I use my radio in Guatemala with a 12V adapter and it has worked great for years. Now, I get nothing. I have tried it with the 120 cord as well. When I push the power button, nothing happens. Is there a fuse anywhere?
I replaced the protection diode, a 10v zener, with a 9v from my junk box. This did not fix the problem, but as least I have 6vdc going into the radio now. Looking further ... maybe an onboard regulator got fried. Still no source for a schematic.
I have one that I am repairing that has the same problem ... putting 12v on the 6v input shorts the protection diode to ground. I pulled the diode and found it to be shorted and currently sourcing a replacement.
Since I don't have a schematic, I am guessing at the part number ... it is a 1N4xxx something, I think ... hard to read it. I'm pretty sure this is the only problem.
If you are not an electronics tech, I don't recommend trying to replace the diode yourself. It requires a major disassembly of the radio.
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same problem here, but with my radio shack scanner. When I disconnect the cord, however, the low battery indicator symbol comes on for a bit so radio seems to be taking in juice. May try a better brand of battery or some rechargeables.
I have the exact same problem here in Europe with my perfectly with my Sony shortwave after 18 years. If I fiddle with the ac adaptor in the radio plug, it works for a while. I have replaced and soldered the yellow tip adaptor twice in 18 years and hopefully the problem is with the power plug and not the radio plug.
Any help is appreciated.
A multi adapter is a great choice, it is inexpensive and works for basically anything. You have a choice between ac or dc. The voltage increments go up in about 3 violt, mine goes to 16 volt. This should work perfectly for you. Please rate solution
If the radio does not work with headphone then the external jack for audio may have broken loose from it's soldered points. Simple re solder may make the repair. Beyond that it would have to be diagnosed by a technician.
Here is a general case solution that might work even if you don't have the manufacturer's expensive adapter if you have some tech skills. Check the input plug on the radio. If you are lucky it should have a symbol next to it with a dot within a circle. The dot gives the polarity of the center connector and the circle gives the polarity of the outer connector of the plug. If you are super lucky, you will have the correct adapter already in your parts bin. Otherwise, you can buy universal 12V power adapters online from all electronics and radio shack. They include just about every kind of plug option and also some feature to select polarity.You can try the various plugs and find the one that fits perfect & then set the correct polarity. The current is not so important as long as you meet or exceed the required capacity which is often not given. Both universal adapters can provide 1000 mA which should be more than adequate. There is always a chance to screw up any electronic part; I can attest to that, but I keep 2 or 3 universal 12V power bricks on hand and have used them for many tech items.
Home Depot recalled all of them for this reason. Great radio, just use reachable batteries instead of the charger stand. The stand and OEM battery is the problem.
I kept mine and use rechargeable's instead.