The Sony SQD-2010 uses the Sony chips CX-050, CX-049 and CX-718, it is an SQ decoder only. I simply added the Involve SQ (Evaluation Module) and 9 volt supply inside the same box. I did some repair work and recapped the Sony decoder. The Involve decoder is selected by pushing the discrete button, all other original functions still work.yeah, great! It has to suit your needs!
Which SQ circuit did you use? I see the 3 Motorola chipset?
Which CD-4 is in this Sony implementet? with the both 28pin 5022/ECG815 or single transistors?
(I still have to do a lot with mine ...)
The SQD-2010 looks and functions the same as the more common SQD-2020.
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