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Just bought a nice looking galaxy dx44 but will not power on, is there a fuse or maybe a resistor that got blown from hooking up the power backwards?

Checked solder connections with a ohm meter but can't find a problem. Noticed the external power plug has only 2 terminals not sure if that is correct. Getting power to the 1969 final?

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If power was reversed, there is a 1N4007, 1N4003, rectifiers, 2 1000 microfarad 25 WVDC capacitors, a filter choke and a common mode noise filter that are likely to have taken the brunt of it. The choke likely burned out.

2 power leads is all it needs- one positive, one negative/ground.

It should have a 2SC1969 final C1969 should be the same.

Posted on Feb 08, 2012

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SOURCE: Just want to know where to set all the bottoms on

With out a frequency counter to tell you what freq you are transmitting on there is another way.

Turn to channel 19. mess with the switches untill you hear truckers on the highway. then you have got it.

Otherwise pick up a frequency counter on ebay.

Posted on Oct 17, 2009

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When you cant get your radio turned on. All it does is blow the fuse imeadiatlly hooking it to power. Most likely it is the (reverse polarity diode). The quick fix is to locate your diode? This diode usually is back behind a coil wound transformer on your board inside the radio and in the general area of where the possitive ans negative plug wires solder to the board! Usually it is black with a silver band around one end. If you clip it on one end or remove it this will restore your radios power. CAUTION:: When doing this ALWAYS use a dual fuse power cord . This will prevent this from happening again by blowing the fuse first. Doing this procedure will remove your thermal protection to the radio thus making it wide open to being fried for good if it ever gets hooked up backwards again. This is my reasoning for the dual fused power cord. Good luck!

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