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Made Easy Tool for DEFINITY Media Server Configurations
Issue 4, May 2002



System 75 Small-Cabinet to R8si (Blowback)

Remove control carrier A [75 small upgrade]

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Caution! When removing the cable adapters, be careful that none of the short pieces of shrink tubing come off the 4 corner pins of the pin-field block. Otherwise, when the new equipment is connected, -48 volts could short to ground.


Note: Before disconnecting each cable adapter, note its position.

  1. Remove the cable and AHF3 cable adapters from between the A and B carriers (see TDM connections for small R1V3 System 75). They will not be reused.

  2. Disconnect one end of the 8 ground straps (between the A and B carriers) from the A carrier (see Locations of grounding jumpers). These straps will be reconnected to the new A carrier.

  3. Slide the latch up, and disconnect the P1 (small 9-pin) connector and the P2 (large 37-pin) connector from the A carrier (see Location of P1 and P2 connectors on System 75 carrier). Move the cables into a position where they will not interfere with removing the carrier.

  4. Remove the fan trim plate by pulling straight off.

  5. Clean or replace the air filter (403326820) if necessary.

  6. In front of carrier, remove the 4 screws (top 2 first) holding the A carrier to the cabinet frame. Use a long-handle screwdriver or 5/16-inch socket with a 10-inch extension.


Caution! Cables and wiring harnesses can be damaged if they catch on the framework and if too much pressure is applied in removing the carrier.

  1. Slide the carrier forward 1 to 2 inches; then, from the back, be sure that no cables or wiring harnesses are caught on the cabinet/carrier framework.

  2. Remove the carrier by sliding it out the front of the cabinet.

TDM connections for small R1V3 System 75

Locations of grounding jumpers

Location of P1 and P2 connectors on System 75 carrier

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