(Topic ID: 240359)

Gottlieb Target alpha 3ball issue


By Andreas

3 months ago



Topic Stats

  • 16 posts
  • 4 Pinsiders participating
  • Latest reply 78 days ago by Andreas
  • Topic is favorited by 1 Pinsider

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Pinball (resized).png
Capture (resized).PNG
Capture1 (resized).PNG
Target Alpha Last Ball Relay (resized).jpg

#1 3 months ago

3-5 ball problem on Target Alpha.

Every things works fine on 5 balls. When on 3 balls after the 3e ball on a 1 player game it goes to player 4 for one ball and then game over..when going to player 4 matchfeature lamp lights up an player 1 and 4 lamp lights are both light up....HOWEVER when having the playfield up and having my finger as a ball it goes to game over after 3 balls..Jonesplug for 3 to 5 ball?
But strange it works every time I have playfield up.

#2 3 months ago
Quoted from Andreas:

3-5 ball problem on Target Alpha.

Seems to point to a loose connection if it works with PF up.

#3 3 months ago
Quoted from currieddog:

Seems to point to a loose connection if it works with PF up.

On the jones plug?

#4 3 months ago

My bad..It does not work with playfield up and ball there..just with my fingers but with my fingers faking a ball it goeas as I said above..plus kicking the ball out in the lane when game over

#5 3 months ago

5 balls does the same now...could this has to do with the bx relay?

#6 3 months ago

Could be the BX, so check here:

Capture1 (resized).PNG
#7 3 months ago

Does the Last Ball Relay fire during the last ball?
Target Alpha Last Ball Relay (resized).jpg
If it fires correctly on a 5 ball game but not on a 3 ball game it could be an issue with the wipers, contacts or wiring on the Player unit in the red box.

What does it do on a multiple player 3 ball game?

/Mark

#8 3 months ago

Also could be this, esp. the AX. The top line (at 0 of coin unit) leads into Game Over:

Capture (resized).PNG
#9 3 months ago
Quoted from MarkG:

Does the Last Ball Relay fire during the last ball?
[quoted image]
If it fires correctly on a 5 ball game but not on a 3 ball game it could be an issue with the wipers, contacts or wiring on the Player unit in the red box.
What does it do on a multiple player 3 ball game?
/Mark

Just tried a 2 player game..its the same

2 weeks later
#10 87 days ago
Quoted from MarkG:

Does the Last Ball Relay fire during the last ball?
[quoted image]
If it fires correctly on a 5 ball game but not on a 3 ball game it could be an issue with the wipers, contacts or wiring on the Player unit in the red box.
What does it do on a multiple player 3 ball game?
/Mark

Its the same, I played 2 player yesterday and it jumps to player four after the last ball and then plays one ball even thought the matchfeaturelamp is lit. It works ok on a 1 player only game and onbly seams to mess up there after the 2playergame has done its bad things. If it does somthing on a 1 player game its not ending the ball 3 and often then it wont start the bonus unit but this is like 1 game out of 20. Im curios why it jumps to player 4 and not player 3 after the last ball. Im going to take a look at the BX again even though I have done it 12 times now

#11 87 days ago

I just had a problem on my TA of it not ending after games (5 ball). I usually do 4 player and after draining P4 B5 it was going back to P1 and staying there. It was cleaning the O relay in the end that fixed it.

#12 86 days ago

Ok for the first time its gone. This is how I did it. Gone through everything in the last ball circut..it didnt help..gone thrue every jonesplug again and it did not help...last thing was to clean the the small jonesplug by the fuses comong from the door AND removed the disc on the coinunit and fiberglassed everything again and wiped it off. The last 2 things seems to done it. Only played 4 games but works for the first time ever on 2 player game...lets hope it stays this way.

#13 86 days ago

That was short..now its worst..first ball relay does not release..if I manually release it it will now play all 3 balls and keep throwing out balls after last ball (ball 3). It keeps advancing to ball 4 and so on even though it is a 3ball game

#14 86 days ago

Try cleaning the O and Game Over relays. And change to 5 ball for a bit.

#15 86 days ago
Quoted from Andreas:

That was short..now its worst..first ball relay does not release..if I manually release it it will now play all 3 balls and keep throwing out balls after last ball (ball 3). It keeps advancing to ball 4 and so on even though it is a 3ball game

If the 1st Ball relay (DX) doesn't trip when you get 10 or 100 points, Inspect and diagnose this circuit with Alligator clip jumper wires
starting with this switch on the DX relay itself.
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features

Pinball (resized).png
1 week later
#16 78 days ago
Quoted from HowardR:

If the 1st Ball relay (DX) doesn't trip when you get 10 or 100 points, Inspect and diagnose this circuit with Alligator clip jumper wires
starting with this switch on the DX relay itself.
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features
[quoted image]

Ok I have gotten the game to work pritty good by adjusting the bx, dx with the screws on the other coil in them. However every 20 games or so the ball continue after it drains on the same ballnumber but it does every reset except the going through players light. It also some times (almost everytime after the thing I just wrote) during play gives an extraball (same player shoot again gets on) I do think thst it is a certain droptarget that activates this 90% of the time.
I have adjusted and cleaned the Extra ball relay, the 5pos switch, 10 pos switch, the P relay, Motor 4b motor 1c. The roloverswitches are ok adjusted and cleaned. I know that its probebly lying somewhere in that circut. What could trigger the extraball to get on under a play when not hitting the rolovers. The game can then after drain work perfect for 20 games or so.

On the pic you show you show the 1 ball relay...should I not look at the 1 ball relay release in the schematic?

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