Question about Marantz SR8001

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Hi there, we have a marantz 8100 receiver - sent in to repair and the technician advised cct board blown - potentially due to faulty speakers. Now looking to try and repair but unsure where we could pick up a second hand cct board from - any thoughts?

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: Marantz support question

Hi I had my SR7200 in the shop also. The 1st time they said that they couldn't find anything wrong with it. I brought it home and had the same problem. Brought it back and they had it for about 1 month and finally called and said that they talked with Marantz and the DSP needed to be replaced. They said that they would have to send it to Mararntz and it would cost about $150

Posted on Feb 28, 2008

satavlad
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SOURCE: Hi Guys, Have marantz sr 7000 in for repai and

what is the location number of (c104) part.

Posted on Nov 22, 2009

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SOURCE: my Marantz sr 4001 receiver has no output. Is

my friend has the same problem with an SR 4001. the tech said it was an internal fuse soldered to the board. the display showed an error code that clued in the tech of the problem. I am trying to find the fuse on the board, and trying to get a value(Volts-amps) of the fuse

Posted on Jul 28, 2010

  • 99 Answers

SOURCE: only one speaker works in dvd/cd mode, both work when you use AM/

could be dry solder joints on the input of the amp?

Posted on Sep 12, 2010

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1 Answer

I have a Marantz sr 870 that was working fine when last used. It has been sitting a few years. I now have no output to the speakers or to the headphones. Mute is not on. Please help?


There is a repair manual http://www.manualsparadise.com/service-repair-manuals/Marantz/SR870/RWSPFM-63663893-1

I cannot speak to the company that sells its reputation. The issue is most likely due to the protection circuit in the final audio section. Most use a relay to disconnect the speakers in the event of an overcurrent condition. The relay can fail for a number of reasons.

Dec 02, 2016 | Marantz Audio Players & Recorders

1 Answer

Marantz sr6001 stanby blinking


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

Dec 09, 2011 | Marantz SR6001

1 Answer

Where i can get an marantz pm493 amp volume knob also on the amp bass trible is now working and only 1 side speaker power is working any idea what is wrong..


you can get the know right from the dealer at this link http://us.marantz.com/us/Support/Pages/ServiceCenter.aspx as far as the one speaker working, switch the speakers to make sure its the unit and not the speaker box, if that doesn't help you probably have a blown output in the unit itself,, since its a Marantz Its worth the cost of having it repaired,, as with all High end receivers or amps, Be sure the unit is in the off position before you attach or disconnect any speakers ,, if they short out,, our gonna blow the output

May 21, 2011 | Audio Players & Recorders

1 Answer

I have a Marantz SR7200. I have been using for a long time with 6ch stereo with no problem. Suddenly, it starts to make a lot of noise on front speakers in any mode. It just stops this noise when source...


Hello Sergio.

Sounds like a bare wire (speaker wire) most probably is touching your SR's metal body.

Remove all speaker cables, re-terminate them clean (cut, trim, and twist again) and then re-plug them in to the binding posts.

When you go puredirect, it overcoms some filtering circuits of the board and this should be the reason why it stops.

Try that & advise.

Dec 13, 2010 | Marantz SR-7200 Receiver

1 Answer

I have blown the protection circuit on my yamaha rx 600d amp anyone with a clue whats needed to fix?


Hi friend,when something goes wrong in the output of the amplifier the protection circuit take place to prevent further damage could cause by DC power such as speakers or other related circuits...I think in your situation either one or both output amp stage have blown,then the protection cct turned on (not blown protection circuit!?). If so you have to check all the output transistors for short cct, if shorted you must also check all the DC bias cct nearby such as small transistors,resistors...If you are not familar with amplifier it better to find a tech as all amplifiers need a very precide repair technic , If the DC BIAS were wrong , when you turn on the power it will blow straight away! All times and cost will be waisted!
GOOD LUCK!
Tan Ta

Nov 23, 2009 | Yamaha Audio Players & Recorders

2 Answers

Marantz SR-18EX; Front left channel crackles


The f-l channel of the sr18, & sr18ex & sr19 is a common failure location due to the heating and cooling over the years. The crackling an/or distortion, is most commonly due to the amplifier going into a high idle, or d.c. offset that can no longer be controlled by the adjustment potentiometers on the board. usually the two 2sc3200 transistors become unstable, and as well a 47mfd and a 470 mfd elect. caps nearby. Also distortion is caused by one or more of the zener and germanium diodes all grouped near the big dual ceramic white resistor. The amp block is held in by six screws. first remove the cross bracket, then cut the cable tie free from the hole on the board. Ten screws hold the top board on, the pull the boards apart from the connectors. before replacing it, resolder ALL of the connector pins to BOTH boards.

Apr 20, 2009 | Marantz SR-18EX Receiver

1 Answer

Marantz SR-940


Just finish repairing Marantz SR 940 with no sound output. Problem was a clamped speakers relay located behind the speakers lugs (red and black post connectors). To reach the relays you must remove the little circuit board behind those colored connectors et unsolder the posts. There is 2 relays, one for A set and one for B set of speakers. Very EASY when you know the solution!!

Nov 24, 2008 | Audio Players & Recorders

1 Answer

Standbye light comes on but tv wont start


Probably similar problem to that I've got. On inspection found Inverter board blown up, due to the cheap capacitors having blown. I can't get a cct diagram for this board, so can't repair it. Need a replacement.

Aug 01, 2008 | Televison & Video

2 Answers

Marantz support question


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.

Jan 28, 2008 | Marantz SR-7200 Receiver

4 Answers

Marantz SR 7200


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.

Jan 29, 2007 | Marantz SR-7200 Receiver

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