CAS Scale EC-II - Troubleshooting Guide; Scale Fails to Power On

Ⅱ. To solve the trouble
1．The scale can not be powered on
Y N
N Y
Y
Y
N
N
N
Y
N
Scale can not
b
e
p
owered on.
Connect the scale
with AC
p
ower.
Check if the AC
li
g
ht is on.
The output voltage
of L7808 is 8V.
L7808 is damaged,
re
p
lace it.
Check the output
voltage of adapter
is about 17V.
The AC jack (for
adapter) is
damaged, replace
it.
The adapter is
damaged. Please
replace it.
Check if there is
power output from
the audion T5.
Check if the
voltage value
between the pins of
oscillator CR1 is
0.20v.
The problem is in
main board, replace
it
.
The audion T58550
or T118050 is
damaged.
The oscillator is
damaged. Replace
it.
The problem can be
solved.
Replace the CPU.