System Contrl Block Diagram - LG LST-3100A Service Manual

2. SYSTEM CONTRL BLOCK DIAGRAM

IC207
I2C Ext.
(82B715)
IC105
EEPROM
(25LC256)
IC206
DVI Transmitter
(Sil 170)
TUNER VSB IC
TUNER PLL
NIM TUNER
IC203
RS-232C
Front Panel I/F
IC108
IC109
SC
L
SDA
I2C1
SC
SC
L
SDA
I2C2
L
SDA
PCA9516
SDA I2C3
SCL
SCL
SDA
I2C4
IC102
RS232 Driver
(MAX232)
RX, TX
RX, TX
CS, CLK, DATA_WR,
DATA_RD, IR_DATA
DQM0/DQM1/WE/CA
Sys Reset
S/RAS/CLK/CKE
(KIA7029 &
74HC14)
IC103, IC104
WE OE
IC101
FLASH ROM
(512Kx16b)
A[2-20]
DATA BUS[16-31]
WAIT
OE
WE
CPU
ADDRESS BUS[1-23]
GCS0
GCS1
GCS6/SCS0
DATA BUS[0-15]
A[2-20]
FLASH ROM
(512Kx16b)
IC100
WE OE
3-42 3-43
DQM0/DQM1/WE/CA
S/RAS/CLK/CKE
SDRAM
IC200
(8Mx16b)
IC107
Addr[23,22,13-2]
READY
WE
WE
ST
CS
DMA control
Addr[23,22,13-2]
SDRAM
(8Mx16b)
IC106
DQM0/DQM1/WE/CA
S/RAS/CLK/CKE
B
HD2