Hitachi 22LD4200UK - Block Diagrams

FRONT END BOARD
SCALER BOARD
POWER & AUDIO AMP BOARD
ITU656-8bit
Txt, RGB, FB
MAIN L,R
POWER REGULATORS
(2.5V, 3.3V, 5V, 8V, 12V, 14V & 33V)
AUDIO AMPLIFIER (2x 3W)
TUNER
IF PROCESSOR
VIDEO SWITCH
RGB SWITCH (2)
VIDEO PROCESSOR
AUDIO PROCESSOR
HP PRE-AMPLIFIER
AUDIO SWITCH
MICRO-CONTROLLER
SOFTWARE ROM
EEPROM
SCALER IC
OSD IC
2M x 32 SDRAM
TRIPLE ADC or DVI RECIEVER IC
LVDS TRANSMITTER IC
Selected
Video
37
22” TFT TV Service Manual
13. BLOCK DIAGRAMS