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N o
+ 1 2 V
O u t p u t
C h e c k
1 2 V
e x i s t s
?
Y e s
C h e c k
Q 7 0 3
w o r k s
n o r m a l l y
? ( V c e < 0 . 2 V )
Y e s
C h e c k
Q 7 0 2
w o r k s
n o r m a l l y
? ( V c e > 1 0 V )
Y e s
C h e c k
R 7 3 0
a n d
l a y o u t t r a c e .
N o
+ 5 V
o u t p u t .
C h e c k
+ 5 V - F i x
e x i s t ?
Y e s
C h e c k
Q 7 0 1
w o r k s
n o r m a l l y
? ( V c e < 0 2 V )
Y e s
C h e c k
Q 7 0 5
w o r k s
n o r m a l l y
?
Y e s
C h e c k
t h e
t r a c e
o f
+ 5 V .
P r o c e e d
N o
O u t p u t " .
Q 7 0 3
d a m a g e s
N o
r e p l a c e
t r a n s i s t o r .
Q 7 0 2
d a m a g e s
N o
r e p l a c e
t r a n s i s t o r .
P r o c e e d
N o
F i x
Q 7 0 1
d a m a g e s
N o
r e p l a c e
t r a n s i s t o r .
R e p l a c e
N o
M
O S F E T .
t o
" N o
1 2 V
a n d
n e w
a n d
n e w
t o
" N o
+ 5 V -
o u t p u t " .
a n d
n e w
n e w
P -
46
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