Hitachi 42HDF39 Service Manual page 16

Remote Control doesn't work
Remote controller doesn't work.
Try if another Remote
Controller works?
Check if batteries are
placed correctly?
Take off the back cover.
Check if the wire of PCB-IR
has been well connected to
the PCB-Main?
Change the PCB-IR
then check if it works.
Change PCB-Main then connect all
wires properly.
No
Yes
Yes
No
16
Yes
Replace the Remote
Controller.
No
Put new batteries to
the remote control
No
Connect the wire
properly.
Yes
Test
again