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Insignia ns-r5100 shuts off when volume is barely at a high level

The only speakers i have hooked up to this receiver are two 8ohm bookshelf speakers. when the volume is up not even half-way, the receiver will shut off. like if i watch a dvd and there is a gunshot, the receiver will shut off. this doesn't seem to be normal and it's really quite frustrating. i'd like to return it, but it's over a year old now. perhaps this is a common issue with this receiver and Best Buy will fix it or replace it? any help or suggestions would be appreciated. thank you.
noah

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Posted on Jan 02, 2017

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SOURCE: Insignia NS-R5100 5.1ch receiver shuts

the output transistors are blown in one or more channels also the driver transistors are blown in the same channel.

you can find this problem real easy using a DVOM (digital volt ohm meter) on the continuity test(BEEP).

start be removing the amp section from the receiver and laying it on the table bench whatever no going from B-C and C-E if any beeb there junk and the driver transistors are also and there are a few resistors that are junk.

parts list

2@2sd2390 sanken get from newark and only newark/farnell
2@2sb1560 sanken get from newark and only newark/farnell
2@2sd947 from newark
4@ 2sc1841 or 2sc1845 to replace 2sc1845
4@ 2sa998 or 2sa992 to replace 2sa992
8@ .22 ohm 1/4 watt metal film resistor 1%
2@ 4.7 ohm 1/4 watt metal film resistor 1%

this is a parts list for 2 channels
only get the powertransistors (the sanken) from newark any others i have found as counterfeit and destroy stuff and dont work

i dont remember location #'s on the board but

Posted on Mar 17, 2010

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It looks like your receiver's high-speed protection circuit is being activated. It is definitively not a fuse. When a fuse pops, you have to physically replace it. When the protection circuit is activated, the speaker output is cut off and the power supply indicator flashes. There are a few reasons why this happens:

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