Differences

This shows you the differences between two versions of the page.

--- blog:x68_pro_fault2 [2020/09/15 19:42] – [Conclusion] john
+++ blog:x68_pro_fault2 [2020/09/17 13:57] (current) – [Removing IC's from Corroded Board] john
@@ Line 63: / Line 63: @@
 ===== IC Donation! =====
 About the only way forward from here is to use the intact IC's from the new IO board (the one //with// corrosion), transplanting them onto the old IO board (the one //without// corrosion).
+Corroded IO board, with chips for removal:
+{{:blog:img20200916100513.jpg?500|}}
 Since I'm reasonably confident that the old IO board traces are intact, but that I've already had to replace several of the audio IC's, it's reasonable to assume that there are more faulty IC's.
@@ Line 68: / Line 72: @@
 To do this, I'll need the following DIP sockets:
-x DIP 8
+   * 1x DIP 8
-x DIP 14
+   * 13x DIP 14
-x DIP 16
+   * 5x DIP 16
-x DIP 18
+   * 1x DIP 18
-x DIP 20
+   * 4x DIP 20
-x DIP 24 double space
+   * 2x DIP 24 double space
-x DIP 40 double space
+   * 3x DIP 40 double space
-x DIP 42 double space half pitch
+   * 2x DIP 42 double space, half pitch
+==== Removing IC's from Corroded Board ====
+Took images of the IC's I was removing, just to verify with the [[blog:x68000_pro_ic_list|IC list]] I made for the original machine:
+{{:blog:img20200916100353.jpg?400|}} {{:blog:img20200916100439.jpg?400|}}
+{{:blog:img20200916100425.jpg?400|}} {{:blog:img20200916100404.jpg?400|}}
+.... components removed from right hand of IO board:
+{{:blog:img20200916120842.jpg?400|}} {{:blog:img20200916120847.jpg?400|}}
+Now to do the left hand of the board (the part which is heavily corroded)...
+{{:blog:img20200917125713.jpg?600|}}
+That's it. Completely depopulated of all IC's (except the two surface mount chips). Let's jump to installing those IC's [[blog:x68_pro_fault#so_what_now|on the original board]].