My onkyo nr708 wont comunicate with my sony BR-65x750D tv

"Volume knob not working on my onkyo tx-ds656"
replace the volume knob but check the volume control IC first such as voltage and whether an analog signals come out by an oscilloscope.

and " lost remote " Check if the onkyo remote is working, by:
(1)point a mobile or a smart phone camera at an onkyo remote control.
(2)Don't take any photo.
(3)Now the remote picture is on the mobile or smart screen.
(4)Press any remote control key.
(5)White flashing light can be seen if remote is ok.
(6)If remote is fine, replace the remote senor on tx-ds656 with same part number.

"when first turned on, drops to tv, once reset, stays on cab/sat" Maybe the EEPROM
used to STORE user information goes wrong.
Check
(1) voltage supplied to EEPROM +3.3V. at pin8
(2)C226 47uf 16v
(3)C225 10k nf
(4)R256-257 4.7K
(5)R260,R262 100ohms

if they are correct.If correct, buy a reader to read the data stored in EEPROM and burn it to a new EEPROM. To locate IC203 CPU then find IC204: EEPROM

search in taobao or google"Taobao USA/Hong kong/Tai Wan"then search"GZUT EZP_XPro V2 USB " will be cheaper <15USD. Maybe this can be used.

https://world.taobao.com/item/559202211788.htm?_e_pi_=7%2CPAGE_ID10%2C8206437564

You should indicate you remote.
In any case, if code is not in your remote you should follow indications for No code
If you don't have a manual, look for one using google,and terms manual, make and model of your remote

It sounds like the unit was disturbed by a power surge or blackout. Part of the controllers circuit was compromised and out of sync. The parts may be more expensive than a replacement unit.

I'll second what dennisae said. I've got a TX-NR708 that had all sorts of video issues after about 6 months of use until I got the HDMI board replaced. This seems to be an issue with this brand over a wide number of models.

What is the Model of your Onkyo remote?
I found the following codes to program an Onkyo TX SR507 Remote with a Sony TV:

10000, 10017, 10037, 10053, 10150, 10154, 10650, 10810, 11167, 11651, 11685, 13167
You can find the link here:
http://www.eu.onkyo.com/dl/1334036/Manual_TX_SR507_Remote_Control_Codes.pdf

Sony TV codes for the Onkyo TX-SR605 are : 0000, 0650, 1100, 1167, 1300, 1505, & 1651.

Instructions for the Onkyo RC682M and more remote codes are available here. The Onkyo TX-SR605 manual is available here.

I hope that helps.

Hi, as the Onkyo receiver you have does not have HDMI switching, the only thing it will do for you with a Blu-Ray player is process the audio signals.  The video from the BR player will have to go directly to an HDMI input of your hi def TV.  In this case, either Sony or Panasonic BR player will be equal.  Assuming you keep the Onkyo unit you have, you would want to use the optical digital output from the BR player as the audio source into one of the optical, digital audio inputs on the Onkyo.  In an ideal world, your receiver would some that does do HDMI switching.  This way, all the audio and video signals from any audio or video source would be automatically switched and channeled through 1 simple HDMI cable into your hi def TV.  This will make you life simpler as ther would be no need to select an appropriate input on the TV, as well as one on the receiver.  That said, buying a new receiver in addition to a BR player is more costly.  Good luck.  Let us know how it goes.

PRESS SETUP GO TO MISCELLANEOUS PRESS ENTER THEN DOWN TO OSD SETUP PRESS ENTER AGAIN AND DOWN TO MONITOR AND CHANGE TO 16.9.

HOPE THIS HELPS.

CABLE GUY.