Question about Televison & Video
If the TV does not keep the presets and keeps loosing convergence, then using the service convergence procedure won't fix the problem.
In that case you will need to replace the two STKs mounted on convergence board. Those are the convergence ICs, see convergence board picture below:
The job consists in de-soldering old ICs and soldering new ones on convergence board. Better using coolant paste.
The convergence ICs are about $10 each (there are two of them). The job done by a professional is about $300.
The replacement ICs can be purchased on-line, from shops like Partstore or Vance Baldwin (encompass).
Here also all Service procedures for your Sony. Be careful when in service mode, some of the commands may damage the TV.
Service mode on NTSC TV.
Service mode on PAL TV.
Posted on Dec 11, 2009
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Posted on Jan 02, 2017
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