Kenwood DDX6027Y Service Manual page 11

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Ref. No. Application / Function
IC52 Power supply conversion IC
IC54 3-terminal regulator IC
IC100 Power IC
IC150 Operational amplifier
IC151 Electrical volume and Selector IC
IC200 Operational amplifier
IC201 Operational amplifier
IC202 Operational amplifier
IC203 Isolation amplifier IC
IC204 Isolation amplifier IC
IC251 RDS decoder IC
IC300 Voltage detector
IC301 Logic IC (NOR)
IC303 Audio microcomputer
IC400 Video switch
IC401 Video switch
IC402 Video switch
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IC403 Synchronization separation IC
L 13942296513
IC404 Video switch
IC405 Isolation amplifier IC
IC406,407 Video switch
IC408 Video switch
IC413 Logic IC (Multiplexer)
IC414 Logic IC (Multiplexer)
IC415 Video switch
IC416 Video switch
IC500 Isolation amplifier IC
IC501 Logic IC (Inverter)
IC502 Logic IC (Buffer)
Q6 ANT-CONT SW
Q7 P-CONT SW
Q8~11 For P-CONT circuit control
Q12 BU detection SW
Q13 For EXT-AMP control
Q14 For surge voltage detection
Q15 For surge voltage detection
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For ±9V power supply
Q50
For ±9V power supply
Q51
.
Q52 SW14V power supply SW
Q54 For BU5V power supply
COMPONENTS DESCRIPTION
±9.0V for 5V pre-out is generated from BU14V
5V for video is generated from BU14V
Power amplifier for speaker output
Audio mid-point electrical potential 3.3V, SVR voltage 6.8V buffer
Audio volume control, audio signal selection
For 5V pre-out audio signal amplification (Front)
For 5V pre-out audio signal amplification (Rear)
For 5V pre-out audio signal amplification (Sub-woofer)
For audio signal GND isolation (AVIN2)
For audio signal GND isolation (AVIN1)
For RDS signal processing and demodulation
For µ-com resetting voltage monitoring
Muting control for audio
For X34 board control
For video signal selection (R)
For video signal selection (G)
For video signal selection (B)
For NT/PAL recognition, AVIN/Rear camera auto detection
Video signal selection (Synchronization separation)
For audio signal GND isolation (TV)
Video signal selection (For monitoring main unit)
Video signal selection (For AVOUT)
For audio signal selection (For MAIN source)
For audio signal selection (For 2-ZONE sources)
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.
Control of external amplifier
Comes ON when Q15 is ON
Comes ON when power supply voltage is about 20V or more
Comes ON when Q51 is ON
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Comes ON when SW14V is ON
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Comes on at P-ON
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8
Operation / Condition / Compatibility
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3 6 7 1 3 1 5
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DDX6027/6027Y/7017
DDX7037/7047/7067
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0 5 8 2 9 9 4 2 8
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9 9
9 9
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