Question about Sony STR-DH540 5.2-Channel Home Theater Receiver

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I cannot get components to work through sony str-dh540.

Every once in a while my receiver will not play the components that are hooked up to it (satellite receiver and DVD player). It takes a series of shutting things off and turning them back on again to get picture and sound. My Satellite receiver is acting funny as well and I am on my third satellite receiver in 4 weeks thinking its been the problem but now I think its the home theater receiver. Can anyone help me???

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  • Contributor
  • 20 Answers

Two things come to mind
- Low input voltage
- Power supply issues

Low Power
As multiple items are having issues the issue sounds that a wiring issues. Have you tried another receptacle (plug) perhaps another room Try plugging only a light to the plug. Does it flicker or appear dim. A multi meter to check line level and a polarity tester to check that wiring is correct. A good power bar will have a polarity tester built in.

Power Supply.
When you must turn on and off a device before it starts working suggests that components have partially failed. Bad capacitors can exhibit this type of issue.

It is possible that a power issue is damaging your hardware. It is always best to use a good power bar. Passive bar are good for a few years. Active should work well for many years. Balance the cost of a power bar to the value of your equipment.

Posted on Jul 19, 2017

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snakehead
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SOURCE: Home theater reception

you need to unlpug your set and reconnect everything over and see what it does.if that does not work have a tech check your system.your sony recviever is the culprit let that be checked.good luck

Posted on Apr 05, 2007

welcomejee
  • 10594 Answers

SOURCE: sony str-dg820. having a problem getting video on tv

Hook up Composite / Component Monitor Out wire from receiver to TV video input because receiver will not change analog input into HDMI
You need to connect receiver and TV through analog video terminals as above.
Actually you are expecting that receiver will convert DVD player and Xbox analog video input into digital HDMI signal for TV and This is incorrect.

Posted on Jan 04, 2009

dunnbiker
  • 8546 Answers

SOURCE: STR-DE475 receiver flashes "PROTECT" when turned on

Protection is usually a sign of overheating or something is wrong at the power amplifier's output.

Theory: Protection is a delay and sometimes an internal test to allow the electronics to stabilize during power up before they are allowed to interact with the speakers. The most common cause of it remaining ON is that a speaker cable pair is shorted. Some isolation is required...

1. Turn the Power OFF.
2. Disconnect each set of the speaker wires that are directly attached to the receiver. Mark them so you remember where each one went. pay special attention to which conductor is on "+" or "POS" and which is on "-", "COM" or "Ground". You may elect to disconnect them one pair at a time if your sytem is complex and you don't want to lose track of where things were.

Turn the Power ON. Is the "Protect" indication gone from the display?
--------------------
If YES, you have a shorted speaker wire or speaker. To isolate the specific cause:

1. Turn the Power OFF.
2. Attach ONE speaker wire pair at a time and test it by turning the Receiver ON. When the "Protect" light returns you have isolated at least one of the cause(s). Disconnect the defective speaker cable and continue isolation of all speaker cables. Visually examine the cable at both ends for frayed wires that could touch each other or contact metal on the receiver or other objects.

To isolate further within the cable/speaker pair - disconnect the speaker end of the cable on the failing path. Try another cable that you know works, or at least one that doesn't cause Protection to stay on.

If you're electrically savvy and have a Digital Volt/Ohm Meter you can troubleshoot the short(s) with it.
-------------------------

If NO, there is probably an internal problem.

Is it solid or does it come on after the Receiver has been ON awhile.
It could be overheating.
Is the unit hot to the touch?
Is there a cooling device (fan)?
Is it stopped or clogged with dust?
Is there adequate ventilation around the unit for air to flow?
Clean any ventilation slots on the top and bottom of the unit.
Avoid stacking components that produce heat under an amplifier or receiver. Their heat rises. Also keep them away from other heat sources like like home heating vents and radiators.

Problem solid and NOT related to the speakers or heat: internal malfunction.

Let me know.

Posted on Apr 02, 2009

  • 1 Answer

SOURCE: STR-DE545 Receiver -

Turn the reciever off. Count to 9 slowly. Press the setup button and power on at the same time.let t run its demo. Turn the power off. count to 8 slowly. Turn the reciever back on. Porblem solved?

Posted on Aug 23, 2009

  • 137 Answers

SOURCE: Sound clicks off Sony STR-DE835 5.1 Channel

THIS UNIT HAS BAD SOLDER CONNECTIONS ON REGULATOR TRANSISTORS,REMOVE BOTTOM AND YOU WILL SEE THE BAD CONNECTIONS.ALSO BE SURE TO RE-TIGHTEN ALL CHASSIC GRD SCREWS AS THIS WILL ALSO CAUSE THE SAME PROBLEM.

Posted on Apr 14, 2010

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