RCA CTC203AX Chassis Advice

[Console User]

I have looked up the readings online for the different parameters that the Service Manual shows for this particular set. I was just wondering if anyone has any advice where the following values need to be set at for the following Parameters when going into the Service Menu and setting it at V76. I am referring to the following Parameters P13, 14, 15, 16. 17, & 18. This is the Drive and Bias Settings.

I wrote down what it was previously set at so I did not loose the data that it was set at.

It currently is set at the following P13-15 is set at V5

P16-19

P17-27

P18-32 When I follow the correct steps when in the Service Menu to store the changed entries they do not stay entered when the set is powered off. It retroverts back to the listing shown above.

I wonder about the eeprom failing or being corrupt. As I stated this is the RCA CTC 203AX Chassis. I am wondering if the eeprom for the RCA CTC203AX1 would interchange in this set?

Thanks.