The simplest way to trouble shoot is to swap the speaker connections at the back of the amplifier. If the problem follows the speaker than a connection, possibly internal to the speaker fails as the speaker warms up(voice coil).
If this swap indicates that the amplifier is the problem swap the channel inputs to confirm that it is internal to the amplifier. Also try a different source to confirm it is not the output of the source.
If not, than the amplifier would appear to have a problem. This would most likely require a qualified technician to repair.
Tthese amps are robust and you may have to choose an alternative speaker pair(example sub-room or speaker set 2) to maintain the set up you have. Also a internally shorted speaker may have the impedance low forcing an output protection feature.
Not having the ability to look at it on the bench, more than likely your DSP chip is bad. If you have a local repair house that is willing to confirm that is the problem without charging you an arm and a leg, that's your best bet. It is an expensive repair, anywhere between 300 to 500. At that point, I would say to replace the unit. Sorry for the bad news, but that's my "best guess" The only other thing to check would be your "Audio input Settings" Make sure it's either on "Auto" or whichever type you are using. "Digital Coaxial", "Optical", or "Analog" (RCA) hope this helps! If you have any further questions, just post a reply and I can help further. Best of luck!
Marantz SR 5200/6200 lost audio or crackling on left or right channel except in mode s-direct is now fixed !The root cause is a defective inegrated circuit on DSP board (the one with digital inputs). To fix it change the chip CS4391 by a new one or better by the improved version CS4392. On my device a capacitor was cut close to this IC : replace one 1uF after changing the IC. For any question search me with my callsing "F5RCT"; i have a spare IC for the one who is able to change it !I'm amateur radio and engineer
Hi
Martynas ZCS4228A on DSP board can be overdriven on the inputsCS4228A on DSP board can have shorted loads on the outputCheck also the board (might be burnt also)Here is block diagram for you:Check components around it thoroughly.Let us know how you make it out.
How do you know it is getting power? Are you comfortable with voltage measurments? Most newer systems like this have a momentary switch that controls a relay which in turn cycles the power for the switching power supply. I would either suspect a bad contact in that relay (corrosion due to lack of use) or a possible blow fuse. Can't really say for sure without seeing it. Please don't attempt if you are not comfortable with this type of work. Good Luck!
I had a similar problem, now to be honest there is quite a couple of things that could be faulty. I dont know which cable you are using between the source and the amp, but i am using RCA to mini jack.
I had the same problem that my tuner on amp played through all channels dvd as well, but as soon as i hook up the amp to my computer only some of the chanels played.
I found out that there is actually mono and stereo versions of of that cable thus, if you use a external source and channel it trough the amp with a mono cable, only some channels will be playing.
If you use a stereo cable both channels will work.
The other problem could just be a simple setting on the amp itself.
Usually you can set the number of channels you want the amp to be set on. It is very simple, locate this function an try every setting untill you hear that all channels are working.
It could also be an "ic" on the heatsink of the amp which overheated, if you open up the amp you will be able to see it instantly. This will explain the slight sound you manage to hear.
My advice is to try the first and second sollution and as a last resort send it to a repair shop or if you still have warrenty send it back. I doubt that it is a hardware problem on the amp itself.
You could possibly have a faulty set of RCA cables. Happens all to often. Change your RCA cables (Red,White,Yellow). And make sure they are inserted good. If problem still presists. you could have a short in your inputs on either you dvd player or your t.v.
I also have the same fault, The static noise is coming out
of ic720 [ cs4391 or cs4392 ]on digi pcb which is D-A converter
this ic maybe faulty, i have ordered a replacement ic and will
post here if solves problem
chances are you have the volume too loud and the speaker wires are crossed.
all speaker wires need to be with the positive on the right and negative on the left if you have them anywhichway than it will work on low volume and not a very good sound.
look closely at the wires and they should have a red or so color on one side or the wire jacket itself will have a round side and a flat side
sounds like you might need to open it up and check the speaker wires that you plug your speakers up to it might be lose or something else like that cause it happened to me before and that was it.
Check for a stuck/jammed switch, press each switch if one doesn't make a normal click sound or it doesn't move at all that's your problem.
If that's not it check the owners manual for how to reset the receiver (not all manuals will tell you how to reset it) Another way to reset it is to short the memory cap, but that is better left to a tech.
please repeat your setting first- and then disconnect all speaker out. connect your speaker one by one until you find the bad one and change it-you can also apply contact cleaner spray over volume control and move it many times-please do not forget yo unplug headphone jack first.
please repeat your setting first- and then connect your speaker one by one until you find the bad one(after every connection you must test)-when you find the bad one change its cable first then change speaker itself.-if all above failed you must contact service center near you.
please remove all speaker from receiver-volume down and test if the receiver shut down it needs to fix in service center-if not insert speaker one by one until you find the bad one-change its cable first and then change speaker itself.
Check components around it thoroughly.Let us know how you make it out.
