Index: en/devices/ibm1130-blog.php
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--- en/devices/ibm1130-blog.php (revision 669)
+++ en/devices/ibm1130-blog.php (revision 672)
@@ -63,4 +63,10 @@
console-test program (07.09.2014).
+
+
20.09.2014: We are currently creating a list of known problems regarding the
1132 printer. Its restoration is especially challenging. After being unused
@@ -74,4 +80,12 @@
Now the mechanics of the printer runs smoothly without any signs of trouble.
+30.09.2014: The printer test finally works but there were still problems in the printout:
+Characters were overprinted every 16th column. This could be traced back to
+the buffer memory of the printer. Bit 6 of the buffer, an SLT-flip-flop, was
+stuck. How an SLT circuit can be repaired is described in more detail here:
+Deeper insights.
+
+
+
This section will be gradually continued.