Brüel & kjær 2230 Assembly instructions

Brilel

&

Kjcer

037-0539

Precision Integrating

Sound Level Meter

Type 2230

Valid

from

serial no. 1028 340

.

.,

J,

Briiel

&

Kjcer

037-0539

Precision Integrating

Sound Level Meter

Type 2230

Valid

from

serial no. 1028340

BRUEL &

KJ.LER

Nrerum-Denmark Service Instruction 2230

Precision Integrating

Sound Level Meter

Type 2230

Valid

from

serial

no. 1 028

340

037-0539

Consisting of:

Service

Instruction

Checking

Procedure

Analog

Circuit

Digital

Circuit

ZC

0020

Preamplifier

ZF 0020

Attenuator

ZZ

0187

Main

Board

Mechanical

Parts

Circuit

Diagram

Updating

page

0-1

0-3

0-4

1-1

1-2

2-1

2-3

3-1

2

1

3

4

4-1

5-1

date

4.83

10.82

4.83

Due

to

the

constant

progress

in

technology

the

instrument

will

from

time

to

time

be

brought

up

to

date

in

order

to

provide

continuously

improved

performance.

For

this

reason

there

may

be

small

variations

between

the

instru-

ment

and

the

Service

Instruction.

However,

the

local

Service

Representative

is

in

possession

of

all

informations

regarding

any

change

that

has

been

made.

4.83

Trouble Shooting

If

any

fault

should

occur,

check

the

instrument

according

to

the

Checking

Procedure.

The

Checking

Procedure

is

divided

up

into

sections,

where

each

section

will

refer

to

a

subsection

in

the

Service

Instruction

corre-

sponding

to

a

specific

part

of

the

instrument.

The

subsection

in

the

Service

Instruction

will

normally

consist

of

a

Block

Diagram,

a

Technical

Description,

an

Adjustment

Proce-

dure

and a

Simplified

Diagram

where

the

test

points

are

identi-

fied.

Before

correcting

any

apparent

deviation

make

sure

that

the

measuring

instrument

has

tolerances

small

enough

not

to

affect

the

measurement.

When

a

fault

has

been

traced

and

corrected,

the

voltages

and

adjustments

influenced

by

the

correction

must

be

rechecked.

The

complete

instrument

should

then

be

tested

to

make

sure

that

all

basic

functions

are

operative.

The

tolerances

given

in

these

notes

are

intended

for

use

as

guide

for

adjustments.

Many

instruments

have

various

aids

to

be

used

when

trouble

shooting

or

adjustment

is

carried

out.

They

are

not

necessarily

mentioned

in

the

Service

Instruction.

The

local

Service

Representative

is

in

possession

of

information

regarding

these

aids.

Spare

Parts

Please

state

type

and

serial

number

of

the

instrument

when

ordering

spare

parts.

0-1

BRUEL

&

KJJER

Nrerum-Denmark

4.83

~

''

...

'''

.t

.•...

'

..

':''

.•.•

'

......

',.

·.···

·

·····

.····

..

·.·

·

....

·

.....

·.

·

...

·"

.

·······

·~

~~:

·

::

=-

·MQ,

;

:,

.,.

.

...

•

.•

::.

• .

1!101,

lfditlj

·

!lii!Jt

"'"~230

.....,..~.

:=I

tr

+,

'"~.~

H

..

·.

•

.. ··

.•

••

•

•.

•

•..

••.••.•

•••.••..

·

••

j•

..

:•,.·.··.··

••"·

••

·

..

f1

.

~

..

,.

.

..

·

;lfto!

lifO

·•·

.. •

•fHIIJ

!10

.. .

'•ti•

OIIt

10·

..

~

-)

411

.

..

C

tm

.

f"'\

,..,.;$

1

..

m;;filiiJO"""''~

Valid

from

serial

no

. 1028 340

Service

Instruction

2230

0-3

0

I

~

·

~

Co

w

,-·-·-·-·

-·-·-·

-·-·

-·-·--,

Ext.

Filters

AC

Output

DC

Output

1 I

Weighting

RMS

I I

Input

Amp.

Filters

Output

Amp.

Circuit

DC

Amp

.

Calcula-

tion

RAM

r

Program

ROM

~

Display

ci >

~

>

......,.._-+---+---.t

AID

~

Conv.

t------"'

Micro

Processor

~

Display

1----J Cl

L/

/l

Dr

1v

er

t--1

_I

l.l_/

Ref

.

Gen

.

A

I

•

I

II

--I

r--

1

Adder

: +

20dB

FSO

Switch

•

I

! j

......___.,__,

D

I ·i

I i

I

I .

I I

"---I

Decoder

Latch

rr==>.

But

fer

Display

Switch Error

Detector

rr

Control-

!

er

~)-

I

I •

:1

Overload

I i I :

-J

:£)>1--------'

. 1

Detector

1

I

I I :

I I

-·

-.-+----.

-+-·

--.

I I I I

....L_.

--·

__

.

__

Analog

Circuit 2230.2

.

--·--·--

·--

·-

: I

I

Ref.~

Test

Operate

dB

I

120~

110

100

90

80

70

FS

D

liJ~

LinD

FREa

WEIGHT.

--·-

~

-·--·

--·--·-·-·r--

1

I

SEL

~

Leq

MAX

MIN

SPL

DISPLAY

SWITCH

I

~

R

~SET

Digital Circuit 2230.31

1\)

w

0

CJ)

CD

<

c:;·

CD

::::l

~

2

~

a·

::::l

BRUEL

&

KJ.LER

Nrerum-Denmark

Sensitivity

POWER:

"On

"

REF., TEST, OPERATE:

"Operate"

FSD:

"100"

FREQ. WEIGHTING:

"Lin

1\

"

EXT. FILTEA:

"Out"

SOUND INCIDENCE:

"Frontal

"

DISPLAY:

"SPL"

TIME WEIGHTING:

"Fast"

DETECTOR:

"RMS"

ALL-MAX/MIN-PAUSE:

"All"

Linearity

FSD

to

"120"

Frequency Response

FSD

to

"100"

Weighting Filters

FREQ. WEIGHTING

to

"A

"

or

"C"

4.83

Checking Procedure 2230.1

Input

Voltage

DC

Output

Voltage

Input

signal

through

a 15 pF

capacitor

'

(Adaptor

Type

WA

0302)

to

Preamplifier

ZC

0020 input: 50

mV

,

1kHz.

Check

the Display reading: 94,

0.

If

necessary

adjust

"Sens. Adj." on

the

right

side

of

the

instrument.

If

not

consult

2230.2 Analog

Circuit.

L

....L..III:il..

l•

""'-....,

~

OdB

-10dB

-20dB

-30dB

-

40dB

-SO

dB

3,000V

2,500V

2,

000V

1,500v 1,000 v

O,SOOV

Input

signal 1kHz

corresponding

to

3,000 V

at

"DC

Output".

Decrease

the Input

voltage

in 10dB

step

and

check

that

the

DC

Output

de-

creases

by

500 mV.

Tolerance: ±

30

mV.

Display

reading

Freq.

Hz

unn

Lin

10 87,9 ± 2,0 93,4 ± 0,5

20 93,1 ± 0,5 93,7 ± 0,3

40 93,9 ± 0,3 93,9 ± 0,3

80 94,0 ± 0,3 94,0 ± 0,3

1,0k 94,0 94,0

2,5 k 94,0 ± 0,3 94,0 ± 0,3

S,Ok 94,0 ± 0,3 94,0 ± 0,3

10 k 94,0 ± 0,3 94,0 ± 0,3

20k

93,9 ± 0,3 93,5 ± 0,5

Input

signal 1kHz

corresponding

to

94,0 on

the

Display.

Check

the

frequency

response

according

to

the

table

above.

Display

reading

Freq.

Tolerance

Hz A c +

dB

-

10 79,7 1,5 2,0

20

435

87,8 1,0 1,0

40 59,4 92,0 0,5 0,5

80 71,5 93,5 0,5 0,5

160 80,6 93,9 0,3 0,3

315 87,4 94,0 0,3 0,3

1,0k 94,0 94,0 0 0

2,5 k 95,3 93,7 0,3 0,3

S,Ok 94,5 92,7 0,5 0,7

10k 91,5 89,6 1,0 1,5

20k

84,7 82,8 1,0 1,5

Input

signal 1kHz

corresponding

to

94,0 on

the

Display

.

Check

the

frequency

response

according

to

the

table

above

.

If

not

consult

2230.2 Analog

Circuit.

Valid

from

serial no. 1028 340

1-1

2230.1

Checking

Procedure

Random Freq. Response

SOUND INCIDENCE

to

"Random"

FREQ. WEIGHTING

to

"Lin

1\

"

Leq.

SEL

SOUND INCIDENCE

to

"Frontal"

FSDto"110"

DISPLAY

to

"Leq"

DISPLAY

to

"SEL"

TIME WEIGHTING

to

"Imp

or

Slow"

Overload

DISPLAY

to

"SPL"

TIME WEIGHTING

to

"Fast"

Test

REF., TEST, OPERATE

to

"Test"

REF.

REF. TEST, OPERATE

to

"Ref."

Calibration

REF. TEST. OPERATE

to

"Operate"

1-2

Freq.

Display

kHz

reading

1,0 94,0

2,5 94,3 ± 0,3

5,0 95,2 ± 0,5

10 96,8 ± 0,5

20 98,2 ± 0,5

Input signal 1kHz

corresponding

to 94,0 on the Display.

Check

the

frequency

response

according

to

the

table

above.

Input signal 1kHz

corresponding

to

94,0 on

the

Display.

Activate

"Reset"

Check

the Display reading: 94,0 ± 0,

1.

Activate

"

Reset"

and let the

Leq

run

for

exactly

10 s.

Check

that

the Display reads: 103,9 and is

increasing

every

second

the next 10

seconds.

Check

that

an

arrow

occurs

to

the

right

of

the Display.

Notice: This

arrow

can be

removed

by

removing

the

jumper

"1"

near the

"Peak

-

RMS"

switch.

If the

above

cannot

by

fulfilled

consult

item

2230.3

Digital

Circuit.

Input signal: 1,05

V,

1kHz.

Check

that

the Overload

indication

on the

Display

does

not

light.

Increase the Input

voltage

to: 1,12V.

Check

that

the

Overload

lights

: ± 0,05 V

If

not

consult

2230.2

Analog

Circuit.

Check

that

all

digits

and Signs on the

Display

lights.

Check

the Display reading: 94,0 ±

0,

1.

Mount

the

Preamplifier

ZC 0020 and

.;,

the

Microphone

Type 4155.

Check

by

means

of

a Sound Level

Calibrator

or

a

Pistonphone

that

the

calibra-

tion is

correct.

If

necessary

adjust

"Sens.

Adj.

".

4.83

BROEL &

KJIER

Nrerum-

Denmark

Detector Balance

POWER:

"On"

REF., TEST, OPERATE:

"Operate"

FSD: "110

dB

"

FREQ. WEIGHTING:

"Lin

1\

"

EXT. FILTER:

"In"

SOUND INCIDENCE:

"Frontal"

DISPLAY:

"SPL"

TIME WEIGHTING:

"Fast"

DETECTOR:

"RMS"

ALL-MAX/MIN-PAUSE

:

"All"

Pr

eamp

Offset

FSD

to

"

70

dB

"

EXT. FILTER

to

"

Out

"

FSDto

"110"

Weighting

Network

FREQ. WEIGHTING

to

"

C"

FREQ. WEIGHTING

to

"A"

Overload

EXT. FILTER

to

"In"

FREQ. WEIGHTING

to

"Lin

1\

"

Reference Generator

4.83

REF., TEST, OPERATE

to

"

Ref."

EXT. FILTER

to

"Out

"

Analog Circuit

2230.2

ADJUSTMENT

PROCEDURE

Input

signal

to

"Ext.

Filter"

socket

J201

1: 633

mV

,

1kHz

.

Check

at

ZE 0410 pin 15

that

the

curves

are

equal.

If

necessary

adjust

P205.

Change

the

input

voltage

to

2mV.

Set

P206

to

middle

position.

Check

the Display reading:

"60,0".

If

necessary

adjust P207.

Check

the

"DC

Output"

voltage: 500 ± 2 mV.

If

necessary

adjust

P209.

Change

the

input

voltage

to

: 633

mV

.

Check

the "DC

Output

"

voltage

: 3000 ± 2 mV.

If

necessary

adjust

P208.

Check

the

Display reading: "11

0"

.

If

necessary

adjust

P1

03. (Ref.

to

Digital

Circuit

2230.

3)

.

Repeat

the

above

adjustments

until all

are

within

the

tolerances.

Short

circuit

the

Preamplifier

ZC 0020

input

to

ground

through

a 15pF

capacitor

(Adaptor

Type

WA 0302).

Check

the

voltage

at

the

output

of

the

Preamplifier

on

the

point

C205, 206:

0 ±

20mV

DC.

If

necessary

adjust P201.

Input

signal through the

adaptor

to

the

ZC

0020

input:

50

mV

,

1kHz.

Check

the

Display r.eading: "94,0".

If

necessary

adjust P206.

Check

the Display reading:

"94,0".

If

necessary

adjust P202.

Check

the

Display reading:

"94

,

0".

If

necessary

adjust P203.

Input

signal

to

"Ext.

Filter"

socket

J201

1: 2,2

V,

1kHz.

Check

that

the

Overload

arrow

lights

within

± 0,2 dB.

If

necessary

adjust P204.

Check

the

frequency

at

the Ref.

input

to

ZE 0399

3:

1000 ± 1 Hz.

If

necessary

adjust

P1

01

.

Check

the Display reading: "94,0".

If

necessary

adjust

P1

02.

Valid

from

serial no. 1028 340 2-1

BRUEL &KJJER

Nrerum-Denmark

4.83

0 P209

0P206

TP

11~~

T1~~

PZOZ

P2

05

00

P203

2

202

2E

03

99

I

0P208 I

~---15

1

Z203

I

2E0410 I

P204 [!]

P207 [!]

1 I

0

P101

0P

1

02

[!] 220187

Valid

from

serial no. 1028340

Analog

Circuit

2230.2

SIMPLIFIED

DIAGRAM

Mi

c.

2-3

Attenuator

ZF0020

:--~~h

P

re

Amp.

zc

0020

+2

0V

INPUT

AMP

.

PRE.AMP.

SW

I

TCH

I A

TT

.

"S

ens.

Ad

j

'.'

p

201

+

·r

FREQ

WEI

G

HTIN

G

~~

li

n"

Lin

FI

LTER

1624-25

EXT

Fl

LTE

R

In

n

Out

~

SO

U

ND

INCI

DENC

E

ro

ntal

~

Random

D

AC

Ou

t

1

oov

D

ETECTOR

Pe

akn

RMS

~

I I I

TI

ME

WE

I

GHT

I

NG

I

mpulse

~

Fas

t

Slow

t

(\

I I I

~~=-

I : I I

I -

"'

I I I I

RESET

~

I

g_

c::

7;

I I I I

: E

~

i : : : I I

1

63

2

mV

~

w::

u:

I I I I 1

I

'-~-~-~~

I I I

- - - - - - -

~

--

Jz m\''-"...:.a_..,._

14

_4-1

1

7-

-t----i ---------

_.....L...:..

1....,- - - - - - - - - - - - - -

-

~

-

----

T- - - - i - - - - --

--

- --

---

:

~

---.L..

I

---.

:

AC

OUIPUT

AMP

.

1\

~u;6~r

RMS

CIRCUIT

: : :

WE

I

GHT

IN

G

FILTERS

I

;::;.

P103

:

•SV

I ,

V 204 r

~

V205

:

Lo

:

N113

)

I I 1 1 1 I

..

Bal." I 1 1

In

ver

t

er

rt.

P2

05

I I

~

......

In

teg

r

ato

r 1 1

u--;---

RMS

De

tector

"Gai

n"

PZ0

8 1 1 N1

08

Hold

Circui t

~

:

OC

OU

TPU

T

AMP.

3,

00VDC

1

------..

DC

Ou

->

1--1

4

~...._

________

~

l

'

"'"'

'''"''

/ >

316mV,

1

kH

z

0 0

000

""'lQ~

0 0

1 7 6 8

i~

'j

~2t;

b

~~fA

! .A:

1

N1

0Z

!

~~

Buffer

.Y

..

I

316mV

Lin

C /

L...---o

:

10.

/ I p

20

-

20

k Lin

____..

..;5>--

>

W~------rJr<C>---

------1

~

(

/\

1--

8

_..._

____

_.!._

____

---.1

1-=

1

~2

-4'------41>--llf-

(\

1--:1----1--cr'

7 \ J

11

>

·

~

;

V207 I 3,00¥ DC :

/.~

P

206

"0ffset" : 1

""l

:1

f2"3-

>

1-7-----i-.1

>

1-1-~i-0

·

~

T

-L----'

3,00V

,.v

VZ

O

'il

+SV

VZO

B

ZE

OJB6 1

V206

1:

c

ZE

0410

~

3

2E

0399

,--

-

--------

--

p1

02

I

REF.

G

EN.

.J:

/

I

/

I

/

+5

V

/ /

...,,....

r'>""'l

1kHz

~

50

mV

:

v

104

v1

01-4

1----

1-

Ref.

+20d8

ZF

002

0

+ZOdB

~I-/

~

ADDER

L-------~7

6 7

B2

o--------'

Pr

i

ority

.___

I

-__,.

5

~A

2

1+-~T.o------+-----+1

5

Encoder

!=======~==~

o----4.......+-+---~~

4 a

o-

2

Al

-3

I 6,7,9 3.

5.7

N

111

I 3

I 2

I

V106

v

10

5

C

ZOS

V

204

:>

N

10

1

V205

VZ

06

1.7

8V

..

"

~

----

1

I

L

in

Input

!-

Over

l

oad

v

202

-

.4

I

n._____

Outpu

t

P

ZU

41

Ove

r

load

- 6,4v 7

OVERLOAD

DE

T.

--

-

--

- - - - - - - - - - - - - - - - -

--

- - -

I-

- - -

--

-

vz

06

~~

P207

I :

-

~~v

N

103

:

11

J

:o---j'

~

10

lr--'

.....

I

If---<

N105 0--H--

fPl

o9

-5

t

I

- -

---

- -

--

- -

------

-

--

-----

----

--

1-

- - -

--

_!!:_

~8

2_:

: I

~-·>-E·

r

~---~

--

,-·-·-·--1-·-

·

-,

,--

--

1

I I

:r:

1::::;~:::::

1

==========~

Latch

10-13

1 I Buffer

I

Detector

L-----~1

-L--.-+1

=I>

I

P103

1

AID

~

•

Con

v.

~

I

I I I

I I

Ext.

P~w

~

Bott

2.3 1

Powe

r C

on

troll

er

+

..,....._

AR

10

1--~

i

..........

~

Su

pp

Iy

~--1

:

-------,--.-l

V113

I I

I ZZ01871

I

-

~

-

:

J--

- - I- - - - - - - - - - - - - - - - - - - - - -

--

-

-_

I Analog

Ci

rc

uit 2230.2

1

I

~

:;~n

Operate~

I

dB

I

FSD

BRUEL &KJJER

Nrerum-Denmark Digital Circuit 2230.3

Description

The

DC

Output

from

the

Analog

Circuit

is

fed

to

the

A/ D

Convert-

er

V1

08.

The

Converter

works

as

a

Successive

Approximation

Converter

which

means

that

the 1

of

the

10

bits

output

is

set

when

the

DC

voltage

is

higher

than

the

half

of

the

Converter

voltage.

is

set

if

the

voltage

is

higher

than

the

upper

half

of

the

half

voltage

and

so

on.

The

Microprocesso

r,

which

has

8

inputs,

first

ask

for

the

two

M.

Sign.

bit

and

store

then

in

the

RAM

V114. Then

the

eight

L. sign.

bits

are

transfered

to

the

RAM

.

The

result

is

calculated

with

a

speed

of

128

calculations

in

a

second.

In

the

calculation

the

Data

from

the

Latch

Buffer

V1

07

are

used

as

wel

l,

telling

the

A

ttenua-

tor

positions

and

the

po

si

tion

of

the

Display

Switch.

Then

the

result

is

fed

in

se

rial

to

the

Display

Dr

iver

and

to

the

Display

. The

Display

column

is

updated

64

times

in

a

second

and

the

Digit

s

every

second.

The

ROM

V115

contains

th

e

program

used

for

the

Micro

Processor

,

and

the

Controller

V113

controls

the

Reset

,

Error

and

Battery

conditions.

4.83

Valid

from

se

rial

no.

1

028340

3-1

1-

120

110

100

90

80

70

dB

FS

O

I

.

---

·

--

~

-

.

---

· - ·

--

·

--·---

1

I

nput

Amp.

Filter

Output

Amp

.

Detector

I

·-

1 I

I

DC

Amp

.

2.2

V

DC

I

R e

f

~

T

es

t

Op

erate

I

---------------------------------

--------

----------

L-

---

-4

.6

1

I

...,~

....:~

p

103

5m

sD DD

__

OV

~

I

~

DB

AI 0

CONVERTER

CALC

UL

AT

IO

N

RAM

PROGRA

M

ROM

V

REF

I

I o-g

~

10

::::;:;-

19

;:::::===;-r==============:;:::

~

1f

,-r========

;

=======

:r

::::;.,l}

D->~c~>~~~

i

r---r---------~------------~

A

I

N

!

> I

l

In

put

Overload

Output

Overload

L_

_

__J

FSO

Adder

Sw

it

ch

~

110dB +2

0dB

I

Analog

Circuit2230.2 j

--·-f--

· - · - ·

--

·- · - ·

-·-

·-

I---

ERROR

OE

T.

I

I "0110"

STRT

V1

08

DB

~rz

o

F~

211

rz

5

H

BEN

LBEN

6.8.11

.

13

""'

""

"\_

CS

!oo

1

t-

5

----.!.,_--

-1

18

CEO

MA

~

v

111

.___

M

....,

W

....,.

R

.,---

0

..,.-_

4

__

MR

T"

O...,.--J V

11

4

17

16

111111

I

Ill

o

v-

35

M

WR

lO

I

7

MR

O

MRO

l

MA

0·7

19

MUX

v1

15

)"

A-

111

v112

0) 0B0·7

~=::=::=::=::=::::::::....::::=::=::=::=::=::=::=::1

~

-~

000

==::=>t

F1-4 3,5,7.

9,

12,

14

,1

6.18

8-

15

EF

0.

4

Micro P

ro

cessor

~

NO

~

N

~

1

ri

NZ

~~

T

P

~

A

~~

T

;

P

~

B

~------~

CI

T

oc

~

k

~~

X

~

·

T

t

a

~

I

~

2

~

-

4

~

C

~

I

e~a~

r

~

I

N

~

T

~

2,4

.1

5.17

iG

2G

r9

18

1

17

34

33

ro

L...

39

:::::;

3

36

j<'

'--:~

1

;--'+:

1

~

9

V1

O

7 2 3 +4 y 1 ·

~

1

NO

N1

N2

·-

A

LATC

H B

UF

F

ER

A

~,........

I 8

1------J

M

10

1

2.097152 M

Hz

I

I +

5V

I T

0

N1

10

DI

SP

L

AY

~

!lJJn

...---

ZE

0404 -J -,,U

c-v111

1

.:::=---

C

LK

-

V1

11

r+

I

2

h

1

~

5

__________________

~

---1

Bms

r--

I 7,6

______________

~~

c

I + 5V

'9

1

...-

--+1

Bms

t-

3

T-

CLK

to

ZE

0

404

: I I I

~

~::~

Jt

o

AIOConv.

I

_L.

__

J·-.,---'-·-O

V

6

~

STRT

V1

08

1

~

V110

/ 1 10

1

'1\

5 v

11

1 1s

13

14

Load

/

3

2M

EF Cl

ea

r

IN

T

--i

15ms1--

ll_jl

ov

/

I

+5V

.---------<l

N

,_

IO

;-t

l

h.a

~

:

..

1..

:

~

E-R-R-OR

32Hz

f---

15

I

-z

101

Contro

ll

er

·

~~-t---.----T-----7--------------------

---

---------------

~

1 Batt

:

13

I I I 2 1 5

-B

R

ese

t2 R

eset

1

I I I I

~_,~1

6

----

..

17

~-------------r--~~~~~

....

I v

11

3

1

1 I I I

N103

I I

I I I I I

I I

1 1 I 1 I

--.-o

I 1 I 1 I

: - I I I I

I I I zz0187 I I I

--i

---------

L

--

+-

-

---------

I_--

1---

-------

I I I I

I_ - - - - - - - - _I- -

-1

-

--

- - - -

--

- - - - - -

----

-

_J

l I I

1 I I

1 1 S

EL

u

I I Leq

1

~

I

mpulse

MAX

P

eakn

Fast

MIN

RMS

~

Slow

SP

L

...

0

DETECTOR

T

IM

E DI

SP

LAY

SW

I

TCH

W

EIGHTI

NG

..

YVY

.1.

+5V

L_j"'

N107

N

10

8

~~

I

I I

CON

T

ROLLER

------

-----

- ~

---

-

--+-

--

- ·

-·-

·

--,

I .

Power

I

Supp

ly I

I

Ana

l

og

Circu

it

2230.2

1

--

-.

---·

-·-

1 I

I

.I

I

A

ll

~

MAX/MIN

Pause

I

~

RESET

I

__

___

____

z~ o

2_8

~

Di

gital Cir

cu

it 2230.3

.....

0

00

1\)

U)

0

-

0 N

3 0

(/)

0

~

0

ei

rv

::I

0

!=>

......

0

1\)

00

U)

~

0

~----------------------------------------------------------------------------------l

I 27,4

kn

I

ZC0020

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

I

~~n

I

300pF

2

kfi

I "

"~

3,3

Gfi

I R 1

I

,,

..

~~~--~-----------------------.

i "

~~n

I

1Gfi

L

____________________________

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

·

~-~~-~----------J

lfy.

w

v

1.

v 2

u2002

0

·OG

Case

,-------

L

__

,

1")

LSB~:>X

~

)

.--_j

.,

~

.-

~

C3

I • 'l:

;,..o

L--------

~

-

Isotator

YJ

0420

Rivet

YN

0016

DP0380

zm

!II

JJ

...,

C=

c m

3 r

0!20

~

"

3 C'-

~

r'n

"JJ

""C

~

CD

n>

3

"2.

-

(i)"

~

N

0

~

0

ZC 0020

Preamplifier

.-DP0126

YM2L.20

DB

2257

Microphone

I

not

included

in

ZC

0020

I

~~==~stt---DB225B

DB

2259

YJ

0046

c 1,2 Glass 5% 300

pF/300

V

c 3 Tantalum 6,8

J.LF/6

V

c 4 6,8

J.LF/35

V

a

Current

reg. 1N5283 0,22 rnA

a 2 1N5295 0,82 rnA

a 3 Si. BAV20 150

V/200

rnA

a 4 Ze. BZX79C56 53-60 v

/0,25

w

2

CG 0002 R

CF 0006 R

CF 0002 R

R

av

6001

R

av 6002 R

av 0249

av 1327 v

v

2

•• •

.~

..

•• •

.. .

YK1104

YO

0258

Carbon

3,4

Metal

5

6

7

1,2

Silicon

3 FET

4

Silicon

OL32

51

1/4

w 20%

1%

Printed

Circuit

Board

DB0977

J y

0003

3,3GQ

RH

0021

1,0

GQ

RH

0906

10,0

MQ

RH

7100

2,00

kQ

RF

3200

750

kQ

RF

4750

27,4

kQ

RF

4274

BC177BP VB 0148

U2002 VB 1037

BC177BP VB 0148

XC 1857

10.82

......

0

00

1\)

1\J

Ul

0

-

0

3

CIJ

~

ii)"

-

::I

!=>

......

0

1\J

co

Ul

~

0

N

0

1'0

0

~----------------------------------------------l

zc

0020

1Gfl

27

,4

kfl

BAV

20

Q3

BZX79C56

Q4

L

__________________

·~--------------

·

_____________

j

/fil·

w

v

1.

v 2

u2002

0

·0,

Case

,--------

L _ 1

';

LSB~~X

o"

I

'=

;..~

r_

_j

,r

»

8Y

:"..-

c3

L

'11:

;..-+

-----------

!sola

tor

YJ

0420

Rivet

YN

0016

DP0380

~

J

,

~

a

{

Q!~

I

~

L

__

_::

__

~

__

_:_

J:

R5

J

_,.

zlll

!II

JJ

....

C=

c m

3 r

0120

~

"

3

c....

~

?n

;o;"J)

"1J

...,

CD

m

3

"'0

~

(5"

...,

N

(")

0

1\)

0

ZC 0020

Preamplifier

YM2L.20

DB

22

57

Microphone

(not

included

in

ZC

0020

l

~~~~=4+---~

DB2258

YJ

0046

DP

0381

c 1,2 Glass 5% 300

pF/300

V

c 3 Tantalum 6,8 p.F/6 V

c 4 6,8 p.F/35 V

a

Current

reg. 1N5283 0,22 rnA

a 2 1N5295 0,82 rnA

a 3 Si. BAV20 150

V/200

rnA

a 4 Ze. BZX79C56 53-60 v/0,25 w

2

CG 0002 R

CF 0006 R

CF 0002 R

R

av

6001

R

av 6002 R

av 0249

av 1327 v

v

2

•• •

.

_..----,..

.

•• •

.. .

YK1104

YO

0258

Carbon

3,4

Metal

5

6

7

1,2

Silicon

3 FET

4

Silicon

DL3251

1/4

w 20%

1%

Printed

Circuit

Board

DB0977

J y

0003

3,3GQ

RH

0021

1,0

GQ

RH

0906

10,0

MQ

RH

7100

2,00

kQ

RF

3200

750

kQ

RF

4750

27,4

kQ

RF

4274

BC177BP VB 0148

U2002 VB 1037

BC177BP VB 0148

XC 1857

10.82

BROEL &

KJ.!ER

Noorum-Denmark

DL

3058

DS0559

Attenuator ZF 0020

DL

3283 YJ0613

~,...::.----

DZ

9647

DB

1026

DP0031

YJ0612

DB

2304

DS0559

OD0313

082305

,----------

I

L

----------

10.82

,-

1

I33GO

I

R1

I

----,

I

X I

0 I

~

Q)l

~I

_

_j

c 1

c 2

R 1

R 2

ZF 0020

2230

from

serial no. 1028 340

Ceramic

3,9

pF/250

V

CK

0391

Variable 5-20 pF

cv

0060

Carbon

1/8

w 30%

33GQ

RH 0924

0,1

w 10% 100

kn

RA

0057

Printed

Circuit

Board

XC

1935

Brüel & Kjær 2230 Assembly instructions

Popular Measuring Instrument manuals by other brands