ETS-Lindgren 2090 Controller User Manual

Page 144

Appendix B: Maintenance

Model 2090 Multi-Device Controller

labels for orientation. Gently place each chip in its

d the pins inward to

lign them properly. Make sure that all pins are

socket until seated.

Repeat the procedure with the second ROM.

9. Carefully align the SBC in its socket and push down

firmly until seated. Re-install the holding screws if

provided.

NOTE: If the three “AAA” batteries in the Model 2090

have not been replaced in the past year, this would be a

good time to do so.

10. Slide the lid on from the back of the Model 2090 and

replace the six mounting screws.

NOTE: The four mounting screws on the lid may be

different than the two on the back.

socket and insure that all pins are properly positioned.

It may be necessary to slightly ben

properly aligned in their sockets and then use a firm

pressure to push the ROM into its

To configure the SBC for the flash ROM, move jumper

J2-D from the right (pins 2 and 3) to the left (pins 1 and

2) side of the bank. The jumpers should be arranged as

shown in configuration A as illustrated above.

NOTE: If you fail to make this change, the Model 2090

will operate normally, but will not be flash

upgradeable.

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Revision G– P# 399199