How many amps is my RCA Sta 3850 am/fm stereo receiver and where would I find a fuse for it also what exactly could be making the fuse blow out?

SOURCE: My RCA STA-3850 receiver will not turn on,...

This could be anything but I would guess you probably have a short in the system.If you could give me more information I may be able to help you better.

hardrocko

SOURCE: RCA STA-3900 standby light on will not turn on

POWER SUPPLY BLOWN FUSE CAUSED FOR A BLOWN OUTPUT TRANSISTOR , DO YOU HAVE THE NUMBER OF THOSE TRANSISTORS??

SOURCE: I have a Optimus STA-3750 am/fm stereo receiver

I have the same receiver, but have been unable to program it with my Universal Code. I do not have the original remote. Did you find a code that controlled it? I found one website that had the owners manual online, maybe that would help: http://support.radioshack.com/support_audio/doc58/58124.htm

SOURCE: Realistic (Radio Shack) model STA-430 AM/FM Stereo

If the receiver is a new one (a couple of years) I suggest you don't replace the balance potentiometer. It's a potentiometer with rare use so the inner carbon film can't be destroyed. I suggest you to open the case and use a contact cleaner spray (clear, without oil) and spray direct at the potentiometer. Turn it all the way from left to right many times. When it will come dry you will see the diference. As far as the suggestion for clear (without oil) contact cleaner spray, I insist on that because the lubricating oil will cause a trap for the dust and will ask for cleaning again and again. Also for potentiometers with rare use there is no need for lubricating oil.

I think that this solution is much easier than chanching a potentiometer, since the device is not too old.

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SOURCE: JVC RX 505v stereo receiver

The likely cause of this is a dead short in the power supply. I don't receal the specifics of this unit, but there should be a set of four(4) diodes or a single bridge rectifier in the main power supply area. Check this/these for a direct short using a diode checker. Other than that, the output transistors being shorted can cause hte same symptom. Without seeing the actual unit, I can not tell for sure. If you know how, check the output transistors as well. Report your results here.

Dan