Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts 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
Thread Tools Search this Thread
Old 9th November 2018, 03:03 AM   #1
QRX9001 is offline QRX9001
diyAudio Member
Join Date: Nov 2018
Default TX-200W

I'm a newbie here and I seek some advice. I have a Kenwood KR-9600 monster stereo receiver. The power pack (TX-200W) are extremely rare and hard to find. Is there someone out there that can design a circuit using the latest transistors/technology that can take the place of the old power pack? Is there an engineer/tech guy that has this specialized knowledge?
  Reply With Quote
Old 9th November 2018, 07:29 PM   #2
russc is offline russc  England
diyAudio Member
Join Date: Mar 2011
Location: W Yorkshire
The service manual is available on the web and shows full schematics.
It also shows the expected voltages around the circuits.
It even gives a troubleshooting guide.
You need to know if the power supply is at fault and the fault is not caused by a failure elsewhere.
  Reply With Quote
Old 10th November 2018, 12:14 AM   #3
PRR is offline PRR  United States
diyAudio Member
PRR's Avatar
Join Date: Jun 2003
Location: Maine USA
"Power Pack" appears to be, not the power supply, but a Sanken-like transistor module, essentially a pack of power Darlingtons.

(So this is in the wrong Section.)

I would not presume to design a replacement for a module with a history of failing, not for less money than it would cost to buy a 2*150W power amp at the rock-n-roll shop.
  Reply With Quote
Old 10th November 2018, 12:05 PM   #4
russc is offline russc  England
diyAudio Member
Join Date: Mar 2011
Location: W Yorkshire
Couldn't find TX-200W but many references to TA-200W.
Throw the power amp away & drop in a class D board suitable for the +/- 67V supply.
Or just use the pre-outs & an external amp.
  Reply With Quote


TX-200WHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
200W+200W Class-D design considerations EstChrist Class D 1 15th November 2017 12:27 PM
100-200W amp nikel1992 Solid State 5 30th June 2013 09:06 AM
STK 200W PCB gonzaled13 Chip Amps 2 13th November 2012 02:23 AM
kem 200w (??? ) amp !!!! east electronics Chip Amps 0 14th July 2007 12:58 PM
DIY 200w amp blondfire Solid State 7 1st March 2007 11:35 AM

New To Site? Need Help?

All times are GMT. The time now is 06:09 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio