Jeff, I have scoped the H.O.T collector and looks distorted , driver transistor output is clean , If I keep turning the set on , R5A28 starts to burn, with is off the ACL line from flyback pin# 8 . I am not sure of the value of this resistor. It now measures about 65K. If pin 8 is the low side of the internal HV diodes , then maybe I am dealing with a bad fly. I think the burning of R5A28 should be clear clue as to where the problem is. I am still working without a schematic. Tom Berger Tri-County TV Robbinsville North Carolina 28771 Ph--828-479-6043 Fax-828-479-4868 (tricountytv@xxxxxxxxxxxxx) ----- Original Message ----- From: "Shoreline Electronics" <jstielau@xxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Monday, January 23, 2006 12:27 PM Subject: [TechAssist] Re: Need VS-4544 schematic > Can you scope the collector at startup and see if the pulse is clean or > distorted? > > Keep in mind , these sets have a discrete Horizontal Output section and a > HV > section. > > ========================== > Jeff Stielau > Shoreline Electronics Repair > 344 East Main Street > Clinton,CT 06413 > 860-399-1861 > 860-664-3535 (fax) > jstielau@xxxxxxxx > ======================== > > ----- Original Message ----- > From: "Tri-County Tv" <tricountytv@xxxxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Monday, January 23, 2006 12:18 PM > Subject: [TechAssist] Need VS-4544 schematic > > >> Hello everybody, >> I am in desperate need for a schematic and any >> repair tips for this old Mitsubishi Big screen. It shuts down at turn on, >> and draws heavy current from H.O.T I suspect the flyback but it rings >> good >> so maybe a shorted internal high voltage diode. I have a feeling this >> will >> be very hard to find. I am ready to put a match to this dog! I think the >> chassis is VZ3 Any help would be greatly appreciated. >> Thomas Berger >> Tri-County TV >> Robbinsville >> North Carolina 28771 >> Ph--828-479-6043 >> Fax-828-479-4868 >> (tricountytv@xxxxxxxxxxxxx) >> ----------------------------------------------------------------------------- >> This Email List is accessible to the general public through search >> engines. Remove: http://www.tech-assist.org/remove.htm >> Set Vacation >> mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation >> Lost Password: http://www.tech-assist.org and select "Login Problems?". >> Email Archives: //www.freelists.org/archives/techassist/ >> > > ----------------------------------------------------------------------------- > This Email List is accessible to the general public through search > engines. Remove: http://www.tech-assist.org/remove.htm > Set Vacation > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/