Forums - Print Page

Forums
https://www.decware.com/cgi-bin/yabb22/YaBB.pl
AUDIO FORUMS >> General Discussion and Support >> ZP3 not powering up
https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1617362907

Message started by Isoarch on 04/02/21 at 12:28:27

Title: ZP3 not powering up
Post by Isoarch on 04/02/21 at 12:28:27

My ZP3 stopped working a few weeks ago following a buzzing sound and a flickering of the rectifier tube. Prior to that, it has done the same thing, but would power up after shut off.

Since the rectifier tube is what I last saw flicker, I ordered a replacement (5U4G), but that did nothing. I read in a thread that it might be the voltage regulator, so I ordered one of those. That also did nothing. I’m thinking the power supply has failed. I have the unit connected to a surge protector, along with all my other equipment, which is operating normally.

Thoughts?

Title: Re: ZP3 not powering up
Post by Lon on 04/02/21 at 13:06:40

You could check inside, there may be a fuse for the rectifier on a small circuit board which has failed. I know that these fuses are inside in my newest components but I have not had a ZP3 for a long time and don't know if they have been incorporated in that component or when. . . . A call in to Steve is your best bet regardless.

Title: Re: ZP3 not powering up
Post by Archie on 04/02/21 at 20:46:05

I don't think there is an internal fuse. My ZP3 is 5 years old or so but has had all of the recent modifications. Not sure it the newer units have internal fuses. It's very easy to look inside to check.

Title: Re: ZP3 not powering up
Post by Steve Deckert on 04/02/21 at 22:59:50

There are no internal fuses in the ZP3.

There is an external fuse located in the IEC power cord socket which is obviously blown.

Title: Re: ZP3 not powering up
Post by Isoarch on 04/03/21 at 05:41:31

Thank you all for the responses. Steven had it right, the fuse was blown. Thank you for including an extra fuse in the cap!

This reiterated how much of a difference the ZP3 makes over the built in phone stage on my Peachtree amplifier...