Sony ST-S310 tuner trouble - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, 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 31st March 2006, 07:23 AM   #1
hiwiho is offline hiwiho  Germany
diyAudio Member
 
hiwiho's Avatar
 
Join Date: Sep 2004
Location: Berlin
Default Sony ST-S310 tuner trouble

Hey folks,

i wanted to reuse my old ST-S310 (about 15yrs old) these days. But after a minute or two, the signal indicator falls back to zero and the tuner mutes. Once that happened, i cannot receive any of the stored programmes in stereo nor tune into a new one. When i tune through and come near a station, the indicator rises but when at the exact freq, it falls back to zero and mutes.If i switch to mono, it plays even without any indicated signal. I have to switch it off for an hour to get stereo and then i can repeat it all.

Any idea anyone? Any service manual floating around?

Matthias
(Berlin, Germany)
  Reply With Quote
Old 31st March 2006, 07:36 AM   #2
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Carefully adjust the discriminator coil. You may also need to resolder that coil.
  Reply With Quote
Old 31st March 2006, 09:02 AM   #3
hiwiho is offline hiwiho  Germany
diyAudio Member
 
hiwiho's Avatar
 
Join Date: Sep 2004
Location: Berlin
Elso,

done ;-) and success. You're always such a great help!

Matthias
  Reply With Quote
Old 31st March 2006, 02:43 PM   #4
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Smile Walang anuman!

Walang anuman!
(you are welcome)
  Reply With Quote
Old 5th November 2006, 09:15 AM   #5
diyAudio Member
 
Join Date: Nov 2006
Default Sony ST-S310

Hi
I have a Sony ST-S310 Tuner which seems to have a memory problem. If I switch it off over night it looses all memorised radio stations. However if I only switch it off for a few hours it keeps its memory OK... Any ideas on this problem anyone as it is irritating to have to manual tune everyday or leave it on all the time.

Help !
  Reply With Quote
Old 5th November 2006, 10:49 AM   #6
hiwiho is offline hiwiho  Germany
diyAudio Member
 
hiwiho's Avatar
 
Join Date: Sep 2004
Location: Berlin
pretty much seems like the cap that's buffering the memorys ps has gone weak. But don't ask me which one that is ;-)

Matthias
  Reply With Quote
Old 22nd March 2015, 09:07 PM   #7
civismo is offline civismo  Portugal
diyAudio Member
 
Join Date: Mar 2015
Quote:
Originally Posted by hiwiho View Post
Hey folks,

i wanted to reuse my old ST-S310 (about 15yrs old) these days. But after a minute or two, the signal indicator falls back to zero and the tuner mutes. Once that happened, i cannot receive any of the stored programmes in stereo nor tune into a new one. When i tune through and come near a station, the indicator rises but when at the exact freq, it falls back to zero and mutes.If i switch to mono, it plays even without any indicated signal. I have to switch it off for an hour to get stereo and then i can repeat it all.

Any idea anyone? Any service manual floating around?



Matthias
(Berlin, Germany)

Hello !

I have the exact same problem with my Sony ST-S310


About the " Carefully adjust the discriminator coil. You may also need to resolder that coil. " , how can i do that ??

Here it is a video of a ST-S310 Disassembled

https://www.youtube.com/watch?v=ttcXSOOKW4o

Here it is the service manual: Téléchargement Gratuit Documents Techniques Audiosony/sts310.pdf
  Reply With Quote
Old 24th March 2015, 10:24 AM   #8
diyAudio Member
 
Join Date: Nov 2004
Location: Germany
Sony tuners from this era often have PCB-mounted transformers whose solder joints go bad. Renew these, and you should be back in business.
  Reply With Quote
Old 24th March 2015, 11:57 AM   #9
civismo is offline civismo  Portugal
diyAudio Member
 
Join Date: Mar 2015
Quote:
Originally Posted by sgrossklass View Post
Sony tuners from this era often have PCB-mounted transformers whose solder joints go bad. Renew these, and you should be back in business.
Hello!

Could you please identify in this picture what transformers should i resolder ?

Thank you

Click the image to open in full size.

Captured from:
https://www.youtube.com/watch?v=ttcXSOOKW4o
  Reply With Quote
Old 24th March 2015, 12:10 PM   #10
hiwiho is offline hiwiho  Germany
diyAudio Member
 
hiwiho's Avatar
 
Join Date: Sep 2004
Location: Berlin
Sorry - after 9 years i cannot remember which one it was

Just resolder all bigger parts (coils, capacitors), that'll do for sure!

Matthias
  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
Sony SCD-1 trouble and fix Jamh Digital Source 0 10th August 2008 06:40 AM
Sony ST 5150 tuner SM Praudio Parts 0 3rd January 2008 04:03 PM
Bad Tuner on Sony REC-800 snaps98 Car Audio 0 5th October 2005 08:58 PM
Sony ST-J55 Tuner Mods kestrel200 Solid State 9 19th March 2005 02:38 PM
Fisher 500c - Trouble shooting tuner section ALBQ Tubes / Valves 0 6th May 2004 10:40 AM


New To Site? Need Help?

All times are GMT. The time now is 10:57 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright ©1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2