I took some voltages on that chip and all are ok except pins# 18 that has 4volt and I think should be 7.1v . pin #19 #20 and#21 is .9volts and should be around 3v . pin# 46 and 47 has .4v and should be 2.3v . I used a service manual for KCT52B to compare voltages on Ic 201 in that one so I'm not right sure . I'm beginning to think Ic 201 is the problem . Thanks again for the help . Regards . Barry . >From: "Shoreline Electronics" <jstielau@xxxxxxxx> >Reply-To: techassist@xxxxxxxxxxxxx >To: <techassist@xxxxxxxxxxxxx> >Subject: [TechAssist] Re: Samsung TXJ2554 chassis# K51A >Date: Wed, 10 Oct 2001 07:42:05 -0400 > > >If it turns out you need that IC try these guys....that Samsung price seems >a little steep! > >Universal Semi 1-800-222-2321 >B & D 1-800-458-6053 > >Jeff Stielau >Shoreline Electronics Repair >125 Beechtree Lane >Westbrook,CT 06498 >860-399-1861 Voice >860-664-3535 Fax >jstielau@xxxxxxxx > >----- Original Message ----- >From: "Barry Appleby" <burintv@xxxxxxxxxxx> >To: <techassist@xxxxxxxxxxxxx> >Sent: Tuesday, October 09, 2001 11:01 PM >Subject: [TechAssist] Re: Samsung TXJ2554 chassis# K51A > > > > > > Thanks Jeff . I forgot to mention that there is video on the cathodes . >I > > don't know if it has the correct peak-to-peak value as I don't have >prints > > for it but it looks to me to be in the ball park . I also checked the > > picture tube with the cr70 and it test good but I didn't think it was >bad > > so I went ahead and checked it anyway . > > > > > > >From: "Shoreline Electronics" <jstielau@xxxxxxxx> > > >Reply-To: techassist@xxxxxxxxxxxxx > > >To: <techassist@xxxxxxxxxxxxx> > > >Subject: [TechAssist] Re: Samsung TXJ2554 chassis# K51A > > >Date: Tue, 9 Oct 2001 22:18:38 -0400 > > > > > > > > >Problem : No Video Blank Raster If Screen Turned Up > > > > > >Fix : Ic201 Tda8377a Samsung # 1204-001170 $47.95 > > > > > >Do you have video information on the cathodes? > > > > > > > > >Jeff Stielau > > >Shoreline Electronics Repair > > >125 Beechtree Lane > > >Westbrook,CT 06498 > > >860-399-1861 Voice > > >860-664-3535 Fax > > >jstielau@xxxxxxxx > > > > > >----- Original Message ----- > > >From: "Barry Appleby" <burintv@xxxxxxxxxxx> > > >To: <techassist@xxxxxxxxxxxxx> > > >Sent: Tuesday, October 09, 2001 10:10 PM > > >Subject: [TechAssist] Samsung TXJ2554 chassis# K51A > > > > > > > > > > > > > > This tv has sound but no raster or osd [totally black screen] . High > > >voltage > > > > and focus is ok and the heater voltage is 6.3v . The 200v on the crt >is > > >ok > > > > and the RK , BK and GK all have approximately 190v . The screen >voltage > > >will > > > > only go to 165v . With the crt board removed it's the same . I >removed > > >the > > > > screen connection at crt and measured the resistance to gnd and it > > >adjusts > > > > from 1.8meg to 30meg . I also replaced c518 the 103z/3kv screen cap >. > > >Could > > > > this be a bad flyback ? The customer told me the picture would >appear > > >once > > > > and a while when it first started to act up but now it doesn't . >Thanks > > >. > > > > Barry Appleby > > > > Burin Tv Repair > > > > burintv@xxxxxxxxxxx > > > > Burin NFLD > > > > > > > > _________________________________________________________________ > > > > Get your FREE download of MSN Explorer at > > >http://explorer.msn.com/intl.asp > > > > > > > > Help make your TechAssist online repair tips > > > > database better! Submit your fixes here: > > > > http://www.circuitwork.com/techassist/tip/#tips > > > > To unsubscribe write to: > > > > techassist-request@xxxxxxxxxxxxx > > > > with unsubscribe in the subject line. > > > > > > > > > >Help make your TechAssist online repair tips > > >database better! Submit your fixes here: > > >http://www.circuitwork.com/techassist/tip/#tips > > >To unsubscribe write to: > > >techassist-request@xxxxxxxxxxxxx > > >with unsubscribe in the subject line. > > > > > > _________________________________________________________________ > > Get your FREE download of MSN Explorer at >http://explorer.msn.com/intl.asp > > > > Help make your TechAssist online repair tips > > database better! Submit your fixes here: > > http://www.circuitwork.com/techassist/tip/#tips > > To unsubscribe write to: > > techassist-request@xxxxxxxxxxxxx > > with unsubscribe in the subject line. > > > >Help make your TechAssist online repair tips >database better! Submit your fixes here: >http://www.circuitwork.com/techassist/tip/#tips >To unsubscribe write to: >techassist-request@xxxxxxxxxxxxx >with unsubscribe in the subject line. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.