Re: 6100 Deflection problem

Since your problem in on both axises (axi?), it sounds like there is a
problem on your (-)negative voltage side. Check your (-) voltage all the way
to the deflection transistors. I'll bet there is a problem somewhere along
the way that's common to both sides.

Jeff

On Feb 2, 2008 2:46 PM, John Robertson <pinball@telus.net> wrote:

> Hi Ron,
>
> Sorry, I'm sick at home with no schematics to guide me...
>
> I thought there were two fuses on the monitor mother board that are close
> to the socket for the yoke (that's the wire/metal thing hanging on the
> middle of the picture tube with four wires going to a plug on the monitor
> motherboard.
>
> I do not remember the plug # for the yoke, however the yoke only has a
> single four wire plug on it to the monitor motherboard - that you can
> unplug. DO NOT UNPLUG ANYTHING ELSE!!!
>
> If you are not *certain* what a 'yoke' is then don't unplug anything...
>
> If you are new to using 'scopes, then just be sure to not put too high a
> signal on the inputs - be sure to use the 10X setting on your probe (helps
> protect things in your case - that's enough about that for now) - and use
> the corresponding appropriate vertical setting.
>
> If you have the schematic and you have set the game board in "Self-Test"
> then you will be getting a pretty simple signal out to your monitor and you
> can compare the signal of identical parts from one side to the other of the
> 'stereo' XY amplifier. You see the signal on both sides/channels should be
> pretty similar other than amplitude and some signal differences (while in
> Self-Test only!). This is where a Dual-Trace 'scope is handy.
>
> As you are new to using a scope I would recommend that you turn the game
> OFF before moving the probes to a new location, only turning the game power
> on when you are sure that you have not shorted the porbe across two legs of
> a transistor for example. By leaving the game in Self-Test, then each time
> you turn it on it will return to the same screen.
>
>
> Ron Matuszak wrote:
>
> Ok, bear with me I just got my scope last week. Its a Tek 465. I bought
> it to help me fix this game.
>
> Where do I hook my scope to on the deflection board ? The deflection board
> I have is P339. Where are the yoke protection fuses ? The other board
> numbers are HV P329, Neck P315. I forgot to add I have the LV2000 installed
> also. When you say to unplug the yoke. Do you mean unplug P500 and J501 from
> the neck board ? Sorry if these are stupid questions. This is my first Color
> Vector and I don't want to screw it up. The G05's are alot easier.
>
> -Ron
>
>
>
> ----- Original Message -----
>
> *From:* John Robertson <pinball@telus.net>
> *To:* vectorlist@vectorlist.org
> *Sent:* Saturday, February 02, 2008 2:43 PM
> *Subject:* Re: VECTOR: 6100 Deflection problem
>
> Ron Matuszak wrote:
>
> I have a 6100 that was dead when I bought it. It's in a Gravitar. My
> problem is, I only have delfection in the upper right of the monitor (X+ and
> Y+). I have swapped the transistors to both sides. No change. The spot
> killer isn't lit. It's not blowing fuses. I did the following on it.
>
> Full cap kit
> Reflowed the wires for the transistors
> Checked for cold solder joints
> Reflowed all the conector pins on the deflection board
> Tried to adjust the monitor using the pots on the board
> Double/triple checked all of the chassis transistors (they're good)
>
> I checked the X and Y out on the Gravitar board using my scope and game
> looks good. It has full deflection. I was able to finally play a game that
> way. I'm thinking it has to be the monitor. Any ideas on what I'm missing ?
>
>
> -Ron
>
>
> Did you check the yoke protection fuses for continuity/bad grip? Also, you
> can use you scope on the deflection board to see if the signal is getting
> through.
>
> Remember that XY monitors are virtually identical to audio amplifiers -
> roughly the same drive and frequency response is just a bit higher...
>
> You can run the monitor with the yoke unplugged for example (no load
> condition), just be sure to have the driver transistors plugged in.
>
> 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"
>
>
>
>
> --
> 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 Wed Feb 13 16:54:28 2008