Re: 19V2000 blowing F101 and F102

Robert Bayes wrote:
>
> Nevermind. I cleaned the HV diode connections and put a little
> pigtail in each end of the diode so it would make better connection.
> Now it’s a rock steady 14kV. John Robertson tried to help me with
> this monitor ten years ago and I never got back to him. Although I
> suspect you don’t remember and I hope you’re not mad John but, I had
> to drop it due to RL intervention. However, I used the B&W Vector
> Monitor FAQ guide to help me so, in a way, you were still helping me
> since you contributed to the FAQ.
>
>
>
> A very belated thanks.
>
>
>
> Robert
>
>
>
>
>
Glad to help - even if it was years ago!

HV diodes and their connections can lead to interesting things happening
with the HV cages. A bad connection to the diode or failing diode can
generate a surprising amount of heat - enough to char the rubber
shield(s) on the connector!

John :-#)#
>
>
>
> ------------------------------------------------------------------------
>
> *From:* owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] *On Behalf Of *Robert Bayes
> *Sent:* Tuesday, November 08, 2011 3:34 PM
> *To:* vectorlist@vectorlist.org
> *Subject:* RE: VECTOR: 19V2000 blowing F101 and F102
>
>
>
> Okay, so I did a HV cap kit; replaced the HV rectifier with an VARO
> 1812 diode and replaced the bridge rectifier. It no longer blows a
> fuse but, it is blooming like a pulsating heart and I only read about
> 7KV of high voltage. I cannot adjust it any higher. Can someone
> suggest something else?
>
>
>
> Thanks.
>
>
>
>
>
> ------------------------------------------------------------------------
>
> *From:* owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] *On Behalf Of *Robert Bayes
> *Sent:* Friday, November 04, 2011 11:55 AM
> *To:* vectorlist@vectorlist.org
> *Subject:* VECTOR: 19V2000 blowing F101 and F102
>
>
>
> I have a 19V2000 in an Asteroids Deluxe and, after about ten minutes,
> it blows F101 and F102. Looking at the prints, it seems that it feeds
> the 38V to the high voltage board. The surprising thing is that it
> blows both a 5 amp and the 1 amp fuse with only a diode separating
> them. Since this is heat related, I'm looking for suggestions as to
> what's likely to need replacement based on the experience of the
> community around here. I haven't put a cap kit on it yet but, what
> else should I look for?
>
>
>
> Does the bridge rectifier (DB100) fail often? How about C900? Does
> that ever fail shorted?
>
>
>
> Many thanks.
>

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Tue Nov 8 18:38:55 2011