AZDEN PCS-6000 EXPANDED RF REMOVE TOP AND BOTTOM COVERS. REMOVE 4 SCREWS HOLDING DISPLAY TO CHASSIS. REMOVE 4 SCREWS HOLDING PC BOARD TO CHASSIS. REMOVE 1 SCREW ABOVE MICROPHONE CONNECTOR. CAREFULLY REMOVE PC BOARD. LOCATE AND REMOVE DIODE D207. REASSEMBLE RADIO. 138-160 MHZ