12
KVT-817DVD/827DVD/827DVDY
KVT-837DVD/847DVD/867DVD
Ref. No.
Application / Function
Operation / Condition / Compatibility
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)
IC416
Video switch
Video signal selection (For AVOUT)
IC500
Isolation amplifier IC
For audio signal GND isolation (LX)
IC501
Logic IC (Inverter)
For reversing resetting signal
IC502
Logic IC (Buffer)
Buffer for remote control signal for NAVI
Q1
For fan 11V power supply
Comes ON when Q2 is ON
Q2
For fan 11V power supply
Comes ON when Q3 is ON
Q3
For fan 11V power supply
Comes ON when SW5V is ON
Q4
For fan 11V power supply
For controlling output voltage
Q6
For ANT-CONT SW
Comes on when TUNER source is selected
Q7
For P-CONT SW
Goes OFF when STANDBY source is selected
Q8~11
For P-CONT circuit control
Controlling P-CONT circuit
Q12
BU detection SW
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
SW 14V power supply SW
Comes on at P-ON
For DSP digital 8V power supply
Comes ON when SW14V is ON
Comes ON when SW14V is ON
For DSP digital 8V power supply
BU 14V
→
8V for audio is supplied
For DSP analog 8V power supply
BU 14V
→
Supply DSP analog 8V
Comes ON when SW14V is ON
Q62
SW 5V power supply SW
Comes ON at P-ON
Q63
For SW 5V power supply
BU 5V
→
SW 5V is supplied
Q64
For V5V power supply
BU 14V
→
5V for video is supplied
Q65~70
For
±
9V power supply
Q150
SVR6.8V, Audio 3.3V,
Comes ON when SW14V is ON
IC150 power supply SW
Q151
For SVR voltage reduction control
Electric current control of SVR voltage reduction circuit
COMPONENTS DESCRIPTION
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