Kenwood DDX512 Service Manual page 7

Ref. No. Application / Function
Q107 SW
Q202 BUFFER
Q203 BUFFER
Q204 BUFFER
Q205 SW
Q206 SW
Q207 SW
Q301,302 SW
Q303 SW
Q651 SW
Q652 SW
Q653,654 SW
Q681 BUFFER
● 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
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
COMPONENTS DESCRIPTION
DC/DC SW FET (V6V)
RGB signal R
RGB signal G
RGB signal B
RGB signal MUTE R
RGB signal MUTE G
RGB signal MUTE B
KAB_RX error connection protection
For KAB_TX control
DVD AUDIO MUTE L-CH
DVD AUDIO MUTE R-CH
DVD AUDIO MUTE control
SPDIF OUTPUT BUFFER
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 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
DDX5022/5022Y/5032/5032M/512/52RY
DNX5120/512EX/5220/5220BT
Operation / Condition / Compatibility
Operation / Condition / Compatibility
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