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Accessory Installation Guide
C-3
CONTROLLER INSTALLATION
KIT
98951A
WARNING
LIVE VOLTAGES ARE EXPOSED INSIDE FLEXIBLE DISC
MEMORY. DISCONNECT POWER BEFORE BEGINNING IN-
STALLATION. ALSO, UNrT WEIGHS BETWEEN 45 AND 60
POUNDS
(20
AND
27
KG). BE CAREFUL WHEN LIFTING.
1. Remove power and interface cables from rear panel connectors.
2. Open the drive doors and pull at points A and B (as shown in Figure C-1) to remove
the front panel.
3. Remove the screw securing the HP-IB connector retainer hanging below the right
drive (see Figure C-3).
4. Free the end of the flat, gray HP-IB cable behind the retainer and bring it out the front
of the slot right under the drive.
5. Slide the controller board into the unit from the front, component side up. Be sure the
flat, gray cable stays above the controller board with the connector out the front of the
unit.
6. Point the board extractors (see Figure C-2), located at the front corners of the control-
ler board, straight out and then push the controller board as far into the unit as
possible. Push the extractors flat into the controller board, thus seating the controller
board the rest of the way into the unit.
7.
Attach the connector on the gray, flat cable onto the edge connector on the right front
side of the controller board (J3).
8.
Install the retainer for the HP-IB connector just attached, as shown below in Figure
C-3.
WARNING
THE 9895A DOES NOT CONTAIN OPERATOR SERVICEABLE
PARTS. IF THE FOLLOWING OPERATION VERIFICATION
TESTS DO NOT EXECUTE PROPERLY, REFER TROUB-
LESHOOTING ACTIVITIES TO SERVICE-TRAINED PERSON-
NEL.
9. Re-connect the power cord to the unit.
10. Switch the disc memory on and press the self-test switch (see Figure C-4}. Upon
completion of the test, the LED display should have only the right-most LED on
(under the
*
of the ABCD* label). Any other final LED display pattern indicates that
the test has failed.
11. If the above test failed, repeat the test by pressing and releasing the self-test switch.
Should the test repeatedly
fail,
refer to the troubleshooting procedures in Chapter 3.
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