(Topic ID: 257970)

POTC Not Saving Settings


By jdoz2

6 months ago



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  • 17 posts
  • 5 Pinsiders participating
  • Latest reply 5 months ago by PinballManiac40
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235C35B3-6915-4704-9F75-77EFD5E9D8DE (resized).jpeg

#1 6 months ago

I picked up a potc a few days ago and the settings keep reverting back to factory every time I power cycle the game. I’ve replaced the battery, and checked continuity from the holder to the solder side of the board for both the positive and negative side.

Anyone have any ideas?

#2 6 months ago

Did you check if power is getting onto the board ?

LTG : )

#3 6 months ago

A picture of the board would be nice.

#4 6 months ago
Quoted from LTG:

Did you check if power is getting onto the board ?
LTG : )

I get 3v into the board and I used the schematic to follow it along this path. I can trace just under 3v after 212 in green and again at U11 which is also green.

I can not read any voltage at u43. I do get continuity from r212 to u43 though.

Not sure if that makes any sense to get continuity but no reading, but hopefully you can point me in the right direction. Thanks for taking time to look at this.
235C35B3-6915-4704-9F75-77EFD5E9D8DE (resized).jpeg

#5 6 months ago
Quoted from jdoz2:

I can not read any voltage at u43.

I'd check with Stern's tech support.

LTG : )

#6 6 months ago
Quoted from jdoz2:

I get 3v into the board and I used the schematic to follow it along this path. I can trace just under 3v after 212 in green and again at U11 which is also green.
I can not read any voltage at u43. I do get continuity from r212 to u43 though.
Not sure if that makes any sense to get continuity but no reading, but hopefully you can point me in the right direction. Thanks for taking time to look at this.
[quoted image]

Any alkaline damage on the board from the batteries?

U43 is the clock chip and should not be causing your settings issue.

Remove U11 and inspect the socket for corrosion, look for bent pins

#7 6 months ago
Quoted from Schwaggs:

Any alkaline damage on the board from the batteries?
U43 is the clock chip and should not be causing your settings issue.
Remove U11 and inspect the socket for corrosion, look for bent pins

No corrosion and the u11 is a surface mounted chip with no socket. Kinda stumped how it can get power and not work.

I’m going to reload some code just for kicks but not sure what else to do other than contact tech support like Lloyd suggested

#8 6 months ago
Quoted from jdoz2:

No corrosion and the u11 is a surface mounted chip with no socket. Kinda stumped how it can get power and not work.
I’m going to reload some code just for kicks but not sure what else to do other than contact tech support like Lloyd suggested

Ah, right... this is a a SAM system - button cell battery and SMD chips.

Reflashing code can't hurt. Chips can go bad over time so it's not out of the question.

Was it working and all of a sudden stopped?

#9 6 months ago
Quoted from Schwaggs:

Ah, right... this is a a SAM system - button cell battery and SMD chips.
Reflashing code can't hurt. Chips can go bad over time so it's not out of the question.
Was it working and all of a sudden stopped?

I did a parking lot trade for this a few days ago and turns out this hundred percent working game isn’t so hundred percent working. This along with other issues of course.

It’s never worked since I’ve had it. I’ll try the update and report back.

#10 6 months ago
Quoted from jdoz2:

I did a parking lot trade for this a few days ago and turns out this hundred percent working game isn’t so hundred percent working. This along with other issues of course.
It’s never worked since I’ve had it. I’ll try the update and report back.

Ugg, that stinks.

#11 6 months ago

Well damn...

Called stern tech support and they think U11. Can anyone recommend someone to replace it? I gave rob Anthony a call but no idea if he works on them.

#12 6 months ago
Quoted from jdoz2:

Can anyone recommend someone to replace it?

Chrishibler right here on Pinside. Send him a PM.

LTG : )

1 week later
#13 6 months ago

Everyone I’ve checked with won’t work on the board, and the MPUs are on back order at Stern and they have no idea when they will get them in.

Anyone have any ideas on who could fix this or find a replacement? Checked with rob Anthony, Chris Hibler, and Clive at coin op cauldron.

#14 5 months ago
Quoted from jdoz2:

Everyone I’ve checked with won’t work on the board, and the MPUs are on back order at Stern and they have no idea when they will get them in.
Anyone have any ideas on who could fix this or find a replacement? Checked with rob Anthony, Chris Hibler, and Clive at coin op cauldron.

Hmmm. Never got a message about this. I definitely work on this board.

Worse case (or maybe best case, I can install NVRAM on it.)

Email me directly LockWhenLit@gmail.com

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

#15 5 months ago
Quoted from Borygard:

Worse case (or maybe best case, I can install NVRAM on it.)

NVRAM works on a SAM board?

#16 5 months ago
Quoted from PinballManiac40:

NVRAM works on a SAM board?

Yes. I've done many at this point.

Obviously the ICs are surface mount on this board, so I need to have the CPU in shop to do the install on these.

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

#17 5 months ago
Quoted from Borygard:

Yes. I've done many at this point.
Obviously the ICs are surface mount on this board, so I need to have the CPU in shop to do the install on these.
--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

Sweet !

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