Question about Marantz SR-7300 6.1 Channels Receiver

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Marantz Receiver SR7300 display gone blank

Hi, my receiver works but the display is dead. i can still control the amp using the OSD. any ideas how i can fix it? is it to do with the fuse? if so how do i change the fuse? any help appreciated.... koolace

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SOURCE: Receiver will not turn on

It is probably shorted out. the fact that you hear a relay click is bad news for you. Take it in and tell them that you cannot get power from the switch through to the main board.

Posted on Jul 26, 2007

  • 133 Answers

SOURCE: marantz 4240 receiver

It could be the op amp, however there are other possibilities like:

- a bad speaker or a speaker cable (try some swapping, see if the left channel is still dead)

- a bad / damaged speaker connector or a bad solder contact on that same connector inside the unit

- a dirty / oxydized connector pin or a bad pin solder contact on any of the connectors inside the unit

- if the main volume pot is actually made of several pots stacked onto a common axis (unlike the standard stereo pots it will have more than six pins), see if any of the pins are poorly soldered and resolder if necessary, if it has a connector also check that for dirty contacts

These are just some of the possibilities so don't take anything for granted.

Hope you can find out what it is.


3rq8 (Triarcuate)

Posted on Aug 03, 2009

  • 417 Answers

SOURCE: hello i have a marantz receiver sr7400 fuse

Unplug the unit. Carefully unscrew the screws for the case. Probably 4 screws, 2 on each side of the unit. Remove the cover. Look for the fuses, and replace with exact same type/specs of the faulty fuse. If the fuse, is on a printed circuit board, be careful dislodging the fuse. Hope this helps.

Posted on Apr 07, 2010

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Receiver will not turn on

It is probably shorted out. the fact that you hear a relay click is bad news for you. Take it in and tell them that you cannot get power from the switch through to the main board.

Jul 26, 2007 | Marantz SR-7300 6.1 Channels Receiver

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