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Onkyo 607 front display has stopped working (not been dimmed) I understand the problem is a resistor but does anyone have any more detailed information on what I need to do to fix? Thanks.

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SOURCE: Onkyo TX-SR605 display not working. Known solution

LOCATION R3910 SHOULD BE CHANGED TO 10 OHM 1 WATT ON POWER SUPPLY BOARD LOC. NUMBER IS U37

Posted on Jun 18, 2010

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1 Answer

Onkyo TX-SR875 Everything works fine,just no main unit display? Any ideas?


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.

Jun 09, 2012 | Onkyo TX-SR875 Receiver

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Onkyo HT-R500 no display


Look on line for service manual. Display problem is usually traced to 1, or more, of 3 resistors in the AC supply to the display. It appears that the resistors are supposed to be 1/2 watt but the one I removed from my unit was only 1/4 watt. The resistors are mounted on a small board mounted on the front side of the main transformer - right most board. I had to unscrew the transformer to access the resistor. I looked at voltages coming out of the transformer and the the same voltages leaving the circuit board. There is a 1 Ohm, a .47 Ohm and another that supply AC voltage to different parts of the display. I found one resistor open. Replaced it and I now have an operating unit.

Feb 14, 2012 | Onkyo HTR500 Receiver

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Display Panel Problem.... my Onkyo TX-SR805 AV receiver works properly except No Display on the front panel. I follow the instruction troubleshooting on the manual by resetting the unit but to no...


Display Panel Problem....

my Onkyo TX-SR805 AV receiver works properly except No Display on the front panel.

I follow the instruction troubleshooting on the manual by resetting the unit but to no avail. It's beyond warranty period.

please help, thank you

Sep 27, 2010 | Audio Players & Recorders

2 Answers

Hi I have an Onkyo TX-SR875. The AV receiver display panel has gone, so I reset it to factory defaults to see if it would bring it back - it didn't. Worse can't now see the on-screen setup menu to setup...


This is a common problem on onkyo receivers like the 805, 875 etc. The front panel display board has 2 faulty resistors(marked 9304 & 9310) which can blow out easily. Replacing them with some very basic soldering, resolved the issue for me.

View this link on the AVS forum for detailed instructions .

Look for the post titled "805 Display fix"

http://www.avsforum.com/avs-vb/showthread.php?t=857502&page=578

Dec 06, 2008 | Onkyo TX-SR875 Receiver

1 Answer

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.

Good luck!

Sep 08, 2008 | Audio Players & Recorders

1 Answer

Receiver display has disappeared but unit still works


If you are talking about the vacuum display on the front of the receiver, it could be either blown and need replacement or simply dimmed. There is a dimmer button on the front of the unit that should allow you to select between three different brightness settings.

Jan 27, 2008 | Onkyo HT-SR800 System

4 Answers

No display on my sr875 the next time i turned it on..i have no clue waht happend..it was just working fine yesterday,now, it suddenly shows one issue that needs to be resolve..i did everything i cud do but...


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.

Good luck!

Dec 14, 2007 | Onkyo TX-SR875 Receiver

1 Answer

Onkyo TX-NR801


Are you in "sleep" mode. This dims the display...accordianman

Oct 30, 2007 | Onkyo TX-NR801 Receiver

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