4 replacing electronics module or prom – Honeywell SMV 3000 User Manual

Page 118

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9.4

Replacing Electronics Module or PROM,

Continued

Procedure, continued

Table 28

Replacing Electronics Module or PROM, Continued

Step

Action

8

With component side of new PWA facing you, align notch and pin 1 of
PROM removed in Step 6 with notch and pin 1 in IC socket on new
PWA. Carefully plug PROM into socket. Go to Step 11.

Pin 1

Notch

Main PCB

ATTENTION If the new electronics module has the write protect

option, be sure to check that the write protect jumper is in the desired
position. See the Write protect option in Section 5.4 of this manual for
details.

9

Verify that 10-digit identification number on label under new PROM
matches PROM ID number stamped on meter body nameplate. If
PROM numbers don’t match, you must order a new PROM specifying
PROM number from meter body nameplate.

Continued on next page

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