Onkyo TX-SR875 Does Not Retain Settings After Power Loss

R9304 or R9310 are broken, if no light in display. This are 10 ohm resistor sitting on the board behind the volum knob in front.

Turn it on, then hold down the VCR/DVR button then press the power button again. The display should show "clear" when done correctly and this returns all settings to their factory defaults.

Hello, I suggest having your receiver serviced. Thank you, Onkyo USA

No internal battery, a large "SuperCap" on the main board acts as one. Look for C8007, 0.1 F, 5.5V.

THEY USE A MEMORY CAP.ITS LOCATED ON THE MAIN PCB ASSEMBLY, REF. C7701 ONKYO PART NUMBER IS 3000078/ WITH THE UNIT TURNED OFF MEASURE THE VOLTAGE YOU SHOULD HAVE APPROX 5V IF NOT THE CAP IS BAD. ALSO MEASURE WITH UNIT ON AND YOU SHOULD ALSO MEASURE 5 V IF NOT THEN THE SUPPLY VOLTAGE GOING TO THE CAP IS BAD.

hi! i do have a couple of codes here for your Onkyo 2006, 2219, 2220, 2318, 2410,5002, 5018, 5073, 5074, 5075, 5076, 5077, 5078, 5079, 5080, 5081, 5082, 5084, 5085, 5086, 5087, 5130, 5131, 5140 hope this helps! goodluck!

Recommend changing your FINAL drive AMP IC most house BOTH right and left channels, your drivers right channel input is good cuz it is used to make the left channel signal

No battery, but there is a 0.1 F supercap on the main board that acts like one. Look for C8007.

you can download a copy on the Onkyo website

Check speaker cables are in the right way as ONKYO amps have the conections side by side not up and down like most amps,also if you are useing hdmi leads go to the hardware set up in the menu and turn off the audio out for hdmi.
hope this helps.
CABLE GUY.