e. To eliminate any static charge between you and
the MX8750, "ground" yourself to the MX8750
chassis by touching an aluminum side plate.
f. Remove the old E-PROM from its socket using
the "chip puller". Or, using a small flat-blade
screw-driv
er,
very gently pry up the rear of the
old E-PROM slightly as shown in Fig. 3.
Then pry up the chip’s front
until it can
be lifted from its socket as shown in Fig. 4.
Be sure the screwdriver “catches” the under-
side of the E-PROM and not the plastic
E-PROM socket.
4.3 INSTALLATION
a. Remove the new E-PROM from its packing,
grasping it ONLY by the ends and not the pins
.
b.
To eliminate any static charge between you and
the MX8750, "ground" yourself to
its chassis.
c.
Align the new E-PROM with the now-empty
E-PROM socket so that the notched end is near
the MX8750 front panel as shown in Fig. 5.
d. Gently position the E-PROM so that all 28 pins
are mating with the 28 pin sockets. This may
require bending the pins slightly inward.
DANGER: Installing the new E-PROM incorrectly will
damage the E-PROM and/or the MX-8750.
e. Apply downward pressure to force the pins into
the E-PROM socket until they are fully seated.
Push on one then the other end in alternating
fashion "working" the E-PROM into its socket.
f.
Double check that the notched end of the
new E-PROM is towards the front panel.
g. Replace the MX8750 top cover and re-install
the seven screws removed in step 4.2c.
h.
Reconnect the AC power cable and all input and
output cables removed in steps 4.2a and 4.2b.
i. Power up the MX8750 and watch the input
level LEDs. The E-PROM Version will be briefly
indicated by which left and right channel LEDs
illuminate. For example: the 1st left LED and the
2nd right LED would indicate E-PROM Version1.2.
Figure 3 Prying Up the Rear of the E-Prom
Figure 4 Lifting the Old E-Prom From its Socket
Figure 5 Showing the Notched End of the New E-Prom
This completes the installation and the MX8750 is now ready for use.
Section 5 Service
If you have any questions about installing the new E-PROM contact the EAW Service for assistance:
Eastern Acoustic Works Tel 800-992-6001 (USA only)
EAW Service Department Tel 508-234-6001
One Main Street Fax 508-234-3776
Whitinsville, MA 01588 USA E-mail service@eaw.com
Thank you for purchasing
EAW products
One Main Street, Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 web www.eaw.com
The Laws of Physics | The Art of Listening
EAW is the worldwide technological and market leader in the design and manufacture of high-performance, professional loudspeaker systems.
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