jvc receiver jr-s301 - 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 May 2007, 08:41 PM   #1
adason is offline adason  United States
diyAudio Member
 
adason's Avatar
 
Join Date: Nov 2004
Location: Maryland
Default jvc receiver jr-s301

can anyone provide schematics, please?
jvc receiver jr-s301
thanks
  Reply With Quote
Old 31st May 2007, 08:53 PM   #2
es44 is offline es44  Denmark
diyAudio Member
 
es44's Avatar
 
Join Date: Apr 2005
Location: Fredericia, DK
Well, if you have a mailbox with enough space for a little more than 13 Mb, then i'm able to help you
Best regards
Ebbe
  Reply With Quote
Old 31st May 2007, 09:03 PM   #3
adason is offline adason  United States
diyAudio Member
 
adason's Avatar
 
Join Date: Nov 2004
Location: Maryland
that would be great Ebbe,
it should fit to my gmail
eorvisky@gmail.com
thanks
  Reply With Quote
Old 1st June 2007, 11:53 PM   #4
adason is offline adason  United States
diyAudio Member
 
adason's Avatar
 
Join Date: Nov 2004
Location: Maryland
Default receiver problem

hi everyone

last few days i spent battling with this jvc jr-s301 receiver
and i need your help

first the good news, tuner section works perfectly, power amp section works perfectly,
however, somewhere in signal pass something adds to the signal nasty cracking/poping sound

it sounds like dirty record, like listening dusty old scratched up record

it has this static dc character, sometimes its quite low, sometimes very violent, loud

it does not matter which signal source is selected, it does not matter how volume pot is high, even if it is down to the ground

thanks to Ebbe I have schematics, and it goes....signal selector, than volume control with loudness, than one amplification stage, than balance pot, than five band equalizer and off to power amp

the only thing which affects the cracking level is position of the pots on equalizer, however, it does not eliminate it, just does affect the frequency response

I have cleaned whole receiver in and out, all the switches, connectors, everything. I took the equalized board out and sprayed pots with contox, did not help a bit

I am almost inclined that reason for the static might be the first amplification stage, not the equalizer itself, but the sound is ok

did any of you outhere have experience with this kind of problem? any suggestions? I would have hate to bypass the equalizer, but if thats what it takes, to make it work, i will gladly do it, but at this point i am not sure it thats where the reason is,
the whole receiver, when its not cracking, has great sound

thanks for help
  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
A / V Receiver janderson Everything Else 0 24th May 2005 06:14 PM
DIY AM/FM receiver emuman100 Analogue Source 0 4th October 2004 01:49 AM
Hey i need help with receiver........EXPERTS HELP(two channel receiver) Andre Baptiste Parts 1 1st May 2004 10:20 AM
Need help : DIY Fm car receiver darkm4n Car Audio 7 17th January 2004 01:02 PM
diy receiver Randy Knutson Digital Source 0 15th January 2004 06:20 PM


New To Site? Need Help?

All times are GMT. The time now is 05:04 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