Marantz 1060 Blown Left Channel - 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 27th July 2007, 09:26 AM   #1
barako is offline barako  United States
diyAudio Member
 
Join Date: Jul 2007
Default Marantz 1060 Blown Left Channel

Greetings, audio DIYers. My first post here, I think I'm about to venture into parts unknown (to me). Anyway, I've had this Marantz 1060 for years and I just love it. I have 5 other receivers/amps but the 1060 is the one I listen to. Unfortunately, on the last occasion, the main fuse blew and when I replaced it, the left channel was gone.

I have read most of Giaime's adventures with his 1060. I tested the power transistors and sure enough, the 2 on the left side were shorted on pins 1 and 3. I've decided that I will replace all 4 original 2SC897 with MJ15003 since they are easily obtained from Allied Electronics here in the US.

I'm quite handy with a soldering iron and know my way around a circuit board, but my experience is mostly with digital components. So, please excuse me if my questions appear to be quite dumb.

Should I replace anything other than the power transistors? Unlike Giaime's, nothing is smoking on my board. What could have caused the blown transistors? I wasn't doing anything out of the ordinary when the fuse blew. Also, am I correct in assuming that the transistors with shorted pins 1-3 are the bad ones? (It could be the other way, for all I know.) It doesn't really matter since I'm replacing all 4, but would like to know anyway. Would there be a difference in the audio quality with the substitute power transistors?

Lastly, could someone please email me the 1060 schematic? The dummyload.com site with the schematics is down.

All help would be greatly appreciated. I'd like to get this baby up and singing again soon.
  Reply With Quote
Old 27th July 2007, 12:07 PM   #2
Giaime is offline Giaime  Italy
diyAudio Member
 
Giaime's Avatar
 
Join Date: Oct 2004
Send a message via MSN to Giaime
Hi barako,

drop me a mail, and I'll answer you with the full schematic
  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
Lost bias on Marantz 1060 right channel DragonMaster Solid State 20 11th November 2009 02:23 PM
Distorted left channel - Marantz 2385 jblmar Solid State 2 27th March 2009 05:04 PM
marantz 1060 issue pezza89 Solid State 3 1st June 2008 10:03 AM
Picked up a Marantz 1060. negah Solid State 10 10th December 2007 08:07 PM
Marantz PM-66SE Blown Channel Chudley Solid State 2 8th May 2007 07:28 PM


New To Site? Need Help?

All times are GMT. The time now is 07:11 PM.


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