Question about JBL MR-17 Sirius-Ready AM/FM/CD Receiver Controller
Marine jbl stereo is freaking out. volume goes up on its own, mode and channel buttons "stuck". will play a CD but you can't go up or down to songs. pressed the reset button and it resets, but continuously scrolls through FM radio stations. Mostly the volume will be set at 15, then suddenly it goes to MAX and you have to turn off radio switch to get it to stop. seems like it is really a connector problem. only had the boat for 1 year, 3 months
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Posted on Jan 02, 2017
Initially, have you tried a full hard reset? The reset button is at the panel at the back of the faceplate, bottom left side. Of course doing so will also erase all presets and user settings & configurations.
Additionally, pls verify that the multiple contacts pins are clean, free of corrosion and makes a positive contact with its mate at the rear of the faceplate. If the unit is used in a salty environment, it may be necessary to manually scrape of whatever blue green build up develops between the connector pins and the plastic insulator. You can try using an old toothbrush and WD40.
Further to check are:
1. the red, yellow and black wire are tightly connected where they are supposed to be connected. If the unit is used onboard, it might be to your advantage to likewise check the grounding system;
2. one of the rear connector is for a remote, pls likewise check that none of the pins are shorting and no presence of any corrosion.
If problem persists, it may be necessary to seek the services of a qualified professional as this involves opening the unit up and tracing the circuitry of the logic/controller circuit.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on May 04, 2008
SOURCE: AM/FM radio on boat,
First thing i'd do here would be to investigate if the electromagnetic interference is coming in through the supply feed. I would bring another battery on board (Charged fully), one that isnt connected to the boats electrical system and see if the emi still afflicts reception. If it stops or reduces to a permissible level one can attack the problem with emi suppressors and filters. A good place to start would be the alternator, try suppressing the emi at source.
The second path the emi takes to pollute reception would be via air straight to the units antenna.
The solution sought here might not be a single remedy but a total of 3 or 4 tweaks, each leading to a percentage improvement. try shifting the antenna too, maybe shielding might contribute some.
Posted on May 27, 2008
I have a car stereo purchased from the US and I can’t pick up all radio stations in Europe/UK, what can I do?
If you have purchased a car stereo from the US you will find that it will not pick up many European radio stations. This is due to the fact that US radio frequency steps are different to here in Europe.
You may be able to set the tuner to European stations by following this procedure.
Press and hold down the SRC button to power down the unit completely.
While the unit is off press button 1 & 5 together, while momentarily pressing the SRC button.
If this does not work try the following proceedure;
Press and hold buttons 1 and 5 together, while momentarily pressing the reset button.
If this does not work then the unit is not designed to pick up European frequency steps.
Posted on Sep 16, 2008
Usually when you lose only AM it is an antenna issue. Check for a loose antenna plug on the back of the radio or connection to the antenna.
Posted on Aug 02, 2009
Hot Tub with working JBL MR4 was bought, moved to my house...wired up tub, lights all work fine buuuttt the JBL MR4 doesn't...power is to the 110 box under the radio, it has been re- connected according to the manuel and previous set up... the faceplate totally lights up in all possible configurations so you can't read the display...can read USA and countries on top, the CD area I can read and 2 sets of black increment bars areon each side of the faceplate display...only button I seem to get a response from is the power on/off as it lights up...as i turn the vol it blinks with each notch display on then off...I disconected faceplate and reset button , no effect...repowered(no battery seperate hookup as this a hot tub not a boat,red and yellow are wired together).????any ideas on whats wrong???? CD goes in and out???? email@example.com
Posted on Mar 21, 2011
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