Need help finding part for Onkyo receiver / schematics

supraken · 29th March 2009, 03:30 AM

I have an Onkyo SR806 receiver which I'm trying to fix. Looks like the left channels are out. I can find the transistors on mouser, but there's this one 3-legged metal plate resistor which I couldn't find. It says:

P H R
MPR 5W
R22J X2

I think it's a .68ohm x2 ceramic resistor, but I can't find it anywhere. Does anyone know where I can source these?

Also, would anyone have the schematics for this receiver by any chance? Thanks and I appreciate the help!

ostripper · 29th March 2009, 03:56 AM

P H R
MPR 5W
R22J X2

equals... a dual .22R emitter resistor
very common in OEMs ,a picture would confirm this.

Are they these ?

http://www.mcmelectronics.com/produc...5--22-/28-0540
OS

supraken · 29th March 2009, 06:37 PM

Yes! They looks exactly like the ones in the middle.

So R22J actually does stand for 0.22 ohms resistors in series?

It's weird because when I measured with a voltmeter, it looked like it was 0.68 ohms, I need to double check.

fjr · 29th March 2009, 06:44 PM

DMM's aren't accurate under 1Ohm.
An 0.22Ohm resistor easly measures 0.68Ohm!

jaycee · 29th March 2009, 06:51 PM

They're 2x0.22 ohm resistors with the centre pin common, which is where the speaker connects.

If you can't find them, you can replace with two similarly rated ordinary resistors BUT they must not be wirewound types.

supraken · 30th March 2009, 12:51 AM

Ah, ok. I'll place the order on the site that ostripper sent me.

Thanks a lot!

29th March 2009, 03:30 AM	#1
supraken diyAudio Member Join Date: Mar 2009	Need help finding part for Onkyo receiver / schematics I have an Onkyo SR806 receiver which I'm trying to fix. Looks like the left channels are out. I can find the transistors on mouser, but there's this one 3-legged metal plate resistor which I couldn't find. It says: P H R MPR 5W R22J X2 I think it's a .68ohm x2 ceramic resistor, but I can't find it anywhere. Does anyone know where I can source these? Also, would anyone have the schematics for this receiver by any chance? Thanks and I appreciate the help!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Need help finding a part.	Itsme	Car Audio	5	27th November 2007 02:56 AM
Parts for Onkyo TX-V940 Receiver	rh1530	Swap Meet	0	7th October 2006 02:39 AM
Need help finding this part	swordfish689	Car Audio	3	5th March 2006 01:23 PM
Newbie needs help finding part	Safe_Cracker	Car Audio	5	1st January 2006 05:57 PM
PSU in Onkyo TX-2000 receiver	stex	Chip Amps	1	14th September 2004 07:37 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

29th March 2009, 03:56 AM	#2
ostripper diyAudio Member Join Date: May 2008 Location: Albany , NY (smallbany)	P H R MPR 5W R22J X2 equals... a dual .22R emitter resistor very common in OEMs ,a picture would confirm this. Are they these ? http://www.mcmelectronics.com/produc...5--22-/28-0540 OS

29th March 2009, 06:37 PM	#3
supraken diyAudio Member Join Date: Mar 2009	Yes! They looks exactly like the ones in the middle. So R22J actually does stand for 0.22 ohms resistors in series? It's weird because when I measured with a voltmeter, it looked like it was 0.68 ohms, I need to double check.

29th March 2009, 06:44 PM	#4
fjr diyAudio Member Join Date: Feb 2009	DMM's aren't accurate under 1Ohm. An 0.22Ohm resistor easly measures 0.68Ohm!

29th March 2009, 06:51 PM	#5
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	They're 2x0.22 ohm resistors with the centre pin common, which is where the speaker connects. If you can't find them, you can replace with two similarly rated ordinary resistors BUT they must not be wirewound types.

30th March 2009, 12:51 AM	#6
supraken diyAudio Member Join Date: Mar 2009	Ah, ok. I'll place the order on the site that ostripper sent me. Thanks a lot!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)