Olympus BH2 Series - 3 Display; Abnormal Display

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 ' ive
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.