Advertisement
No power
check whether the power consumption of
adapter is 12V
fuse F501 is broken
Whether there is 5V voltag on feet5 of
yes
IC202 or IC701 is
broken
No power no opening
yes
no
whether cathode has
been supplied 12V
yes
Q501
drain
electrode
has
more
than
10V
yes
Whether
5V
output from Feet 2
of IC502
yes
Whether there is 5V
voltage on Feet 8
of IC301
IC301 is broken
no
Components R524 IC504 C705
C706 broken
no
Less
than 5V
no
Outer electrocircuit of Q503,&Q502 ,CPU
and related power supply out of work
no
is
components IC02
L501 D505 broken
no
components L507
C507 C510 C511 broken
the adapter is broken
D500 and C501
is abnormal
R515
L503
2
Advertisement
