11
DDX6027/6027Y/7017
DDX7037/7047/7067
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC52
Power supply conversion IC
±
9.0V for 5V pre-out is generated from BU14V
IC54
3-terminal regulator IC
5V for video is generated from BU14V
IC100
Power IC
Power amplifier for speaker output
IC150
Operational amplifier
Audio mid-point electrical potential 3.3V, SVR voltage 6.8V buffer
IC151
Electrical volume and Selector IC
Audio volume control, audio signal selection
IC200
Operational amplifier
For 5V pre-out audio signal amplification (Front)
IC201
Operational amplifier
For 5V pre-out audio signal amplification (Rear)
IC202
Operational amplifier
For 5V pre-out audio signal amplification (Sub-woofer)
IC203
Isolation amplifier IC
For audio signal GND isolation (AVIN2)
IC204
Isolation amplifier IC
For audio signal GND isolation (AVIN1)
IC251
RDS decoder IC
For RDS signal processing and demodulation
IC300
Voltage detector
For
µ
-com resetting voltage monitoring
IC301
Logic IC (NOR)
Muting control for audio
IC303
Audio microcomputer
For X34 board control
IC400
Video switch
For video signal selection (R)
IC401
Video switch
For video signal selection (G)
IC402
Video switch
For video signal selection (B)
IC403
Synchronization separation IC
For NT/PAL recognition, AVIN/Rear camera auto detection
IC404
Video switch
Video signal selection (Synchronization separation)
IC405
Isolation amplifier IC
For audio signal GND isolation (TV)
IC406,407
Video switch
Video signal selection (For monitoring main unit)
IC408
Video switch
Video signal selection (For AVOUT)
IC413
Logic IC (Multiplexer)
For audio signal selection (For MAIN source)
IC414
Logic IC (Multiplexer)
For audio signal selection (For 2-ZONE sources)
IC415
Video switch
Video signal selection (For monitoring main unit)
Video signal selection (For AVOUT)
For audio signal GND isolation (LX)
For reversing resetting signal
Buffer for remote control signal for NAVI
Comes on when TUNER source is selected
Goes OFF when STANDBY source is selected
Controlling P-CONT circuit
Comes ON power supply voltage is about 8.8V or more.
Q13
For EXT-AMP control
Control of external amplifier
Q14
For surge voltage detection
Comes ON when Q15 is ON
Q15
For surge voltage detection
Comes ON when power supply voltage is about 20V or more
Q50
For
±
9V power supply
Comes ON when Q51 is ON
Q51
For
±
9V power supply
Comes ON when SW14V is ON
Q52
SW14V power supply SW
Comes on at P-ON
Q54
For BU5V power supply
COMPONENTS DESCRIPTION
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