Eventide ARGUS 3000 - Location of Lithium Battery on 5000 and 7000 CPU Boards

4. The rear cover is connected to the CPU board. Slowly pull the rear cover out of the unit housing
until the board is exposed approximately 1-1/2 inches.
5. A ribbon cable connects the solder side of the CPU board to the mother board. Disengage this
connector and slide the CPU board completely out of the unit's housing.
6. On the rear cover there are two pan-head screws, located at either end of the 25 pin D-connector,
which secure the rear cover to the CPU board. Separate the CPU board and rear cover by first
removing these screws.
Remove The Old Battery
7. The lithium battery assembly is mounted near the D-connector. (Refer to Figure 6.) Note the
polarity of the two wires from the battery to the CPU board. Using the razor blade or X-acto knife,
cut along the shrink tubing on the battery lead. Unsolder these two wires from the terminals on the
CPU board.
OPERATING SYSTEM ROMS
' /
RED
00 OO
□ O 00
OO OO
OO OO
OO OO
OO OO
OO DO
OO OO
OO OD
OO OO
OO OO
DO OO
DO OD
OO OD
BLACK
fr—
SHDPTING PLUG JACK
BATTERY
Figure 6. Location of Lithium Battery on 5000 and 7000 CPU Board.
8. Two 1/2 inch screws connect the battery assembly to the CPU board, holding the battery in place.
Remove these screws from the solder side of the CPU board. The battery is now loose and can be
discarded.
Insert The New Battery
9. Position the new battery assembly on the CPU board and secure it in place with the two 1/2 inch
screws, inserted from the solder side of the CPU board.
10. Place the shrink tubing insulation over each wire. Cut the wires to the same length as on the old
battery and strip the insulation to expose 1/8 inch of wire. DO NOT ALLOW THE LEADS TO
SHORT.
11. Solder the wires from the new battery to the terminals on the CPU board. Be sure to use the same
polarity as the previous battery. (Refer to Figure 6.)
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Argus Maintenance Manual Part #5006 July, 1993