Peter,
Yes, that does indeed sound like the Hughes module used in the Bulova Big Block, the Wittnaur Polara, and many others:
http://crazywatches.w.interia.pl/photo/ ... lock2.html
I was wondering if anyone might have some insight into a problem that I'm having with one of these modules. It keeps nearly perfect time, but it has a problem displaying the digits correctly.
It usually displays the last digit of the minutes in base 4 instead of base 10. So, the last digit counts up to 3 and then starts over counting at 0 again. So it will display:
8:31, 8:32, 8:33, 8:30, 8:31, 8:32, 8:33, 8:30, 8:31, 8:40...
When displaying the seconds, it usually displays the digits correctly, but occasionally starts to display them incorrectly and sometimes skips integers.
It's still sort of functional as long as you didn't have to be anywhere within an accuracy of closer than about 5 minutes!
I have another later DOW Hughes module that has segment digits instead of dot digits, so I'm tempted to try Ed's famous "Pimp My Block" module conversion as described in the link below. The problem is that I'm not sure how difficult it is to remove the traces. He suggests "sandblasting" them away rather than scraping them away, but I'm not sure of a way to do that:
http://www.dwf.nu/viewtopic.php?t=3287& ... df691ead23
If this conversion is easy, then I'll give it a go, but it looks a little intimidating.
Ideally, I'd rather keep the original module because I like the dot digits better, but don't have a clue at a fix and I suspect that the IC is probably toast. Any suggestions are appreciated.
-abe.