Hitachi DS75MU01 Service Manual page 58

3. DIM
DIM (image overlap, focus or flicker)
Set to the optimal
frequency, select the
recommended frequency
Readjust the phase and pixel
clock in the user mode
Pull out signal cable and
check "Self Test Feature
Replace the main board
Reset in factory mode
NG
NG
NG
Check" is ok?
NG
NG
Replace the panel
OK
OK
The end
OK
The end
OK
OK
NG
OK
58
The end
Check the signal cable
and the PC
The end