User manual

Repair and Replacement Procedures
ProMaster 2500 User Manual 7-37
10. Test the module by running a device-related operation using the
module.
Replacing the
Programming Block
on a PLCC Module
After a period of time, the protective coating on the programming block
(see Figure 7-28) may wear to the point that you begin to see a higher
number of device-related errors. If you have a second module of the same
pin count, you can confirm that wear is the source of these problems by
programming the same type of device on the second module and
comparing the yields.
CAUTION: To avoid possible damage to the system components, this
procedure should be performed only by a qualified service
technician.