Philips MCD712, Service Manual

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Not power
Check if the Power Cord
is connected properly
Check if there is
power at the AC outlet
Not sound
The speakers are
connected correctly
Check if the Main Board
has been provided voltage
Check if there is output
voltage at the AMP
Board
Check if there is output
voltage at the Main Board
Replace a new
one
Switch to the Timer
No display
Check if the Dc output
voltage is about 27V
Adjust the volume
Check the files or folders in
USB or other devices do not
exceed the certain limit
Time/Clock does not work
Plug in the power cord
Reset the Time/Clock
Not picture on HDMI connection
Check if the HDMI cable
is usable
Replace a new
HDMI cable
Replace a new
AMP Board
Check if the USB or other
devices are connected
Check if the USB or other
devices are compatible
Check if the data wire which
connected to the Main Board
has been provided voltage
Check the data wire which
connected the Main Board,
if has provided voltage
Check if the Transistors
have been provided voltage
Check if there is voltage
supplied to the USB Board
Check if the CPU IC
has provided voltage
Check if the VFD Board
has been provided voltage
N
Replace a new
Main Board
N
N
Replace a new
Power Adapter
N
Replace a
new one
N
Replace the IC PT6311
/SC16311/CD16311
N
N
Replace the
Main Board
N
Check if the CPU IC
has provided voltage
Replace the
Main Board
N
Change to ues
the new materials
N
Change to
uesable one
N
Check if the IC CX1117
has provided voltage
Replace a
new one
N
Check if there is
voltage at the CPU IC Replace the
Main Board
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Malfunction Follow Check Chart
3-2 3-2