I am looking into overhauling the analog and Sony PSU's. I am thinking of replacing the capacitors for both units. Any advice on what other components to replace, such as transistors, perhaps upgrading them with better parts? I will also see if I can find a NOS flyback transformer.
Regarding the Sony unit I am thinking about replacing the internals with a small form factor PSU. My intent with replacing the Sony internals is to hopefully supply the logic board with more power to support various upgrades/add-ons with greater stability. Any EE's out there have advice on what to look out for when selecting a replacement power supply? The main issue (besides unknown risks to doing this) is it is tricky to find a supply with 2 separate +12V rails, along with the other voltages, that is not too big or too expensive. +5v = 6.0A +12Vsweep = 1.25A +12Vdisk = 2.1A -12V = 0.5A Here is an example of the type of PSU I am considering (does not have truly separate +12V rails): http://www.hardwaresecrets.com/article/Seasonic-SS-300TFX-Power-Supply-Review/1021/2 I am aware of the dangers of working with high voltage equipment. Thanks, Thom -- -- ----- 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/groups/opt_out.