From: "Garth Conover" Subject: DX-375 Mute mod. Date: Thu, 17 Jan 2002 12:10:21 -0500 The chief listed drawback to (un-modified) DX-375's is that they mute excessively during tuning. Every time you touch any tuning control, they mute for at least a second. You have to wait a second or more to see if there is any signal on the frequency, and that gets old REAL quick. This mod will stop the annoying muting while tuning this Shortwave radio Remove the batteries and then remove the back cover by removing the 4 retaining screws. DO NOT remove the screw about an inch directly below the whip antenna base! It holds the whip on. There will be a certain amount of "fiddling" to get the back off due to the plastic section that the volume control is inserted thru and other annoying "binding" do-dads. Also, do not lose the tone switch plastic slide mechanism when the back is removed. When the back is removed the rear of the main pc board will be visible. Remove the 2 silver screws that secure this board. Unclip the lower part of the board from the plastic clips. It is not necessary to do this on the top side where the ferrite loopstick is. Carefully lift the lower part of the board up until you can look under it on the component side near the volume control. There are two wire jumpers about a half-inch long with black sleeving on them that are located on either side of a 9 pin SIP IC package (one of the audio amps).! They are parallel to the SIP package and run along each side of the IC. These are the mute lines to each SIP audio IC. Carefully cut both of them and you're done. Now put the thing back together and you will find the tuning much faster and easier. Don't forget to replace the silver screws on the main PC board and the tone switch slide mechanism. 73 Garth N2BMP@MSN.COM