Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
Buying anything on Amazon? Please use the Geekzone Amazon aff link.




249 posts

Master Geek
+1 received by user: 1


Topic # 84791 8-Jun-2011 08:41 Send private message

Need some advice please peeps.

Car radio cassette has been working fine since buying it a few weeks back. On the way home last night the FM radio went really quiet  - I had to turn it up a lot just to hear it, and it was in mono (it had occasional bursts of "normal" volume, which nearly blew thre speakers!).

Same this morning - started off fine then the same happened.

Here's the thing though - it only does it when tuned to a station. When off station, the volume is normal - only static, of course, but normal volume static.

Any ideas?  It's a Sony, btw.




Your mother was a hamster and your father smelled of elderberries

Create new topic
780 posts

Ultimate Geek
Inactive user


  Reply # 478841 8-Jun-2011 08:55 Send private message

Return it.
Sounds like a fault to me.



249 posts

Master Geek
+1 received by user: 1


  Reply # 478842 8-Jun-2011 08:57 Send private message

wreck90: Return it.
Sounds like a fault to me.


Can't - TradeMe. It's a radio cassette. And it was working fine for at least a couple of weeks so the previous owner wouldn't have had the issue, I would have thought.




Your mother was a hamster and your father smelled of elderberries

1215 posts

Uber Geek
+1 received by user: 48


  Reply # 478865 8-Jun-2011 09:47 Send private message

Try forcing mono mode. Pre-amp could be failing which will die when it goes into stereo mode and kicks in



249 posts

Master Geek
+1 received by user: 1


  Reply # 478887 8-Jun-2011 10:43 Send private message

Another piece of info - the tape deck works fine too (the volume is normal).

It can't be that the tuner has died otherwise I wouldn't get anything at all on the radio.

And I know - I can replace the whole thing because car stereos are cheap as chips etc etc etc. I just want to make sure there isn't an easy fix, as I would rather not spend too much chip money at all.




Your mother was a hamster and your father smelled of elderberries

1018 posts

Uber Geek
+1 received by user: 46


  Reply # 479067 8-Jun-2011 18:41 Send private message

A cassette? How much did they pay you to take it away?

Anyway, check the aerial connection, and the earth too.




---
James Sleeman

My hobby - listing small amounts of interesting/useful hobby electronic components hardware and stuff on Trademe for cheap, all good geek stuff for the "maker" revolution ;-)

Tip for Trademe addicts: install an addon for your browser to get thumbs for all listings.

1120 posts

Uber Geek
+1 received by user: 124

Subscriber

  Reply # 479081 8-Jun-2011 19:40 Send private message

sleemanj: A cassette? How much did they pay you to take it away?

Anyway, check the aerial connection, and the earth too.


+1 arial connection




I know a little more than nothing but not much...

3084 posts

Uber Geek
+1 received by user: 33

Trusted

  Reply # 479083 8-Jun-2011 19:41 Send private message

Sounds like it could be a bad solder joint inside the radio.  If you are keen, and adept with a soldering iron, try taking the cover off, then apply power and poke around with something made out of plastic (a pen with the nib retracted or similar).  By this means, you may be able to find where the bad joint is, and resolder it.

Failing that, you are up for a new head unit.  This is the trouble with buying such old stuff on Trade Me.  You never know what you are going to get!







249 posts

Master Geek
+1 received by user: 1


  Reply # 479097 8-Jun-2011 20:53 Send private message

Checked the aerial - all good. Earth is fine.

Pretty much like clockwork between 5 - 10 minutes after turning it on the sound goes (as I said, it's still clear, no static, but volume right down, mono, only on FM and only when on a station). So it looks like it happens when it warms up a bit. And every so often for a couple of seconds it comes right then back to poo.

Stuffed if I know - looks like I'll have to spend the chip money!! Eventually, anyway - that's why I got a cheap radio cassette, just to see me through until I could get enough funds for a new one.

Thanks for your help though.




Your mother was a hamster and your father smelled of elderberries

1215 posts

Uber Geek
+1 received by user: 48


  Reply # 479109 8-Jun-2011 21:21 Send private message

Im still betting on the mosfet chip giving out when its trying to kick into stereo output load.



249 posts

Master Geek
+1 received by user: 1


  Reply # 479114 8-Jun-2011 21:28 Send private message

Oblivian: Im still betting on the mosfet chip giving out when its trying to kick into stereo output load.


Tried that too - nada.




Your mother was a hamster and your father smelled of elderberries

Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Police Camera Van Disguise
Created by Reanalyse, last reply by lNomNoml on 21-Dec-2014 23:33 (75 replies)
Pages... 3 4 5


Do I have the right to return this?
Created by corksta, last reply by kiwibro111 on 21-Dec-2014 23:54 (45 replies)
Pages... 2 3


Spark, the least secure part of your home network?
Created by NZtechfreak, last reply by joker97 on 22-Dec-2014 17:17 (21 replies)
Pages... 2


Slaughter of Innocents
Created by networkn, last reply by networkn on 19-Dec-2014 17:46 (64 replies)
Pages... 3 4 5


youtube downloader
Created by Ford, last reply by jarledb on 22-Dec-2014 16:57 (18 replies)
Pages... 2


What has Geekzone led you to buy?
Created by russelo, last reply by jarledb on 22-Dec-2014 16:41 (18 replies)
Pages... 2


Spray Foam Insulation
Created by AACTech, last reply by timbosan on 19-Dec-2014 16:58 (36 replies)
Pages... 2 3


Crew Drinking on Flights - Why!?
Created by networkn, last reply by Geektastic on 22-Dec-2014 09:35 (34 replies)
Pages... 2 3



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.