Components Description - Kenwood KVT-512DVD Service Manual

● VIDEO CONTROL UNIT (X15-110x-xx)
Ref. No. Application / Function
IC1 3-terminal regulator
IC2 3-terminal regulator
IC3 DC/DC converter IC
IC4 DC/DC converter IC
IC5 Motor driver
IC6 Motor driver
IC7 3.3V regulator
IC8 Buffer for remote controller
IC9 System μ-com IC
IC10 E2PROM
IC12 Voltage detector
IC13 OR
IC351 POWER IC
IC354 VIDEO ISO AMP
IC355 RDS decoder IC
IC356 AND*4
IC357 Electronic volume IC
IC358 AV SWITCH
IC361 VIDEO SELECTOR
IC401,402 INVERTER
IC551 IR remote controller photoreceptor
IC601 VIDEO AMP
IC602 VIDEO AMP
IC651 AUDIO DAC
IC652 OP-AMP*2
IC691 INVERTER
IC692 AND
IC701 MPEG DECODER
IC702 64M FLASH
IC703,704 128M SDRAM
IC705 Regulator
IC801 USB HOST CONTROLLER
Fixed Current Limit
IC804
Power Distribution Switch
IC805 Regulator
IC806 Regulator
IC807 D-TYPE LATCH X 8
IC851 COPROCESSOR
Q1 SW
Q2 SW

COMPONENTS DESCRIPTION

9V→5V regulator
For AUDIO8.5V
MECHA7.5V/D5V control
USB5V/D3.3V control
Slide
Tilt
TC3.3V
Remote controller signal waveform shaping
System control
For saving the settings
μ-com reset voltage (3.5V) monitoring
For VMUTE
Power amplifi er for speaker output
IPod video signal
For RDS signal processing and demodulation
KAB IF 3.3V→5V LEVEL SHIFT
AUDIO -VOL_CTL/SIG_SELECT
7-input/3-output AUDIO and 6-input/3-output VIDEO
DVD_BE and NAVI_RGB SELECT
TV_SDATA OUT BUFFER
Remote controller signal detection
DVD_BE COMPOSITE SIG LPF/BUFFER
DVD_BE RGB SIG LPF/BUFFER
DVD_BE AUDIO D/A CONVERTER
DVD_BE AUDIO LPF
SPDIF OUT BUFFER
For DVD_BE IC RESET_SIG
DVD/USB MPEG DECODER
FLASH MEMORY (MP 4Z4) for MPEG DECODER
SDRAM for MPEG DECODER
3.3V→1.8V regulator for MPEG DECODER
2PORT (External/GARMIN navigation) USB HOST CONTROLLER
Large current distribution switch for USB
5V→3.3V regulator for USB
SW3.3V→1.8V regulator for USB
Address latch for USB H/C
IPOD AUTHENTICATION
REVERSE detection
PARKING detection
KVT-50DVDRY/512/522DVD
/522DVDY/532DVD/532DVDM
Operation / Condition / Compatibility
7