5
KDC-C469/Y/FM/FMA
KDC-C669/Y
Ref. No.
Component Name
Application/Function
Operation/Condition/Compatibility
Q30
DTC114YUA
Eccentric disc SW
When an eccentric disc is detected, Q30 is turned on, and a preceding beam is
made to be delayed.
Q31
DTC124EUA
VIN SW
While spindle servo or disc loading/eject mode is selected, a base goes “Hi”, and
Q31 is turned on.
●
RF MODULATOR UNIT
Ref. No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
UPC7805AHF
BU 5V AVR
While BACKUP is applied, AVR o5V.
IC2
LC72329-9B24
System MI-COM.
System control.
IC4
NJM78L05UA
5V AVR
Power supply for FM modulator and RF amplifier.
IC101
NJM2060M
Isolation amp.
IC102
NJM4565MD
Low pass filter
IC301
BA1405F
FM ST modulator
IC302
NJM4565MD
1/2 VCC driver,
ALC detection amp.
Q1
DTC124EK
ACC detection
When Q4 is turned on, Q1 is turned on during ACC applied.
Q2
2SA1782(T,U)
POWER SW
When Q3’s base goes “Hi”, Q2 is turned on, and RF modulator circuit is working.
Q3
DTC124EK
Q4
DTC143TK
Reset SW
When RESET SW on display unit is pressed, Q4, Q1 and Q6 are turned off, and
IC2 is holding.
Q5
DTC143TK
CH RESET SW
When RESET SW on display unit is pressed, Q5 is turned off, and SYSTEM
RESET signal is outputted to CD changer.
Q6
DTA124EK
Hold detection SW
When RESET SW on display unit is pressed or ACC is OFF, Q6 is turned off, and
IC2 is holding.
Q8
DTC143TK
Relay driver
FM modulator output / Vehicles antenna input switching.
When a base goes “Hi”, FM modulator output is selected.
Q9
2SC4640(T,U)
Ripple filter
Power supply for RF amplifier
Q101
2SK2158
ALC control SW
Q201
2SK2158
Level control SW
Level 1/2 : OFF, Level 3/4 : ON
Level control SW
Level 2/4 : OFF, Level 1/3 : ON
RF oscillator buffer
Mode (1/2) SW
Mode 1 : ON, Mode 2 : OFF
POWER ON mode : OFF, POWER OFF mode : ON
Mode 1 : OFF, Mode 2 : ON
●
DISPLAY UNIT
Ref. No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
LC75852W
LCD driver with key-matrix
IC2
PNA4602M
Remote control light senser
Q1
DTC144EK
LED ON/OFF SW
When Q1’s base goes “Hi”, Q2 is turned on, and LED is turned on.
Q2
DTB123YK
Q3
DTA144EK
Key-matrix permition SW
Ready on key-matrix
Q4
DTC144EK
IC2 ON/OFF SW
When Q4’s base goes “Hi”, Q5 is turned on, and 5V is supplied to remote control
Q5
DTA144EK
sensor.
COMPONENT DESCRIPTION
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TEL 13942296513 QQ 376315150 892498299
