elektra issues

[vanhos]

I will have another look at au driver. The machine did glow tilt the other day after i gave it a shove with stuck ball. So the aux driver does work. Just seems wierd that its just the four cloud light circuits dont work. If checked to see if there is something in common that might cause a isdue with these four circuits.

[vanhos]

Has any body have two of these posts laying around or does anyone no were to buy them from. Missing a plastic and these posts ball gets stuck all the time starting to annoy me.. Just the posts i have chrome caps not white ones.

[vanhos]

Time to get serious....

This lower playfield not working has to get fixed. I have checked the globe wich is fine and has been replaced.im going to refolw the expander board in next few days... Is there any other ideas i can look at.

[Strangeways]

Time to get serious....

This lower playfield not working has to get fixed. I have checked the globe wich is fine and has been replaced.im going to refolw the expander board in next few days... Is there any other ideas i can look at.

Have you checked the globe holder ? Are these #555 or #44 / #47 globes ?

[ralph67]

While im posting any idea what these numbers were for enraved into the machine.

The first E stands for Electronic EL stands for Electra The E part came from when they changed from electromechanical to electronics

[vanhos]

555...  Ill give the lamp holder a once over but pretty sure its fine.

[Strangeways]

555...  Ill give the lamp holder a once over but pretty sure its fine.

How did the reflow of the Aux Lamp driver go ?

[vanhos]

Checked out the two small aux driver boards. Found one cracked solder joint on a pin. Then found this small link between two pins on the other board i removed the link. Turned it back on then the middle playfield gi didnt work so put it back in.

Looking at the wiring diagram im pretty sure its not sposed to be there.

Also i checked out that 555 globe hidden next to the solinoide board. I noticed some wiring had been changed. So im a bit confused on it all looks like i have a bit of wiring to follow and some more looking at the drawings.

[vanhos]

Any body no were i can get bally springs for the elektra pinball machine noticed they were all shot.

[Strangeways]

The small board is the "AUX Driver G.I. Flasher" board - AS-2518-68
Solenoid Expander is the board with the relay and #44 globe - AS-2518-66

The Aux Lamp Driver board is in the head - AS-2518-52. It is a rectangular shape.

Springs have different part numbers for different assemblies. I can look them up for you if you tell me which assemblies ?

[vanhos]

The solonoid board has the 555 globe next to it. Not 44 should it be a 44.  Also should the globe be on all the time. At them moment it doesnt work at all. I remove the globe and test between globe holder and its a dead short.

[vanhos]

Hey hi been a bit busy but back on the elektra lower playfeild issue.

I have been told there could be a triac on the power supply board wich could be causing the issue. (No idea were they are what they do or we're they are on the drawings).

I decided to pullout the board and have a look. I noticed some dodgy solder joints on the board Reflowed som joins and I put it back together. Now the flippers don't work.

In saying that in the last few months when powering up the machine it takes at least 20 sec longer to fire up. Then when I played it some times it goes blank then starts up again, or the flippers didn't work for a sec or too.

See pics of board.

So few issues now not just the cloud lights and the lower playfeild. Fun fun fun.

Any ideas out there.

[wiredoug]

so essentially you messed with it and now it doesnt work ? ;-)

remember the heatsink compound when you put the board back in.
http://www.pinwiki.com/wiki/index.php?title=Bally/Stern#How_To_Properly_Mount_a_Bally_AS-2518-54_Rectifier_Board

now first what are the test point voltages ( d/c the outputs).
here you go .. read the guide and follow the bouncing ball
http://callkck.com/pin/BS7785.zip
then unarchive it and BS7785-1/index1.htm#ps

pretty sure you will know how to test a Bridge rectifier with a meter .. if not youtube has videos  ( remember its 4 diodes in a box) - Start there and go through the machine step by step

[beaky]

if all of your test point voltages test fine i would suspect the pin headers on the driver board and / or the cpu for the flippers not working.
also the pins in the housings that are on the wiring loom that connect the wires to these pins may need replacing.
when you press the start button can you here the flipper relay on the driver board (the board to the top right of the back box, the one with the big black heat sink on it)

[wiredoug]

listen to beaky not me - hes forgotten more than i'll ever know.