Columbus, IN
On to the next Cratex test case...
A WPC-89 CPU with medium alkaline damage.
The board took probably 3 hours from start to finish.
I calculate supplies on the repair at ~$15 including parts.
No damaged traces thankfully, so no jumpering required. That can often add significant time to a repair, and makes it unappealing. Also, it hadn't been previously reworked - these fine traces likely won't withstand multiple repairs.
I used Cratex's 'ultra fine' bullet on this. I think it was #14. Might have been #15 - they are similar.
Cost on these is about a buck, but you have to buy 100 of them to get that price. Ran at the #3 speed setting on my Dremel - will try to find out what RPM that is. Used about 1/2 to 2/3rds of the bullet.
After the traces were cleaned up, I did a light coating with MG Chemicals 419C. Stuffed the board, soldered the parts in, cleaned flux, tested, and sealed again after complete with a slightly heavier coat.
I think the Cratex will work very nicely on these.
Probably will 'batch' the next job, have resistors and such on order from jameco as I ran out of 1.2k ohm 1/4 watt resistors and had to use 1/2 watt on this board. I think if I do multiples, I could cut 1/2 to 1 hour per board from the job.
