[Heathkit] SB-614 wierd traces - HELP!

[Paul Kraemer]

Sandy
Sounds like maybe the retrace blanking is not doing it's thing
Paul K0UYA

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From: "Alexander N. Gerli" <ac1wye at gmail.com>
Sent: Thursday, September 05, 2013 9:08 PM
To: <heath at puck.nether.net>; <heathkit at mailman.qth.net>
Subject: [Heathkit] SB-614 wierd traces - HELP!

> Greetings, Pals!
>
> Well, I finally got my SB-614 going again after replacing a bad Horizontal
> Gain pot.
>
> So, I decided to do the whole setup procedure as per the Manual, just to
> get back to Square 1.
>
> Well, this has been a surprise. After adding the EE-BB jumper and turning
> it on, I started to reset the Astig ans the Focus. Got a tiny spot, moves
> right and left up and down. Used the Balance pots to even out the Hor and
> Vert rates  of increase. But one odd thing I noticed: with no H gain, the
> Vertical line has some sort of odd distortion, like an extra little
> squiggly Vert line against the main line. With no V, the Horizontal gain
> line doesn't seem to show any extra "line".
>
> The I did the No H/Max V line and added in H to get the 45-degree line
> which may need to be adjusted with the Balance pots. EGADS! it tries to
> make like an oval! Got to be that wierd little vertical line messing
> something up.
>
> Now, as you can imagine, The ICOD Section of the Manual makes no mention 
> of
> such a condition. So, Now I don't know what to expect. I guess I'll put it
> inline with my SB-104A tomorrow and see what kind of SSB waveform I get.
> Should be interesting.
>
> Anyone on the Reflector have an idea what might be wrong? The only changes
> I've made to the Main Circuit Board have been two new 100uF/450V electros
> to replace the 70uF/350V, and three new .15uF/3kV Mylar caps to replace 
> the
> old ones. That's in the PS section and can't imagine causing a problem 
> like
> this.
>
> 73,
>
>
> Sandy AC1Y
>
>
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
>
> Scotsmen walk about 900 miles each year.
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