No sound from my technics sh eh 770 surround speakers when radio is on

Pro Logic cannot be decoded from a non Pro Logic source.

are you getting any error message in the display?

Could be just dirt on lens. Try cleaning it.

you can get your sharp 770 sh unlocked through codes. you can get the codes either from your service provider or from other online providers like Mobileunlocksolutions.com

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are you trying to use the speaker system on your tv? or are you trying to get sound from your tv to your surround system?
you will need audio patch cables!

sound from your tv to surround:
line out on tv to line in on surround

sound from your surround to your tv:
line out on your surround to line in on your tv

If you're asking for the pairing pin, it's 0000 or 1234

make sure you have speakers A and B on, sometimes that is the problem

Try the Technics SH-AC500D Digital Surround Processor. Its outputs should match the inputs on the RX-V2090. I own both units, though I am using a DDP-1 with the Yamaha receiver. I use two separate amps with the Technics to achieve surround sound using my good vintage stereo system (two of them actually - one for front and ane for rear). The Technics is a nice piece of kit.

Greetings,

I would like to refer you to leethedeuce, he knows more about audio system setups.

Keep us posted and thank you for using our service.
FixYa for all your troubleshooting needs.

Hi!
The problem is, that your SH-AC300 needs an amp with 5.1 input (but no decoder). For this purpose technics delivered SA-AX710.
So if you'd like to use your current equipment it would be impossible.
The only option is for you to buy 2 more Power Amps (SE-A900S), so that each of 3 amps would take care for one part of music. (one for FL, FR; one for RL, RR; and one for sub and center).
Another option is for you to buy SA-AX710. Then all the problems would be solved with it.