NEC nd-20292 manual ETI Number EMK-016

ETI NUMBER: EMK-016

4.PROCEDURE

4.1Loosen the cross head cover retaining screw located at the rear of the housing (See Figure 1).

4.2Remove the RAA-E Unit cover by applying inward pressure to the lower half while at the same time pulling back on the upper half.

4.3Remove the HIC-E PCB by lifting it off of the RAC-E Unit.

4.4Using the chip extraction/insertion tool, remove the installed EPROM (22) from its socket (Refer to Figure 2). Follow the IC extractor manufacturer’s recommended procedure.

4.5Using the same tool as in step 4.4, and following the IC insertion tool manufacturer’s recommended procedure, insert the supplied EPROM into the IC chip socket. Observe IC polarity and ensure that the IC pins are not bent and that all pins are properly inserted in the IC socket (Refer to Figure 2).

4.6Using the revision A label provided, add the A revision after the number on the RAC-E PCB (See Figure 2).

4.7Use the revision 2A label and change the revision level on the outside of the bottom half of the RAA-E Unit (See Figure 3).

4.8Set SW5 on the HIC-E Unit to the Low setting.

4.9Reassemble the upper and lower housing halves of the RAA-E Unit.

4.10Test the unit for proper operation. This can be done with either the “COMLINK” (V2.0) or “DATASAVE” (V1.00) Software. Refer to the Electra Markll Installation Service Manual, Chapter 9, for programminc instructions.

Pull Cover Back and Up

Loosen Cross Head Retaming Screw

Figure 1 - Removing the RAA-E Unit Cover

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