Missing components on LG A/C boards for CN-Remo connector – Need help identifying parts

[Smandurlo]

Hello everyone,
I'm working with LG A/C boards that have the CN-Remo connector unsoldered (they are a bit old), and I noticed that they’re also missing a resistor, a diode, and a capacitor between the connector and the data line to the A/C unit. It seems that this layout might be the same across similar LG boards, so I’m hoping someone could check theirs and help me identify the missing components.

Here’s what I’ve gathered so far:

Resistor: 12k Ohm
Diode: Likely a Small Signal Fast Switching Diode (TH, maybe DO-35)
Capacitor: Unknown type and value

If anyone has information on the specific capacitor value and any additional details about these components, I’d be very grateful for your help. Thank you!

[PVi1]

Hi @Smandurlo
here are photos of those boards. One is without cnremo and the other is from s12et.nsj with cnremo embedded.
the question is if there isn’t missing code in the eeprom, too.
https://share.icloud.com/photos/083Q5lFE1z2m-IWrmDbWEikww

EDIT: In my case the board without cnremo has 6 pin wifi(cnlink) port instead of 8 pin, too.

[Smandurlo]

Hi @PVi1 thank you very much for your pics! Something missing in the eeprom is a possibility, I hope it won't be the case :-)