Question about Marantz SR8001
The units says heaphones are connected however they are not and prior to the issue had never had heaphones inserted.
There is a microprocessor IC(a computer inside your unit) that senses when you insert a headphone. Yes, as mentioned above, the jack may be bad, but unlikely. The connection from the jack to the IC(computer) may not be damaged, or the IC above, may be damaged. If you are interested in having your Marantz repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
Posted on Jun 26, 2015
Usually the headphone jack is like a mechanical switch and it's probably just not making a good connection inside. Use the correct size headphone jack and insert it then remove it maybe a couple of times and see if that fixes it.
Posted on Apr 18, 2014
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Posted on Jan 02, 2017
SOURCE: how can i remove standby
Resolve the issue.
Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.
Posted on Apr 17, 2011
There is a contact inside the jack that is closed when the plug is inserted. Apparently this is no longer happening. This should be an easy repair for a qualified technician.
Posted on Feb 26, 2009
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