Philips 231P4UPES/00 Service Manual page 43

3. DIM
DIM (image overlap, focus or flicker)
Reset in factory mode
NG
Set to the optimal
frequency, select the
recommended frequency
NG
Readjust the phase and
pixel clock in the user mode
NG
Pull out signal cable
and check "Self Test
Feature Check" is ok?
NG
Replace the main board
NG
Replace the panel
OK
Meridian 4
OK
The end
OK
The end
OK
The end
OK
Check the signal cable
and the PC
NG
OK
The end
43