Parts; Front Panel; Brain - Mackie HDR 24/96 Service Manual

HDR 24/96 EPROM Replacement
Models affected:
If you are working on an HDR 24/96 hard disk recorder before serial number CD11218, please update the
EPROM to Revision 1.2 or higher. Changing the EPROM may be one fix for the "system error 43" message.
Note:
If the EPROM is before Rev 1.2, the initial front panel
message "loading..please wait" is all lower case letters.
If the EPROM is Rev 1.2, then the initial front panel message
"Loading..Please Wait," has some upper case letters.
Safety Warning:
Caution! These instructions are for use by qualified personnel only. To avoid electric shock, do not
perform any servicing unless you are qualified to do so. Refer all service to qualified personnel.
ESD Warning:
Caution! The HDR 24/96 should be treated with respect and repaired using all standard ESD precautions.
Tools Required:
Phillips screwdriver, ESD wriststrap and workstation
Parts Required:
EPROM (revision 1.2 or higher) 080-174-00
Overview
The EPROM replacement is not a major job, so
fear not. The EPROM is fitted to a socket on the
Brain board in front of the internal hard drive.
Procedure:
1. Turn off the power to the HDR 24/96.
2. Remove all cords (including the power
cable and cables) from the HDR 24/96.
3. Place the HDR 24/96 on a soft surface.
4. Undo the three screws on each of the
rack brackets, just enough to give a little
slack when removing the top cover.
5. Remove the top cover by undoing
the other screws shown.
remove
HDR 24/96 EPROM replacement, SSE Jan 2001
HDR 24/96

front panel

display just
after turn-on
remove
slacken
(both sides)
remove from
both sides
HDR Eprom.pdf, page 1 of 2