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16.3. EXPLANATION OF BLOCK DIAGRAM / CIRCUIT OPERATION
16.3.1. OPTION CARD (KX-TD61291CE)
Composition: / DSP IC (IC14, IC15) / Flash ROM (IC10, IC12) /
Circuit Operation: / This card has two voice message circuits. The voice message circuit is
composed of DSP and Flash ROM. / DSP has the functions that PCM recording and playback,
voice prompting, tone detection and generation. / DSP stores Flash ROM with voice data and
voice prompt.
16.4. TROUBLESHOOTING GUIDE
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