Hisense HX32N2170WTS Service Manual page 35

2.Power Supply Trouble 1
Go to
check
Main
Check the rectifier
board
function
Non output, IR indicator light slake
Y
Check if 12V、19V（24V/
32V/50V） output normal
N
Check if FB 1 Open
N
Check EMI open or L N short
N
N
Check if EB1 voltage
about √2Vac
Y
Check if UB101PIN5
voltage is about 15V
Y
Check if output short
Check the power
Y
components
damage or not
Y
Change short
components
Check if RB101,
N Y
RB102,RB103
open
N
Change
UB101
Y
Change damaged
components
Change damage
resistors