IC Help - 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 31st December 2005, 05:28 AM   #1
diyAudio Member
 
Join Date: Apr 2005
Location: Simcoe Ont
Default IC Help

Can anybody help with this IC? Yamaha offers no details or datasheet. The purpose of the IC is to convert Synth keys to a Keyvoltage. The voltage should be .25v@ key 1 and 4Volts at key 37.
I have attached a shematic
Attached Images
File Type: gif cropped gif.gif (10.6 KB, 129 views)
  Reply With Quote
Old 31st December 2005, 07:25 AM   #2
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
What's your problem with it? It is most likely custom silicon, made specifically for Yamaha, and I would guess, a long time ago, as this would be implemented in digital these days.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 31st December 2005, 09:33 PM   #3
diyAudio Member
 
Join Date: Apr 2005
Location: Simcoe Ont
Default IC

My problem is that I don't understand the circiutry so I don't know where to begin testing. I have no Key voltage.
  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 08:00 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