Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

marantz PM7200 dead
marantz PM7200 dead
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 11th February 2010, 07:45 AM   #1
east electronics is offline east electronics  Greece
diyAudio Member
east electronics's Avatar
Join Date: Jan 2006
Location: Athens GREECE
Default marantz PM7200 dead

so here it is a marantz PM7200 that is dead

The amplifier clicks from stand by that is audible then again after a few seconds protection clicks and all voltage appear to be normal inside

Front panel though is totally dead no led and absolutelly no control is working ....

in the first amplifier that i had to fix ( 2 of them come in to the shop with in 2 days ) i found that asmall TO92 device (S80820CL) located next to TMP87C846NG front procesor that is a voltage watch dog and provides reset to pin 18 was faulty

in the second amplifier was the exact same thing that caused the problem but also the processor was gone

in a third amplifier Yamaha that ihad to fix similar problems where caused by the same thing S80820CL

Alternative is that you may skip The S80820CL by connecting directly the pin18 of the prosessor to the diode and capacitor that is there thus providing voltage from Vdd to pin 18 for a constand reset ...

regards sakis

( there is no point on writing these but search engines will find it and may be some diyer will bennefit from it )
  Reply With Quote
Old 7th December 2010, 12:21 PM   #2
robahrc is offline robahrc
diyAudio Member
Join Date: Dec 2010
Hi, Ive seen your reply on this site on one of the marantz problems:

I have a Marantz PM7200 which is in standby mode. (protection mode?) What it does:
-It powers on, measuring all circuits powered, but it does not respond to any remote control input.
-tested remote to be working 100% and sending out signals + equipped new batteries.
-When connected to speakers, it does not give any sound. Can you tell me what to do to get it working? Thanks in advance
  Reply With Quote


marantz PM7200 deadHide 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
Help Needed - Marantz 1060 dead channel Wharf_Creek Solid State 14 12th March 2010 04:23 PM
Help! Marantz CD63 dead! wyman Digital Source 2 23rd April 2009 07:27 PM
Marantz Pm7200 Amp jjbmon Solid State 3 22nd February 2009 08:46 PM
Marantz PM44SE - Dead(ish) right channel nig123 Solid State 7 6th June 2007 06:29 AM
marantz pm7200 preamplifer jules_gerfault Solid State 0 16th February 2007 08:00 AM

New To Site? Need Help?

All times are GMT. The time now is 03:12 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