G
Greg
- Jan 1, 1970
- 0
Hi,
I recently came into possession of a 1970 Pioneer SX-9000 receiver.
While trying it out I found that when changing the volume a loud
crackling sound was coming out of the speakers. I researched the
issue and found it was most likely due to dirty contacts, I tried
some tuner spray but it didn't do anything. I also noticed a hissing
sound coming out of the speakers when no music was being played and a
"clunk" noise when turning the unit off. At this point, I contacted a
local electronics repair shop and took it in for an estimate. They
gave me an estimate to clean the contacts and replace a few capacitors
that were bad. Well, I picked up the unit yesterday and 95% of
cracking is gone and no more clunking happens when powering the unit
off. However, the hiss remains. In the google archives, I found the
following:
http://groups.google.com/[email protected]&rnum=1
The problems outlined in this post are mostly what is happening to
mine. The one thing I can add is the hissing gets much worse in one
channel as the receiver warms up. Within 15 minutes, the hiss becomes
noticeable and starts to degrade the sound of the music coming out of
that channel.
Any suggestions on what I should do to fix this? The above repairs
already cost me $65 and I don't want to put much more money in to
this. My electronics skills are minimal (I can solder a bit), so if I
knew exactly where the problem was I could try to fix it myself.
Also, do I have a beef with the repair shop?
Any advice and suggestions would be helpful.
Thanks,
Greg
I recently came into possession of a 1970 Pioneer SX-9000 receiver.
While trying it out I found that when changing the volume a loud
crackling sound was coming out of the speakers. I researched the
issue and found it was most likely due to dirty contacts, I tried
some tuner spray but it didn't do anything. I also noticed a hissing
sound coming out of the speakers when no music was being played and a
"clunk" noise when turning the unit off. At this point, I contacted a
local electronics repair shop and took it in for an estimate. They
gave me an estimate to clean the contacts and replace a few capacitors
that were bad. Well, I picked up the unit yesterday and 95% of
cracking is gone and no more clunking happens when powering the unit
off. However, the hiss remains. In the google archives, I found the
following:
http://groups.google.com/[email protected]&rnum=1
The problems outlined in this post are mostly what is happening to
mine. The one thing I can add is the hissing gets much worse in one
channel as the receiver warms up. Within 15 minutes, the hiss becomes
noticeable and starts to degrade the sound of the music coming out of
that channel.
Any suggestions on what I should do to fix this? The above repairs
already cost me $65 and I don't want to put much more money in to
this. My electronics skills are minimal (I can solder a bit), so if I
knew exactly where the problem was I could try to fix it myself.
Also, do I have a beef with the repair shop?
Any advice and suggestions would be helpful.
Thanks,
Greg