Philips MCD2010/12/93, Service Manual

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