Olympus Bh2 series Guide



Scannedforpersonal,non‐businessuseonly

September20,2018

OLYMPUS

RESEARCH

MICROSCOPES

BH2

SERIES

TROUBLESHOOTING

&

ADJUSTMENT

MANUAL

FOR

ELECTRICAL BASE

B2-BDT,

B2-BDS-2,

B2-BDS-3

OLYMPUS

INTRODUCTION

Three

types

of

electrical

base,

B2-BDT/B2-BDS-2/B2-BDS-3

are

available

for

the

BH2

Series.

Refer

to

the

manuals

for

each

model.

• B2-BDT

is

used

commonly

for

BHT,

BHTU

and

BHTM.

•

B2-BDS-2

and

B2-BDS-3

are

used

commonly

for

BHS,

BHSU

and

BHSP.

The

difference

between

B2-BDS-2

and

B2-BDS-3

is

described

in

"Hints

for

Using

This

Manual"

in

the

manual.

GENERAL

CONTENTS

•

Troubleshooting

for

B2-BDT

..........................

Section

A

•

Troubleshooting

for

B2-BDS-2

Section

B

•

Adjustment

for

B2-BDS-2

.............................

Section

C

•

Troubleshooting

for

B2-BDS-3

.............•..........

Section

D

•

Adjustment

for

B2-BDS-3

.............................

Section

E

A.

TROUBLESHOOTING

(B2-BDT)

CONTENTS

1.

Hints

for

Using

This

Manual

.........•.................

No.

A-1

2.

Lamp

2-1

Lamp

is

not

lit

No.

A-2

2-2

Light

intensity

adjustment

fails.

.

.................

.

No.

A-4

2-3

Lamp

flickers.

.

....................................

No.

A-5

2-4

Lamp

burns

out.

.

...................................

No.

A-6

3.

Display

3-1

Abnormal

display

...................................

No.

A-7

4.

Power

Supply

4-1

Power

is

not

supplied

even

after

the

main

switch

is

turned

on.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

No.

A-8

5.

Circuit

Diagram

.......................................

No.

A-12

A.

TROUBLESHOOTING

(B2-BDT)

l.

Hints

for

Using

This

Manual

This

manual

is

written

in

the

flowchart

format.

Follow

the

arrow

mark

to

find

out

a

defective

part.

The

numbers

and

symbols

like

[I] ,

~

indicate

the

numbers

of

connector

and

pin.

"Refer

to

the

waveform

of

JJ

~

"

means

"Connect

HOT

to

l

and

GND

to

2

when

using

a

multimeter

or

an

oscilloscope".

* "

0-

[I]

"

means

"Connect

HOT

to

2

and

GND

to

l".

GND

+A

reference

voltage,

OV,

in

an

electronic

circuit.

HOT

+ A

line

to

apply

a

supply

voltage.

The

symbols

like

@

and

@

mean

"Jump

to

@

and

@

in

the

same

i

tern"

.

The

symbols

@

and

@

mean

"Proceed

the

work

according

to

the

check

methods

@

and

QV

given

in

the

same

item".

No.

A-1

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

®

~

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-3

®

Replace

the

lamp.

Is

the

lamp

lit

?

YES

NO

+-----!B

Are

the

lamp

socket

terminals

conduc

ting

wi

th

the

lamp

set

on

the

lamp

socket?

YES

NO

Rep

lace

the

lamp

socket.

Is

the

lamp

lit?

YES f

~f-C--

N_o

__

_

the

transistor

QlOl

norma

l?

YES

NO

Replace

the

QlOl

Is

the

lamp

lit?

Replace

the

UYPC48.

@,,

__

0 2 4 6 7

ODD

DD

LED

displa

y

Normal

if

the

resistan

ce

value

between

@]

(orange)

and

~

(blue)

varies

smoothl

y

from

0

to

500~

when

the

light

intensit

y

control

lever

is

slid

with

the

Jl02

removed.

Abnormal

if

not.

~

Normal

if

0.6V

or

greater

voltage

is

generated

between

the

base

(yellow)

and

the

emitter

(brown)

o f

QlOl

when

measured

with

a

multimeter

with

the

light

intensit

y

control

lever

set

to th

e

Max.

position.

Abnormal

if

the

voltage

is

lower

than

0.6V

.

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-4

2-2

Light

intensity

adjustment

fails.

®

I

SUlOl

SU102

L_

______

c_h_a_n_~

TlOl

UVPC4B

Causes

l.

Defective

variable

resistor

RVlOl

2.

Defective

transistor

QlOl

3.

Defective

UYPC48

Is

the

variable

resistor

RV-101

normal?

YES

NO

Replace

the

RVlOl.

Is

the

lamp

light

intensity

adjustable?

j_

YES

t

I

NO

(END

l

Is

the

transistor

QlOl

normal?

1

YES

NO

Replace

the

QlOl.

I

Is

the

lamp

light

intensity

adjustable?

YES)

~)

NO

Replace

the

UYPC48.

®

Normal

if

the

resistance

value

between

0J

(orange)

and

~

(blue)

varies

smoothly

in

0

to

500~

when

the

light

intensity

control

lever

is

slid

with

the

Jl02

removed.

Abnormal

if

not.

@

Normal

if

0.6V

or

greater

voltage

is

generated

between

the

base

(yellow)

and

the

emitter

(brown)

of

QlOl

when

measured

with

a

multimeter

with

the

light

intensity

control

lever

set

to

the

Max.

position.

Abnormal

if

the

voltage

is

lower

than

0.6V.

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-5

2-3

Lamp

flickers.

Causes

l.

Contact

failure

of

the

lamp

stained

contact

in

the

lamp

2.

Defective

variable

resistor

®

3.

Defective

transistor

4.

Defective

UYPC48

Check

the

lamp

socket

(mainly

the

contact

with

the

lamp).

QlOl

If

the

contact

is

stained,

clean

it

and

check

if

the

lamp

is

normally

lit.

~YES

i

NO

@

Is

the

variable

resistor

I

RVlOl

normal?

J

6

YES

NO

'

Replace

the

RVlOl

Is

the

lamp

normally

lit?

YES

' )

NO

(§)

@

Is

the

transistor

QlOl

normal?

~

YES

....

®

NO

®

@

UVPC48

caused

by

the

socket

RVlOl

Remove

the

lamp

and

screw

from

the

lamp

socket,

and

check

the

contact

with

the

lamp

for

any

stain.

(Take

care

not

to

fly

the

spring.)

*

Don't

touch

the

lamp

by

a

bare

hand.

*

Avoid

opening

the

contact

excessively.

The

contact

will

be

broken

.

Normal

if

the

resistance

value

between

@]

(orange)

and

~

(blue)

varies

smoothly

in

0

to

500~

when

th

e

light

intensity

control

lever

is

slid

with

the

Jl02

removed.

Abnormal

if

not.

Normal

if

0.6V

or

greater

voltage

is

generated

between

the

base(yellow)

and

the

emitter

(brown)

of

QlOl

when

measured

with

a

multimeter

with

the

light

intensity

control

lever

set

to

the

Max.

position.

Abnormal

if

the

voltage

is

lower

than

0.6V.

A.

TROUBLESHOOTING (B2-BDT)

Replace

the

QlOl.

Is

the

lamp

normally

lit?

YES

•

~~N-0-----1B

Replace

the

UYPC48.

2-4

Lamp

burns

out.

S\J

101

S\J

102

F101

~

channe~

T101

Causes

No.

A-6

UVPC4B

l.

Defective

transistor

QlOl

2.

Defective

UYPC48

@

Is

the

transistor

QlOl

normal?

NO

l

YES

0---------,

t

I

Replace

the

QlOl.

I

Is

the

lamp

lit?

I

YES

-t

~NO

I

Replace

the

UYPC48. J

G0

Normal

if

0.6V

or

greater

voltage

is

generated

between

the

base

(yellow)

and

the

emitter

(brown)

of

QlOl

when

measured

with

a

multimeter

with

the

light

intensity

control

lever

set

to

the

Max.

position.

Abnormal

if

the

voltage

is

lower

than

0.6V.

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

- 7V 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.

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-8

4.

Power

Supply

4-1

Power

is

not

supplied

even

after

the

main

switch

is

turned

on.

UVCP15

l.

Defective

2.

Defective

3.

Defective

4.

Defective

5.

Defective

6.

Defective

7.

Defective

8.

Defective

®

Is

the

AC

cord

(UYCP)

conducting?

NO

Replace

the

Is

power

supplied

normally?

YES

NO

Is

the

main

fuse

FlOl

conducting?

NO

Replace

the

SIJ102

JI02

UVPC48

Causes

diode

bridge

DBlOl

transformer

TlOl

main

fuse

FlOl

(200V

channel)

AC

cord

(UYCP15 (lOOV

channel))

AC

inlet

main

switch

SWlOl

primary

voltage

selector

switch

SW102

UYPC48

®

Normal

if

the

terminals

illustrated

below

are

conducting.

200V

channel

only

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-9

Is

power

supplied

normally?

YES

~

NO

@)

Is

the

output

of

the

transformer

TlOl

normal?

YES

NO

9

~

@)

Is

the

primary

side

input

of

the

transformer

TlOl

normal?

YES

<

NO

@

Is

the

AC

inlet

JlOl

normal?

YES

<

NO

Replace

the

JlOl

.

Is

power

supplied

normally?

YES

ubo

t~O

®

Is

the

main

switch

SWlOl

normal?

YES

NO

I

Replace

the

SWlOl.

I

l

Is

power

supplied

normally?

I

YES

~~>.N_o

____________

~

D

QV

Normal

if

AC

9V

is

generated

when

measured

with

a

multimeter

at

the

input

terminal

of

the

diode

bridge

DBlOl

.

I

Replace

I

the

TlOl.

I

•

I

Is

power

supplied

normally?j

@

YES

~

NO

c

Check

the

input

voltage

bet

terminal

of

the

primary

sid

selector

switch

SW102

(blue

purple

wires)

and

the

termi

the

main

switch

SWlOl

(whit

1.

When

the

input

voltage

(AC220V)

ween

the

e

voltage

and

nal

4

of

e

wire).

lS

AClOOV

Check

if

AClOOV (AC220V)

is

detected

between

the

up

rple

wire

of

the

SW102

and

the

terminal

4

(white

wire)

of

the

SWlOl.

2.

Check

if

AC115V (AC240V)

is

detected

between

the

blue

wire

of

the

SW102

and

the

terminal

4

(white

wire)

of

the

SWlOl.

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-10

QD

Is

the

primary

side

voltage

selector

with

SW102

normal?

®

f

YES

0---------,

NO

t

I

Replace

the

SW102.

Is

power

supplied

normally?

~-NO-

Is

the

output

of

the

diode

bridge

DBlOl

normal?

YES

NO

Replace

the

DBlOl.

Is

power

supplied

normally?

YES

•

.----0

NO

(

END)

Replace

the

UYPC48.

Black

@

Are

the

terminals

of

the

AC

inlet

JlOl

and

the

main

switch

SWlOl,

GND

(WlOl)

conducting?

GND

4

I

®

Normal

if

the

resistance

values

between

the

terminals

of

the

main

switch

SWlOl

are

as

shown

below

when

measured

with

a

multimeter.

3

I

' 4

~

I

,..,

c.

ON

l OFF

ON

2 OFF

ON

3 OFF

0-+

Conducting

X+

Opened

2 3 4

o·6 6

X X X

6 6

X 0

X

!::::.

-+

l5

r2

Q)

Remove

the

SW102

and

check

it

for

continuity.

Normal

if

it

is

as

shown

below.

Record

the

wire

colors

connected

to

each

terminal.

Black

-+

COM

Purple

-+ lOOV

(220V)

Blue

-+

llSV

(240V)

-----------

Black

Purple

Q)

lOOV(220V)

Blue

Purple

;::1

rl

X X

a:!

llSV

(240V)

0 X

.I<:

l00V(220V)

0

u

nj

rl

ll5V(240V)

a:!

X

0 -+

Conducting

X

-+

Opened

A.

TROUBLESHOOTING

(B2-BDT)

No.

A-ll

®

Remove

the

Jl02

and

check

the

wave-

form

of

rn

11]

wi

t h

an

oscilloscop

e.

Normal

if

the

waveform

is

as

shown

below.

N

rl

I

<'t:

~

E-<

Cl

ill

I

N

ill

l'J

z

H

E-<

8

::r:

U)

1:..1

..:I

ill

::J

~

E-<

<'t:

s

rd

~

tJ1

rd

·.-1

Cl

.iJ

·.-1

;::1

u

~

·.-1

u

L{)

W101

r::

I

[F101]

[H101]

H102

9V

ov

[AC-Im:ETJ

jPOWERI

jvOLTAGESELECTORj

08101

---.

113 I 5 I 4 6

~

J103

6V20W

0101

2

B.

TROUBLESHOOTING

(B2-BDS-2)

CONTENTS

l.

Hints

for

Using

This

Manual

............................

No.

B-1

2.

Lamp

2-l

Lamp

is

not

normally

lit

.............................

No.

B-3

3.

Display

3-l

Abnormal

display

....................................

No.

B-5

4.

Power

Supply

4-l

Power

is

not

supplied

even

after

the

main

switch

is

turned

on.

.

.........................................

No.

B-6

5.

Circuit

Diagram

........................................

No.

B-ll

B.

TROUBLESHOOTING

(B

2

-BDS-2)

No

.

B-1

l .

Hints

for

Using

This

Manual

•

This

manual

is

written

in

the

flowchart

format.

Follow

the

arrow

mark

to

find

out

a

defective

part.

•

The

numbers

and

symbols

like

CD

of

connector

and

pin.

[I]

and

[ill

indicate

the

numbers

"Refer

to

the

waveform

of

[I]

"

means

"Connect

HOT

to

l

and

GND

to

2

when

using

a

multimeter

or

an

oscilloscope"

.

*

..

m

[I]

"

means

"Connect

HOT

to

2

and

GND

to

l"

.

GN

D-+

A .

reference

voltage,

OV,

in

an

electronic

circuit.

HOT-+ A

line

to

apply

a

supply

voltage.

The

symbols

like

@

and

(B)

mean

"Jump

to

(A)

and

@·

in

the

same

item".

The

symbol

~

means

"Jump

to

I]']

in

another

item".

•

The

symbols

@

and

@

mean

"Proceed

the

work

according

to

the

check

methods

@

and

@

given

in

the

same

item".

•

The

e

lectrical

base

for

BHS

is

available

in

B2-BDS-2

and

B2-BDS-3.

Refer

to

the

manuals

for

each

model.

The

difference

in

the

appearance

of

the

two

models

is

shown

below.

---------

B2-BDS-2

B2-BDS-3

LED

c

olor

Red

Green

Primary

voltage

YES

sele

ctor

switch

NO

lOOV

AB098800

AB615900

Channel

AB099900

AB616100

Nameplate

200V

AB098900

AB616000

Channel

ABlOOOOO

AB616200

YES

The

selector

switch

is

provided

.

NO

The

selector

switch

is

not

provided.

The

nameplates

are

compared

on

the

.

B.

TROUBLESHOOTING

(B2-BDS-2)

No.

B-2

lOOV

Channel

( o

1.

61

1.

4A1oo1

115

v

~

so-6o

11

z

o)

C

__

o

__

1_o

o_-_12_o_v_~_s

o_-_6_0

11_z_2_1_o_v

A_o

___

0

A B 0 9 9 9 0 0 A B 6 1 6 0 0

100/115

v-

100-120

v~

1 . 6 0 /

1.

4 0 A MAX 2 1 0 VA

0 5 0 - 6 0 H z 0 0 5 0 - 6 0 H z 0

LAMP

12V100W

LAMP

12V100W

OLYMPUS

OPTIAL

eo

..

L

TO.

OLYMPUS

OPTIAL

eo

..

L

To.

JAPAN

T-2

200V

Channel

(o

o.

8010.

75A2201240V

~so-60Hz

o)

(o

220-240V~

so-60Hz

230VA

o)

~-------------------------

A B 1 0 0 0 0 0 A B 6 1 6 2 0 0

220/240

v-

2 2 0 - 2 4 0

v~

o.

80/0.:75

A MAX 2 3 0 VA

0

50-60

Hz

0 0 5 0 - 6 0 H z 0

LAMP

12V100W

LAMP

12V100W

OLYMPUS

OPT

I

AL

eo., l

TO.

OLYMPUS

OPTIAL

eo

.. L

To

.

JAPAN JAPAN

T-2

B.

TROUBLESHOOTING

(B2-BDS-2)

No.

B-3

2.

Lamp

2-l

Lamp

is

not

normally

lit.

®

SIN\03

T\01

LAMP

UYPC65

J20\LLt=========================~==================~

L---------~JI02

Causes

l.

Burnt

lamp

2.

Defective

lamp

socket

3.

Contact

failure

caused

by

the

stained

contact

of

the

lamp

in

the

lamp

house.

4.

Defective

variable

resistor

RVlOl

5.

Defective

UYPC65

6.

Defective

UYPC64

7.

Defective

power

supply

part

Remove

the

lamp

house,

and

dismount

the

lamp

from

the

lamp

socket.

'

Is

the

lamp

conducting?

(Resistance

at

both

ends

of

the

lamp

am

6

YES

-

NO

Replace

the

lamp.

Is

the

lamp

lit

normally?

®

I

@

Don't

touch

the

lamp

by

a

bare

hand!

Olympus BH2 Series Guide

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