Kenwood KOS-V1000 Service Manual page 5

● VIDEO CONTROL UNIT (X14-982x-xx)
Ref No. Function
IC1 Power Management
IC2 Power Management
IC3 Power Management
IC4 Volutage Regulator
IC5,6 Power Management
IC100 Power Management
IC200,201 2-INPUT OR GATE
2-CHANNEL MULTIPLEXER/
IC202,203
DEMULTIPLEXER
IC204 Video Signal
IC205 TRIPLE NON-INVERTER
IC206 Video Driver
IC208 Video SW
IC209 MONOSTABLE MULTIVIBRATOR
IC210 INVERTER
IC211 Video interface
IC212 Video SW
IC213,214 Video SW
IC215 Video SW
IC216 EXCLUSIVE OR GATE
IC217 2-INPUT NOR GATE
IC218 Video Signal
IC219 MONOSTABLE MULTIVIBRATOR
IC220 2-INPUT NOR GATE
IC300 Voltage Detectors (RESET IC)
IC301 EEPROM
IC302 EEPROM
IC303 Microcomputer
IC304 2-INPUT OR GATE
IC305 TRIPLE NON-INVERTER
IC400 Differential 4ch Multiplexer
IC401 ISOLATION AMP
IC402 ISOLATION AMP
IC451 TRIPLE NON-INVERTER
IC600 Gain contol (E-VOL)
IC601 Audio Power Amplifi er
IC602 Differential 4ch Multiplexer
COMPONENTS DESCRIPTION
Reference Voltage Regulator (BU5V)
Three terminal Regulater (BU3.3V)
Three Outputs DC/DC Converter from a 3.3V or 5V Supply for designed use in TFT-LCD
panels (+11V,-11V,12.5V)
with Shut Down Switch (Adjustable Voltage) (M_V5V)
Three terminal Adjustable Regulater (V-5V,A8V etc)
Dual 5V/3.3V Step-Down DC/DC Converter 550kHz, 2Phase Synchronous Regulaters
(SW3.3V, SW5V)
level shift 3.3V → 5.0V
Synchronous Signal Separator and Detector, performs Horizontal and Vertical
synchronous signal from composit video signals, suitable for car navigation and LCD TV.
3 Buffer
3channel 75Ω driver with 6dB amplifi er
2-Input 1-Output 1-Circuit Video Switch Clamp, 6dB AMP, 75Ω Driver
Buffer
Video interface IC for a TFT-LCD, Automatic identifi cation of color system, Video/chroma
signal processor, Two RGB input lines (one for OSD)
5in, 3CTL,1out
2-Input 1-Output 3-Circuit Video Switch
2-Input 1-Output 1-Circuit Video Switch Clamp
No-adjustment Sync Separator
Power monitor for microcomputers and reset for CPUs (for system microcomputer)
8bit EEPROM for system µ-com
ROM CORRECTION
System Microcomputer
level shift 3.3V → 5.0V
3 Buffer
iPod out audio: select from USB_LR or iPod_LR
Ground Noise Isolation Amplifi er (for iPod Audio out)
Single isolation amplifi er developed by the video signal (for iPod Video out)
3 Buffer
6-channel multimedia approach
4×50W/4Ω Power Amplifi er (for KOS-500)
MAIN2 out audio: select from MAIN1 or SP-IN
KOS-V1000/V500
Description
5