Olympus B2-BDS-2 Руководство по поиску и устранению неисправностей и настройке - Страница 37
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D.
TROUBLESHOOTING (B2-BDS-3)
No.
D-6
3.
Display
3-1
Abnormal display
CN!
U I 0 3
CN4
Causes
1.
Defective
2.
Defect'
i ve
3.
Defective
4.
Defective
Remove
the
electrical base.
®
Is the variable resistor
RlOl normal?
I
YES
NO
y
Replace the RlOl.
Does
the
display with LED
change with
the
adjustment
of the
light
intensity
control?
'
variable resistor RlOl
display PCB Ul03
secondary PCB
Ul02
power
®
supply part
Measure the
resistance
between CN4
CD
(brown)
and
CN4
(I]
(purple) in the
secondary
PCB Ul02
with
a multimeter.
Normal if
the
resistance value
varies
smoothly
from
0
to
2kn.
Abnormal if
not.