Topic: Electrical Schematics of ISS

[F4AAG]

Hello every one,
I have buy the last month a Wireless ISS on Ebay, when I connect a SHT21 module not information (Temp and Humid) is transmit to the VP2 display.
I have test whith a multimeter the RJ connector and the power supply is missing, it's not a good sign.
In order to advance I seek the electrical schematic of the ISS, do you know to find that ?

Thanks
My ISS module

[azchrisf]

The schematic is not available, and noone has attempted to reverse diagram it.
When you say SHT21, are you using a Davis Temp/Hum sensor or something you rigged up yourself?
Have you configured the IIS jumpers correctly? Did you put a battery in it for starts? The battery should be enough to get it transmitting.

It's hard to follow what your saying/asking since you are ESL.

If it's not a solar model you will need a 5VDC Power Adapter with a 3.5mm barrel.
https://www.amazon.com/Adapter-Power-Supply-3-5mm-Transformer/dp/B00JRNQUM8/ref=sr_1_4?dchild=1&keywords=5v+dc+power+supply+3.5mm&qid=1628226092&s=electronics&sr=1-4

and I honestly think you need to start with the Owners Manual on how to setup the station.
https://pim-resources.coleparmer.com/instruction-manual/86403-56-57-58installman.pdf

[azchrisf]

Thanks for repeating everything I said...

[F4AAG]

The model of the ISS is the 6322C (Wireless), I think it's possible to use an external power supply on the bord because a little jack connector is available.
So, the wind sensor (speed and direction) is fully functionnal. It is possible that after a thunderstorm the diodes placed just near the connector have been released. 

[F4AAG]

Hi,
probabely my outdoor temperature port of the ISS is faulty. I can measure the power supply (+3v) on pin 4 and 5. Someone can he sense on his operationnal ISS ?

Thanks