[TechAssist] Re: TA Technics receiver SA5370(Panasonic)..No right channel sound
- From: "Tel-Tek Electronics" <teltek3@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 3 Dec 2003 19:01:00 -0500
Jeff;
No print..but if it uses the SVI output IC, large IC in the center.
There should be a couple of small transistor mounted to the same heat
sink. These 2 transistors get cracked solder connection, should resolder
both. Normally this will fix the problem. Word of caution...if you
suspect the SVI IC....give a high estimate...these are very expensive,
and my supplier will not give me any warranty on these, once they have
been installed. Go figure...if you did have a bad one...how would you
know without installing.
But as a rule on these Technics...it's the two small transistors
on that heat sink that give the problem, especially if no fuses are
blown.
-Ed-
Ed Gaidies
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
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Sent: Wednesday, December 03, 2003 6:20 PM
To: Techassist
Subject: [TechAssist] TA Technics receiver SA5370(Panasonic)..No right
channel sound
I don't do much in audio, but this is for a member of our borough
development committee and I told him I
would look at it.
This unit is probably 20 or so years old, but he wants it fixed.
Unit came in with actually really low audio on right channel. Turn
balance all the way and have some sound
from the tuner.
I have my 40(+/-) on the amps, but have trouble after that without a
schematic.
The rear fuse is fine as well as the speaker connectors. I'm not sure
where to inject my audio signal to
start testing. I tried checking components by comparing the similar ones
on the left channel and got no
where.
Anyone have any ideas, or a print?
Thank you.
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
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