It could also be the goofy way that the focus pin is built into the tube
socket. If I remember correctly the actual socket for the focus pin
mates with a contact in the plastic socket that connects to the focus
wire. I had a 6100 that I had to hard wire that connection to get
it to work. See if you can disassemble the connector and make sure
the contacts are clean.
> Joey Oravec wrote:
>> Did you replace the HV pot, and if so did you use a high voltage
probe
>> to readjust the high voltage to 19kV? This is the most common
screwup
>> since that pot, if replaced, must be adjusted to generate proper
high
>> voltage.
>>
>> If not, I'd suggest finding another collector locally with a
CRT
>> tester who would be willing to run the tests and make sure that
the
>> tube tests good.
>>
>> -joey
>>
>> On Fri, Jul 6, 2012 at 10:17 AM, Chuck
<chuck@localsurfer.com
>> <mailto:chuck@localsurfer.com>> wrote:
>>
>> Anyone? Still lost on this one.
>>
>> Chuck
>>
>>
>> On Jul 4, 2012, at 10:48 PM, Chuck wrote:
>>
>> > Hey all,
>> > I have a K6100 from my Tempest that I did a full rebuild
>> on with all the bells and whistles from Bob Roberts. All seems
to
>> have went well except that it now will not stay in focus. I
tried
>> swapping out the flyback with another one and the problem is
still
>> there. I have looked at the pins and socket on the neck and
neck
>> board and they all seem to fine, no signs of corrosion. The
>> connector that goes from the high voltage cage to the neck
board
>> is not at issue as far as I can tell, there isn't any
changes when
>> I wiggle it around. The weird part is that when I turn the game
on
>> it is perfect for a couple of minutes and then drifts out of
focus
>> to about the same point all the time. I thought it might be a
heat
>> problem, but if I turn the game off for just a few seconds
and
>> right back on, it is in good focus again for a couple of
minutes.
>> No time for it to cool off. I miss playing my Tempest.
>> >
>> > Thanks,
>> > Chuck-
>>
>
>
> If you adjust the focus after it has warmed up does it still
drift?
>
> You can check the lower output voltages from the HV unit to see if
they
> are stable as well (start with measuring them when first turned on,
then
> check 15 minutes later) - there may be a problem with the voltage
> regulator as a result of your rebuild, or just random failure
occurring
> at the same time.
>
> John :-#)#
>
> --
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T
3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
> www.flippers.com
> "Old pinballers never die, they just flip out"
>
>
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Received on Fri Jul 6 11:05:41 2012
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