Crown Audio SMX-6 Backup Retro Module - Manual (Page 2)

General
The purpose of this modification is to enhance the IQ SMX-6 Mixer with updated
circuitry and firmware to eliminate possible program memory loss due to an AC
power brownout. At the operator level there are no changes in mixer operation
associated with this firmware upgrade. This kit retrofits all SMX-6 Mixers.
Contents
This kit, Crown Part Number 125506-1 includes instruction sheet, two labels, and
the hardware assembly.
Additional Items Required
1. PC with appropriate IQ software.
2. Communication cables (specific cables required depends on method of
connection).
3. Phillips screwdriver.
4. IC puller.
5. Small pair of diagonal wire cutters.
Precautions
1. All SMX-6 data should be saved to disk before performing any of the
procedures below.
2. Use full static precautions including static mats, wrist straps, etc.
3. Ensure the AC power is removed from the unit whenever the cover
is removed.
4. THIS MODIFICATION SHOULD ONLY BE PERFORMED BY A QUALI-
FIED TECHNICIAN.
Installation Procedure
1. Remove all audio and data connections to the SMX-6.
2. Remove AC power from the SMX-6.
3. Remove the top cover from the SMX-6 by removing eight screws. (Two at
each end, three top center of back panel, one top center of front panel).
4. Remove the IC or previous retro module from the 40-pin socket labeled
U96. This socket is located between two other 40-pin sockets near the
battery, and can be identified by the label “U96” silk screened on the board.
Strap Leads