Recent content by Gregory K

Great, thank you very much for these links! Merry Christmas and Happy New Year! :)

Great, thank you very much for your detailed and very interesting info! If you don't mind, I only have one more newbie question left: According to Panasonic EB series specifications, these capacitors provide "Hight ripple hight frequency (High Voltage)" feature. With this in mind, is it good...

Thank you very much to everybody for your informative answers! Since using Low Impedance caps in the PSU would improve a reliability of the Mac, I think I can replace ALL capacitors with Low Impedance ones, except the big capacitor (400V 620 uF), which will be replaced by Nichicon GL (400V 680...

Dear forum members, I'm going to recap a Macintosh SE Power Supply (made by Sony). The original capacitors are made by Rubycon, but I can't find any info on them. Should I replace them with "regular" capacitors, or will it be better to use Low Impedance capacitors? I would appreciate any...

Unfortunately, the problem still exists even with the original Quantum 40Mb HDD (1 partition)..

Thank you to everyone for your attention, I appreciate it very much! The bug "seems" like an issue with the disk interface: Sometimes, after deleting / moving a file on a hard disk, the 'Disk First Aid' software reports errors on the disk (usually about files attributes). Then, the software is...

Dear forum members, There is a blue capacitor made by Richey (10uF 160V, 85 degrees) on my Mac SE Analog Board. Does anyone know if it can be replaced by a regular capacitor, or there are some special requirements (low-esr, for example)? I think the choice of brand can reflect something. Thank...

Thanks a lot for your information! I'm trying to fix an intermittent bug, so I think to change all electrolytic capacitors inside the machine.

Oh, great! Thank you for your reply   :)

Dear forum members, I'm about to replace capacitors on a Logic Board of my Macintosh SE FDHD. Unlike later SE/30 models, the Macintosh SE Logic Board has axial capacitors installed. They are Nichicon SE (blue color). The problem is I can't find any information about the discontinued "SE"...

Great, thank you for your answers!

Thank you for your reply! Are there any circumstances in which the Internal HDD termination should be disabled (on Macintosh SE FDHD)?

Dear forum members, According to SCSI requirements, the first and the last devices in a SCSI chain should be terminated. Since I have Iomega ZIP drive connected to the external SCSI port, there are 3 SCSI devices in a chain: 1. Macintosh SE FDHD itself - SCSI controller on the motherboard...