HP-65 1603S03518 in search of advice

[albertofenini]

Thanks Tony,

we followed the suggestion and this time we ended with a working board
If someone is interested in seeing the process, there are some pictures here :
HP-65 1603S03518

We haven't rebuild the coupler because it appears solid, and since the unit
reads and writes we didn't want to molest it more than what was necessary

However, like almost all the units we repaired, after the first reading the two
o-rings tent to separate, any idea on how to glue them together ? with glue would
work better ?

thanks for help and take care !