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Wurlitzer 1080/1015 Selection Problems-Help
Hello,
I have a Wurlitzer 1080 that would not select. I installed a free play plug to try to overide the problem I figured I must of had with the grinder. It still does not work. Is there a place I should focus or test to try to figure out the problem? Thanks for any suggestions- Chris |
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#2
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Wurlitzer 1080/1015 Selection Problems-Help
chris wrote:
Hello, I have a Wurlitzer 1080 that would not select. I installed a free play plug to try to overide the problem I figured I must of had with the grinder. It still does not work. Is there a place I should focus or test to try to figure out the problem? Thanks for any suggestions- Chris Does the selection process push a pin out and/or start the mechanism searching? If nothing happens then you can have a break in the keyboard wiring. The keyboard switches have to make a continuous connection to enable the selection (As I recall) - I have jumpered past bad key switches in the past to allow the selection process. The problem with doing this is you can make two selections at the same time if you press the key that has been jumpered and any other key. No a problem in home situations, but could not be permitted for commercial use. The schematics would help you find this path...I think you can download them (poor quality) from Arcadeboneyard or buy a nice professional copy from Victory Glass (extra info, nice clear prints). John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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Wurlitzer 1080/1015 Selection Problems-Help
Thank you for the response. When I press a selection key I get a buzz
from the junction box as the play counter is activated. That is all I get, no magnet coils are activated on the selector wheel. Not all the selections will activate the play counter so I assume I do have some breaks in the wiring harness. So you think that the breaks in the wire in the selection wiring harness will cause none of the selections to cycle the mech? Thanks Again!-Chris |
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Wurlitzer 1080/1015 Selection Problems-Help
chris wrote:
Thank you for the response. When I press a selection key I get a buzz from the junction box as the play counter is activated. That is all I get, no magnet coils are activated on the selector wheel. Not all the selections will activate the play counter so I assume I do have some breaks in the wiring harness. So you think that the breaks in the wire in the selection wiring harness will cause none of the selections to cycle the mech? Thanks Again!-Chris Hi Chris, Sorry, I dont' have the time to teach you how to read a schematic - but it does indeed sound like some problems that may (or may not) be in the keyboard switches. If you watch the keyboard switch action you will see some sliding blades that make/break contact with spring metal clips to complete or separate electrical connections. These spring clips or sliding blades bend/distor/shift enough to not make a connection leading to problems with selections. Study the operation of these key switches. The majority will be correct with one or more being different in behaviour - these are the ones to try and fix or possibly bypass. Do be careful when attempting to bypass as you can always make thing MUCH worse if you don't understand what you are trying to accomplish! John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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Wurlitzer 1080/1015 Selection Problems-Help
Thanks John-I will start trouble shooting there, I do have a set of
schematics. Thanks Again for your input!-Chris |
#6
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Wurlitzer 1080/1015 Selection Problems-Help
Selection number 1 will enegerize the magnet and start the mech and
complete the cycle. The remaining buttons will not energize the magnets. I can not find any breaks in the daisy chain wiring any other ideas. I appreciate any advice! |
#7
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Wurlitzer 1080/1015 Selection Problems-Help
chris wrote:
Selection number 1 will enegerize the magnet and start the mech and complete the cycle. The remaining buttons will not energize the magnets. I can not find any breaks in the daisy chain wiring any other ideas. I appreciate any advice! Hi Chris, Always best to quote the complete message - from the beginning, rather than starting without any history. So, the situation so far: (note how it makes sense to a newcomer as it reads like a story...) chris wrote: Hello, I have a Wurlitzer 1080 that would not select. I installed a free play plug to try to overide the problem I figured I must of had with the grinder. It still does not work. Is there a place I should focus or test to try to figure out the problem? Thanks for any suggestions- Chris Does the selection process push a pin out and/or start the mechanism searching? If nothing happens then you can have a break in the keyboard wiring. The keyboard switches have to make a continuous connection to enable the selection (As I recall) - I have jumpered past bad key switches in the past to allow the selection process. The problem with doing this is you can make two selections at the same time if you press the key that has been jumpered and any other key. No a problem in home situations, but could not be permitted for commercial use. The schematics would help you find this path...I think you can download them (poor quality) from Arcadeboneyard or buy a nice professional copy from Victory Glass (extra info, nice clear prints). John :-#)# chris wrote: Thank you for the response. When I press a selection key I get a buzz from the junction box as the play counter is activated. That is all I get, no magnet coils are activated on the selector wheel. Not all the selections will activate the play counter so I assume I do have some breaks in the wiring harness. So you think that the breaks in the wire in the selection wiring harness will cause none of the selections to cycle the mech? Thanks Again!-Chris Hi Chris, Sorry, I dont' have the time to teach you how to read a schematic - but it does indeed sound like some problems that may (or may not) be in the keyboard switches. If you watch the keyboard switch action you will see some sliding blades that make/break contact with spring metal clips to complete or separate electrical connections. These spring clips or sliding blades bend/distor/shift enough to not make a connection leading to problems with selections. Study the operation of these key switches. The majority will be correct with one or more being different in behaviour - these are the ones to try and fix or possibly bypass. Do be careful when attempting to bypass as you can always make thing MUCH worse if you don't understand what you are trying to accomplish! John :-#)# chris wrote: Selection number 1 will enegerize the magnet and start the mech and complete the cycle. The remaining buttons will not energize the magnets. I can not find any breaks in the daisy chain wiring any other ideas. I appreciate any advice! So, now you check the switch banks for continuity between each number. You will see that the blade switches and sliders create different connections. Some are connected until the button is pressed, others open up when the button is pressed. So the suspect here is on the 1st or 2nd switch, the section that is closed until the button is pressed is not working correctly and won't show continuity at some point in the series switches. I hope this makes enough sense to you so you can check it out better. The problem is most likely in the 1st or 2nd selection switch. Watch how those work, and check the next bank over to see how the blades and connections work on the next group. I think you will eventually figure it out! John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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