TM231A.1 TO OPEN THE KENWOOD TM-231A FOR TRANSMIT ON ALL RECEIVE FREQUENCIES: REMOVE BOTH TOP AND BOTTOM COVERS OF THE RIG. REMOVE FRONT PANEL AFTER PULLING KNOBS AND NUTS ON MIKE JACK AND FREQ CONTROL. THEN REMOVE THE 3 SCREWS HOLDING THE CIRCUIT BOARD AND PULL THE BOARD STRAIGHT OFF THE FRONT OF THE RIG. CUT OR REMOVE THE GREEN JUMPER NEAR THE VFO PUSHBUTTON AND INSTALL DIODE AT D-209 (NEAR THE TONE/T.ALT BUTTON) ON BACK SIDE OF BOARD. REASSEMBLE UNIT AND RESET MICROPROCESSOR PER INSTRUCTIONS IN OPERATION MANUAL. DO NOT USE THE RIG TO TRANSMIT ON FREQ FOR WHICH YOU ARE NOT LICENSED OR THE RIG IS NOT TYPE ACCEPTED. IF YOU ABUSE YOUR PRIVILAGES, WE WILL ALL END UP LOSING THEM. WA5VRL