Specifications

DVE Board
Before proceeding, ensure that you have a Twin Channel DVE assembly,
P/N 9400-0656, a Super Charger sub-board assembly, P/N 9400-0762,
and a new boot PROM, P/N 8700-5078-02.
This procedure is for 8150s containing Switcher board assemblies at or
above Revision 2.P, which began shipping in March 1996. If the revision
sticker on the component side of the board near the edge connector
shows Revision 2.O or below, you should contact Accom Customer
Service about the 8150 Upgrade Kit.
WARNING: Removing the Switcher board
disconnects the RAM battery backup. Save all
effects, timelines, personality files, and
engineering setups to disk before extracting the
board.
STEP 1: Power down the 8150 Signal Chassis. Remove the integral
front cover/air filter to access the 8150 Switcher board. Use
the Accom supplied tool to extract the Switcher board from
the chassis and lay it on a clean, static free, grounded work
surface.
STEP 2: Locate the Switcher Processor CPU IC (68EC030) at location
UV17 on the Switcher board assembly. Using a small flat
blade screwdriver, carefully remove this IC from its socket.
STEP 3:STEP 3: Install this IC at location U4 on the "T" shaped Super Charger
sub-board assembly, shown in Figure 3-7, on the following
page. Take care to align the dot in the upper left corner of the
IC (pin 1) with the beveled edge of the silkscreen surrounding
the socket at U4.
STEP 4: Install the Super Charger sub-board on the main Switcher
board by inserting the pins at location U1 on the Super
Charger sub-board into the now empty socket at location
UV17 on the Switcher board.
STEP 5: Secure the Super Charger sub-board to the two standoffs near
the edge connectors with the Phillips head screws provided.
STEP 6: Reinstall the Switcher board in its normal slot on the chassis
(just above the power supply tray).
8150 Technical Guide Option Installation
9100-0212-04 - May 2000
Option Installation
3-11