diff --git a/prod/doc/analysis.html b/prod/doc/analysis.html
index c16e5a4..4fd5e15 100644
--- a/prod/doc/analysis.html
+++ b/prod/doc/analysis.html
@@ -79,9 +79,22 @@ can be checked. If they are correct, proceed with checking the clock.
 
 <H3>Measurement points on atben</H3>
 
+The supply voltages on <B>atben</B> can be measured at the terminals of
+components as shown in this table:
+<P>
+<TABLE frame="border" cellpadding="2">
+  <TR><TH>Domain<TH>Voltage<TH>Component
+  <TR><TD>I/O<TD>3.3 V<TD>C3, C6
+  <TR><TD>Digital<TD>1.8 V<TD>C5
+  <TR><TD>Analog<TD>1.8 V<TD>C4
+</TABLE>
+<P>
+Ground can be accessed at the cover of the crystal.
+Note that the fiducials are not connected to ground.
+<P>
+This image shows the location of the measurement points:
 <P>
 <A href="atben-B.png"><IMG src="atben-B-small.png"></A>
-<P>
 
 
 <!-- ---------------------------------------------------------------------- -->
@@ -89,9 +102,24 @@ can be checked. If they are correct, proceed with checking the clock.
 
 <H3>Measurement points on atusb</H3>
 
+The supply voltages on <B>atusb</B> can be measured at the terminals of
+components as shown in this table:
+<P>
+<TABLE frame="border" cellpadding="2">
+  <TR><TH>Domain<TH>Voltage<TH>Component
+  <TR><TD>USB<TD>5.0 V<TD>C1
+  <TR><TD>I/O<TD>3.3 V<TD>C2, C10, C13
+  <TR><TD>Digital<TD>1.8 V<TD>C12
+  <TR><TD>Analog<TD>1.8 V<TD>C11
+</TABLE>
+<P>
+Ground can be accessed at the cover of the crystal, at the shield of the
+USB connector, or at the test point P11.
+Note that the fiducials are not connected to ground.
+<P>
+This image shows the location of the measurement points:
 <P>
 <A href="atusb-B.png"><IMG src="atusb-B-small.png"></A>
-<P>
 
 
 <!-- ====================================================================== -->
@@ -207,7 +235,7 @@ be good <B>atben</B> board on the same Ben at a comparable temperature.
 Up: <A href="index.html">Production and testing</A>&nbsp;
 Prev: <A href="test.html">Functional test</A>&nbsp;
 <HR>
-Last update: 2011-05-26&nbsp;&nbsp;<I>Werner Almesberger</I>
+Last update: 2011-05-27&nbsp;&nbsp;<I>Werner Almesberger</I>
 <HR>
 </BODY>
 </HTML>
diff --git a/prod/doc/atben.fig b/prod/doc/atben.fig
index eb0e8c5..87a38fa 100644
--- a/prod/doc/atben.fig
+++ b/prod/doc/atben.fig
@@ -40,7 +40,7 @@ Single
 	 1800 4005 2835 4005
 # B
 2 4 0 2 0 7 56 -1 15 0.000 0 0 7 0 0 5
-	 4995 4095 4590 4095 4590 3600 4995 3600 4995 4095
+	 5040 4095 4590 4095 4590 3555 5040 3555 5040 4095
 # A
 4 2 0 50 -1 18 24 0.0000 4 300 915 1890 4140 GND\001
 # A
diff --git a/prod/doc/atusb.fig b/prod/doc/atusb.fig
index aee3c07..19dbf83 100644
--- a/prod/doc/atusb.fig
+++ b/prod/doc/atusb.fig
@@ -53,7 +53,7 @@ Single
 # B
 2 1 0 3 4 7 55 -1 -1 0.000 0 0 -1 1 0 2
 	5 1 3.00 60.00 120.00
-	 10350 6750 9315 5985
+	 10350 5985 9315 5985
 # B
 2 1 0 3 4 7 55 -1 -1 0.000 0 0 -1 1 0 2
 	5 1 3.00 60.00 120.00
@@ -62,6 +62,13 @@ Single
 2 1 0 3 0 7 55 -1 -1 0.000 0 0 -1 1 0 2
 	5 1 3.00 60.00 120.00
 	 6525 8235 7425 8235
+# B
+2 4 0 2 0 7 56 -1 15 0.000 0 0 7 0 0 5
+	 9630 7020 9180 7020 9180 6480 9630 6480 9630 7020
+# B
+2 1 0 3 0 7 55 -1 -1 0.000 0 0 -1 1 0 2
+	5 1 3.00 60.00 120.00
+	 10350 6750 9360 6750
 # A
 4 2 4 50 -1 18 24 0.0000 4 300 855 6525 6975 CLK\001
 # A
@@ -81,10 +88,12 @@ Single
 # B
 4 0 0 55 -1 18 24 0.0000 4 390 1410 10395 4680 Analog\001
 # B
-4 0 0 55 -1 18 24 0.0000 4 300 555 10440 6930 I/O\001
-# B
 4 2 0 55 -1 18 24 0.0000 4 300 915 6435 8370 GND\001
 # B
 4 2 0 55 -1 18 24 0.0000 4 390 1275 6480 6255 Digital\001
 # B
 4 2 0 55 -1 18 24 0.0000 4 300 555 6435 6705 I/O\001
+# B
+4 0 0 55 -1 18 24 0.0000 4 300 555 10440 6120 I/O\001
+# B
+4 0 0 55 -1 18 24 0.0000 4 300 915 10440 6885 GND\001