Yes
Change POWER board
No sound No picture
Change
Mainboard
No
Yes
Change U1
No
- 41 -
Check if there is voltage
pressure in the J16 .
pin7/pin8
(
5V
),
pin12/pin13
(
12V
)
Check if the voltage
pressure of J16 Pin5 is high
voltage pressure (More than 2.5V)
Check if the voltage pressure of
LD23(1.2V), U104(1.8V),
LD22(3.3V),
Yes
Change UD9,U104 or UD8
No