Hisense AMS-07UR4SNVT4 Service Manual page 166

6 TROUBLE
6 TROUBLE
6-1. Service flow chart
Switch on the power
supply
Does the screen display
normally?
No
Is the fuse
( 3.15A/250V) blown?
No
Are the wires poorly
connected?
No
Check the input voltage and output
voltage correct or not
The input voltage(power input):220V
The output voltage(IC902):
Pin1-pin2:12V
PIN3-PIN2:5V
No
Indoor control board is fault
Replace it.
SHOOTING
SHOOTING
Yes
Yes
Yes
Make sure all wires
are connected
correctly
Replace
Yes
the
display
board
Does it receive the
remote controller
signal?
No
Is the remote
controller in good
condition?
Yes
Replace the
display board
Replace the indoor
control board
Is the remote
Yes
controller
setting right?
Yes
Check the error
code
No
Replace the batteries
Retry remote operation.
If not good, replace
controller
remote