Olympus BH2 Series - Page 6

A. TROUBLESHOOTING (B2-BDT)
No. A-2
2. Lamp
2-l Lamp is not lit.
UVPC48
Causes
l.
Burnt lamp
2. Defective
transistor QlOl
3.
Defective
UYPC48
4. Defective
lamp socket
5.
Defective
variable resistor RVlOl
6.
Defective power
supply part
0
Is the OV LED lit when
the main switch lS
turned ON?
0
NO
Does the 2V -
7V LEDs change
YES
with the adjustment of the
0
Does
the 2V - 7V LEDs
light intensity control?
change with the adjust- YES
ment of the
light
Replace the
intensity control?
NO
y
UYPC48.
'
Proceed the work according to
"No.
A-8 4.
Power Supply".
NO
YES 9
@
Is the variable resistor RVlOl
Remove the lamp socket. normal?
YES
~©
NO
Is the lamp conducting?
Replace the
RVlOl.l
(Resistance
at both
ends
of the lamp
~ om
f YES
~®
Is the
lamp lit?
I
0
®
~