Aug 252017
 

A quick repair for this Sky Kid (Namco) I received some days ago :

Board was in near mint condition but it didn’t boot sitting on a semi-static garbage screen (which was looping sign that watchdog was active)

Most of the devices were socketed so for first I ruled out the many custom ICs present, they were all working.Then I tested the RAMs out of circuit.Two Mitsubishi M58725P (2k x 8-bit static RAM) failed (at different address location) 

Replaced them with compatible 6116 and board successfully booted with no further issue.Job done.

 Posted by at 1:49 pm