Yes Charles thanks for the reminder had one like that a while back. Will change the transistor on the CRT board. It is a small signal type if I recall. My mind is going , memory is bad lately. thanks Bruce. ----- Original Message ----- From: "repair1" <repair1@xxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, November 15, 2002 1:25 PM Subject: [TechAssist] Re: Fw: Zenith TV (SM2771S) NO video retrace lines bright screen ! > > I am sorry that I did not se all of your post header, If you have bright > lines and no video, check collectors of video drivers on crt board, if v > absent trace backwards and find supply, also there is a small transitor on > crt board that will cause similar symptoms, hth. > > charles betzler > Best Electronics > repair1@xxxxxxxxxxxxx > > > > ----- Original Message ----- > From: "repair1" <repair1@xxxxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Friday, November 15, 2002 10:31 AM > Subject: [TechAssist] Re: Fw: Zenith TV (SM2771S) NO video retrace lines > bright screen ! > > > > > > If unit has comb filter look for bad connections,hth. > > > > charles betzler > > Best Electronics > > repair1@xxxxxxxxxxxxx > > > > > > ----- Original Message ----- > > From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx> > > To: "Techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx> > > Sent: Friday, November 15, 2002 9:25 AM > > Subject: [TechAssist] Fw: Zenith TV (SM2771S) NO video retrace lines > bright > > screen ! > > > > > > > > > > > > > > > > > Fellow Tech's, > > > > > > > > Zenith SM2771S No video. (9-1447) Print needed. > > > > > > > > Hope some one can share a partial print, of video section. I am > working > > > off > > > > a print for a SL 2767 and is close but not the same. I have a video > > signal > > > > to the Q1200 but from there can't follow. I have replaced the video > > > > processor IC, LA 7672 still same problem. This schematic shows video > to > > > pin > > > > 42 of the mentioned IC but there is none , Suspect video transistor. > > > > > > > > thanks > > > > Bruce > > > > > > > > B&T Electronics > > > > 139 Margaret St > > > > Sarnia Ontario > > > > Canada > > > > N7T 2Y3 > > > > (519) 344-1850 > > > > btied@xxxxxxxxxxxx > > > > > > > > > > > > > ------------------------------------------ > > > To REMOVE your email address, click here: > > > http://www.tech-assist.org/unsubb.html > > > To CHANGE your email address, click here: > > > http://www.techassist.net/forms/change.html > > > ------------------------------------------ > > > ***NEW*** Tips Added Instantly!!!*** > > > Submit Repair Tips here: > > > http://www.tech-assist.org/secure/tip/ > > > > ------------------------------------------ > > To REMOVE your email address, click here: > > http://www.tech-assist.org/unsubb.html > > To CHANGE your email address, click here: > > http://www.techassist.net/forms/change.html > > ------------------------------------------ > > ***NEW*** Tips Added Instantly!!!*** > > Submit Repair Tips here: > > http://www.tech-assist.org/secure/tip/ > > ------------------------------------------ > To REMOVE your email address, click here: > http://www.tech-assist.org/unsubb.html > To CHANGE your email address, click here: > http://www.techassist.net/forms/change.html > ------------------------------------------ > ***NEW*** Tips Added Instantly!!!*** > Submit Repair Tips here: > http://www.tech-assist.org/secure/tip/ > ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/