Service manual

22
BLOCK DIAGRAM
15pin DSUB -Connector
Buffer
74ACT14
PRE-AMP
Controller
ADC
PLL
Scaling
MIU
OSD Mux
Dithering
CPU I/F
Odd/
Even
MUX
SDRAM (16Mbit*2)
Micom
DC-DC converter&
on-off control
12V(3A)AdapterAC IN(100 ~ 230V)
DC-AC Inverter
Panel S,G Driver
Back light
panel
From PC
H/V
sync
RGB signal
RED (8)
Green(8)
Blue(8)
I2C
address/data line
EEPROM
24C08
Data line/Address
line/contorl line
Dot clk
Red(6)
Green(6)
Blue(6)
Hs,Vs,DE,LCLK
630VAC/ 62khz
Hs,Vs
Hsync,Vsync
clk
Offset/Corse
-Clock timing&
phase
-Current &resistance
3.3V/5V/12V
Main Borad
TDA8752
Mx88LC284FC
12V/ On-Off
DDC I2C
12V
Dimming
Control Board
L500B1 BLOCK DIAGRAM
I2C