R724 = PN 0114177, CF 4.7k 5% 1/4w George Afana Electronics Moreno Valley, CA ----- Original Message ----- From: "Al Gutz" <alg@xxxxxxxxxxx> To: "tech assist" <techassist@xxxxxxxxxxxxx> Sent: Monday, December 08, 2003 7:45 PM Subject: [TechAssist] Hitachi PTV 50EX20B Chass AP52 Part ID > > Looking for the value of R724, cooked beyond recognition. > > Loc. off return side of yoke plugs through L710 and L711 to R724 and > L706 in parallel then connect to R723 to C730 to B+ at T703. > > I think I burnt this running it without the yokes connected. All power > suypplies are good and I have a good wave on both vert IC and HOT base. > > Looked at hitachi site and found some block diagrams for this set but no > SM. This set is susposed to be in SM for 50EX15K. These manuals are too > big to try download on phone modem, you get 15 meg down after 2 hours > and loose connection then you take the axe to the computer. > > Something strange happened this set as there is a peice of copper > blasted off the board on the line feeding the speaker and the audio O/P > IC is shorted. Dont think the B+ feeding the audio has the potential to > blow off a 1/8" wide peice of trace. > > Any hepl much appreciated. > > Al G > Al's TV-Electronics > Pembroke Ont. > Canada > > **************************************************************************** * > 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/