Disconnected system for moving furniture.....when reconnected no sound whatever,,checked all speaker wires OK. rolling panel powers and cd,s rotate,everything powered alright but nothing from speakers.Are there any fuses inside the main componenent box?
Hi there, I realised that with my MX-J900, if clock has reset to '0.00' after being unplugged, it will initially show the demo mode, then once switched on it will work as normal, but once switched-off to stand-by it will not respond to power button if the clock wasn't set to the correct time. To fix this; simply unplug from power for a few minutes, plug-in, then switch-on at demo, set clock & unit should work as it should! Cheer, Stevie-Ray ;)
When you switch the unit on make sure that you hear two clicks, this will tell you whether the protection relay is working. Should you hear the two clicks this will indicate that the audio ic`s are working. There are fuses inside the main component box, four on the transformer. Let me know the outcome
Hi Guys I Have Just About take My Jvc mx-j900 totaly apart and i have only foun the three fuses on the transformer can anyone tell me where the rest are.
When i turn my player on it clicks a lot. i push play on the cd and it starts playing but no sound at all from the speakers on any source
can anyone help me??
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Hi! The fact that the LCD has power implies that the fault is in the Power Amp-Speaker stage. Check 1: Check that your speakers are connected to the amplifier output properly. check 2: If connection is proper check for power on/power off blips. If blips are heard the Power amp /speaker stage is ok . check 3: If power on/off blip is heard then you have to check the source stage i.e CD/radio etc Check 4: if blip is not heard. Disconnect the speaker and try with another. eliminate the case of a blown speaker by testing speaker on another system. check 5: if speaker and source are ok. Treoubleshoot the amplifier Power supply stage with the followinghttp://www.howtodothings.com/electronics/how-to-fix-the-fuse-on-your-guitar-amplifier check 5: if the power supply to power amp stage is ok troubleshoot the power amp stage with this guidehttp://www.howtodothings.com/electronics/how-to-fix-your-guitar-amplifier If you still face problems feel free to contact me
First you need to make sure that all the speaker wires are connected to the unit securly. next make sure that they are wired into the correct spots. then check and make sure that it is on the correct mode. please write back
Protect mode would indicate that the system is shutting down due to a fault in the output which drives the speakers.
You can check the speaker wiring, are there an loose or frayed wires? Any small "whiskers" or wire touching anything? Check the wire all the way to the speaker for damage, some pets love to chew wires!
Are you using the original speakers or added extra? The impedance of the speakers must be in the range shown on the back of the unit.
Have you perhaps had the volume up very high? This could result in speaker damage that could also cause this error. Try disconnecting the speakers & see if the unit powers up, if it does then put the speakers back one at a time to discover the faulty one.
If all this checks out OK then the output stage itself is probably faulty & that's a job for the repair shop.
Please update the question & let us know if the information given was useful to you - Good Luck!
Of course it will stop buzzing when you mute the speakers.
From the limited description, it could be anything from a power supply to loose wires in the system between the speaker leads and the motherboard.
Best bet is to take it in to a technician and get a pro's answer. If he wants to charge more than what it's worth to you, get a new one.
Ok for whatever reason breaks on the printed circuit board have occured. Expose the contact points of the rca ports. resoldering these spots on the pc board will do the trick. 'HINT' resolder all contacts, there should be 3 or 4.
As for the volume check for dirty residue below the surface of the switch face(s) and or increase tension spring found below switch face.
it must be some bad connections or loose wire. when you connect and disconnect the earphones, it is possible that it created a small electric reaction that slightly welded the wires, and thats how it worked for a while, but the only permanent solution is fixing those bad wires.