Remote control does Not work
Go
Yes
No
Yes
Remote control
does Not work
NO
Replace the battery for remote
controller
Check whether the remote
controller’s battery is
exhausted or Not.
Check the IR1 power
supply is OK,IR1.3 is
about 5V
Check the VCC net No front board
Yes
Trouble shooting chart
5-3
Check the IR output of
U2.1
Check the VCC of U2
Yes
Replace U2, IR1