ADC SUPER SIX S-100 Technical Manual page 147

For the users of Super Six computer board the following
changes apply to any Super- Six up to Rev. "M":
1. Add a 1 K Resistor (pull up) to the
BRO output of U2l (D.M.A.).
2. Change the value of Rll and R16 from
1 K each to 2 K, for more
v.c.o.
range.
3. Connect
Ph~ntom
toU33 pin 1, for all memory
to be turned OFF when active.
And for Super Six users running at 6 MHZ with up to
Rev.
PM"
board, using any other non Advanced Digital
boards that has one or the two nf?:xt characteristics.
1. An I/O board latches the incoming data on
the falling edge" of (pWR*) during an I/O
transfer of data.
2. A memory transfer where the signal (pSTVAL*)
is expected to fall inSide of (PSYNC) active.
Modify your Super Six, through all the rework instructions,
else do only first three steps.