Depotted electr. ignition controller, need to ID a part
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From: spamTHISbrp on 20 Apr 2007 13:16 Taking apart an old CDI ignition system to revive it, am having trouble ID'ing a Fujitsu 14-pin DIP. PN is MB4213 Any help much appreciated BTW, it had a slightly-harder-than RTV potting compound that yielded nicely to a heat gun- it got crumbly when heated, returns to being tough when cool. Dave
From: James Sweet on 20 Apr 2007 14:15 spamTHISbrp(a)yahoo.com wrote: > Taking apart an old CDI ignition system to revive it, am having > trouble ID'ing a Fujitsu 14-pin DIP. > > PN is MB4213 > > Any help much appreciated > > BTW, it had a slightly-harder-than RTV potting compound that yielded > nicely to a heat gun- it got crumbly when heated, returns to being > tough when cool. > > Dave > While I can't help you ID that part, I will say that experience has taught me that the hard to find/test or otherwise exotic part in a device is rarely the problem. Did you check all the simple stuff first?
From: spamTHISbrp on 20 Apr 2007 14:33 On Apr 20, 2:15 pm, James Sweet <jamessw...(a)hotmail.com> wrote: > spamTHIS...(a)yahoo.com wrote: > > Taking apart an old CDI ignition system to revive it, am having > > trouble ID'ing a Fujitsu 14-pin DIP. > > > PN is MB4213 > > > Any help much appreciated > > > BTW, it had a slightly-harder-than RTV potting compound that yielded > > nicely to a heat gun- it got crumbly when heated, returns to being > > tough when cool. > > > Dave > > While I can't help you ID that part, I will say that experience has > taught me that the hard to find/test or otherwise exotic part in a > device is rarely the problem. Did you check all the simple stuff first? My 1st goal (pure curiosity) is to group the parts into the main subsystems- I'm pretty sure they are a 12VDC to 100VAC (or so) inverter, an RPM sensor (built out of discretes), an advance mechanism, power storage section, and of course the trigger that shoots the juice to the coil. Probably the RPM/advance stuff is something clever, a few discretes and probably the IC. Dave
From: Ken Weitzel on 20 Apr 2007 18:46 spamTHISbrp(a)yahoo.com wrote: > Taking apart an old CDI ignition system to revive it, am having > trouble ID'ing a Fujitsu 14-pin DIP. > > PN is MB4213 > > Any help much appreciated > > BTW, it had a slightly-harder-than RTV potting compound that yielded > nicely to a heat gun- it got crumbly when heated, returns to being > tough when cool. Hi Dave... Google MB4213 and you'll get several hits... hope that one or more are helpful. Take care. Ken
From: spamTHISbrp on 20 Apr 2007 19:04
On Apr 20, 6:46 pm, Ken Weitzel <kweit...(a)shaw.ca> wrote: > spamTHIS...(a)yahoo.com wrote: > > Taking apart an old CDI ignition system to revive it, am having > > trouble ID'ing a Fujitsu 14-pin DIP. > > > PN is MB4213 > > > Any help much appreciated > > > BTW, it had a slightly-harder-than RTV potting compound that yielded > > nicely to a heat gun- it got crumbly when heated, returns to being > > tough when cool. > > Hi Dave... > > Google MB4213 and you'll get several hits... hope that one or > more are helpful. > > Take care. > > Ken My google-fu is fair, but alas, none are matches. I believe this was prob. an OEM inly part. Dave |