According to the SM the 3amp fuse is a Time lag fuse and the 1.2A is a regular fuse. Phillip R Hull STET phil245@xxxxxxxxxxxxx FAX 517--569-3075 Professional Technicians only ----- Original Message ----- From: <support@xxxxxxxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, December 30, 2003 2:04 PM Subject: [TechAssist] Re: TA Samsung TC2540S..R415 open..FBT replaced 1 month ago > Negative... > I thought of that, but this set says 1.2 amp, fast/blow right on the PCB. > Plus, if that was the problem, wouldn't it blow right away? Now this set will work for a few minutes > before the fuse goes. > Thanks anyways, guys. > > Jeff Dougherty > Intrepid Video TV/VCR > 263 S Front St > Steelton PA 17113 > fax...717-564-4952 > www.intrepid-video.com www.tech-repair.net > > ----- Original Message ----- > From: "Doug Keller" <dek@xxxxxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Tuesday, December 30, 2003 12:29 PM > Subject: [TechAssist] Re: TA Samsung TC2540S..R415 open..FBT replaced 1 month ago > > > I agree. I had one awhile back that was doing the same thing. They are a > "slo-blo" or time delay or something, but not a regular fuse. There is > probably no problem with the set. > > Doug Keller > Wis-Kel Electronics > 101 Freeland Ave. > Terra Alta, WV > USA 26764 > dek@xxxxxxxxxxxxxx > http://www.tech-assist.org > "Learn from the mistakes of others, because you > won't live long enough to make them all yourself" > > > > Phillip R. Hull wrote: > > >Most all of those Samsungs use a Time delay fuse > >Phillip R Hull STET > >phil245@xxxxxxxxxxxxx > >FAX 517--569-3075 > >Professional Technicians only > >----- Original Message ----- > >From: <support@xxxxxxxxxxxxxxxxxx> > >To: <techassist@xxxxxxxxxxxxx> > >Sent: Tuesday, December 30, 2003 12:13 PM > >Subject: [TechAssist] TA Samsung TC2540S..R415 open..FBT replaced 1 month > >ago > > > > > > > > > >>This set is back again.,.. > >>This time the 1.2 amp fuse is open. Customer said it failed when she > >> > >> > >pressed the power button. I found an > > > > > >>intermittent trace from R415. Now set will stay on for a few minutes, then > >> > >> > >the fuse opens. > > > > > >>I suspect the FBT which I got from ASTI, but I would think the HOT would > >> > >> > >go also. > > > > > >>I have no schematic, but I checked every thing I could find in the HV > >> > >> > >section..resistors, diodes, etc., > > > > > >>but can find no problems. I have tried to troubleshoot this thing, but I > >> > >> > >keep going through fuses to > > > > > >>quick. > >>Should I order another FBT? > >>Thank you. > >> > >> > >> > >>Jeff Dougherty > >>Intrepid Video TV/VCR > >>263 S Front St > >>Steelton PA 17113 > >>fax...717-564-4952 > >>www.intrepid-video.com www.tech-repair.net > >> > >>----- Original Message ----- > >>From: <support@xxxxxxxxxxxxxxxxxx> > >> > >>I repaired this set exactly one month ago. > >>Replaced the FBT with a generic from Acme Sales...(Don't say it). Also, > >> > >> > >replaced the fuse, HOT and R415. > > > > > >>Got a call today the set was dead again, just clicked on, then clicked off > >> > >> > >when pressing power. > > > > > >>Went over this evening to find R415 (.47/1w) open again and burnt. I > >> > >> > >replaced it with a .39 ohm and the > > > > > >>set worked. The color bands were burnt on this. > >>The B+ goes through this resistor. > >>I felt the resistor after running the set for a while and it didn't get > >> > >> > >real hot. > > > > > >>Question, could a faulty flyback cause this or a marginal reg? > >>Is it possible the lower value I used may increase the longevity of this > >> > >> > >component? > > > > > >>Thank you. > >> > >> > >> > >> > >*************************************************************************** * > >* > > > > > >>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/ > > > > > > > > > > > **************************************************************************** * > 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/ > > ***************************************************************************** Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/