Olympus B2-BDS-2 Troubleshooting & Adjustment Manual - Page 6
Browse online or download pdf Troubleshooting & Adjustment Manual for Microscope Olympus B2-BDS-2. Olympus B2-BDS-2 46 pages. For electrical base
Print Page
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
®
~