Harman Kardon HK BDS 270

Trouble shooting Chart
Remote control does not work
Remote control
does not work
Go
Check whether the remote
controller’s battery is
exhausted or not.
No
Replace the battery for remote
controller
Check the 2pi n FFC cable
from AM to BD board is
connect wenll
Yes
Reconnect the cable
No
Yes
Replace IR1
Check the IR60 1 power
supply is OK, IR1’3 is about
3.3V
Check the +3.3V net on front board
No
Yes
harman/kardon
BDS 270 + 570 Service Manual
Page 38 of 90