Bridge the fuse, and see what catches fire. And that is your issue. :) On Dec 24, 2017 5:22 AM, "Beniamino Cenci Goga" <ben...@gmail.com> wrote:
> Yes, I have replaced: > > -) the group of leaking caps > > -) IC TDA 4605 > > -) opto isolator > > -) mosfet (it goes bad any time the fuse blows) > > when he fuse blows, I think that also something else, besides the mosfet, > goes bad. > > > bcg > > On Dec 24, 2017, at 10:25 AM, Hardware Mack <hardwarem...@gmail.com> > wrote: > > Opto isolater can go bad for classic ab's > > On Dec 24, 2017 3:54 AM, "Beniamino Cenci Goga" <ben...@gmail.com> wrote: > >> Thank you! Yes I have replaced all leaking caps and it has worked >> flawlessly for a day or 2. Then suddenly it blown the fuse. >> >> bcg >> >> On Dec 24, 2017, at 9:51 AM, Hardware Mack <hardwarem...@gmail.com> >> wrote: >> >> Replace caps on ab.... leaakers... espica lly on smps output side... >> >> On Dec 24, 2017 3:43 AM, "Beniamino Cenci Goga" <ben...@gmail.com> wrote: >> >>> This Classic was showing the usual video artifacts due to bad capacitors. >>> >>> So I replaced the group of capacitors which are known to cause the video >>> problem and an IC, the TDA4605. The Mac has worked flawlessly for a day or >>> 2 and suddenly started blowing fuses. >>> >>> I replaced the mosfet but still no luck. >>> >>> Any idea why it started blowing the fuse two days after the replacement, >>> but not immediately after it? >>> >>> bcg >>> >>> >>> bcg >>> >>> -- >>> -- >>> ----- >>> You received this message because you are a member of the Vintage Macs >>> group. >>> The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our >>> netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml >>> To post to this group, send email to vintage-macs@googlegroups.com >>> To leave this group, send email to vintage-macs+unsubscribe@googl >>> egroups.com >>> For more options, visit this group at http://groups.google.com/group >>> /vintage-macs >>> >>> Support for older Macs: http://lowendmac.com/services/ >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Vintage Macs" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to vintage-macs+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> -- >> ----- >> You received this message because you are a member of the Vintage Macs >> group. >> The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our >> netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml >> To post to this group, send email to vintage-macs@googlegroups.com >> To leave this group, send email to vintage-macs+unsubscribe@googl >> egroups.com >> For more options, visit this group at http://groups.google.com/group >> /vintage-macs >> >> Support for older Macs: http://lowendmac.com/services/ >> --- >> You received this message because you are subscribed to the Google Groups >> "Vintage Macs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to vintage-macs+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> -- >> ----- >> You received this message because you are a member of the Vintage Macs >> group. >> The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our >> netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml >> To post to this group, send email to vintage-macs@googlegroups.com >> To leave this group, send email to vintage-macs+unsubscribe@googl >> egroups.com >> For more options, visit this group at http://groups.google.com/group >> /vintage-macs >> >> Support for older Macs: http://lowendmac.com/services/ >> --- >> You received this message because you are subscribed to the Google Groups >> "Vintage Macs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to vintage-macs+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to vintage-macs+unsubscribe@ > googlegroups.com > For more options, visit this group at http://groups.google.com/ > group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to vintage-macs+unsubscribe@ > googlegroups.com > For more options, visit this group at http://groups.google.com/ > group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
