Kenwood DDX5024 Service Manual page 7

● ELECTRIC UNIT (X34-575x-xx)
Ref. No. Application / Function
IC1 3-terminal regulator
IC2 3.3V regulator
IC100 Buffer for remote controller
IC101 Voltage detector
IC103 E2PROM
IC104 System μ-com IC
IC105
IC300 Logic IC (multiplexer)
IC302 Electronic volume IC
IC303 Logic IC (multiplexer)
IC304 Logic IC (multiplexer)
IC400 AUDIO ISO AMP
IC401 AUDIO ISO AMP
IC402 Logic IC (inverter)
IC500 RDS decoder IC
IC600 Power IC
Q1,2 Transistor
Q3,4 Transistor
Q5 Transistor
Q6 Transistor
Q7 Transistor
Q8 Transistor
Q9 Transistor
Q10 Transistor
Q11 Transistor
Q12 Transistor
Q13 Transistor
Q14 Transistor
Q15 Transistor
Q16 Transistor
Q17 Transistor
Q20 Transistor
Q21,22 Transistor
Q23 Transistor
Q24,25 Transistor
Q100~102 Transistor
Q103,104 Transistor
Q105 Transistor
Q107 Transistor
Q108 Transistor
COMPONENTS DESCRIPTION
For Audio8V
BU_3.3V
Remote controller signal waveform shaping
μ-com reset voltage (3.5V) monitoring
For saving the settings
System control
NAVI interface waveform conversion (3.3 → 5V)
Audio signal selection (Main BT)
Audio volume control and audio signal selection
Audio signal selection (Main)
Audio signal selection (Sub)
For TVBOX audio signal
For KAB audio signal
TVBOX data signal waveform shaping
For RDS signal processing and demodulation
Power amplifi er for speaker output
Audio8V
P_CON output circuit
BU5V
Reverse detection circuit
Audio8V
BU5V
P_CON output circuit
Parking detection circuit
P_CON output circuit
SW5V circuit
ILLUMI detection circuit
ANT_CON output circuit
SW5V circuit
ANT_CON output circuit
BU detection circuit
Surge detection circuit
SW3.3V circuit
ACC detection circuit
SW14V circuit
ACC detection/KEY RESET
DET MUTE circuit (Trigger Bu-DET)
DET MUTE circuit (Trigger Reset)
TVBOX RESET
DET MUTE circuit (Trigger Bu-DET)
DDX5024/5034/5034BT/5034M/5054/514/54R
DNX5140/5240/5240BT/6000EX/6140
Operation / Condition / Compatibility
7