Sanyo XT-24S7000F - Page 38

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