The power driver board test point for the 50 volts test results is 75 volts. I assume there is something wrong but i have no idea on where to look.
Thanks
The power driver board test point for the 50 volts test results is 75 volts. I assume there is something wrong but i have no idea on where to look.
Thanks
Quoted from terryb:That's normal.
As terryb said, it is normal. It's not under load when you test it.
LTG : )
Quoted from busa32927:just trying to trace down probable causes for some switch issues.
Describe the switch issues you are having.
at first it was a weird row 1 and row 2 error. I tested the main board and everything was good there. I narrowed it down to the 10 switch opto board. i pulled the cap and saw that it was leaking. Cap juice was also under the lm339. replaced both of those. row switch issues are gone. now i have 2 switch errors. Switch 51 and 71. I replaced the optos because i had them on hand. checked the voltages on the optos and they are correct and respond when an object is in its path. so i have no clue as to why the game isnt seeing those 2 switches as being closed. i am taking the 10 switch opto board to test on a friends dracula to see if its the board or if its something else in the game.
i already looked over the board for cold solder joints on header pins and other places.
switch 51 amd 71. i tried the 10 switch opto board in another dracula and it works perfectly. i have tested the cpu board with the row and column touching with the lead. all rows and columns light up as i touch them. i am at a total loss now.
Does your BSD have a -1 Power/Driver Board with the flipper power relay?
—
Chris Hibler - CARGPB #31
http://ChrisHiblerPinball.com/contact/
http://www.PinWiki.com - The new place for pinball repair info
Quoted from busa32927:now i have 2 switch errors. Switch 51 and 71.
Are you getting error messages or they just don't work?
If you're getting an error message then do a factory reset. If they just don't work you've got a break in the row 1 chain. Check continuity from another switch on row 1 to the opto board.
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