How to fix protect eo3 in sony radio - Sony Car Audio & Video

Something short circuit inside the circuit board of your set. Short circuit protection energized. Contact any service technician to get it serviced. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Re: error code E03 on washing machine
Eo3 water not draining,check for kinked drain hose,check that drain filter is clean

I need the model number to be sure, but, based on when you get it in your cycle, I'd check the drain pump and clean out the trap.

Check the charge corona assembly/wire.

Unplug machine for 2 hours to reset the board electronics and re-plugin to load fresh computer code onto board.

if they are the same radio, you can definitely swap cd mechs.

I have had the same problem with a different model JVC. I haven't been able to fix it yet, but there were a bunch of people on a different forum that were able to fix that error code quite simply. With a tape in the machine, flip the lever to eject the tape, then as soon as you hear the motor start to whir, quickly close the door.
It didn't help me, but like I said, several people reported that that action fixed the EO3 error.

I cleaned the heads with isoprophl alcohol on a q- tip and it started working again with no problems.

Hi, Off hand, I believe there is nothing wrong with the setup, maybe just not 100% compatible. It's just that the Sony Amp's protection is doing its job (just too good) and the stock radio is likewise doing it's job (but not too good). Just maybe, at poweron, the stock radio sends out a small burst output (maybe capacitor discharge) that we normally hear as a slight thump in the speakers which was when no Sony amp, ok. However, when you have added the amp, you also amplified the thump, which unfortunately the Sony protection reacts to. You can off course let it be since you have figured out a way to make it work or you can try and install a delay on for the power amp or separate it's power on from the stock stereo. The idea is to turn on the stereo with the Sony off and after a second or less, a manual switch or a delay activated switch will turn on the Sony. The idea is to switch on the Sony after the thump has finished. Good luck and hopes this gives you an idea. Pls post back how things turn up. Kind regards.

Power protect tends to mean the main power amp chip has "blown" and needs to be replaced. It only costs about 20 dollars (10GBP). If you are handy with a soldering iron it is easy to do (after you get the thing to bits !) It is the big black thing on the big heatsink inside. The Sony part number is STK442 - 130. Seems a waste to throw the whole thing away for the sake of 10 pounds !. Hope this helps. Nik Howell ([email protected])