Re: Question regarding 19K6100 HV Transformer....

Grab a copy of the Greg Woodcock faq
http://www.joesarcade.com/schematics/gwoodcock_xyhelp.txt

Look for your HV range. Chances are you may have something else wrong.

JB

Stempak Arcadius-ASTEMPA1 wrote:

> Greg,
> ^^^^^
>
> Thank you for the input and you are
> absolutely right, what choice do I have, eh...:-)
>
> By the way and with this in mind, I have
> another no so quick question, but have to
> ask if by some chance could this loose Ferrite
> Core could somehow impact the total output, of the
> HV Transformer, I.E. I can only get about 17.8 KV
> out of this unit, and actually Range the HV from 14.4KV
> to 17.8KV (Max).
>
> I will say that I have Verified All parts in the HV
> Cage as good, and also add that when Power is applied
> the Monitor Powers up in less than 30 Seconds, from
> a Cold Start, with a decent and stable picture.
>
> Also verified 147.8 VDC at ZD902, 555 Timer Output,
> is at 20Khz (Square Wave), etc...
>
> Have not totally ruled out the Deflection (Low Voltage) Board
> and while on the subject, wondered if by some freak chance this
> issue might somehow impact total HV Output ???
>
>
> Thanks.....
> Arcadius...... :-)
>
> -----Original Message-----
> From: Gregg Woodcock [mailto:woodcock@sisna.com]
> Sent: Monday, September 09, 2002 10:07 PM
> To: vectorlist@synthcom.com
> Subject: Re: VECTOR: Question regarding 19K6100 HV Transformer....
>
> ----- Original Message -----
> From: "Stempak Arcadius-ASTEMPA1" <ASTEMPA1@motorola.com>
> To: <vectorlist@synthcom.com>
> Cc: "Stempak Arcadius-ASTEMPA1" <ASTEMPA1@motorola.com>
> Sent: Monday, September 09, 2002 7:56 PM
> Subject: VECTOR: Question regarding 19K6100 HV Transformer....
>
> >
> > All,
> > ****
> >
> > Have a Curious more than anything else,
> > type of Question, as I myself have not
> > witnessed such an event in the past.
> >
> > The other day I was working on (Repairing)
> > the HV Cage from my Old X/Y -- 19K6100 Monitor.
> >
> > When turning the Cage Upside Down, to expose
> > the bottom of the PCB I noticed a click, or
> > at least what sounded like a click. I then
> > flipped the Cage over and heard this click
> > again.
> >
> > Hmmmm..... well it appears that the Ferrite Core
> > (if that is what is) inside the HV Transformer
> > is loose and tends to move, side to side.
> >
> > Question is, what if any impact does this have
> > to the life expectancy of the HV Transformer itself ???
> >
> > Also is this normal, or did this happen due to age ???
>
> I see this a LOT. In fact, I have seen several where the core has
> rotted/decayed so much that whatever the rod screws into is just gone; the
> rod falls out if you turn it upside down. I just RTV it into place and I've
> never seen one die from it (although all of mine get light use). It can't
> be "good" but doesn't appear to be "bad". Besides; what choice do you have?
>
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Received on Mon Sep 9 22:55:24 2002