KDC-8021/M9021/X859
4
COMPONENT DESCRIPTION
Element Purpose & Function Operation, Condition, Compatibility
IC1 PANEL u-com
IC2 SPECTRUM ANALYZER IC
IC3 REMOTE CONTROL IC
IC4 BUFFER IC It is changed into 3.3V from 5V
IC5 3.3V REGULATER The power supply of IC and UFD(Logic) which are driver by 3.3V
Q1 REMO ON SW The power supply of IC2 and IC3 is turned on when the base level goes "L".
Q2 SC-CON SW ON when the base level goes "H".
Q3,4 FL+B SW FL+B(VDD2) is turned on when Q3's base level goes "H".
Q5 FL BLK SW ON when the base level goes "H".
Q6,7 KEY ILLUMINATION SW
Lights green key-illumination when Q6's base level goes "H".
Lights red key -illumination when Q7's base level goes "H".
SWITCH UNIT (X16-16xx-xx)