The TS-940S Diode removal info is available in about a dozen places around the web, but no elaboration on which PC board, etc., so here are the details. Perform this at your own risk. Right and left assume you are facing the front of the unit:
- Unplug all external radio connections.
- Remove top and bottom covers.
- Remove 4 screws holding the faceplate to the chassis on the right and left side of the faceplate. Gently pull the face away from the chassis about an inch for working room, but don't unplug anything.
- With unit sitting upright, locate Digital Unit B. It is on the right front corner right behind the faceplate. If you have a voice synthesizer unit the voice unit is mounted to the top of it. If not, there are 4 raised mounting holes on top to hold the voice synthesizer unit. Remove the 4 screws from the VS-1 board, and fold it out of your way to the left.
- Remove the 5 screws (3 on left, 2 on right) from the Digital Unit B shielding.
- There is no need to disconnect any connectors. Tip the Digital Unit B shielding case up from the right side. Use something to hold it up for you.
- Now simply look on the lower right hand corner of the board. Locate IC-109. Now look up and to the left and you will find D-130. Snip one lead of D-130.
- That's it. To test, attach a dummy load and transmit out of band. Now Go back through the steps and put the unit back together.
*******Original text below*********
Locate IC number 109.
Now find diode 130 and cut it for all-band transmit.
If you want just MARS coverage, locate IC 111 and 112, and snip diode 135 beside it.