Monochron Pong Problems

Tick Tock Clock Kits

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Monochron Pong Problems

Postby JoeInAtlanta » Mon Oct 24, 2011 7:37 pm

Following is the issue I just sent by e-mail, which you requested I post on the forums.

I recently ordered and assembled the Monochron Pong Clock (Invoice 107859). The assembly went without a hitch, but now there are significant problems with the clock:

  1. There are “artifacts” – broken horizontal lines – on the display. When the ball moves over one of these spots, it disappears. But then is usually re-drawn nearby when the ball moves over a different spot.
  2. The time is perfectly accurate when it runs – even to the second. But then it gets stuck and fails to advance at all.

You can see both problems on the video linked here: http://www.youtube.com/watch?v=DsZL0tHuYpw (the video is over two minutes long, but the time never advances).

(Note that on the video it is difficult to see the ball at all – though you can easily tell where it is by the behavior of the paddles and the on-screen artifacts. This, however, is not an additional problem: In real life, while much dimmer than the paddles, the ball is easily perceived.)

And here is a still image of the screen:
Image

I assembled the clock this past Friday evening with friends. They left and I went to bed shortly after finishing the project – and I noticed the display problems the first time I looked at the clock that next morning. I have found that I can re-start the time by re-setting it – but that fix is not permanent and the artifacts re-appear almost instantly.

I searched the forums to see if this was a known issue – but didn’t find any similar concerns. I did find an issue about vertical striping (http://forums.adafruit.com/viewtopic.php?f=41&t=22934&hilit=monochron+display), which I also noticed as soon as the clock was turned on. This vertical striping, alone, was not a deal-breaker for me – but the other issues definitely are.

What do we do about this? I would be satisfied with the purchase if it were behaving properly. But I am not at all satisfied as things currently stand.

Thank you for whatever assistance you can provide.
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Re: Monochron Pong Problems

Postby adafruit » Mon Oct 24, 2011 7:45 pm

please post picture of the board assembly, front and back, the time problem sounds like the DS1307 or battery may not be soldered right
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Re: Monochron Pong Problems

Postby JoeInAtlanta » Mon Oct 24, 2011 7:53 pm

I'll be happy to do that if necessary, but I won't be able to do so for a day or two.

Chasing down the clock malfunction, however, seems like a bit of a banned-chase. By e-mail you said it sounds like the screen is broken -- which strikes me as an issue that is (1) much more significant and (2) completely unrelated to the clock.

If you'll give me a preview into the next series of steps -- both in what you need from me and what I can expect -- it may help me to answer all of your questions, and you to answer all of mine, in a shorter series of messages.
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Re: Monochron Pong Problems

Postby adafruit » Tue Oct 25, 2011 4:15 pm

thanks, we think there are -two- problems, the display and the clock time. the time is likely an issue with the DS1307/crystal/battery. the display may be a soldering issue or it might be the LCD module. both are very fixable, but we just want to check out your component placement to make sure!
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Re: Monochron Pong Problems

Postby JoeInAtlanta » Tue Oct 25, 2011 7:53 pm

Okay, here are the pictures:

Image

Image
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Re: Monochron Pong Problems

Postby adafruit_support_bill » Wed Oct 26, 2011 3:54 pm

Looks like you have everything in the right place. But some of the solder joints look a little 'cold' in the photo. Sometimes it is just the lighting, but if a joint has a rough or 'frosty' appearance, it usually means that the solder didn't flow properly. Using a clean, hot iron, re-flow any joints that don't look smooth and shiny.

Also, did you remember the blob of solder under the battery holder? A bad battery contact could explain erratic RTC behavior.
Image
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Re: Monochron Pong Problems

Postby JoeInAtlanta » Wed Oct 26, 2011 5:49 pm

Thanks. As for the blob under the battery, we definitely remembered that. The battery fits very snugly in its holder.

I'll check into the solder joints. A friend of mine with much better tools and much more experience (including building your x0xb0x project successfully) has promised to come over and re-solder questionable joins and generally look it over. (He was also here for the initial assembly of the Pong clock -- but we didn't have his tools at that time, and he let me do all the work to build my experience.)

Unfortunately, he is out of town until next week -- so I won't have an update for you until Tuesday at the earliest.
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Re: Monochron Pong Problems

Postby JoeInAtlanta » Thu Nov 03, 2011 9:30 pm

Good news: It's working properly now.

My friend with better tools and more experience did indeed come over on Tuesday. He saw a few joins that looked questionable to him and went over them. We don't know exactly which one(s) might have been the culprit -- but the clock display is not showing the horizontal-line artifacts anymore, and it is keeping time properly.

I gave it 48 hours before posting this update, as the original problems didn't manifest themselves immediately -- but I've seen no sign of a problem now, so I'm optimistic that everything is good. (I'll follow-up, of course, if the problems recur.)

Thanks.
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need help at the original pong clock

Postby adajobjob » Mon Jan 09, 2012 1:00 pm

Hi Forum,
I´m a happy first owner of one original pong clocks from 2006. The clock had worked perfect until yesterday. To clean the wall behind the clock i plugged it from power. After plugged it back on power the screen is now only flashing in an intervall of 1/2 second. Don`t know what i can do? Any help?

JJ
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Re: Monochron Pong Problems

Postby adafruit » Mon Jan 09, 2012 1:08 pm

hiya!

we were not selling the MONOCHRON clocks in 2006. where did you purchase this from?

thanks,
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Re: Monochron Pong Problems

Postby adajobjob » Mon Jan 09, 2012 2:35 pm

Hi adafruit, I´m one of the happy guys who got an "original" pong clock (number 62 from 400) back in 2006 (http://pongmuseum.com/history/_transfor ... gclock.php). And have no knowledge or idea to rescue it. So i searched via google and found your forum.
I know that this isn`t 100% the place for my clock and you are talking about your own mod. But maybe you can help me anyway

JJ
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Re: Monochron Pong Problems

Postby adafruit » Mon Jan 09, 2012 2:43 pm

adajobjob wrote:Hi adafruit, I´m one of the happy guys who got an "original" pong clock (number 62 from 400) back in 2006 (http://pongmuseum.com/history/_transfor ... gclock.php). And have no knowledge or idea to rescue it. So i searched via google and found your forum.
I know that this isn`t 100% the place for my clock and you are talking about your own mod. But maybe you can help me anyway
JJ


thanks for posting, this isn't a product we made or support, we cannot assist you, sorry :(

thanks!
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Re: Monochron Pong Problems

Postby adajobjob » Mon Jan 09, 2012 2:57 pm

This is not the answer i was hoping for :-(( But anyway thank you and best regards.

JJ
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