[TechAssist] Re: Sony Tuners

  • From: Jim Shupe <jim@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 28 May 2004 13:56:35 -0700 (PDT)

Larry...

  Why not resolder the main tuner and reinstall it?
I find that most Sony tuning problems I see are caused
by fatigued solder in either the tuner(mostly bad
grounds to the tuner body) or the IF/AGC/AFT(mostly
dry joints at coil pins).

  Jim Shupe, CET
  Lloyd's TV
  Yucca Valley, CA

--- Larry Poffen <lpoffen@xxxxxxx> wrote:
&gt; I am working on a Sony KV-32XBR45 set.  It came
in
&gt; intermittent. Pix would
&gt; flash &amp; go off with sound doing likewise for
about
&gt; 10 minutes, then seem to
&gt; work ok.  Found that tapping on main tuner would
&gt; simulate problem.  Main
&gt; tuner is a 8-598-254-40  &amp; sub tuner is a
&gt; 8-598-047-01.  After removing the
&gt; "A" board &amp; tuner &amp; reordering
connections I now
&gt; have a permanent no pix or
&gt; sound , just snow &amp; garbage.  Will any other
tuner
&gt; sub for the main unit?
&gt; Does anyone know if a 8-598-431-00  will sub for
the
&gt; main tuner?  I have a
&gt; good one of these.   Thanks   Larry
&gt; 
&gt; Larrys TV Service
&gt; Broken Arrow OK 74011
&gt; phone 918-455-1041
&gt; Fax 918-451-4485
&gt; e-mail lpoffen@xxxxxxx
&gt; 
&gt; 
&gt; 
&gt;
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