Installing boards in an early pdr200 unit, Removing circuit boards, Installing boards in an early pdr 200 unit – Grass Valley MPEG Upgrade User Manual

Page 28: Installing boards in an early pdr200 unit

MPEG Board Upgrade Installation

Installing Boards in an Early PDR200 Unit

If you have an early PDR200 (serial number B029999 or below), you can install
MPEG boards by following this procedure. It may be necessary to remove some
or all of the boards in slots J5 through J15 in order to follow the recommendations
for MPEG installation. In doing so, you may lose some slots otherwise used for
video I/O boards. To reinstall EDR and Fibre channel boards, follow the slot order
shown in Table 3 on page 5. Table 3 also shows where the MPEG boards must go.

For further guidance on board placement, refer to Table 7 on page 34. Follow the
instructions under “Selecting a Board Location” on page 36. Also, it will be
helpful to make a copy of Table 8 on page 35 to chart the placement of boards in
their proper slots.

NOTE: If you decide to keep the chassis in the rack during the installation, it
is a good idea to loosen any screws that need to be removed from the back of
the Profile unit before sliding it forward on the racks.

Removing Circuit Boards

Use the following procedure to remove one or more circuit boards—as many as
necessary—from the motherboard, in order to make room installing MPEG
boards:

1. Remove all cables connected to the rear of the Profile unit. If you have not

done so already, label each cable before removing it and draw a simple
diagram to make it easier to reconnect the cables later. Remove any cable tie
wraps, if necessary.

2. Remove the three-slotted PCI Interconnect board and remove all cables

connected to Profile boards, such as SCSI, Sharcnet, or audio clock cables
(look at Figure 7 on page 23 if you need help identifying the Sharcnet and
audio clock cables). Label each cable before removing it and draw a simple
diagram to make it easier to reconnect the cables later.

CAUTION: Be certain to label the SCSI cables before removing them so that
you can reconnect them properly. If the A and C SCSI cables are reversed,
the file system will be corrupted.