Question about Onkyo TX-SR875 Receiver
Let me know if you can reach me at my email the update 1.04 of the amplifier onkyo 875.
Thank you in advance.
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Posted on Jan 02, 2017
SOURCE: Onkyo TX-SR500 loosing settings
Turning any receiver off will erase the settings - there is no backup battery (Onkyo uses Battery Free Memory Backup) and the length of time depends on the capacitor charge. Why not just leave the receiver plugged in? Stand-by mode uses a negligible amount of power - enough to keep the capacitors charged and the LED on the front panel on.
Posted on Jan 28, 2008
Player can be made to work without remote. But it is a pain.
You need to press pause then play in the right combination.and you can get both DVDs and Blu Ray disks to work. I bought a store floor model that did not have a remote. I went through the same problem when I would lose the remote for the HD-DVD player. My four year old daughter knows this trick pause pause play for DVDs and pause play pause play for blu
Posted on Sep 21, 2008
SOURCE: 875 onkyo dead display
The 10 Ohms resistor R9304 in series with the the 44V display power supply was open.
How to find it:
Remove the to cover.
On the right hand side of the front panel you will see on the side a wide white flat cable going toward the back of the receiver.
Beside it is a 4 black wire band connecting the front panel to a 3x4cm power PCB which is parallel with the front panel inside the receiver (attached to the front frame).
It has visible on the left side a diode bridge and a fuse - above the fuse you can find the R9304, a SFR16 package (1x3.5mm) marked BrownBlackBlack.
Check continuity.Replace if open wit a 1W resistor
Good job ONKYO, save 1/3 of a penny...
For the DIY:
As an added step I replaced the R9304 with a 2W 47R resistor, replaced the series transistor regulator Q9301 (tall TO92) with a bigger package (isolated TO220) and one of the two series 22V zenners from the base - D9310 - with a 10V one.
Output voltage drops from 44V to 34V, display is slightly dimmer but overall stress is down.
Posted on Oct 09, 2008
u have a short.
remove all speakers cables and turn it on, if remains on and u can up the volume do the next.
1: turn it off.
2: connect only 1 speaker cable (each time to see if the short is in one speaker or cable)
3: turn it on, up the volume.
this way u must be able to see what cable or speaker have the problem.
if still the same prob the short is inside.
i put a answer of a prob where cant up of 41 check the cleaning method.
Posted on Jan 12, 2009
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