Components Description - Kenwood DDX6027 Service Manual

DDX6027/6027Y/7017
DDX7037/7047/7067
VIDEO CONTROL UNIT (X14-957/958x-xx)
Ref. No. Application / Function
IC100 DC-DC power supply IC
IC101 DC-DC power supply IC
IC102 DC-DC power supply IC
IC103 Regulator IC
IC104 Regulator IC
IC108 Regulator IC
IC200 E2PROM
IC203 Motor driver IC
IC204 System microcomputer
IC205 Logic IC (AND)
IC206 Resetting IC
IC207 Logic IC (AND∗4)
IC301 Color differential signal 1H-DELAY
Color liquid crystal panel driving signal
IC303
processing IC
IC304 RGB switch
IC306 Logic IC (Inverter)
IC361 Logic IC (NAND)
IC362 PLL built-in synchronization separation IC
IC363 Logic IC (Buffer)
IC364 Logic IC (Buffer)
IC365 Logic IC (Mono-multi)
IC366 Logic IC (Inverter)
IC400 MOS-IC for on-screen display
IC401 FLASH ROM
IC402 Logic IC (NOR)
IC403 Logic IC (D-FF∗4)
IC404 Logic IC (Inverter)
IC405 Logic IC (AND)
IC406 Logic IC (OR)
IC500 Regulator
IC520 FLASH ROM
IC540,541 Logic IC (Inverter)
IC560 SDRAM
IC601 MPEG decoder
IC650 Video signal LPF + drive IC
IC651 Regulator
IC652 Video encoder
IC654 Video switch
8

COMPONENTS DESCRIPTION

SW5V/MECHA7V control
SW3.3V/MECHA7.5V control
BL8.5V, ±7V control
Backup 5V generation
Backup 3.3V generation
IC601 2V generation
Memory for µ-com
Tilt mechanism tilt control
For main unit control
AND for remote controller + wired remote-controlled
For resetting µ-com
For 3.3V → 5V conversion
For delaying color differential signal for 1H at the time of PAL
RGB signal generation for liquid crystal
For switching DVD signal and RGB signal coming from X34
For reversing blank signal coming from X35
HD signal reversal buffer
HD/VD generation from composite signal after synchronization separation
Buffer for HD signal
Buffer for VD signal
HD delaying for OSD-IC
For VD signal reversal
For displaying characters and patterns on the monitor screen
ROM for OSD-IC
For frequency dividing of clock for OSD-IC
For frequency dividing of clock for OSD-IC
For frequency dividing of clock for OSD-IC
For frequency dividing of clock for OSD-IC
For frequency dividing of clock for OSD-IC
DVD mechanism 5V generation
For MPEG decoder control program
For 27MHz oscillation
RAM for temporary storage of decoded signal
IC for decoding MPEG encoded signal
For DVD RGB/composite signal
For 5V generation
Conversion of digital video signal into analog signal
For switching composite signal from DVD composite signal and X34
Operation / Condition / Compatibility