3
KDC-MP202/MP333
KDC-MP333RC/MP433
COMPONENTS DESCRIPTION
●
ELECTRIC UNIT (X34-409x-xx)
Ref. No.
Application / Function
Operation / Condition
IC1
System
µ
-COM
System control
IC3
Power Supply IC
DC5V x 1, 7.9V x 1, 8.1V x 2, 10.2V x 1, P-CON, P-ANT output
IC8
Reset IC
“L”: detection voltage below 3.6V
IC10
E-VOL & Tuner
E-VOL, Tuner, Stereo decoder
IC11
E2PROM
Save & Load for tuner adjust data
IC14
Power IC
Signal amplifier
Q1
14V SW
ON when the base goes “Hi”
Q2
SERVO+B AVR
Output voltage 7.5V
Q3
Control SW for SERVO+B
ON when the base goes “Hi”
Q4
Control SW for IC3
ON when the base goes “Hi”: Output voltage 10.3V.
Q5
FL+B SW
ON when the base goes “Hi”
Q6
FL+B AVR
Output voltage 11V
Q7
Control SW for FL+B
ON when the base goes “Hi”
Q8
FM+B AVR
Output voltage 8.0V
Q9
Control SW for FM+B
ON when the base goes “Hi”
Q51
SERGE Det.
ON when the base goes “Hi”
Q101
ACC Det.
ON when the base goes “Hi” during ACC is applied
Q103
BU Det.
ON when the base goes “Hi” during BU is applied
Q104,105
MUTE Control
ON when the base goes “Hi”
Q301
DSI ILLUMI SW
ON when the base goes “Hi”
Q401
Panel 5V SW
ON when the base goes “Lo”
Q501
AM RF Amplifier
Adjusts for gain
Q502
FM RF Amplifier
RF amplifier
Q701
Mute driver for PRE OUT
ON when the base goes “Lo”
Q702
Mute SW for Lch PRE OUT
Pre-output is muted when the base goes “Hi”
Q703
Mute SW for Rch PRE OUT
Pre-output is muted when the base goes “Hi”
Q901
DC OFFSET Det
ON when the base goes “Q902 and Q903’s output separate”
Q902,903
DC OFFSET Det SW
ON when the base goes “IC14’s SP-OUT (DC) separate”
●
SWITCH UNIT (X16-350x-xx)
Ref. No.
Application / Function
Operation / Condition
IC1
VFD DRIVER
IC3
REMOTE SENSOR
Q21
PAN SW5V
“ON” when the base goes “H”
