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Quality as promised it arrived fast. No problems what so ever
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Good scan, very handy and it also includes the user manual. 122 pages in total.
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This manual was exactly what I needed. Detailed, useful and delivered as promised.
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Great manual good quality really helped in the repair of my Toshiba, thanks
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Print was clear and easy to read. Thank you Joe joeoldaudio
CX-977
Fig. 5: RFRP and RFCT circuit
5) SBAD Signal Circuit unit
In this unit, outputs from the photo detector, namely, E and F are processed through the addition amplifier. That is, E and F are added together and (E+F) signal is output from #15 pin of IC101 (TA2153FN), as SBAD signal. This SBAD signal, along with Focus Error signal, is used as one of the conditions that the system uses to internally judge Focus ON/OFF based on them. Also, SBAD signal is used to detect defects: defects that may be detected when the Pickup passes a scratch on the disk, for instance.
Fig. 6: SBAD circuit
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