Appendix V: Installation And Internal Settings Guide; Technically Qualified Personnel Only; Removing And Replacing The Cover; Installing An Optional Analog Expansion Card - Apogee AD-8000 Operating Manual

Appendix V: Card Installation and Internal Settings Guide
Technically-qualified personnel only!
WARNING. This section includes operations which require access to the inside of the unit. Removing
the cover may expose the user to dangerous voltages. As a result, the operations in this section should
be carried out only by technically-qualified personnel, and without power being applied to the unit.
Apogee cannot be held responsible for damage or injury caused by failing to follow these directions, failing to
use reasonable care during operations involving the removal of the top cover of the unit, or failing to use rea-
sonable precautions generally understood in the professional audio industry to be necessary when working
internally on equipment of this type, whether or not such precautions are included in this document.

Removing and replacing the cover

To remove the top cover of the unit, undo the retaining screws and set them aside. You will notice that
the screws from the front of the unit are shorter than the rest: ensure that these are re-inserted into
the front holes when you replace the cover, as inserting the longer screws into the front may damage
the front panel display circuitry resulting in a malfunction.
We recommend that when installing or removing cards, the unit is grounded to reduce the risk of damage
by static discharge. One method of doing this is to keep the unit plugged into a grounded, switched-off outlet.

Installing an Optional Analog Expansion Card

The Option Card slot at the rear of the AD-8000, adjacent to the power input connector, is utilized by the
optional stereo or 8-channel 24-bit D/A cards. To install one of these optional cards, you will need to remove
the unit from a rack, if so installed. You may wish to keep the unit plugged into a switched-off, grounded AC
receptacle so as to minimize the chance of static discharge, and avoid standing on carpeting while carrying out
this procedure. Keep the option card in its packaging until you are ready to install. Now turn the unit around so
you're facing the back panel. Remove the AD-8000 top cover. Remove the three retaining screws securing the
blank panel to the right of the power input connector, and remove the panel. Ground yourself by touching the
metal chassis of the AD-8000, and unpack the card.
The simplest way of making sure that the card locates in position in the slot is as follows:
1. Positioning the card directly above the edge connector, line up the recesses on the edge of the card's cover
plate with the edges of the cutout in the AD-8000 rear panel.
2. Keeping the card connector aimed at the socket, gently slide the card vertically downwards towards the
connector until it stops. The card will at this point probably be partially inserted into the edge connector.
3. Locate the power connector J20 that lies just behind the card slot. This holds a short ribbon cable that con-
nects to the adjacent power supply board.
4. With a finger, gently move the J20 connector slightly in the direction of the AD-8000 front panel so as to
clear the rear edge of the D/A card, while at the same time pressing the D/A card into place in its slot. It
should slot positively into place.
After insuring that the card's rear panel is correctly positioned, re-install the retaining screws and replace
the AD-8000 top panel.
You will notice that after the card has been installed, the top right LED in the routing matrix will illuminate
("ANALOG" row, "DESTINATION" column) to show that analog is available as a signal destination.

Installing the Video Sync module

The video sync module is a small optional card that fits over the system firmware EEPROM inside the front
of the unit. It provides the AD-8000 with the capability of synchronizing to video input and pulling the sample
rate up/down as required.
To install the video module, remove the top cover of the unit. Locate the system EEPROM near the front of
the unit. This will have a label carrying the software revision number. You will see two connectors, one on either
side of the EEPROM, that mate with the pins on the module.
The video sync module can be inserted either way round – one way is correct and the other is not! The cor-
rect orientation will result in the System EEPROM being covered by the module. Position the module over the
connectors so that this is the case. Ensure that the module is positioned correctly and that no pins are offset or
overhanging the connectors. Press the video module gently but firmly into place on the connectors.
Replace the cover as detailed above.
AD-8000 Operating Manual
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