LG LST-4200A Service Manual - Page 50
System Control Block Diagram
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5. SYSTEM CONTROL BLOCK DIAGRAM IC300 I2C Ext. (82B715) IC106 EEPROM (25LC256) IC302 DVI Transmitter (Sil 170) TUNER VSB IC TUNER PLL NIM TUNER IC500 RS-232C Front Panel I/F SCL SDA SCL SDA SDA SCL SCL SDA IC102 I2C1 IC110 SCL I2C2 SDA PCA9516 I2C3 I2C4 WAIT OE WE CPU GCS0 GCS1 WE OE IC104 FLASH ROM (512Kx16b) DQM0/DQM1/WE/CA S/RAS/CLK/CKE A[2-20] SDRAM (8Mx16b) IC108 Addr[23,22,13-2] DATA BUS[16-31] WE ADDRESS BUS[1-23] IC105 RS232 Driver RX, TX (MAX232) RX, TX CS, CLK, DATA_WR, DATA_RD, IR_DATA Sys Reset (KIA7029 & 74HC14) IC100, IC101 GCS6/SCS0 DATA BUS[0-15] DMA control A[2-20] Addr[23,22,13-2] DQM0/DQM1/WE/CA S/RAS/CLK/CKE FLASH ROM (512Kx16b) IC103 WE OE SDRAM (8Mx16b) IC107 DQM0/DQM1/WE/CA S/RAS/CLK/CKE IC200 READY WE ST B HD2 CS 3-45 3-46
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