Power Transistors A1694 and C4467 - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, 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 20th September 2009, 06:39 PM   #1
diyAudio Member
 
Join Date: Sep 2009
Default Power Transistors A1694 and C4467

Hi All,

I am tring to repair a TEAC AV-H500 amplifier with shorted power amp transistors type SK A1694 and C4467

Could anybody let me know where I could find those parts and where to look for the service manual of the above amplifier

Thank you for your help

Giovanni
  Reply With Quote
Old 20th September 2009, 09:42 PM   #2
pjp is offline pjp  India
diyAudio Member
 
pjp's Avatar
 
Join Date: Nov 2006
Location: under the rainclouds
Its 2SA1694 and 2SC4467
  Reply With Quote
Old 4th August 2010, 09:27 PM   #3
diyAudio Member
 
Join Date: Aug 2010
Quote:
Originally Posted by pjp View Post
Its 2SA1694 and 2SC4467
Hi, I don't suppose you know which ones supply the audio for the centre and right channels do you ? Both of mine have deteriorated and are now almost gone.

I am without cct diagram and have not got my scope out yet.

Thanks
  Reply With Quote
Old 22nd August 2010, 03:26 PM   #4
diyAudio Member
 
Join Date: Aug 2010
Quote:
Originally Posted by triotech View Post
Hi All,

I am tring to repair a TEAC AV-H500 amplifier with shorted power amp transistors type SK A1694 and C4467

Could anybody let me know where I could find those parts and where to look for the service manual of the above amplifier

Thank you for your help

Giovanni

I still haven't found a AV-H500 cct diagram. I bought the AV-H500D and it definatley not the same.

Managed to work out that these are the output transistors for the various chs :

Right - Q534 (C4467), Q518 (D2058), Q536 (A1694)
Left - Q533 (C4467), Q517 (D2058), Q535 (A1694)
Centre - Q583 (C4467), Q567 (D2058), Q585 (A1694)
Surround - Q584 (C4467), Q568 (D2058), Q586 (A1694)

Some of the tx numbers cannot be seen from the top/bottom without removal of the whole fan ducting including power tx's.

My PCB is a KUP 11045-1

All tx's tested ok, so resoldered everything that looks hot, in the hope a dry joint is to blame somewhere.
Will let you know.

Still not found a AV-H500 cct diagram if anybody can point me in the direction.

Paul
  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
Mounting power transistors loovet Pass Labs 6 29th October 2007 10:53 PM
Power transistors for DoZ? bezobraznia Solid State 2 5th February 2005 02:05 PM
Op-Amp boost with power transistors. Don_de_marco Chip Amps 6 15th October 2004 06:01 PM
SGS power transistors hifiboy Solid State 0 4th October 2004 08:44 AM
Updating old power transistors hifileslie Solid State 5 24th August 2002 05:44 PM


New To Site? Need Help?

All times are GMT. The time now is 06:55 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