Question about Onkyo TX-DS575 Receiver

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Corroded transisters on power supply to Marantz Audio Receiver

This has been in storage for a number of years. About Half the board has corrosion on it from liquid that was on it.

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There are some liquids that can remove the dust and corrosion, buy one of this and use it, the use a lubricant that avoid shorts.

u need to clean it very well before use it, otherwise u can damage the board and then u need to replace it.

Good Luck!!

Posted on Jan 25, 2009

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1 Answer

How do i change a power supply


A hi-fi receiver typically does not have a power supply that you can simply remove the broken one and plug the new one in. They are not designed like desktop computers. Try to locate and fix the broken component first.

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CS4228A burns after replacment


Hi

Martynas Z

CS4228A on DSP board can be overdriven on the inputs

CS4228A on DSP board can have shorted loads on the output


Check also the board (might be burnt also)

Here is block diagram for you:


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Check components around it thoroughly.


Let us know how you make it out.

Sep 28, 2012 | Marantz SR-5200 Receiver

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Have you tried plugging it into a different power point in your house?
If that doesn't make it stay on it is most likely a power supply issue with the receiver. More often than not it is cheaper to replace a receiver with a broken power supply than to pay someone to fix it.

Jun 17, 2010 | Marantz SR7500

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My marantz SR 7400 suddenly shuts down or goes into protect mode shows code CKPWR5


Most likely you have a speaker short, you need to check the ohms on each speaker disconnected from receiver if they are 8 ohms they should be close to that on the meter no more than a 1 and half ohm varience to what the speaker ohms says on the back. If they are ok you need to disconnect speaker wire from receiver and check for a short in the wire by connecting ohm meter leads to ends of the speaker wire you should get no reading if the wire is good. If this is all good you have a bad output transister in your receiver, but i dout this is the case because these transisters normally short to ground and blow a fuse. Hope you solve your problem good luck

May 24, 2010 | Marantz SR-7400 Receiver

1 Answer

Had not used my system for a year or so, Tried to turn it on, nothing. I know it is getting power, any help ? thank you !


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!

Dec 13, 2009 | Marantz SR-5200 Receiver

1 Answer

Please give me an information about Marantz model 3300 parts, as transister SPS1928 exchage to new type one.


you can go to either the N.T.E. web-site and cross reference this part or M.C.M Electronics and they can get them for you.

Sep 13, 2009 | Marantz SR-580 Receiver

1 Answer

Marantz SR 7200 Receiver


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. kstahl65@att.net

Dec 26, 2007 | Marantz SR-7200 Receiver

1 Answer

Marantz receiver


You have a worn power switch. After 30 years of turning a powerful receiver on and off, the contacts in the power switch become pitted and corroded, and just plain dirty - this is exacerbated in smoking environments. As the resistance in the contacts increases, it takes more "juice" to bridge the contacts, and this takes the form of hissing and sputtering. The best solution is to replace the power switch. These can usually be found on eBay for between $10 to $25 - just search for "Marantz power switch". You'll probably need to disassemble most of the front end of your receiver to get at the switch, and you'll need some soldering experience and tools to remove old and install the new. Once you do the job, however, it should last the rest of the life of the unit.

Oct 19, 2007 | Audio Players & Recorders

1 Answer

What does this Error Message mean?


hello AuburnCE, After 4 years of joy my Marantz SR8200 receiver also shows this message from time to time - after 1h of operation or so. Then it is hanging (like a PC ;o). Taking it of from the electricity network for a moment resolves the problem until the next POW 05 hang usually a fiew days later. I brought the receiver to an authorized Marantz maintenance and repair center twice now and they were not able to reproduce the error. They said this has directly or indirectly to do with the power supply unit. They also called marantz. For me it appears that this is not an internal receiver problem IN MY CASE. I think I there might be a relationship to zapping on my Topfield SAT receiver via power supply network as the connection is optical. Or my dimmerunit for the light. Unfortunately I do not have a separate electric circuit for Audio/Video and all other electrical devices. and dimmer units are well known to cause problems in the power supply chain - e.g. like noise in your audio package. Please note: the experts told me: Check POW 05 can have other (receiver internal) causes also. Above is just my suspicion 8as a non-expert) for my case . Regards, Fred

May 29, 2007 | Marantz ZR6001SP

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