Advanced Instruments 3D3 - Board Set Replacement; Instruments with a Two-Board Set; Two-Board Set

4D3P620 Rev3
(4D35 Service Manual)
Page 2 of 4
b. Remove the two screws from the rear
panel of the back cover and lift off the
back cover.
c. Remove the four screws from under-
neath the front cover, lift the front
cover slightly up and then slide it for-
ward and off.
4. Attach the static grounding strap to your
wrist and stick the adhesive end to a suit-
able bare-metal ground, such as the rear
panel.
INSTRUMENTS WITH A TWO-BOARD
SET:
Board Set Replacement:
1. Remove the wiring connectors from the
application board (larger of two).
2. Gently pry the board set off the four
snap-on standoffs.
3. Remove the replacement board set from
its anti-static bag, taking care not to dis-
turb the options/configuration switch
SW1 (A), located on the processor board
(smaller of two).
4. Press the new board set onto the four
snap-on standoffs so that the words
“Advanced Instruments, Inc.” are located
in the upper left corner.
5. Reconnect all wiring connections and
proceed to the REASSEMBLE AND
CHECKOUT instruction, below.
Application Board (larger of two)
Replacement:
1. Remove the wiring connectors from the
application board (larger of two).
2. Gently pry the board set off the four
snap-on standoffs.
Two-Board Set
A
C
B