Hitachi 42PD8900TA Service Manual page 39

Power
Power cannot be turned on (LED does not light)
Is
the input voltage
applied to Power supply unit ?
(CN61 (1),(3))
Yes
Are the
voltages applied to
CN63(1)pin and CNPPS(3)(8)pins
of Power supply unit ?
Yes
Check Subpower / FC PWB
42PD8900TA
No
AC inlet Main switch
(SW PWB)
No
[CN63] (1) +5V
[CNPPS] (3) +24V / (8) +10V
39
AC Fuse
Filter PWB
F902 T6.3AH 250V
Power supply unit
*Re-adjustment is reqired.
Plese refer to 'Power Unit
Vs,Va Adjustment' page.