Is there anyway to solder a zif socket into the memcal? or do you just press it in, hot glue, and hope for the best?

After unsoldering the original prom, the pins leave much to be desired, there's a bit of gap and the zif sockets have rather narrow pins so I'm just concerned I might not get the best possible contact.

Thanks

 

Solder in a DIP socket and then put the ZIF socket onto of that.

 

Change or put you (with care) the 28 pins of ZIF socket at 90º (like an "L" format) . Then you 'll can solder the extremes of each pin (in L position) to the memcal contacts.

//
____//_____
ZIF : !___//_____!
_! !_ ====: extreme for solder.



Regards,


Denis V.

 

//
__ //___
!______!
_! !_

 

Get one of Moates adapters.
Clean and perfect.
It allows using a ZIF, and the oem memcal piggybacks onto it to use the misc other chips.

 

Im using a zif because of the price difference


Im just currious whether or not the contacts are going to hold.

Denis: I think my zif sockets pins are to short to do what you're describing

 

Do what was suggested with soldering in a 28-pin socket and then plugging the ZIF into that. Those low-pro ZIFs have pretty crappy material to be getting good contact on Memcal patches that are already buggered up. Then again, the low-pros take some force to pull the lever, and you might tweak the Memcal or socket when you work it. Dunno...

By the way, if you need a nice sharp tip on an el-cheapo soldering iron that will last, just unscrew the cheapo tip (assuming it comes out that way) and check the threads. They're probably 8-32 or something. Then take a std. 8-32 bolt and cut it, grab it, and put it to the bench grinder to put a nice tip on it. Then you can use that as the tip. It will not flux/melt away like the cheapo copper-type that comes with the 'Weller' and such. Costs $.02 and will last forever, and can be made into any shape you want.

Reason I say is cause to solder a socket (or ZIF directly for that matter) onto a Memcal, you gotta have a pretty fine tip...

 

Dear tpi roc:

My ZIF socket was a "digi-key" part Nº A347-ND named "socket 28pin zif lo profile".

The memcal was from a 1227730 ECM.

Today, the solder works good.

The idea was from a friend. He is electronic engineer.


The horizontal line of the "L" format is the important thing. The vertical line can be very short.

Regards,

Denis V.

 

does this mean the LowPro ZIFs arent as stout as the standard ones

 

Yes it does. But if they're soldered in, they're not so bad for sticking chips into. Wouldn't use them to accept an emulation header though.

 

or find yourself a hypertech memcal...the one I got had the chip press fit in, not soldered. I simply popped it out installed the DIP socket and then a ZIF to that....it takes all of 2 seconds to do chip swaps under the dash now with no strain or stress applied anywhere.


Just a thought.

 

I soldered in a 28 pin socket on the mecal for my gta and then the ZIF on top of that. Had one problem with it within the first week or so, some touch up soldering and its benn good for 1.5+ yrs now :-)

Ill never do it again though :-) They dont fit well when u have to place the ecm back up in the dash. Real pain to desolder and resolder the chip and socket as well. The adapters are worth it just from that aspect as well as being able to put the memcal cover back onto the case with a little tweaking
later
Jeremy