4
DDX3028/3048/3058/318/4038/4038M
DDX4028BT/4038BT/4038BTM/4048BT/4058BT/418
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MAIN UNIT
Ref. No
Application / Function
Operation / Condition / Compatibility
IC11
Tuner IC
FM/AM Tuner
IC101
Power IC
Power AMP
IC141
Electric Vol IC
Audio Vol Control, Audio Signal Select
IC151
NOR Logic IC
AMUTE control
IC191
OP-AMP X 2
DVD Audio LPF
IC261
Vdeo selector IC
RGB or YCbCr selector
IC701
MCU IC
System control IC
IC721
EEPROM
Memory
IC731
Voltage detect IC
Reset signal generate at 2.4V
IC751
AND Logic IC
REMOCON signal MIX circuit
IC761
AND Logic IC
Navi RX 3.3V
→
5.0V convert
IC762
AND Logic IC
Navi TX 5.0V
→
3.3V convert
IC801
Regulator
System DC Regulator IC
IC802
Regulator
D5V DCDC convertor IC
IC803
DCDC control IC
D3.3V/24.5V/-20V DCDC convertor IC
IC821
Regulator
For BU3.3V Regulator IC
IC831
Regulator
USB5V DCDC convertor IC
IC851
Regulator
15V Regulator IC
Q717
Transistor
SI control
Q731
Transistor
AMUTE control
Q791
Transistor
TOUCH control
Q801~805
Transistor
System DC control
Q821,822
Transistor
3.3V Power Supply control
Q871
SW FET
SW14V ON/OFF
Q872~875
Transistor
SW14V control
Q921,922
Transistor
FAN control
Q971,972
Transistor
BU_DET control
Q1121
Transistor
PRE_OUT_Mute
Q1221
Transistor
PRE_OUT_Mute
Q1301,1302
Transistor
PWIC control
Q1341
Transistor
AV_OUT_Mute
Q1501~1505
Transistor
AMUTE control
Q1507,1508
Transistor
AMUTE control
Q1941
Transistor
PARKING control
Q1951
Transistor
ILLUMI control
Q1961
Transistor
REVERSE control
Q6221~6224
Transistor
TOUCH control
Q8021,8022
Transistor
DCDC ERROR_DET
Q8101
SW FET
DCDC SW FET (D3.3V)
Q8102,8103
Transistor
DCDC control
Q8104
Transistor
DCDC ERROR_DET
Q8201
SW FET
DCDC SW FET (24.5V, -20V)
Q8202,8203
Transistor
DCDC control
Q8301
Transistor
DCDC control
COMPONENTS DESCRIPTION