20 Most Recent Panasonic SA-HE200 Receiver Questions & Answers


THE UNIT MAY HAVE BEEN SUBJECTED TO A POWER SURGE DURING A BRUSH WITH A HURRICANE ... IN FORT LAUDERDALE A FEW MONTHS BACK.

Panasonic... | Answered on Jun 19, 2017


This is a variant of the "protect" mode for receivers. This indicates that a problem was detected in the final stage of the output amplifier and the unit has shutdown to prevent further damage. The "fix" for this is to replace either the output transistors or the amp-pac. I don't know which variant is used in your specific model. If it is the output transistors, expect a parts cost in the $15-$30 range. If an amp-pac, the parts will run in the $75-$100 range. Dan

Panasonic... | Answered on Aug 29, 2013


that means you are trying to pull way to much power from the receiver and it can not supply the power needed

Panasonic... | Answered on Jul 17, 2013


Hello
It preamplifier section has the trouble. If you want to do it by yourself at home, you must have through knoledge in electronics, as this section inside is a very coplicated one, even a well experienced technican too, take a long time to troubleshoot, and locate the faulty component or components. OK.

Panasonic... | Answered on Feb 06, 2012


11_7_2011_7_09_01_pm.jpg replace resistor 1702 4.7Ohm

Panasonic... | Answered on Nov 07, 2011


Generally speaking, an amp attempts to protect 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 possible root cause for intermittent shutdown.

Panasonic... | Answered on Jun 07, 2011


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.

Panasonic... | Answered on Mar 09, 2011


Service Manual download Here directly from Panasonic's Site.


Hope this helps
Positive Feedback ALWAYS Appreciated :)

Panasonic... | Answered on Mar 06, 2011


HI:
Usually receivers go into overload due to a bad speaker make sure you disconnect the speakers also to make sure its overloading from a bad speaker. If the unit still shows overload even with all speakers disconnected, then your main amplifier output has a short usually a shorted output transistor is the cause. Unplug the speakers one at a time to and turn the unit on after disconnecting one of the speakers , to determine which speaker is at fault.

Panasonic... | Answered on Jan 23, 2011


All speaker levels are set relative to the front, so they are not adjustable by themselves other than the overall volume control. Page 12 of the manual.

Panasonic... | Answered on Dec 26, 2010


hi there i have had this problem with technics amplifiers generally with them it was negative and positive mix up between input terminals for the speakers or in other case's running the amp with 2 many speakers.
eg. having 2 speakers Bi wired into 1 input making a 6.1 receiver into a 12.1 which makes the amp struggle causing overload or the worst case is a power unit problem.

Panasonic... | Answered on Aug 02, 2010


It could also be overheating... when it overloads does it feel excessively hot? Seek the reason - restricted ventilation, clogged vent holes, for example.

If it's NOT hot, carefully disconnect the speakers at the receiver end one at a time to see if the overload goes away.

Panasonic... | Answered on Jun 10, 2010

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