Stern - Cosmic Princess

[ralph67]

Thanks - starting to make sense now. I have got a voltmeter - is there a test procedure?

Set meter to ohms or if it has a buzzer use that , carefully remove at least one end of the fuse from the fuse holder, but really take each one at a time and check is the best way , then put leads on the ends of the fuse, it should buzz or at least change resistance if you set the on Ohms  got it??

[Rossco]

Yip - will do...

[Rossco]

No displays? check fuse inside head box , Carefull high voltage here!!, Unplug from wall before removing and checking . at least turn game off under cabinet!

Thanks Ralph - will check it out quickly (will remove power until things are sorted)...

[Rossco]

Hang on i just noticed the large white Resistor on the rectifier board is f**ked by the looks of it and need replacing before you go any further!!

Is that replaceable?

There seems to be something snapped off at VR-1 .. is that important?

[Sinbad79]

Hang on i just noticed the large white Resistor on the rectifier board is f**ked by the looks of it and need replacing before you go any further!!

Is that replaceable?

There seems to be something snapped off at VR-1 .. is that important?

 

Do yourself a favour and read this a few times

http://techniek.flipperwinkel.nl/ballyss/rep/index1.htm

Rectifier Board Fuses.
 Here is a list of the rectifier board fuses. This applies to all generations of Bally power supplies from 1977 to 1985.
◾F1 = 10 amp fast-blo (CPU controlled feature lamps)
◾F2 = 3/4 amp slo-blo (score display high voltage)
◾F3 = 4 amp fast-blo (unregulated +5 volts)
◾F4 = 5 amp fast-blo (solenoids, if game has 2 flippers)
◾F4 = 6 amp fast-blo (solenoids, if game has 3 flippers)
◾F4 = 7 amp fast-blo (solenoids, if game has 4 flippers)
◾F5 = 20 amp fast-blo (general illumination lights)
◾F6 = 3 amp slo-blo (incoming 120 volts AC line power)

[ralph67]

Hang on i just noticed the large white Resistor on the rectifier board is f**ked by the looks of it and need replacing before you go any further!!

Is that replaceable?

There seems to be something snapped off at VR-1 .. is that important?

 

Yes , i didn't see that one. I would get help with it, i will send you a pm

[Strangeways]

VR-1 is the varistor and that will have mains voltage on one of those broken legs. The large resistor is a 600-620 ohm 10 Watt resistor.

Was the varistor on the board before you started troubleshooting ?

As Ralph suggests, there could be a serious underlying issue that needs to be resolved before moving on.

[Rossco]

No displays? check fuse inside head box , Carefull high voltage here!!, Unplug from wall before removing and checking . at least turn game off under cabinet!

Thanks Ralph - will check it out quickly (will remove power until things are sorted)...

Couldn't see any fuses in the header. Took these pics of the boards I found:

[Rossco]

Hang on i just noticed the large white Resistor on the rectifier board is f**ked by the looks of it and need replacing before you go any further!!

Is that replaceable?

There seems to be something snapped off at VR-1 .. is that important?

 

Do yourself a favour and read this a few times

http://techniek.flipperwinkel.nl/ballyss/rep/index1.htm

Rectifier Board Fuses.
 Here is a list of the rectifier board fuses. This applies to all generations of Bally power supplies from 1977 to 1985.
◾F1 = 10 amp fast-blo (CPU controlled feature lamps)
◾F2 = 3/4 amp slo-blo (score display high voltage)
◾F3 = 4 amp fast-blo (unregulated +5 volts)
◾F4 = 5 amp fast-blo (solenoids, if game has 2 flippers)
◾F4 = 6 amp fast-blo (solenoids, if game has 3 flippers)
◾F4 = 7 amp fast-blo (solenoids, if game has 4 flippers)
◾F5 = 20 amp fast-blo (general illumination lights)
◾F6 = 3 amp slo-blo (incoming 120 volts AC line power)

Helpful thanks...

These guys seem to have at least some slow blows. Are they the same type?
http://www.altronics.com.au/hardware/fuses/?type_1=3ag-slow-blow-fuses

[Sinbad79]

Yes, Those fuses will do.

I get the feeling you are in way over your head. I wouldn't be surprised if you've butchered the repinning either. You should probably get someone out to help you through it.

I had similar symptoms on a friends cosmic princess, most if not all of the issues resolved once i rebuilt the rectifier board, and given you have a rottendog solenoid board, then i'd start here, at the rectifier board and back.

[Rossco]

VR-1 is the varistor and that will have mains voltage on one of those broken legs. The large resistor is a 600-620 ohm 10 Watt resistor.

Was the varistor on the board before you started troubleshooting ?

As Ralph suggests, there could be a serious underlying issue that needs to be resolved before moving on.

I haven't done anything to that area and I got it like that. It has never really worked properly from the outset so it looks like I will to get a new rectifier?
Doesn't look that complicated - unlike the solenoid board that I resoldered the pins on. Maybe I can just get parts??

[Rossco]

Yes, Those fuses will do.

I get the feeling you are in way over your head. I wouldn't be surprised if you've butchered the repinning either. You should probably get someone out to help you through it.

I had similar symptoms on a friends cosmic princess, most if not all of the issues resolved once i rebuilt the rectifier board, and given you have a rottendog solenoid board, then i'd start here, at the rectifier board and back.

I am not skilled in pinball repairs but am eager to learn the necessary processes. I have been reluctant to get a repair person in as they charge $160 before doing any work and that will soon exceed the value of the machine. The charge is probably warranted, but the economics and my interest (fuelled by the generous help from specialists here), keeps me going.

I am confident that I did they pinning correctly - took lots of time and carefully did each one, and checked them afterwards.

Can one buy reasonably priced rectifier boards anywhere?

[Retropin]

Yes, Those fuses will do.

I get the feeling you are in way over your head. I wouldn't be surprised if you've butchered the repinning either. You should probably get someone out to help you through it.

I had similar symptoms on a friends cosmic princess, most if not all of the issues resolved once i rebuilt the rectifier board, and given you have a rottendog solenoid board, then i'd start here, at the rectifier board and back.

I am not skilled in pinball repairs but am eager to learn the necessary processes. I have been reluctant to get a repair person in as they charge $160 before doing any work and that will soon exceed the value of the machine. The charge is probably warranted, but the economics and my interest (fuelled by the generous help from specialists here), keeps me going.

I am confident that I did they pinning correctly - took lots of time and carefully did each one, and checked them afterwards.

Can one buy reasonably priced rectifier boards anywhere?

If you do get a tech in, make sure its not the same guy that services 5RPM motors....

[Rossco]

Yes, Those fuses will do.

I get the feeling you are in way over your head. I wouldn't be surprised if you've butchered the repinning either. You should probably get someone out to help you through it.

I had similar symptoms on a friends cosmic princess, most if not all of the issues resolved once i rebuilt the rectifier board, and given you have a rottendog solenoid board, then i'd start here, at the rectifier board and back.

I am not skilled in pinball repairs but am eager to learn the necessary processes. I have been reluctant to get a repair person in as they charge $160 before doing any work and that will soon exceed the value of the machine. The charge is probably warranted, but the economics and my interest (fuelled by the generous help from specialists here), keeps me going.

I am confident that I did they pinning correctly - took lots of time and carefully did each one, and checked them afterwards.

Can one buy reasonably priced rectifier boards anywhere?

If you do get a tech in, make sure its not the same guy that services 5RPM motors....

Ha - won't be any time soon !!

[Rossco]

Looks like a good product... but it comes with a warning:

http://www.rottendog.us/bps018.html