It is deffinately an electrolytic. look for a radial type with a slightly "convex top" I forget exactly where it is, been a while since I worked on those. When an electrolytic is going bad, or is bad, one sign is the swelling on the top. they usually swell just before they short. Test with a good DVM on the continuity range. it should beep until the cap charges, reversing the leads will make it beep until it discharges. (usually on a value of 4.7uF or more) continous tone means it is shorted. compare time of charge/ discharge to a known good cap or of course use capacitance meter if you have one. look in the discriminator line from the receive through the tone circuit itself. Also seen same with just bad solder joints.
--- On Mon, 5/17/10, tec1122000 <t...@teccs.biz> wrote: From: tec1122000 <t...@teccs.biz> Subject: [Repeater-Builder] GE Rangr 150 - garbled audio when squelch tones are on To: Repeater-Builder@yahoogroups.com Date: Monday, May 17, 2010, 12:04 PM I own 4 GE Rangr 150s. 2 of the 40 watt and 2 of the 110 watt. They transmit and receive beautifully without the Call Guard tones turned on. The deviation is a little low and won't allow me to get full 4.75 kHz deviation, but the audio quality is perfect. When I turn on the Call Guard tone to use a repeater, there is a bunch of noise added to the voice audio. I am thinking that if I have 4 radios doing this, then someone else must have seen this problem before and hopefully has some answers. This radio doesn't have a separate tone board as some evidently do. The tones are created in the CPU and sent to the audio circuitry on the WALSH BIT lines from the CPU. Has anyone seen this before? I have adjusted the deviation pots (one for the PLL, one for the exciter) and still can't get the deviation up to spec. I am getting about 2.75kHz. I have the manual and have studied it thoroughly. My guess here is that I have a failing component such as a capacitor that is reducing my audio. Just wanted to see if anyone else has had this problem with these old radios.
