三星CN18A显示器原理图
ANALOG PC DIGITAL PC DRAM OSD Scaller gmZ4S TMDS SiI161 ADC+PLL AD9884/ FMS 9884 LCD Panel I/F CLOCK MCU Setup Data & User I/F User Key Back Light Control Power Sequence Control CN17B* 1 2 11 10 12 3 4 5 6 7 8 9 CN302 1 2 11 10 12 3 4 5 6 7 8 9 GND GND BL_CNT BL_ON GND GND GND 14V_BL +5V GND 14V_BL 14V_BL GND GND BL_CNT BL_ON GND GND GND 14V_BL +5V GND 14V_BL 14V_BL CN1 INVERTER MAIN PCB 1 2 3 4 5 6 CN303 7 8 9 FUNCTION PCB KEY1 LED_G KEY2 LED_R GND KEY +5V +5V GND LED-A(18"),LED-B(17") LED-A(17"),LED-B(18") LED-A(17"),LED-B(18") 1 2 10 10 3 4 5 6 7 8 9 CN1 1 2 11 10 12 3 4 5 6 7 8 9 DDC_SCL DDC_SDA AGND RX1- RX1+ AGND AGND AGND AGND AGND RX2- RX2+ CN101 13 14 15 16 17 18 19 20 21 22 23 24 RX0+ AGND AGND AGND AGND RXC- RXC+ RX0- SELF RASTER_D AGND DDC POWER INPUT (+5V) CONNECTION SIGNAL OUTPUT(+5V) 1 2 10 3 4 5 6 7 8 9 GND GND GND NC SELF TEST GND GND CN100 11 12 13 14 15 GND H_SYNC DDC_DATA RED BLUE GREEN 1 2 3 IN 14V IN 14V GND CN300 DDC_CLK V_SYNC KEY1 LED_G KEY2 LED_R GND KEY +5V +5V GND LED-A(18"),LED-B(17") 5V 5V 5V NC 1 2 3 4 CN301 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 GND RxE3+ RxE3- RxEC+ RxEC- RxE2+ RxE2- GND GND GND RxE1+ RxE1- RxEO+ RxEO- RxO3+ RxO3- RxO2+ RxO2- RxO1+ RxO1- RxO0+ RxO0- RxOC+ RxOC- 24 26 27 28 29 25 30 NC NC TMDS DVI-I L SWITCH1 D-SUB H L SWITCH ANALOG H 13 13 CN100 #1 CH1 RMS =2.831V 10-2 Analog to Digital Converter & Digital Receiver Part Schematic Diagram PVCC_RX OVCC_RX AVCC_RX DVCC_RX ABLU(0:7) AGRN(0:7) ARED(0:7) BYRED(0:7) BGRN(0:7) BUVBLU(0:7) BCLK RXC+ RX1- RX0+ RX0- RXC- BHS BVS BCREF_DV RX2+ RX2- RX1+ 11 12 15 10 9 14 14 IC202 #44 CH1 RMS =2.185V 9 IC201 #49 CH1 RMS = 3.188V 10 IC201 #41 CH1 RMS =205mV 15 IC202 #46 CH1 RMS =2.757 V 11 IC201 #115 CH1 RMS =1.864V 12 IC201 #117 CH1 RMS = 695mV 10-3 Power & Panel Interface Part Schematic Diagram (CN17A*/ CN17B*) +3.3V +3.3V LCD+5V +A3.3V +3.3V 5 4 6 1 2 3 2 IC302 #11 CH1 RMS = 2.046V 3 IC302 #22 CH1 RMS = 4.999V 4 IC302 #54 CH1 RMS =2.989V 5 IC302 #55 CH1 RMS = 3.098V 6 IC302 #56 CH1 RMS = 2.621V 1 IC302 #26 CH1 RMS = 1.323V 10-4 Power & Panel Interface Part Schematic Diagram (CN18A*) 6 10 2 5 4 13 2 IC302 #11 CH1 RMS = 2.046V 4 IC302 #54 CH1 RMS =2.989V 5 IC302 #55 CH1 RMS = 3.098V 6 IC302 #56 CH1 RMS = 2.621V 13 CN100 #1 CH1 RMS = 2.831V 10-5 Scaler Part Schematic Diagram 16 17 18 16 IC400 #2 CH1 RMS = 2.462V 17 IC400 #5 CH1 RMS = 3.163V 18 IC400 #10 CH1 RMS = 3.154V 10-6 MCU Part Schematic Diagram 7 8 8 IC500 #31 CH1 RMS = 4.816V 7 IC500 #30 CH1 RMS =4.979 V
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