Op-amp help! What is 6552?!?!?! - diyAudio
Go Back   Home > Forums > Source & Line > Analog Line Level

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

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 16th May 2006, 08:42 PM   #1
diyAudio Member
 
Join Date: Jan 2005
Location: Bari
Default Op-amp help! What is 6552?!?!?!

In the tuner I'm going to tweak: a technics St-S1 there's an ic : it has 8 pins, in dual in line pacKage... on the top is written 6552, is it an op-amp? Could be something else? Do you think I can replace it with an audiophile one? The tuner comes witha transistor output stage before an ic that protect against pop... I don't know if the ic is in the tuner section and if i can replace it obviously if it is an op-amp....
Any idea?
Thank You all....!
Domenico
  Reply With Quote
Old 16th May 2006, 09:05 PM   #2
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Domenico,

Your opamp is most likely the AN6552. Datasheet can easily be found on the net using Google.
I'll refrain from other comments because I don't know the tuner.

/Hugo
  Reply With Quote
Old 16th May 2006, 09:44 PM   #3
diyAudio Member
 
Join Date: Jan 2005
Location: Bari
Most of all I'mn intersted to know if this little ic could be somthing else in this package, since in the top isn't write "an", obviously it's a Technics (trhat means panasonic so is could be esxtremely probable this is this component...
Thank you,
Domenico
PS If You have any suggestion to improve the tuner please make me know!
  Reply With Quote
Old 16th May 2006, 10:01 PM   #4
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
You will need a schematic if you want to do some tweaks and confirm that the IC is indeed the AN6552. All other assumptions is like working in the dark. I'll check my pile of old schematics tomorrow.

/Hugo
  Reply With Quote
Old 16th May 2006, 10:37 PM   #5
johnnyx is offline johnnyx  United Kingdom
diyAudio Member
 
Join Date: Jan 2004
Location: manchester
A link to the AN6552 datasheet Here
  Reply With Quote
Old 17th May 2006, 08:51 AM   #6
diyAudio Member
 
Join Date: Jan 2005
Location: Bari
Thanks for the op-amp datasheet link...
I have asked many on line schematic seller for the st-s1, thay have in catalogue the ST-S1 schematic but when I asked them for a copy no reply has been send...( excuse my horrible english)

If you find a schematic copy and you can send me a scan of it, It will be so helpfull!

Bye,
Do
  Reply With Quote
Old 18th May 2006, 07:40 AM   #7
diyAudio Member
 
Join Date: Feb 2004
Location: utrecht
Have you asked Technics service people for the schematic. When it is out of production for some time sometimes they just mail you one. That happened to me at least in search for a JVC tuner.

regards,

e&e
  Reply With Quote
Old 18th May 2006, 08:03 AM   #8
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
I don't have the ST-S1 schematic. From what I've seen in other Technics tuners, the AN6552 is used as the output driver; line and headphones.

/Hugo
  Reply With Quote
Old 18th May 2006, 01:15 PM   #9
diyAudio Member
 
Join Date: Mar 2005
Location: Rimini
This op amp should be a NE5532 clone!

ciao cicero32
  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



New To Site? Need Help?

All times are GMT. The time now is 03:29 AM.


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