevintv@xxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Monday, October 20, 2003 3:48 PM Subject: [TechAssist] Re: RCA F27672ET CTC187BD2 > Wouldn't a G2 short make the picture go very bright? > > Kevin Wilks > Kevin's TV & Video Repair > Penticton BC Canada > kevintv@xxxxxxx > > > -----Original Message----- > From: techassist-bounce@xxxxxxxxxxxxx > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Terry H. > Sent: Monday, October 20, 2003 1:21 PM > To: techassist@xxxxxxxxxxxxx > Subject: [TechAssist] Re: RCA F27672ET CTC187BD2 > > Neil, you most likely have a G2 short and is easily removed. Pull the > crt > board, put a clip lead on the G2 pin the other end to a long > screwdriver. > Fire the set up then off. Discharge the crt into that pin. If it doesn't > work the first time, do it again. The crt is already toast so you don't > have > alot to lose. Before trying all this, check the G1 pin when it's > happening. > Should be around 21 volts or so. If you're getting more than 100, then > the > G1 bypass cap is bad. HTH > Terry H. > The TV Shop > Gonzales, Tx > > ----- Original Message ----- > From: "Kevin" <kevintv@xxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Monday, October 20, 2003 3:04 PM > Subject: [TechAssist] Re: RCA F27672ET CTC187BD2 > > > > I have seen this problem with Zenith picture tubes, and the cause is a > > bad connection inside the picture tube. I have seen it twice with 20" > > RCA's. HTH > > > > Kevin Wilks > > Kevin's TV & Video Repair > > Penticton BC Canada > > kevintv@xxxxxxx > > > > > > -----Original Message----- > > From: techassist-bounce@xxxxxxxxxxxxx > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Neil Bowman > > Sent: Monday, October 20, 2003 12:23 PM > > To: techassist@xxxxxxxxxxxxx > > Subject: [TechAssist] RCA F27672ET CTC187BD2 > > > > I worked on this unit last week for bowed picture and it turned out > that > > cc4407 was the problem. Set worked fine for 2 days in shop. Customer > > takes it home and calls the next day and says that the picture is goes > > very dark. I put it on my bench with nice picture, then 5 minutes > later > > it went dark. Screen control is ok, it adjusts, just very dark video. > > Even the menu is very dark. I tried freezing to bring video back, but > no > > go. Any tips on this one? Neil > > > > Tv Doctors > > Monroe,Wa > > > ************************************************************************ > > ***** > > Classifieds! Buy or Sell! > > http://sell.tech-assist.org > > The Tech Address Book: > > http://www.tech-assist.org/secure/tip/contact.htm > > Add a Repair Tip Here, or Change/Remove your Email Address: > > http://www.tech-assist.org/secure/tip/main.htm > > Lost Password: > > http://www.tech-assist.org and select "Lost your Login Info?". > > Email Archives: > > //www.freelists.org/archives/techassist/ > > > > > ************************************************************************ > **** > * > > Classifieds! 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