Triaxis analysis

Hi,

Since many years, I search informations about the TX4 board of triaxis V2.
I would like to update my V1 with the rectifier mod (lead 2 red).
Is somebody able to say wich is the value for this big white square resistor in Triaxis?:



Thanks for your help
Stef

Hi Stef,

on my Triaxis with TX4 Board there is no big white resistor.
But at the place you show on the photo, there is a place on the board which is labeled with R502.
This is splitted into two resistors with 10k and 2k7, 5Watt. The lesser Ohm value is attached to the point near to the rear of triaxis, the 10k is attached to the point showing to the front. Where the resistors are wired together, there is the white wire from your photo attached. Does this make sense ?

Kind regards

Sigi

Many thanks Sigi,

it is exactly this information I search.
I will finish design of my own TX4 board.

I was curious to see TX5 too, I haven't found pictures of it on the web.

Thank you again!

Stef

You are welcome.

I am glad I could help.

My work of equaliser analysis:
https://www.dropbox.com/s/s04jqgcw3sddblr/Triaxis_equaliser_control.pdf

On this pic of a triaxis with TX4 under board view:

They are many diodes (1N4148) adding to modding the switching logic optocoupler (for preset conf).
Picture have not enough resolution to be sure where these diodes are soldered.

Someone with better pictures?
Thanks

stephanovitch said:

My work of equaliser analysis:
https://www.dropbox.com/s/js1cqwt3ljrdlls/TX4D_board_Triaxis_.pdf

Click to expand...

It says the link is deactivated

Sorry,
new link:
https://www.dropbox.com/s/s04jqgcw3sddblr/Triaxis_equaliser_control.pdf

I think these 3 diodes are added and one derouted:




This mods is for new switching of LDR with lead 1 red (rectifier mod)

I have draw the diodes added/modded on the switching schematics:


The list of opto elements activated in each mods:


The schematic:
https://www.dropbox.com/s/2mmenrk4asdthxp/TX4D_switching_control.pdf