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POWER AMPLIFIER (IC101: LA4598)
The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC101. Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Terminal Power GND Ch1 B.S. Ch1 OUT VCC Ch1 N.F. Ch1 IN D.C. Pre GND Stand by Ch2 IN Ch2 N.F. Ch2 OUT Ch2 B.S. NC In/Out In � Out In In In � In In In In Out � � Ground (0V) source Terminal for a bootstrap capacitor Channel 1 output +9V source Negative feedback input Channel 1 input Terminal for a decoupling capacitor Ground (0V) source Power control signal input. 0 V: Off, +9 V: On Channel 2 input Negative feedback input Channel 2 output Terminal for a bootstrap capacitor Not used Function
