Spu Backplane - HP 340 Series Service Manual

Removal
1. Open the connector extractors and disconnect the two ribbon cables from the SPU
backplane board.
2. Slide the DIO-I slot assembly out of the SPU's card guide.
3. If one or both of the DIO-I ribbon cables needs to be replaced, disconnect the ribbon
cable(s) from the DIO-I backplane.
4. If the DIO-I backplane needs to be replaced, follow these procedures:
a. Remove the screws holding the DIO-I backplane to the DIO-I card guides (Figure
2-9.)
Figure 2-9. DIO-I Backplane Disassembly/Reassembly
b. Remove the DIO-I backplane.
c. To install the DIO-I backplane, reverse steps 4a and 4b above. Ensure the left and
right DIO-I card guides are properly positioned (Figure 2-9).
~nstallation
To install the DIO-I slot, reverse steps 1 through 5.
:SPU Backplane
IPreliminary Requirements
Turn OFF the SPU and remove these items in the order listed:
1. Power cord.
2. Video and interface cables.
:3. Case.
4. Video/graphics board.
5. DIO-I ribbon cables from SPU backplane.
6. RA:M boards.
Assembly Replacement
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