lördag 22 april 2017

Dolly Parton


It’s quite some time since I wrote something at the blog. It doesn’t mean that I haven’t done anything, just that haven’t had enough time for everything I want to do. Beside repairing and restoring pinballs I have also started horse riding and spend quite some time in the stables during the weeks. Yes stables, I ended up joining two riding schools and a private stable with Icelandic horses and I really enjoy the riding and the time spent with the horses.

I have made quite a lot of onsite repairs during the autumn and winter, about 15 pinballs and a few juke boxes and one of the last repair done in the workshop was a Bally Dolly Parton. This machine was more or less already restored. The playfield was cleaned and new rubbers mounted. It also had a new CPU board mounted but the previous repairer didn’t get the machine to run with the new CPU. When powering up the machine it displayed numbers at the player displays and a bright 0 at the credit display but nothing else happened. The cause of the problem was the cabinet switch matrix connector, J3. The CPU did actually boot properly but it wasn’t possible to add credits trough the coin switches and the start and service switch didn’t work. Repining the connector solved the problem and it was then possible to start a game.

 
The bright 0 at the credit display was due to a faulty resistor at the displays PCB, there are six 100K resistors at the display board and all six of them should be replaced with ½ w resistors, with a bit of distance from the board.
 

While working with the cabinet switch matrix I noticed that someone had disconnected the tilt pendulum and roll cage tilt, also the slam tilt switch at the playfield and coin door was disconnected, these was reconnected again.

I was asked to replace the three German coin mechs with a Swedish one while having the game at the workshop. The coin door also needed a bit of restauration so I took it out and disassembled it for cleaning and polish the bits and pieces.  
 
 





 And then after some minor wood work and just a little cleaning some playfield parts the game was ready to be picked up.
 

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