No Display On Led Board - Philips HTL2160C/G/M/S/T/W/12/F7/93 Service Manual

LED

no display on LED board

no display on
LED board
Check every
voltage on main board
whether normal or not
+18V +5V
Check every
voltage on front board
whether normal or not
+5V +3.3V .
Check every
voltage on the LED board
+5V +3.3V.
Check the led and transistor on the LED
board whether normal or not.
Go
supply
+3.3V
Yes
supply
Yes
supply
Yes
5-2
No
check the power supply board
No
check the FFC connector from
main board to front board
check the FFC connector from
No
LED board to front board
Trouble shooting Chart