Hopefully someone can make use of this information. I found that OPT 11 was involved by using 01 at that address. I also found that using 01 addresses before the serial number would activate OPT10. I did not get wise to the Fx Codes until Joe pointed them out to me.?
No worries about the flux, there is none left in the area. I used lots of UltraSolve to clean the past flux I Utilize. This particular flux is supposed to be safe if left, but I clean it anyways. ?
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On Feb 21, 2022, at 10:20 AM, Lothar@... wrote:
?The systematic is the same on pretty much all HP 8752/53/19/20/22 analyzers, you find the serial number and the 3 Fx codes are setting the options!
one word of caution though on the 8753E/ES CPU board, when removing and resoldering the SMT eeprom
?you need to clean up all flux residue throughly or you can get issues?
