It says check sp cable - Yamaha HTR-6130 Receiver

Error 91-125 on a Beta SP UVW 1800 is a diagnostic code indicating a problem with the audio channel 1 input. The error message "appears like a feedback on audio channel 1" suggests that there is a signal present on audio channel 1 even though nothing is connected to it. This could be caused by a malfunctioning input or a problem with the internal signal routing.
Here are some steps you can try to troubleshoot this issue:

1. Check all audio inputs and outputs to ensure that nothing is connected to audio channel 1.
2. Disconnect all cables from the Beta SP UVW 1800 and power it off. Wait for a few minutes and then power it back on.
3. Check the audio routing settings in the menu of the Beta SP UVW 1800 to ensure that audio channel 1 is not being routed to an unexpected location.
4. Inspect the audio channel 1 input for any damage or corrosion.
5. Try a different audio cable or input device to rule out any issues with the current cable or device.
6. Check the manual of the Beta SP UVW 1800 for any specific troubleshooting steps.

If none of the above steps resolve the issue, it may be a hardware issue and you may need to contact the manufacturer for further assistance. It could be a malfunction in the audio channel 1 input circuit or a problem with the internal signal routing. A qualified technician should be able to diagnose and repair the problem.

my dear you chek wire cable i feel sensors cable wire is broken

It is one ot two things, the audio output transistors or ic,s are shorted, or the speaker wires in the back of the surround sound are shorting.

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Sounds like the cable box is outputting in 4:3 rather than 16:9, it should also output in either 720p or 1080i/1080p. Check the settings on your cable box and set them to 16:9 and 1080i/180p. If that does not rectify the problem then you need to look at the settings on your Samsung

The speaker cables are the ones that clamp or tighen down on the back of the reciever. All the spkr wires have to have the positive and negative leads correct. Also not aven one little strand of wire can be touching another conductor or you will have this problem. Make sure all leads are correctly ran and hooked up positive to positive and negative to negative from the back of the reciever all the way to the speakers. This should solv your problem.

i think it means speaker cable?

http://www.fixya.com/search/p514076-yamaha_rx_v2700_7_1_channels_receiver/check_sp_cable

There is an internal short that is being detected. This is probably a defective output transistor that is somewhat sensitive to heat. This should be a straightforward repair with a parts cost in the $20 range. Add in the local labor rate for the total cost.

Dan

That is a check the speaker wire error, caused by a short or perceived short. If you look at the back of the receiver you may see 1 strand of the wire loose, they are very hard to see sometimes. You may use banana plugs as it is painful to get everything hooked up without a few loose strands.

If there is still the issue check your speaker connections for the same issue. If they are in ceiling/wall speakers disconnect them all then plug them in one at a time to narrow it down.

If the issue persists perhaps one of your speaker wires has a short somewhere, could be a misplaced drywall screw from hanging a picture, or a carpet tack strip, or a pet deciding it was a nice chew toy.

If you are completely sure it is none of those then I would say it is a bad speaker or receiver. Try changing in and out known good speakers/receivers if you have access to them to see which one it is.

Good luck

try putting a soldering iron on the joints of the backlight connection and melt the solder in place and do it for both contacts. Try this and it might just be a loose connection. Dry solder joints hapen all the time in most new electronics