Philips MCD2010/12/93 Service Manual page 28

no search from DVD
check if supply +12V of Decoding board is normal
Yes
check if laser head ass'y can light normally
No
check if tie wires of laser head ass'y
is loosen and broken
No
laser head ass'y broken
FLOW CHART NO.4
no image from DVD
check if video socket
No
check and change video wire socket
No display from display screen
check voltage of filaments transformer
is normal
No
check if the capacitor voltage of filaments filter is short circuit
No
check if display screen is broken
No
check if tie wire is broken
Yes
Yes
video wire is normal Yes
No
transformer is broken
Yes change display screen
Yes change tie wires
Troubleshooting
No
check steady circuit
Decoding board is broken
check and change good laser head ass'y
Decoding is broken
Yes
change capacitance
9-2