Help to identify component - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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
Reply
 
Thread Tools Search this Thread
Old 23rd December 2012, 11:49 PM   #1
RS232 is offline RS232  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Swindon
Default Help to identify component

Hi all
Need urgent help to identify one component in a powered monitor for my local community center.
The part in question is marked 206B - J123B - JRC and is a smd opamp or so I thing.
The c. center needs it working for the Christmas party on the 25th so any help is welcome.

Ric
  Reply With Quote
Old 24th December 2012, 12:07 AM   #2
diyAudio Member
 
Join Date: Mar 2012
Most like NJM2068.
  Reply With Quote
Old 24th December 2012, 12:10 AM   #3
agdr is offline agdr  United States
diyAudio Member
 
agdr's Avatar
 
Join Date: Sep 2010
Could that "B" be an "8"? If so that may be a JRC2068 = NJM2068 = RS components #713-9824 in the UK

Buy Operational Amplifiers OP Amp Dual GP 18V 8-Pin DMP New Japan Radio NJM2068M online from RS for next day delivery.

Mouser also has it in various packages:

njm2068 Operational Amplifiers - Op Amps | Mouser

Edit: Sorry about the double post - I was composing while Moon Track was posting.
  Reply With Quote
Old 24th December 2012, 12:18 AM   #4
RS232 is offline RS232  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Swindon
Thank you guys, I had a closer look on the little critter and is in fact a 2068.
Now my problem is were to get some on Christmas eve...

Ric
  Reply With Quote
Old 24th December 2012, 12:33 AM   #5
agdr is offline agdr  United States
diyAudio Member
 
agdr's Avatar
 
Join Date: Sep 2010
That is the same op amp used in the gain stage of the O2 headphone amplifier, just the DIP8 version:

EHP-O2 Award Winning Portable Headphone Amplifier | Epiphany Acoustics

Maybe you could tack solder an DIP-8 socket over the surface mount pads if someone nearby posts with a spare. The pinout is the same with the dip and smd versions.
  Reply With Quote
Old 24th December 2012, 12:40 AM   #6
diyAudio Member
 
sofaspud's Avatar
 
Join Date: Nov 2005
Location: San Antonio
Odds are probably good that the OPA2277 will work. At this late hour it might be a take-what-you-can-get situation.
__________________
It is error only, and not truth, that shrinks from enquiry. - Thomas Paine
  Reply With Quote
Old 24th December 2012, 01:11 AM   #7
agdr is offline agdr  United States
diyAudio Member
 
agdr's Avatar
 
Join Date: Sep 2010
sofaspud has a good point! The NE5532 would also substitute in a lot of situations. Same pinout:

Farnell Export

Buy Operational Amplifiers NE5532A dual 10MHz 9V/uS op amp, SOIC8 Texas Instruments NE5532AD online from RS for next day delivery.
  Reply With Quote
Old 24th December 2012, 08:01 AM   #8
jaycee is offline jaycee  United Kingdom
diyAudio Member
 
Join Date: Apr 2004
Location: Norwich, UK
Pretty much any dual opamp should go in there and the thing should work - BUT, you should be thinking about what fried it.
  Reply With Quote
Old 24th December 2012, 08:23 AM   #9
JMFahey is offline JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
Quote:
BUT, you should be thinking about what fried it.
And, even before that, whether it's actually fried. Why do you think it is?
  Reply With Quote
Old 25th December 2012, 10:54 AM   #10
RS232 is offline RS232  United Kingdom
diyAudio Member
 
Join Date: Jan 2006
Location: Swindon
Thank you all guys
What caused the failure was one of the guys from the band used one of the amplified outputs from the mixing table in to the line in socket.
This monitor is a piece of junk, the amp inside is actually a chip amp (TDA7294).
Well I got it working, I bypassed the amp and is now been used as a passive monitor till I get the parts from farnell.

Thanks and Merry Christmas to all
Ric
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can you identify a mystery component in a passive crossover? SteveWils Parts 12 29th July 2011 02:34 PM
Can someone identify this component? teemuk Parts 6 29th February 2008 12:54 PM
Help Identify this component! DoomPixie Parts 10 28th August 2006 03:01 PM
Help me identify this Surface mount component jives11 Parts 6 8th December 2005 02:50 PM
Help to identify component aeon845 Parts 1 19th May 2004 04:35 PM


New To Site? Need Help?

All times are GMT. The time now is 04:45 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2