20 Most Recent Marantz SR-7200 Receiver - Page 3 Questions & Answers

The most common problem found on FixYa for Audio Video Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Check for a burn resistor

If you don't use the remote control is it okay? If so, tear apart your remote control, use a Q-tip to clean all the lines in the circuit board where the rubber contacts touch. Then make sure that the rubber buttons don't have any 'gunk' on them that are making them stick. Clean the rubber pad with a qtip with dishsoap. Dry well, put back together and see if she works. Report back on your success. Good luck.

It is likely that the PA stage has developed an offset voltage in the output stage. The faulty amplifier channel can be found by progressively disconnecting the collectors of the of the power transistors until the protection fault disappears. Once the faulty channel is found the the cause of the offset has to be traced to the faulty transistor or resistor. Don't forget that if you can smell smoke or burning then there are likely to be components(esp transistors) that have been damaged by the fault.
I had a Luxman unit that destroyed 5 transistors in the output stage that was due to an open .5W resistor in the driver stage.
Good luck.

if your hooking up a phono input lead to a digital input lead it won't work analog and digital totally different setup. when you connect the leads up it just kills the input amp so there is no noise.

most likely the audio pre amp & volume control chip

Try plugging a video rca cable into the "monitor" on the back of the mixer (second down or something like that) and then to your tv. This pumps the osd signal to the tv where you can manipulate the menu options.

Think this analogy:
remote = keyboard
receiver = computer
tv = monitor

You need a connection ultimately to the tv for the osd to work.

I had the same problem on my 7200 until I realized that the display comes up on the television screen. I carefully followed the set up required from the manual. I got the Manual online at Marantz.com. I have a cable hook up so I connected the video cable out from the box to the Video in source on the 7200 and monitor out to my Television. I then pressed the Amp button to get the remote to Amp mode. I then pressed the OK button that is in the center of the four direction buttons and the menu displayed itself on the screen . I hope this helps. ercble

I scratched my head over this for an hour. The manual says you can access the OSD from the unit, but I see no way to do this. From the remote, you have to select the "AMP" setting at the top of the input list. Then hit the OSD button. Assuming your monitor is set up correctly, this will bring up the On Screen Display. Then hit the "Menu" button also on the remote, and you can make your adjustments. Good luck!

This is an indication of some bad solder connections on one of the boards. It could be the power supply board, amp board, or the digital board. I would like to be more specific, but this is not a common problem with those symptoms. Bad solder connection are a common problem and can cause many different unusual symptoms. Unless you have excellent soldering skills, it would be best to let a service center repair this for you. This is a very good receiver and is well worth getting fixed. If you have excellent soldering skills and are willing to take a chance on fixing it yourself you could save yourself some money, but be aware that if you make even one mistake while soldering, you could easily cause much more damage than you started with. Some of the components that may need to be resoldered are surface mounted IC's that are very difficult to resolder and if you have never done this before it is not a good idea to start learning how to solder on such a nice receiver.

Let me know if you need any further help.

Dave

Press AMP then OK on your remote. If the menue does not appear press 9 on the remote. You must have your monitor connected through composit Monitor Out or S-VHS.
Also check your multiroom settings. Maybe your OSD signal is diverted through to other room. I do not have SR-7200 any more, unfortunately.

I can see by the setup of this device, it can be confusing. So let's make sure you are setting the device to the correct "A" speaker outputs. These would all be on the rear panel, on the right side of the receiver. Is this correctly setup?

Each input re[resents a zone, not a device. If your are lookin to seup multizones, each output controls one zone, ie - 1 = living room, 2 = outside, 3 = garage, 4 = pool room. If you are using a multidevice unit, the inputs must all go to one connector, input 1 = stereo, 2 = tv, 3 = xbox, 4 = pa.

Let me know if this make sense. If you have the make of the unit I will be more precise for you. I install these everyday, so this is easy.

DSP (Digital Signal Processing) Board is probably defective or has Poor solder Connection on one of the Ic's on that board. Board cannot be Obtained from Marantz. Must be troubleshot at component Level and requires a very knowledgable tech to repair it. I have done a few of these in the past and usually charge $50 to Evaluate and Give estimate. [email protected]

Verify that the digital output is enabled. This is a switchable output. A brown-out or other power isseu may have shut it down.
Get back to us if that is not the case.
Dan

This is the problem with computerized stereo's. The old analog stuff we could fix forever, but many of these digital problems, only the maker has the tools to repair. Feel fortunate that yours will even offer you support, even though expensive.
Good luck.

Chances are if The Receiver only has sound in Stereo Direct Mode and all surround modes and Sub out are Inop the DSP (Digital Signal Processing) Card is most likey defective. These boards are not available from marantz (D&M Holdings) and must be Component level repaired which usually is not cheap. If Only the Sub out is not working check setup to be sure sub woofer is set for on. Also If On Screen setup menu does not appear on video monitor Unit may need to be Reset manually which entails discharging a Capaitor on main P.C.B Contact [email protected] for details

The video switching on your receiver is bad. This is a sore spot in an otherwise excellent unit. IFfit is out of it's 3 year warr. the repair will be prohibitive so I suggest getting a video switcher and use it instead. Some of them can be programmed to work with the Marantz remote so you don't have to switch with 2 remotes.