Re: K2600RS Blue Screen but power and clock crystals good
| Newsgroups | gmane.music.equipment.kurzweil |
|---|---|
| Message-ID | <[email protected]> |
Usual source of problems :-) I replaced PSU caps in all my machines older than 20 years… Daniel Forro > On Oct 18, 2018, at 10:24, 'Mark & Mary Ann Weiss' [email protected] [KurzList] <[email protected]> wrote: > > > During additional testing, I discovered the Power_Good line was pulsing negative at 120 Hz. I traced back the sample to a unregulated DC rectifier. Pulling that line high caused the K2600 to boot up. > I think it's dried out capacitors. So I'm replacing all capacitors in the power supply. The large one, 33,000uF, is reading 21,000 on a GenRad Digi-bridge.