Removing The Pcb; Changing The Eprom; Completing The Procedure - ABB 8235 Chloride Instruction Manual

A.3 Removing the PCB – Fig. A.3
A.4 Changing the EPROM – Fig. A.4
Extract IC1 using an approved tool
1
– see Caution in Section A.1.
IC5
IC2
IC3 IC1
Fig. A.4 Replacing the Software EPROM
Fig. A.3 Procedure to Remove the PCB
2 Fit the replacement IC – press home firmly.
3 Go to Section A.5 for reassembly instructions.
IC4
IC11
Remove the four screws attaching the PCB to
1
the assembly.
Note that there are washers between the PCB
cover and the PCB.
2 Withdraw the PCB and turn it over to
reveal the component side.
3
Locate and change the EPROM IC1 – see Fig. A.4.
A.5 Completing the Procedure
1) Fit the PCB using the reverse
procedure in Fig. A.3.
the washers are fitted between the
PCB cover and the PCB.
2) Close the microprocessor section
using the reverse procedure in
Fig. A.2.
3) Close and lock the hinged cover –
Fig. A.1.
4) The monitor may now be put into
service.
5) Check program parameters – see
Section 6.
6) Carry
calibration.
APPENDIX A
Important Note. Ensure that
out a routine 2-point
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