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.
