FW: K6100 spot killer voltages don't match manual

I didn't get a copy of this mail from last night? Did anyone? I am cutting
the embedded schematic image to see if that maybe was the problem. Though
the whole mail was only 144k.

One other thought on testing this section. I was thinking I could lift the
two deflection side resistor legs and using a 1.5v battery to drive the two
sides inputs to see if that turns off the spot killer. Would let me verify
that section was working ok (or see which side was acting up).

Thoughts on that?

David

From: David Shoemaker [mailto:davids@oz.net]
Sent: Saturday, February 02, 2013 12:06 AM
To: vectorlist@vectorlist.org
Subject: K6100 spot killer voltages don't match manual

Spot killer is on, turning up the brightness shows what appears to be a
normal screen.

At the junction of C802 &D801 it should be .3v and I am seeing -1.6.

At the junction of C803 & D802 it should be .3v and that is what I am
getting

I am seeing -3.6v at R806 and 1v at R807.

The schematic reference voltages for both are .7v

I am confused as to why I would be getting a sizable negative voltage in
from the Y side of the deflection board.

Would that then result in the spot killer thinking that the Y was dead? (I
am suspecting so).

The value at R610 is running from -1 to +.3.

Not sure just what the reference voltages are supposed to be from. I am
using a Major havoc in attract mode as my signal generator.

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Sat Feb 2 15:03:08 2013