Akai LC27HAB, Руководство по обслуживанию

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PCB function
1. Power:
(1). Input voltage: AC 100V~240V, 47Hz~63Hz.
Input range: AC 90V(Min)~264V(Max) auto regulation.
(2). To provide power for PCBs.
a). +24V for Inverter.
b). +5Vsb for standby,
c). +5V for signal power,
d). +24V for Audio Amp power and converter to
e). +12V for Tuner power.
2. Main (Video InterFace) board:
(1).Decoder the video signal (TV,CVBS,S-VIDEO) from analog to digital
signal.
(2).Converter the Video signals( TV,CVBS,S-VIDEO ) and graphics signal
(VGA,YPbPr) from internace to progressive,
(3). Converter the Digital to fit the panel display mode and output the LVDS
signal to Panel.
3. Tuner & Audio Board
:
(1)
Convert TV RF signal to video and audio signal to Main board.
(2 ). Decoder the TV SIF signal to audio signal,
(3 ). Converter the audio to audio Ampifile and out put to the speaker.
4. KEYBOARD
To get the main button control on LCD_TV as SOURCE,MENU,
,CHANEL -, VOL +,VOL-, STANDBY functions.
5. Remote control board
Receive the remote signal and active for the control.
6. T-CONTROL board
Converter the LVDS signal to the digital signal for fitting the PANEL.
7. INVERTER board
Converter the low DC v24V to high AC voltage to drive the backlight.