Components Description - Kenwood KDC-X615 Service Manual

KDC-X615,6015
KDC-6080R/RY/RV,7016
MAIN UNIT
Ref.No. Component Name
IC1 784217AGF506 System MI-COM.
IC2 S-80830ANNP Reset IC
IC3 HD74HC27FP
IC150 TDA7479D
IC300 TDA7400D
IC301 TDA7401
IC500 TDA7386
Q1 2SA1576A
Q2 DTA124EUA
Q3 DTA144EUA
Q5 2SA1576A
Q100 2SA1703-AN
Q101 DTC144EUA
Q102 2SA1703-AN
Q103 DTC144EUA
Q104 2SC4081
Q300 DTA124EUA
Q301 DTC114TUA
Q302 2SC4081
Q303 DTC144EUA
Q350A,B DTC343TK
Q351A,B DTC343TK
Q500 DTC114YUA
Q600 2SC4081
Q601 2SC4081
Q602 2SA1703-AN
Q603 DTC114YUA
Q604 2SA1703-AN
Q607 DTC114EUA
Q605 2SA1576A
Q606 DTA124EUA
Q608 DTC144EUA
Q609 DTA123JUA
Q610 2SB1565(E,F)
Q611 2SC4081
Q612 2SD1760
Q614 DTA124EUA
Q615 DTC124EUA
Q618 2SB1565(E,F)
Q620 2SC4081
Q621 DTA124EUA
Q624 DTC144EUA
Q622 2SB1565(E,F)
Q625 2SC4081
4

COMPONENTS DESCRIPTION

Application/Function
Mute logic
RDS decoder
E-VOL. & N.C. MPX
HPF & NON FADER VOL.
Power IC
SW 5V
Mute driver for Audio mute SW
Changer reset SW
Panel 5V SW
FM+B SW
AM+B SW
Composite out buffer
Noise detection time constant SW
Noise buffer
E-VOL. mute SW
Audio mute SW
Audio mute SW
SVR SW
BU detection(Momentary power down detection) ON when the base goes "Hi" during BU applied.
ACC detection
P ANT SW
P CON SW
P CON protection
Dimmer SW
Ext. AMP SW
BU 5V AVR
Illumination AVR
Illumination AVR SW
Servo AVR
SW 14V
Audio 8V AVR
Operation/Condition/Compatibility
"Lo": Detection voltage below 3.0V
3 input NOR gate x3
ON when the base goes "Lo".
ON when the base goes "Lo".
ON when the base goes "Lo".
ON when the base goes "Lo" during the panel not detached.
Q100 is turned ON when Q101's base goes "Hi".
ON during FM reception
Q102 is turned ON when Q103's base goes "Hi".
ON during AM reception
OFF during FM seek, ON during FM reception.
Q301 is turned On when Q300's emitter goes "Hi".
E-VOL. is muted when the base goes "Hi".
Audio pre-outs are muted when the base goes "Hi"
Audio pre-outs are muted when the base goes "Hi"
POWER IC RESET is activated when the base goes "Hi".
ON when the base goes "Hi" during ACC applied.
Q602 is turned ON when Q603's base goes "Hi".
ON during AM/FM reception.
Q604 is turned ON when Q607's base goes "Hi".
ON during POWER ON mode except ALL OFF mode.
Protect Q604 by turning ON when P-CON output is grounded.
Prevents Q605 tuning ON during start-up after power ON.
ON when the base goes "Hi" while vehicle small lamps turn on.
ON when the base goes "Lo".
Inverted darlington connection.
ON during BU applied.
ON when the base goes "Hi".
Q614 is turned ON when Q615's base goes "Hi".
Inverted darlington connection.
Q618 is turned ON when Q620's base goes "Hi".
Audio 8V AVR and Servo AVR ON/OFF control
Q621 is turned ON when Q624's base goes "Hi".
Inverted darlington connection.
Q622 is turned ON when Q625's base goes "Hi".