No power
Check if the Power Cord
is connected
Check the AC
outlet
No sound
Check the speakers
are connected correctly
Check if the Main Board
has provided voltage
(Inductance L24)
Check if the Main Board
has provided voltage
(Inductance L24)
Check if the Main Board
has provided voltage
(Location C74/D7/L51)
Check if the Terminal
Boartd has provided
voltage(DC Socket)
Replace a new
one
Switch on the Timer
No display
Check if the Dc output
provided voltage
(about 34.5V)
Adjust the volume
Check the files or folders in
USB or others devices has
not exceeded the certain limit
Time/Clock does not work
Plug in the power cord
Reset the Time/Clock
No picture while HDMI connection
Check if the HDMI cable
is faulty
Replace a new
HDMI cable
Replace a new
Power Board
located in sub-
woofer
Check if the USB or other
devices are connected
Check if the USB or other
devices are incompatible
Check the data wire which
connected the Main Board,
if has provided voltage
Check the data wire which
connected the Main Board,
if has provided voltage
Check if the Transistors are
provided voltage
Q301/Q302
Check if has voltage
supply to the USB Board
Check if the CPU IC
has provided voltage
Check if the VFD Board
has provided voltage
No
Replace a new one
of Terminal Board
Replace a new one
of Terminal Board
No
No
Replace a new
DC Cable
No
Replace a
new one
No
Replace the IC PT6311
/SC16311/CD16311
No
No
Replace the
Main Board
No
Check if the CPU IC
has provided voltage
Replace the
Main Board
No
Change to ues
the new materials
No
Change to ues
the new materials
No
No
Check if the IC CX1117
has provided voltage
Replace a
new one
No
Check if the CPU IC
has provided voltage
Replace the
Main Board
No
Y
Y
Y
Y
Y
Y
Y
Y
Y
Malfunction Follow Check Chart
2-2
2-2
