Olympus BH2 Series - Page 11

A. TROUBLESHOOTING (B2-BDT)
No. A-7
3. Display
3-l Abnormal display
UYCP15
UYPC48
Causes
l. Defective UYPC48
2. Defective variable resistor RVlOl
3. Defective power supply part
@) Is the OV LED lit when the
main switch is turned on?
®
®
YES
'
0
NO
Does the 2V - 7 V LEDs change
with the adjust ment of the
light
intensity control?
YES
~
NO
Is the variable
resistor
RVlOl normal?
YES
NO ?
Replace the RVlOl.
Does the 2V - 7V LEDs change
with the adjustment of the
light intensity control?
YES f
~r~-N_O ________ ~
Replace the UYPC48.
®
®
Does
the 2V -
7V LEDs change
with the adjustment of the
light intensity control?
~
YES
Replace
the
UYPC48.
NO
Proceed
the
work according to
"No.
A-8 4.
Power Supply".
0 2 4 6 7
DDDDD
LED display
Normal if the resistance value
between @] (orange) and ~ (blue)
varies smoothly in 0 to 500~ when
the light intensity control lever
is slid with the Jl02 removed.
Abnormal if not.