RE: Tech Star Wars Help

Everyone,

  THANKS to all who replied. I tried the pots on the deflection board again
this afternoon. And the video is now solid. I just need to get the gear now
and I will set to go.

Frank

  _____

From: owner-vectorlist@vectorlist.org
[mailto:owner-vectorlist@vectorlist.org] On Behalf Of Andre Huijts
Sent: Saturday, September 19, 2009 1:36 AM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: Tech Star Wars Help

He said it goes left-right and up-down plus the whole picture seems to shake
so that doesn't sound like pots to me (or both have to be bad).

If so, I made a video about how that looks here:

http://www.youtube.com/watch?v=yF5hvj2_OBA

Op 19 sep 2009, om 02:28 heeft andre het volgende geschreven:

more than likely the jitter is a flaky pot for the x or y adjustment.

--- On Fri, 9/18/09, William Boucher <boucher@mnsi.net> wrote:

From: William Boucher <boucher@mnsi.net>

Subject: Re: VECTOR: Tech Star Wars Help

To: vectorlist@vectorlist.org

Received: Friday, September 18, 2009, 8:00 PM

I don't have a SW

schematic in front of me so I'm

not sure if this will apply, but on Space Duel and several

other Atari vector

games, the video section has two 3-pin regulators (probably

7815 and 7915

that can be replaced with 7812 and 7912).

When one or both of

these regulators fail, the unregulated DC supply going into

the DAC circuit

manifests itself as severe jitter in the

picture.

Also, is your monitor an

Amplifone or a

WG6100? If it is WG6100, dunno what version your

deflection board is,

but if it has the so-called "input protection

circuitry" (not to be confused

with a LV2000), then one of the clamping diodes is probably

pooched. Just

replace all of the 1N914 diodes and the two germanium

diodes (they look the same

as 1N914 except they also have a small yellow or red band

on them maybe) in the

protection circuit or just shotgun the entire board by

replacing them all

since they are so cheap. Replace 1N914 with 1N4148

generic parts.

I have a detailed parts

list with sources

here:

http://www.biltronix.com/arcade_electcomp_01.html#wg6100_rebuild_parts

William Boucher

 ----- Original Message

-----

 From:

 Frank Zapotoczny

 To: vectorlist@vectorlist.org

 Sent: Friday,

September 18, 2009 8:40

 AM

 Subject: RE: VECTOR:

Tech Star Wars

 Help

 Kind

of both

 directions up and down and left and right. I

recapped the boards a long

 time ago and I was going to try that to start along with

resoldering the

 connectors. I will try to get a video today. But it

did’t look like the

 vector lines were moving but that the whole picture was

 jumping.

 From: owner-vectorlist@vectorlist.org

 [mailto:owner-vectorlist@vectorlist.org] On

 Behalf Of Andre Huijts

Sent: Friday,

September 18, 2009 1:36

 AM

To:

 vectorlist@vectorlist.org

Subject: Re: VECTOR:

Tech Star Wars

 Help

 A video would sure help. Could you

describe how it

 jumps (left-right/up-down or other

way)?

 Op 18 sep 2009, om 03:50 heeft

Frank Zapotoczny het

 volgende geschreven:

 I have a Star

Wars upright with a

 Amplifone monitor. It has a wintron HV installed and had

worked great for many

 years. It has been sitting for a about a year without

being

 played.

  I turned

it on to play a few

 games and the picture came up and looked great but after

a few seconds the

 picture began jumping around and getting shaky. After

about 5-10 minutes it

 stopped moving around and looked great again. Then after

a few more minutes it

 started jumping around again.

  Can you

guys give me a

 suggestion on where to start

 looking.

 Thanks in

advance for any

 help/

 Frank

 André

 Huijts

 andre.huijts@upcmail.nl

  =

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André Huijts

andre.huijts@upcmail.nl

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Received on Sat Sep 19 13:17:37 2009