Hi pin friends.

Did a flipper rebuild and upgrade on a taxi.
Long and short of it is, I soldered the wires back on the new updated coils backwards.
Guess I blew the coils, as they did not work.

So I install the old coils again to make sure that the new ones were toast, and still not working.

So I check the fuses in the backbox, and find that f6 J12 fuse had blown.

IMG_3749.JPG

Put in the new fuse and almost, .....
Only the left flipper is working.

Re-solder the wires again on the right coil, just to make sure a good connection was made. Still not firing.
Triple check that the wires were back to the proper posts, and all is correct.
Same as the picture that I took before I started the job.

Is there another fuse for the right side?

Am I missing something here?

Getting tired so Im heading to bed now, and will hopefully have better luck with a fresh start tomorrow.

Still very new at this, so hoping for a bit of guidance please.

Thanks for the help.

Jeff

Thks

I'll check all those fuses out, with my meter.

Also noticed the diagnostics red light is flashing fast on the board in the back.

Report back shortly.

Thks for the help so far.

I read vids guide before undertaking, but still managed to make a mistake.

The original coils were flipped with the diodes against the coil stop.
I wanted to upgrade to the new parallel coils, so thats the reason for the change of coils.

When I installed new coils I now installed the correct way, diodes away from the coil stop, so now they were flipped, and thats where I messed up. Soldered on the wrong posts.

I have re read to guide and understand it all now. Wish I didn't rush it before.

I have removed every fuse in the backbox, checked continuity, and installed again. All good.

flipper fuses IMG_3752.JPG

Found this in the back box. F5 is the fuse for the right flipper. Checked and works.

Also checked continuity from the 50v power wire on the coil to the plug in the back box, and it checks good.

continuity IMG_3758.JPG

Here are pics of the right flipper coil that is not firing. This the original coil back installed. It was firing great before I installed the new updated coil.

Now it won't fire

right flipper Render-3.jpg

This is the left coil that fires great.

left flipperIMG_3754.JPG

Here is a video of the diagnostics flashing led light in the back box.

Thanks again for the help!

Jeff

Have done some more tests.
I have no power at the coil, as per the tests http://techniek.flipperwinkel.nl/wms11/index1.html#trans3

Have also grounded transistor Q8 as per instructions to activate relay, and it engages, but still no power to the coil.

The only way I get power to the coil, is a jumper from the left coil, and now the right works perfectly.

And I have continuity from the power wire under the play field all the way to the end at plug where it plugs into the backbox.

??

Also looked over the circuit board where the flipper fuses are,

IMG_3765.JPG

and where the power wire plugs into the circuit board from under the play field

IMG_3768.JPG

Closely looked over the front and back of the boards, all looks good.

Yes, I'm getting 82. Looks promising.

Yes, both sides of the the fuse, 81.

No power to pin 4.

sorry, yes power to pin 4.

Ok, so By disconnecting the plugs multiple times, the power kepy increasing marginally until now i have full power to the coil, 81 !!!!!

Awesome, thanks for helping me walk thru this kporter!
I have learned some much running thru these tests, and tracing the wires.

Have learned alot going thru the wiring diagrams as well. This is my first time really with electronics.

I pass by Edinburg every year on route to FLA, I owe you a few beers.

Cheers.
Thanks again for all the pointers.

Jeff

Ok, I'll put them in tonight, the proper way though.