(Topic ID: 136642)

TZ Frequently resetting to factory settings


By Jargus

4 years ago



Topic Stats

  • 20 posts
  • 6 Pinsiders participating
  • Latest reply 4 years ago by Jargus
  • Topic is favorited by 1 Pinsider

You

Linked Games

Topic Gallery

One image has been uploaded to this topic. (View topic image gallery).

image.jpg

#1 4 years ago

I picked up a TZ about 6 months ago. It needed a lot of work, but most of it was elbow grease, and the machine plays pretty well now. A couple issues are left that are mostly just cosmetic and will require spending a little money.

The only puzzling thing is that the machine frequently factory resets when I leave it off for more than a few days. If I play it every day, or every couple days, it seems to be fine. But when life catches up to me and I leave it off for a week or more, it will often report "Factory Settings Restored"'.

I don't see any board corrosion and the batteries are fresh. Any ideas?

#2 4 years ago

I'm no expect but perhaps a battery clip issue. Loose/cold solder joint on the clips legs? Maybe check for continuity from positive to negative on the holder?

#3 4 years ago
Quoted from Jargus:

I picked up a TZ about 6 months ago. It needed a lot of work, but most of it was elbow grease, and the machine plays pretty well now. A couple issues are left that are mostly just cosmetic and will require spending a little money.
The only puzzling thing is that the machine frequently factory resets when I leave it off for more than a few days. If I play it every day, or every couple days, it seems to be fine. But when life catches up to me and I leave it off for a week or more, it will often report "Factory Settings Restored"'.
I don't see any board corrosion and the batteries are fresh. Any ideas?

Check the battery holder again. Look at all 6 pads for any corrosion. If it had battery leakage problems in the past who knows. You should actually remove the holder. There are a few options but a remote holder at least.

Also, make sure those batteries are still fresh. On the CPU near the batteries are diodes D1 and D2. I forget what one, but when one goes bad it drains the batteries by trying to power the board off the batteries.

#4 4 years ago

You should really get the batteries off the MPU board soon. They will leak.
Here's some info on the Factory Settings issue.
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Settings_Not_Held_or_Battery_Depletes_Rapidly
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#5 4 years ago

I do plan on doing a remote battery holder at some point, but it was low on my priority list. Maybe I'll bump it up. I'll also check the diodes, if I can figure out how. Been a while since I've done electrical stuff.

Thanks

#6 4 years ago

It'll come back to you like riding a bike.
Meter on diode check.
Black on one end, red on the other.
You'll either read open (diode is blocking flow of voltage) or .5 to .7 which is the characteristic voltage drop for many diodes.
Swap leads, and you'll get the other reading.

One of the idodes is a 4148. The other is a 1N5817, The volage drop for a 5817 is less than the typical .5 to .7.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#7 4 years ago

Checked the batteries. All three read steady at over 1.54 V. In the holder, I get a steady 4.99 across all three. There's a little corrosion on the side clips, but the contact points all look clean.

Measured both diodes. D1 measures -212 (the negative seems weird to me, but I've never really tested diodes before). D2 reads at 499.

At the memory, I'm reading a voltage of 4.44, which appears to be correct, accounting for the drop across the diode.

So none of those would appear to be the issue, unless that 1 negative sign is a concern.

#8 4 years ago

Forgot to mention that both D1 and D2 read open in the opposite direction, so they're not shorted.

#9 4 years ago
Quoted from Jargus:

... There's a little corrosion on the side clips, but the contact points all look clean...

This is very concerning. If you're having the issues you describe, there's certainly more battery leakage damage than you're able to see. Clip that battery holder off the board and install an alternative. Or, at the very least, post a photo of the battery holder area.

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

#10 4 years ago

Everything looks pretty clean, except for the clips.

image.jpg

I just ordered all new ribbon cables (a suggestion from outside PInside). I've had luck with that resolving weird issues before.

I have every intention of going with a remote battery holder, but if it turns out that I've got damage I can't see, I might just go with a Rottendog board that comes with a remote battery holder.

#11 4 years ago

Unusual looking corrosion.
I can't see further damage, but as Rob suggested, cutting that battery holder off is a good idea and will enable inspection of the board under it.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#12 4 years ago

The board looks good, but that battery holder is REALLY bad, and very unusual. Definitely has to be removed.

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

#13 4 years ago

Remote Battery holder is ordered. Should arrive about the same time as the ribbon cables. Hopefully those two swaps will fix the problem.

I'll remove the mpu board to do the battery holder swap, and post pictures front and back.

#14 4 years ago

Well, more weirdness.

The new ribbon cables arrived today. I swapped them out, and now the game resets on every boot. I put the original cables in and the game still resets on every boot. So the problem likely isn't the cables. I might have introduced a new problem, but it seems more likely that I've exacerbated the existing issue.

Each of the batteries still measures at > 1.5V while in the holder. However, oddly enough, the voltage across all three batteries is 0. If I measure across for the first two batteries, I get a voltage of 3.0. If I measure across the middle and 3rd battery, I get a voltage of -1.5V. Seems like I've got some sort of strange short going on. Perhaps the metal dust in the machine has shorted something.

So, if the voltage across all three batteries is indeed 0, it's no surprise that settings aren't being saved. When the remote battery holder arrives, I'm going to pull the board and try wiping it down with rubbing alcohol to get it as clean as possible before installing the holder.

#15 4 years ago

Uh..

Are all your batteries in the right way? All "+"s should be UP..

They should NOT be staggered..

#16 4 years ago

Yep, they are correct... Last week they measured 4.99 across all three. Pretty sure it's a short of some kind, probably in the battery traces.

#17 4 years ago

You must be measuring from different points.
There is either a pulled through hole or a poor battery connection pad.
Post a pic zoomed on the holder. This is interesting.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#18 4 years ago

No, measuring from the same points, but I did pull the board to take a look, and I'm guessing a disturbed something when I put it back in.

I'll be cutting off the holder this weekend and replacing to with a remote, and cleaning the board. We'll see what happens after that.

1 month later
#19 4 years ago

Alright... health issues had me down for a few weeks, but I finally got the battery holder cut off and replaced with a remote battery holder. I got a good constant voltage across my solder points, and the game seems to be retaining its settings now. Also realized that the country jumpers were in an undocumented configuration. Reset them to America2 (since most were cut already), and now everything seems to be working except for one of my flippers. I'll be starting a separate topic on that.

#20 4 years ago

The flipper was easy... Blown fuse. Of course, the fuse for that flipper wasn't the one the manual claimed.

Promoted items from the Pinside Marketplace
From: $ 149.00
Playfield - Toys/Add-ons
Sparky Pinball
From: $ 16.95

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside