Re: Tempest twisting images...

Yes, I tried tightening the pins on the sockets. Now that I think of
it the plug feels a little un-tight. I'll check stock to see if I
have a plug assembly with better bite. I did do the exchange power
transistor plug with the X transistors - the Y group won't reach - to
make sure the problem wasn't on those two. Forgot to fully test the Y
plug!

Will come back with part two tomorrow when I get back to the shop -
currently I'm in the warehouse digging around:
http://flippers.com/TimeTravelWarehouse.htm

There are a number of vector games there folks, good time to get good
deals...bulk buys encouraged!

John :-#)#

At 9:58 PM +0100 6/12/06, simon wrote:
>John
>I had some strange image problems with bad Deflection transistor
>sockets, check they are good.
>Cheers
>Simon
>
>----- Original Message -----
>From: <mailto:pinball@telus.net>John Robertson
>To: <mailto:vectorlist@vectorlist.org>vectorlist@vectorlist.org
>Sent: Monday, June 12, 2006 8:39 PM
>Subject: VECTOR: Tempest twisting images...
>
>Ok, I'm lazy enough, but has anyone seen a situation with a Tempest
>monitor where the picture twists (+ Y axis) upon the display of the
>TEMPEST name for a second? Rather interesting distortion, I
>originally thought it was Q606 (2N3716) that was having life issues,
>but no, replacing it didn't change this distortion, then I tried the
>driver - MPUSU57 - again not the problem.
>
>Understand that I've re-capped the HV (stable voltages) and
>installed the LV2000 kit - stable +/- B voltages. Grounds are
>excellent, tried jumper wires to double check. Game seems happy
>otherwise, no smoke...connectors all inspected and solder built up
>on the monitor driver board pins as usual.
>
>There is also a twisting wave that appears in the picture on various
>levels - only during play, not in the attract mode - curiouser and
>curiouser.
>
>I thought it had to do with the speakers as it seemed to be most
>prominent when the sounds were very active (lots of shots,
>explosions), so I unplugged the speakers - no change.
>
>Yeah, pictures will be nice, but I'm off the warehouse right now to
>deal with other issues. Perhaps I can get them tomorrow and post
>them somewhere.
>
>Archives have nothing under twist or distortion that I can find
>relating to this...closest I found was "Tempest Boardset Barreling"
>by Dave Langley back a few years.
>
>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"
>
>
>No virus found in this incoming message.
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-- 
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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