XOCECO LC15YS031, Service Manual

Page: 23 / 47

21
5. Check flow of the power board:
Power board damages
or fuse blows
Replace the fuse and check
whether N901, D501
breakdown
Replace N501, D501
Check whether C512 has 18V Replace D502
Check whether pin1 of N501 has
wave
Replace
N502
Check whether N502 is damaged
Replace
N505 Check whether N505 is
damaged
Check whether N505, D507 is
damaged
Replace the damaged
parts
Y
Y Y
N
Y
N
Y
N
Y
N
N
Y