Wanted: TRX Board for TS950SDX

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wd4ngb
Audio Head
Posts: 3
Joined: Fri Apr 18, 2014 6:31 am

Wanted: TRX Board for TS950SDX

Post by wd4ngb »

I am looking for a TRX X59 3680 00 for my 950SDX

The radio is in a shop for repair, and was told that on the TRX Board, it needed a couple of 2SA 1204 (y) and a DTC114TK.

I would like to buy a few of each of those, or a functional board if someone has one from a out of service 950SDX. I want to get my 950 back in the shack.

Help, I have fallen and can't get up.

A source for these, if no one here has them would be nice also

Bruce, WD4NGB

wb4ngb at qsl dot net

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Re: Wanted: TRX Board for TS950SDX

Post by Voodoo Guru »

Hi Bruce,

That is unusual for those components to fail. The most probable cause for issues on the TRX Unit is the resistor getting too hot and melting the solder on it due to its wattage rating being too small for the current going thru it.
Reference this link:

http://www.voodoo-labs.com/index/sdxmod ... trxmod.htm

We now usually graft an Axial 1/8w resister in place of the surface mount resister for self cooling proposes.

1 - TRX Axial Resistor.jpg
1 - TRX Axial Resistor.jpg (454.54 KiB) Viewed 1150 times
2 - TRX Axial Resistor.jpg
2 - TRX Axial Resistor.jpg (349.56 KiB) Viewed 1150 times
3 - TRX Axial Resistor.jpg
3 - TRX Axial Resistor.jpg (395.78 KiB) Viewed 1150 times

If the components are actually damaged and need replacement then you can find those here:

The 2SA1204-Y transistor crosses over to 2SA1204-F(Y) which is an obsolete part but is still available from Kenwood here:
https://www.kenwoodparts.com/parts/search.php

The DTC114TK transistor crosses over to DTC114TKA which is still available from Kenwood here:
https://www.kenwoodparts.com/parts/search.php

The DTC114TKA crosses to DTC114TKAT146 which is available at Mouser here:
https://www.mouser.com/ProductDetail/RO ... jEaw%3D%3D

We're pretty sure of these crosses, but double check to be sure.
Good Luck,
Voodoo Guru
From Deep in the IDD of the Sub-Harmonix Realm

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