Kenwood KDC-319/4019 Service Manual page 4

KDC-319/4019,5020
SWITCH UNIT (X16-163x-xx)
REF.
No.
IC1 LCD DRIVER
IC2 REMOTE CONTROLLER
Q1 KEY SCAN START
Q2 IC2 POWER SUPPLY SW
Q3 KEY GREEN ILLUMI SW
Q4 KEY RED ILLUMI SW
4
COMPONENT DESCRIPTION
FUNCTION OPERATION
Drives LCD.
Controls the unit.
Turns on when the base level goes "L".
Turns on when the base level goes "L".
Turns on when the base level goes "H".
Turns on when the base level goes "H".