Re: Tempest foldover on right side

One more interesting thing I just noticed. I increased the bounding box size
about 1/2 more both sides for a total of 1 inch extra width. The fold over
stays in the same place.

On Mon, Dec 21, 2009 at 2:41 PM, Kevin Moore <talon.k@gmail.com> wrote:

> Been busy, but I had a chance to make a quick video. I taped off the region
> around the bounding box, so I would know where it was. It seems the problem
> is about 1/2 inch outside that box on the right side.
>
> http://www.youtube.com/watch?v=2kMXHFCB5Zk
>
>
>
>
> On Wed, Dec 16, 2009 at 7:31 AM, Andrew Welburn <andy@andysarcade.net>wrote:
>
>> Don't always assume that a recently replaced part is 100% good, i would
>> still replace the transistor with another one as a way to eliminate that
>> possibility.. you just never know :-)
>>
>> Andrew Welburn
>> www.andys-arcade.com
>>
>> ----- Original Message -----
>> *From:* Kevin Moore <talon.k@gmail.com>
>> *To:* vectorlist@vectorlist.org
>> *Sent:* Wednesday, December 16, 2009 1:18 PM
>> *Subject:* Re: VECTOR: Tempest foldover on right side
>>
>> Well the rom set is V2, good point on the boundary limit. I don't recall
>> off hand, but when I get home tonight, I'll tape off the bounding box on the
>> screen, and see. Wouldn't think it would be the Deflection trans, as I
>> replaced all the Transistors with new when I re-capped, and did the LV
>> upgrades. Don't think I have any V3 roms handy, but I'll check and see if
>> that makes a difference.
>>
>> Thanks for the input, gives me a few things to check.
>>
>> Kevin
>>
>>
>>
>> On Wed, Dec 16, 2009 at 2:43 AM, Andrew Welburn <andy@andysarcade.net>wrote:
>>
>>> If its bothersome, you could try replacing the relevant chassis
>>> deflection transistor, i've seen that before. Tempest unfortunately will
>>> force the monitor to display vectors way, way outside the visibile screen
>>> area, later romsets IIRR have a fix for this. Even if your monitor can
>>> produce a full image, certain parts of the game will overdrive the
>>> deflection such that the transistors will partially break-down, causing
>>> other areas of the screen to show foldover like this.
>>>
>>> Its not clear if your boundary is inside or outside the real screen limit
>>> anyway without a photo. you should set the test mode pattern up to fill your
>>> screen then watch it in game, is the foldover inside this box?
>>>
>>> I'd replace the relevant chassis transistor first with a new one then
>>> observe... Changing the romset to a later revision might also help, but this
>>> is much more laborious, and is ignoring a weakness in your monitor anyway.
>>>
>>> Andrew Welburn
>>> www.andys-arcade.com
>>>
>>> ----- Original Message -----
>>> *From:* Kevin Moore <talon.k@gmail.com>
>>> *To:* vectorlist@vectorlist.org
>>> *Sent:* Tuesday, December 15, 2009 6:53 PM
>>> *Subject:* VECTOR: Tempest foldover on right side
>>>
>>> I've noticed that Tempest has a slight foldover when the player finishes
>>> a level, and the tube starts coming up. The left side the tube lines go
>>> infinity for lack of a better word, but the right side seems to fold over
>>> like hitting a wall, and it creates a straight line. Typically I just adjust
>>> the picture so that the monitor shroud covers this. Is this normal?
>>>
>>> Thanks,
>>>
>>> Kevin
>>>
>>>
>>
>

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Received on Mon Dec 21 15:53:17 2009