Olympus BH2 Series - Display; 3-L Abnormal Display

B. TROUBLESHOOTING (B2-BDS-2)
No. B-5
3. Display
3-l Abnormal display
SW!03
T 1 0 1
LAMP
J3J2
UYPC65
JJ03
J201
JJ02
Causes
l.
Defective variable resistor RVlOl
2.
Defective UYPC65
3. Defective
UYPC64
4. Defective power supply part
* The display with LED is unstable when a lamp is burnt out or not mounted.
Be sure to mount a lamp and set the primary voltage selector switch SW103
(the 100/llSV selector switch in the lOOV channel and the 220/240V
selector switch in the 200V channel) to the appropriate position.
Is the variable resistor
RVlOl normal?
YES
NO
Replace the RVlOl.
Does the
display with LED
change with the adjustment
of
the
light intensity
control?
YES
. ~
NO
I
@ Measure the resistance between [l]
(brown) and @] (orange) of J201
with a multimeter. Normal if the
resistance value varies smoothly
from 0 to 2k~ when the light
intensity control lever is slid.
Abnormal if not. ~
'
Proceed the work according to
"No. J -7 4, Power Supply, []] "