BRUEL & KJAER 2209 Assembly instructions

Ti llhör av d. 4655
CE NTRAL A FLYGVERKSTADEN
ARllOGA
i,reoga E l e," ronikh ISi ~r i~, a "or en'ng
www.aef.se
3650 ------------------------~----------------------
Brue &K-cer
r
2209
I mpu I se Pre ci si on
So un d L evel M et er
valid from serial no. 496282
037-0114
,..

BROEL & KJ.LER
Nrerum -Denmark
Service Instruction 2209
2209
I mpu Ise Precision
Sou nd Level Meter
valid from serial no. 496282
037-0114
2209 page date B & K
Sub-Assemblies
page
date
Service I nstruction
Checking Procedure
0-1
0-2
1-1
, . 74
1.74
5.72
ZC
ZE
ZE
0007
0094
0095
Input Stage
Output Amplifiers
Meter Ci rcuit
1.74
1.74
1.74
Power Supply
Meter Circuit
1-2
2-1
3-1
1.74
1.74
1.74
ZE
ZG
ZL
0102
0071
0032
Preamplifier, Filter
Pc;>wer Supply
RMS Circuit
1.74
1.74
1.74
3-2 5.72
3-3
5.72
Output Amplifier 4-1
1.74
4-2 5.72
Input Amplifier
5-1 1.74
5-2 5.72
Weighting Network
6-1 5.72
Circuit Diagram and Part s List
7-1
1.74
Trouble Shooting
If any faults should occur please check the instrument according to the procedure outlined below.
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 according to the Checking Procedur e to make sure that all basic functions are operative.
The tolerances given in these notes are intended for use as guide for adjustments.
Before correcting any apparent deviation make sure that the measuring instrument has tolerances small enough not to aftect the measurement.
Spare Parts
Please state type and serial number of the Impulse Precision Sound Level Meter when ordering spare parts.
2209·1.74
0-1

~
o
~
I o
tO
~
(fl
m
<'
ii·
m
~
2
;'.
o·
:::J
Range
(blackl
__________
Range
(transparent)
Jp 2100
JJ 1406
Jp 2702_
~
2702
N
m
o
f6
+>
Connector
Jp 1001
JJ
~ ( A A /
OB 0004
~
~
f6
'-J
.j:>.
Filter Switch
Meter
Switch
i1IQfi
I
/ ~
/ T
"'
•• o
/
--....-
.,
1~' · t7' I
IIILT"'\ I
ZS 0187
JJ 2004
N
r
o
o
w
~
lej
I
~
I--- Adj . of Ref. voltage
@-. - L. . Adj. of Pol._voltage
YS 0451
,. CDO 0076
@ @
"" 0o
/ .
r.-;
I

BROE L & KJJER
Ncerum -Denmark
Checking Procedure
2209.1
Block Diagram
ZC 0007
ZS 0187
Input
Input
Stage
Connect-
ing
Board
3.16 V
02
O
Attenuator
1.1. Sensitivity
a. RANGE (black):
"120"
RANGE (transp.) :
"120"
Fl LTER SWITCH:
"Lin"
METER SWITCH: "Fast"
Fl LTER SWITCH to "A-B-C- O"
b.
1_2_ Frequency Response
RANGE (black):
"120"
RANGE (transp.):
"120"
Fl LTER SWITCH:
"Lin"
METER SWITCH:
"Slow"
2209-5.72
Ext. Filter
Ext . Filter
"In" "Out"
0. 2V 0.2V
Pre. Amp. Out. Amp.l
ZE 0102
05
ZE Ot02
02
ZE 0094
>
Weight - 00
ing or
Network
O
o >
Filter Filter Attenua.tor
Switch Switch
Pha ..
Inverter
. .
O 110
a....rload
04
0.5VAC (in"Rec ." 5V)
r-------------------------------~~ __ ~AC
Output
.. Rec."
~------~--~~~DC
" OverIoad"
R~S
approx 0. 8V
ZL 0032
ZE ' 0095
0094
ID
II
ZE
> >
'rom Z G 0071
Output Amp.
Overload
"OverIoad"
.. ~
l
'o
fi
.. .' :0 .
;(" ~ ..
Ujl
- .. -
~
Frequency Oscillator 2209
Input signal to front end of 2209: 3.16 V. 1000 Hz .
Adjust
"Gain Adj ." for 1OdB deflection (Adjustment range for "Gain Adj ." approx. +3, -10 dB).
Output voltage on "Ext. Filter In": 0.2 V
"OC Output" : Approx . 1 V (measured with High Imp. Voltmeter)
"AC Output" : Approx. 0.5 V
"A C Output": 5 V for METER SWITCH in "Rec"
Oeflection for all ranges : 10 dB ±0.1 dB.
Frequency: 1000 Hz.
Adjust the input voltage for a9 dB deflection on 2209.
Varv the frequency from 2 Hz (or 10 Hz) -70 kHz .
Meter deflection:
8-10 dB.
Valid
from se r ial no. 372528
1- 1

2209.1 Checking
hocedure
1.3. Meter Circuit
a. RANGE (black)
"120"
RANGE (transp.':
"120"
FILTERSWITC 1:
"lin"
METER SWITCI I:
"Fast"
b.
METE R SWITCI I:
"Peak"
c. METER SWITCI :
"Imp . (Norm.!"
d. METER SWITC~ :
"lmp. (Hold)"
1.4. Overload Indicat , rs
RANGE (black):
"110"
RANGE (transp.l : "110"
FIL TER SWITO :
"Lin"
METER SWITCH
"Fast"
1.5.
Noise
a.
RANGE (black): "60"
RANGE (transp.l·
"10"
FILTER SWITH(:
"A"
METER SWITCH .
"Slow"
b.
RANGE (black): "60 "
RANGE (transp.l .
"30"
Fl LTER SWITC~ :
"Lin"
METER SWITCH
"Fast"
c.
RANGE (black): "130"
RANGE (transp.)
"80"
FlLTE R SWITCH
"Lin"
METER SWITCH
"Fast"
1.6. Sensitivity with
~ licrophone
a. RANGE (black): "Ref"
RANGE (transp.l :
"Ref"
FIL TER SWITC~ : "lin"
.METE R SWITCH "Fast"
b. RANGE (black) t,
"120"
Frequency: 1000 Hz. Adjust the input voltage to give exactly 7 dB deflection on 2209.
Meter deflection: 10
dB ±0 .5 dB.
Adjust the input voltage to give a B.6 dB deflection on 2209.
Disconnect the
input signal by depressing "Oscillator Stop" on the Beat Frequency Oscillator and
check that the deflection is OdB af ter 2·4 sec.
Connect input signal. Meter deflection: 9 dB.
Disconnect
input signal and check that the deflection drops max. 0.5 dB in one minute.
Input signal: 7 V, 1000 Hz (corresponding to approx. 17 dB above full scale deflectionl.
Depress "Oscillator Stop" on the Beat Frequency Oscillator. When releasing "Oscillator Stop"
both "Overload indicators" should light up a few times.
Connect
an Input Adaptor JJ 2615 to Type 2209 and shortcircuit its input.
Notice'
Make sure that the contact surfaces are clean and dustfree.
Meter deflection: Below OdB.
It is essentiai that the measurement is carried out in a quiet room. If the Sound Level Meter has
been overloaded, the instrument must work for several minutes before the meter reaches its
normal deflection.
Meter deflection: Below O dB
Remove Preamplifier
ZC 0007, and measure the noise with apen input.
Meter deflectian: Max. 3 dB.
Adjust
"Gain Adj." to the carrect "Open circuit sensitivity" of the micraphane.
Check the sensitiv
ity with a Pistanphane Type 4220 or Sound Level Calibratar Type 4230 . The
meter deflectian on 2209 should
be equal to the Sound Pressure Level produced by the Pi s ton·
phane (Remember to correct for the actual static pressure).
Tolerance: ± 0.2 dB.
1-2
2209-1.74

R 901 1. 2kJ\
-9 .5 V
-2!j V
BROEL & KJ..LER
Ncerum - Denmark Power Supply 2209.2
-9.5 V
+ 5 V
-2.9V
+ 200V
+ 120 V
Battery 3-4.6V
+49 V
+J
- 30 V
Simplied Diagram of Power Supply ZG 0071
Normal delay from switching
"ON" till the instrument is stabilized is approx. 30 see.
2.1 . DC Voltages
METER SWITCH: "Batt"
Check the DC·voltages according to the drawing to the pr in ted circuits XC 0335 showed on
ZG 0071.
If the -9 .5 V is present and the Oscillator frequency is approx. 2 kHz the transformer can be
regarded as an ordinary mains transformer with secondary voltages for the various circuits,
Small deviations in voltages can be adjusted by the
potentiometers according to following scheme,
whereby greater deviations are rather
due to a fault which should be corrected before adjustment.
Consumption from
the batteries in position "Ref" is approx, 210 mA,
"Ext, Filter" approx 195 mA,
Adjustment
of P 902: -9 .5 V
P
903: 200 V (Measured with a high impedance voltmeter)
p 904: 49 V
The transistors V 910 and 911 are acting as battery regulators and the emitter voltage on both
should be approx.
-2,9 V.
If this voltage is -2.9 Vand the DC converter is not oscillating disconnect the different loads one
by one. If oscillation is impossible even unloaded the transformer or the converter transistors
(V
907 and 909) are likely to be defective.
If the -2 .9 V is not present examine transistor V 901,902, 905 or 906 for faults as this is the
regulating circuit for V
910 and 911,
Valid from serial no,
372528
2209-1,74
2-1

PSOl
Normf
Hold '[
Roc . ----,
S l ow~6
Fast ----o 04
Imp . -~~~
Imp. ==::..r
P.ak
~~---r~------------~----~--~------------~--~~----~--------
BROEL & KJJER
2209.3
Nrerum -Denmark Meter Circuit
Adju stment of: P501
P601
P602
P603
P604
R703
3.1. Sensitivity Check
a.
RANGE (black):
RANG E (transp.):
FI
LTER SWITCH:
METER SWITCH:
b. METER SWITCH :
e. METER SWITCH:
d. METER SWITCH:
3.2. Sensitivity
Adjustment
a. RANGE (black):
RANGE (transp.) :
FILTER SWITCH:
METER SWITCH:
b. METER SWITCH:
2209-1.74
RMS Balanee
OV DC on V 604 50urce
Sensitivitv " Hold"
Sensitivitv
"I mpulse"
Sensitivitv
"Fast" and "Slow"
Batterv Indieation
"120 "
"120"
"E xt. Filter"
" R ee "
"Fast"
"lmp . (Norm)"
"Imp. (Hold)"
"120"
"120"
"E xt. Filter "
"Rec"
"Fast"
w
Frequenev Osc il lator
Frequenev 1000 H z. Adjust the in put voltage for 5 V
RM S on
"AC output" socket.
Meter
de fleetion: Exaetlv 10 dB.
Meter deflection: Exaetlv 10 dB.
Depre
ss "Meter Reset" and release it again.
Me te r de f lee tion: \O dB.
Frequency: 1000
Hz. Adjust the input vo ltage for 5 V RM S on "AC Output" socket.
Cheek
with an o se illoscope that the doub le r ee t if ied eurv es on the cathodes of Q 50 3 and Q 504
are equal. (ZL 003 2)
If necessary adjust P803. ( ZE 0094) .
Valid
from serial no. 372528
-9SV
DC
o. av opprox.
~~~~~----------------~-----------------------+sv
•
[
al
1---- __ -+4-,.;: '
~ ~ - ....
~
2209
3-1

----
2209.3 Meter Circu it
c.
METER SWITCI-. "Imp"
d. METER SWITCH
"Fast"
e. METER SWITCH "Imp. Hold"
f. METER SWITCH
"Peak Hold "
g. METER SWITCH
"Ban"
3. 3. Overshoot
RANGE (black)'
"120"
RANG E (transp.1
"120"
FILTER SWITCI- : "Ext . Filter"
METER SWITCH "
Fast"
3.4. Meter Decay TimEConstants
a.
RANGE (black):
"120"
RANGE (tramp .):
"120"
FILTER SWITCH
"Ex!. Filter"
METER SWITCH .
"Imp"
b. METER SWITCH:
"Imp. Hold"
Disconnect input signal.
Unsolder one end
of diode Q 601. Adjust P 601 (ZE 0095) for O V ± 5 mV on V 604 source.
Connect
input signal.
Adjust p 603 for full scale deflection (lOdB).
When connecting input signal the deflection on 2209 should be exactly 10 dB.
If necessary adjust P 604.
Depress
"Meter Reset" shortly and check the meter deflection: 10 dB.
If nece ss ary adjust P 602.
Adjust for a meter deflection: 10 dB.
Switch Meter Switch to "Fast" and check deflection: 7 dB.
With a battery voltage of 3.0 V - 3.1 V the meter should deflect to the lower mark of the banery
scale.
If necessary change in value of R 703 .
Frequency:
1000 Hz. Adjust input voltage for an 6 dB deflection on 2209.
Disconnect the
input signal shortly by depressing the "Oscillator Stop " on the Frequency Oscil·
l
ator and check the overshoot.
Overshoot:
0.1-1.1 dB for METER SWITCH in "Fast"
0.1-1 .6 dB for METER SWITCH in "Slow"
max. 0.1 dB for METER SWITCH in "Imp. Hold"' )
' ) Before
"Oscillator Stop" is released for check of overshoot depress "Meter Reset" on 2209.
Frequency: 1000 Hz. Adjust the input voltage for an 8.6 dB deflection on 2209.
Disconnect the
input signal and meaSure the time it takes for the pointer to decrease from 8.6 to
OdB.
Tolerance: 3 ±0.5
sec.
Adjust the input voltage for 10 dB deflection on 2209.
When the input signal is disconnected the meter deflection must not decrease more than 0.5 dB in
one
minute. (Only valid for 20
0 C and max. 60% relative
humidity) .
3-2 2209-5 .72

--
Meter Circuit 2209.3
. ~r-
~.:
Frequency O sc illator I
3.5. Check
of RMS Rectifier
a. RANGE (black):
RANGE (transp.):
FILTER SWITCH:
METER SWITCH:
"120"
"120"
" Lin"
" Fa s t"
a.
b.
:~~
. ~ ' ~ ' . ~ .
B '
.. • • .. •• 0 ®
Il
rw ::
; j : !~ :.' ! ' .}.
.....:...=...
.- Frequency O sc illator II 2209
Depre
ss "O s ci Ilator Stop" on Frequency Os ci Ilator II and adjust output of Frequency Oscil·
latar I
to give a 7 dB deflection on 2209.
Depre
ss "Oscillator Stop" on Freuqency Oscillator I and adjust output of Frequency Oscil·
latar
II to give a 7 dB deflection on 2209.
With signal from both oscillators the deflection on 2209 should
be 10 dB ±0 .1 dB (evt. uno
linearity of 2209 meter scale 0.2 dB).
©
O -O O
~"
.0 .: "0
~~ "
t~~
..
--
Oscilloscape
Pu l se Generator 2209
----
vp
[---V,.V
O
•5
n-----,~p
----v
RMS
leMS n
1 : 2 1 : 4
3.6. Check of RMS Indication
RANGE (black): "120 dB"
At a pulse duration of 0.1 m See. and a ratio of 1.2 the input voltage to 2209 should be adjusted
RANGE (transp.):
"120 dB"
to give a 0.2 dB deflection.
Fl LTER SWITCH:
"Lin"
METER SWITCH: "Slow"
Check the indication for various pulse ratio according to following scheme.
RANGE
(black) t
T Vp
V
RMS
Indication
120 dB 1 : 2 1 0.2 dB
110dB 1 : 5 2
8.1 dB ± 0.5 dB
110 dB 1 :
10
3 5.6 dB ± 0.5 dB
110dB 1 :
26
5 1.7 dB ± 0.5 dB
100dB 1: 100 10 6 dB ± 0.5 dB
100 dB
1: 200 14 3 dB ± 1 dB
100 dB
1: 400 20 OdB ± 1 dB
100 dB
1: 900 30
-3 .5 dB ± 1.5 dB
2209-5 .72 Valid
from serial no. 372528
3-3

.sv
AC Output
SV ~ (Roc .I
BROEL & KJ,lER
Nrerum -Denmark Output Amplifier 2209.4
/7
n U01
1--I---+--ilU
160 mVv
r--------r--...,.....----9,5 V
Adjustment of: P801 Sensitiv
ity
P802 Sensitivity at 2 Hz
P803
Symmetric Output
P501 RMS Balance
.120 V
.sr-
~
: e;
t.mJ
e:
.e
-.
~ :} ;
•
..
e
••
~
4,1. DC·Voltages Frequency Oscillator 2209 Frequency
Analyzer
METER SWITCH: "Rec" The DC·voltages across R 809 should be approx. 4 V negative.
If necessary change in value of R 804.
From midpoint R 826, R 827 to ground the vol tage should be 57-63 V.
If necessary change in value of R 822 (56-120 km.
From midpoint R 835, R 836 to ground t he voltage should be 57-63 V.
If neoessary ch ange in value of R 8:11 (4 7-8 2 kUl.
2209-1.74
Valid from se rial no. 372528
4-1

2209.4 Output AlT plifier
4.2. Sensitivity
a,
RANGE (black)
RANGE (transp,
Fl L
TER SWITCI I:
METER SWITC ~ ,
b. METER SWITCI- to
4.3. Attenuatars
RANGE (black):
RANGE (transp.)
FILTER SWITCI- :
METER SWITCH
4.4.
Output Impedant':,
RANGE (black):
RANGE (transp.l
METER SWITCH
4.5. Overload
RANGE (black):
RANG E (transp.)
FILTER SWITCI- ,
METER SWITCH
4.6. Noise and Hum
a.
RANG E (black):
RANGE (transp.)
Fl L
TER SWITCH
METER SWITCH'
b.
RANGE (transp.) 'o
"120"
"120"
"Ext, Filter"
"Rec"
"Fast"
"
120"
"120"
" Ext . Filter"
"Fast"
"120"
"120"
" Rec"
"110"
"110"
"Ext. Filter"
"Rec"
"120"
"120"
"Ext. Filter"
"Rec"
"70"
Input signal: 0.2 V, 1000 Hl.
Output voltage on "AC Output" socket: S V.
If necessary adjust P 801 (ZE 00941.
Connect
an Oscilloscape to Q 503, Q S04 (ZL 0032) and check that the !Wo rectified curves are of
the same height.
If necessary adjust P 803 (ZE 0094).
Change the signal frequency to 70 kH l and check the curves again.
If necessary adjust the height by C 820.
Frequency: 1000
Hl. Adjust the input voltage for an 8 dB deflection on 2209.
Check all anenuator steps
of RANGE (transparent) by camparison to the anenuator of the
Frequency Oscillator,
Tolerance:
0.2 dB (+ tolerance of Frequency Oscillator).
Frequency: 1000
Hl. Adjust the input voltage for an output voltage of S V on "AC Output"
socket.
Load the
"AC Output" with a resistar of 10 kD. and check that the output voltage is not de ·
creasing more than 0.2 dB.
Input signal: 7 V ±1 dB . 1000 Hl. (Corresponding to 17 dB above full scale deflection),
a. Disconnect the input signal by depressing "Oscillator Stop" on the Frequency Oscillator. When
releasing
"Oscillator Stop" the "Overload Output" should light up a few times.
b. Connect an Oscilloscope to "AC Output" socket and check that the signal is not limited,
Di
sc onnect input signal to 2209. During measurement 2209 should be in its case and connected to
ground.
Hum
from the DC converter (approx. 2 kHz) and 2nd and 3rd harmonie selectively measured max.
1.5
mV.
Noise (2-40000 Hz): max. 14 mV.
Hum: max. SO mV .
Noise: max.
300 mV.
4-2
2209-5. 72

BROEL & KJJER
Nrerum -Denmark Input Amplifier 2209.5
I mpedance Canverler
Atlenualor
Preamplifier
Overlood Indicalor
E.t.Filler In
-9.5 V --t--------,...-...,._--.----1-.:.:::...---,
.---.._ ...... - + 120 Y
,----,.-- + 50 V
Input
~
Y402
3,16Y'"
Ga in
Adjustment of P302: Symmetric Phase-Splitting
Actj
P303: Sensitivity on Overload
P901
Ref . Vollage
Simplified Diagram of Input Amplifier ZE 0014
The
midpoint of the output stage of the preamplifier IV 305
c' V 304c) should
be approx. 4 V
negative. IXC 0331)
If necessary change in value of R 30715.6-10 kQ) .
Input signal: Exactly 2.24 V
110 V - 13dB) at 1000 Hl .
Adjust P
301 "Gain Adj." for 7 dB deflection on 2209.
Adjustment
range for P 301: The total red scale area.
Adjust reference vo lt age P 901 (XC 0335) for a deflecti on to 50 on the red scale mV per N/m2
Icorresponding 7 dB).
a. Turn the screw for low frequency cut·off lon Connecting Board ZS 0187) fully clockwise.
Frequency: 1000
Hl. Adjust the input voltage for an 8 dB deflection on 2209.
Varv the frequency from 2 -
70000 Hl .
Deflection on 2209: 7 - 9 dB
(+ tolerance of Frequency Oscillator: 0.5 dB ).
If necessary the low frequency response can be corrected by adjusting the interrelations hip
between P 801 and P 802 IZE 0094) but in this case check item 4.2 again. The high frequency
response
can be corrected by changing the va lue of C 81910-10 pF).
Frequency response
for Inp ut Amplifier on "Ex\. Filter In" socket.
5 -
70000 Hl tolerance: 'O to -0 .5 dB
2 - 5
Hl tolerance: O to 1 dB
b. Turn the screw fully counter clockwise and check that the low er limit frequency is changed
from 2
Hl to approx. 15 H, .
5.1. DC-voltages
METER SWITCH:
"Rec"
5.2. Sensitivity -Reference
a. RANGE Iblack):
RANGE Itransp.):
Fl LTER SWITCH:
METER SWITCH:
"120"
"120"
"Lin"
"Fast"
b. RANGE Iblack)
to
" R ef"
5.3. Frequency Response
RANGE Iblack):
"120"
RANGE Itransp.):
"120"
FILTER SWITCH: "Lin" •
METER SWITCH:
"Fast"
• I,~I :e:
i :e :.
Frequency Oscillator
~
iii
:.•.:
~
2209
Valid
from ser i al no. 372528
2209-1.74
5-1

2209.5 Input Ampl lier
5.4. Attenuator
a. RANG E (black):
RANGE (transp.)
FILTER SWITCH
METER SWITCH
"120"
"120"
"Lin"
"Fast"
b.
RANG E (black) tl rough
all pcsitions
5.5. Output I
mpeda llCl
RANGE (black):
RANG E (transp.) :
FILTER SWITCH
METER SWITCH:
5.6. Overload
RANG E (black):
FILTER SWITCH
5.7. Noise-Hum
a.
RANGE (black):
RANG E (transp.l:
FILTER SWITCH
METER SWITCH:
03 in position:
b.
RANGE (black) te
RANGE (transp.)
c.
FILTER SWITCH
RANG E (transp.)
"120"
"120"
"Lin"
"Fast"
"110"
"Ext. Filter"
"Ref"
"Ref"
"Lin"
"Fast"
15 Hz
"60"
o
"30"
o
"A"
o
"lO"
Frequency: 1000 Hz. Adjust the input voltage for an 8 dB deflection on 2209.
Check all
attenuator steps of RANGE (black) by comparison to the attenuator of the Frequency
Oscillator.
Tolerance: ±
0.2 dB (+ tolerance of Frequency Oscillator: 0.2 dB).
Frequency: 1000 Hz. Adjust the input voltage for a 10 dB deflection on 2209.
Connect a 500
nresistor across "Ext. Filter In" socket.
Meter
deflection: 9.9- 10 dB.
Frequency:
1000 Hz. Adjust the input voltage for an output voltage on "Ext. Filter In" socket of
1.4 V ± 1 dB (corresponding to 17 dB above 0.2 V).
a. Check with an Oscilloscope that the output voltage is not visible distorted.
b. Check with an Oscilloscope that the rectified sine waves measured across C 310 are of the same
height.
If necessary adjust P 302 (ZE 0102).
Disconnect the input signal by depressing "Oscillator Stop" on the Frequency Oscillator. When
releasing
it again the "Overload Input" should light up a few times.
If necessary adjust P 303 (ZE 0102).
2209 Frequency
Analyzer
Connect an Input Adaptor JJ 2615 to Type 2209 and shortcircuit its input.
The apparatus must be in its case and evt. connected to ground.
Adjust "Gain Adj." for a deflection to 50 mV per N/m
2
Meter deflection: max. OdB.
Meter
deflection: max. OdB.
If the meter deflection exceeds the limit, check noise and hum for
Input Amplifier by measuring the output voltage on "Ext. Filter" socket. Check hum level
measured selectively at the fundamental frequency
of the DC-<:onverter (approx. 2 kHz) and 2nd
and 3rd harmonie.
Hum: max. 44
/1V.
Noise: max. 200/1V (Measured with Frequency Analyzer (2107) in lin. 2 - 40 000 Hz).
Output Amplifier check item 4.6.
2209-5.72
5-2

BROEL & KJ,lER
Nälrum - Denmark
Weighting Network 2209,6
6. l.
1000 Hz Level
a.
b.
RANGE (black):
RANGE (transp.):
FILTER SWITCH:
METER SWITCH:
FILTER SWITCH in
position
"A· B-C-O"
"120"
"120"
"Lin"
"Fast"
6.2.
Network Cu rves
a.
RANGE (black): " 120"
RANGE (transp.) :
"120"
FILTER SWITCH: "Lin"
METER SWITCH: " Fast"
~.
I~I
::.:;
. -1· .
•
• .• :
-.-
lO •
•
..
~•
®
~
I ®~ , ® I
® o(Ö)
;,i!.: ·' !-.}.
~
2209
Frequency Oscillator
Frequency: 1000
Hz. Adjust the input voltage to give exactly 8 dB def lec tion on 2209.
Check
that the deflection is 8 dB ± 0.1 dB in all positions.
If the dellection exceeds the limit sadjust
A curve by P 304 (ZE 0102)
B curve
by P 305
C curve by P 306
D curve by P 307
Frequency: 1000
Hz . Adjust the input vo ltage to give 8 dB deflection on 2209.
Check the
filter curves according to follo wing scheme.
I Curve
"d ..
Curve "A " Curve
"B" Curve "C"
Hz
OefJ .o n RANGE Oell.
on RANGE Oefl. on RANGE Oell. on RANGE RANGE
2209 (transp.) 2209 (tran
sp.)
2209 (transp.) 2209 (transp.) (black)
10
-2.2-1.8
90 1.7-5.7 110 -1.6-2.4
100 120
16
-0 . 7-3 .3 70
-2 .5 -1.5 100 -2.5-1.5 120 2.5--€5. 100 120
20
7.5-9 .5 70 2.8-4.8 100 0 .8-2.8
120 5.4-7.4 100 120
31.5 7.
6-9 .6 80 -0.1-1.9
110 4.0- 6.0 120 -0.6-1.4
110 120
125
1.4-2.4
110 3. 3-4.3 120 7. 3-8.3 120 1. 5-2 .5 120 120
500 4.3
-5 .3 120 7.2-8. 2 120 7.
5-8 .5 120 7. 5-8.5
120 120
lk
7. 9-8 .1
120
7.9-8.1
120
7.9-8 .1 120 7.9 -8 .1 120 120
2k 8.7-9.7 120
7.4-8.4
12 0
7.3-8 .3 120 5. 5-6.5
130 130
4k
8.5-9.5
120
6.8-7.8
120 6.
7-7 .7 120 8 .4-9.4
130 130
8k
6.4-7.4
120
4.5-5.6
120 4.5-5.5 120 8.5-4.5
130 130
20k
7.7-9.7
110
5.9-7.9
110 5.8-7.8 110 -1 . 1-0 .9 120 120
Valid
fr om se rial no. 372528
2209-5.72
6-1

BROEL & KJtER
N<I!rum -Denmark Layout Diagram and Parts List ze 0007
Input Stage
tt
~
~
I I
Attention: Do not open the preamplifier ZC 0007 uniess it is strietly neees-
sary_
After repair it is necessary to elean all the parts wi th a mixture of 10%
metylated alcohol and 90% Freon. When the eireuit is completely dry, and
elean, it should be eoated with a mixture of 4% silieone oil (f. in st. Waeher
WS 60) and 96% trielorethylene. Af ter eoating the eireuit is dryed at a
temperature
of 1200 C for one hour and immediately remounted_
CIRCUIT
COMPONENT TYPE
STOCK CIRCUIT
DIAGRAM
REF. DIAGRAM
REF.
REF_
Cl0l
Glass 1
nF /300 V CG 0001 R 107
C 102,103
Tantalum
6_ 8 I1
F/ 6V
CF 0030 R 108
C 104
Glass 300 pF/300 V
CG 0002 R 109
R 110
0103,104 Si. trans. NPN
2 N 4292 VB 0533
0105
Zener 56 V/4_5 mA
1 N 732 A OV 1327 V
101
0106
Si. trans . 150 V /0.3
A
BAX16 OV 0217 V 102
V
103
R 101 Carbon 1/8 W
5%
B_2Mn
RH 0910
R 102 10% 10Mn
RH 0902
R 103 5% 180
kn RA 0042
R 104 20% 1,8Gn
RH 0019
R 105
5% 3.3 kn RA 0005
R 106
47 kn
RAOO"
(/
@
COMPONENT TYPE
Metal 1/4 W
1%
22.1 kn
Carbon
10%
100Mn
Metal 1% 6004 n
2kn
FET
N-ehannel 2 N 4867 A
Si.
trans .
PNP
BCW 62 B
NPN
BCW 82 B
Printed Cireuit Board
Pr otectio n Cap
STOC\<.
REF.
RF 4221
RH 0907
RF 1604
RF 3200
VB 1037
VB 0111
VB 0578
XC 0330
DZ 9025
ZC 0007
2209 from serial no_ 496282
1. 74

BRUEL & KJJCR
Na!rum -Denmark Layout Di
agra m a nd Part s List
ZE 0094
Output Amplifiers
--c=J- R S ••
-41---- c h.
----jo&-- a s ••
O vs ..
I
I
I
I
I
I
-- - - ----- -e -
'"
.
o .
o
o-
o.
a.
o
g.
CIRCUIT
COMPONENT TYPE
STOCK
CIRCUIT
COMPONENT TYPE
STOCK
DIAGRAM
REF, DIAGRAM
REF,
REF. REF.
C
801 Electrolytic
33011F/l0V
a 0211 R 814 Carbon 1
/4 W 5%
10 l1
RB 11 00
C 802
Tantalum
22011 F/ 16 v CF
0005
R 815
82 kl1
RB 4820
C 803
6.8I1F/ 6 v CF
0006
R
816
10 l1
RB 1100
C 804 Electrolytic
40011F/ lOV
CE 0305 R 817 Metal 1% 100
kl1 RF 5100
C 805
Tantalum
lOOI1F/ 3 v
CF 0019
R 818 604
l1
RF 2604
C 806
3311
F/
l0V
CF 0034
R819 Carbon 5%
330 kl1
RB 5330
C 807 6.8I1F/
16 v CF
0035
R 820
1.5Ml1 RB 6150
C 808 15
11
F/ 16 V CF 002B R821 150
kl1
RB 5150
C 809 3311F/
lO V CF
0034
R
822
1
/8 W 10%
91 kl1
RA 0041
C
810 Ceramic 2.7
pF / 400 V CK
0270
R 823
1/4 W 5% 6.8
kl1
RB 3680
C 811
Tantalum lOO I1 F/ 3 V CF
0019
R 824
220 kl1
RB 5220
C 812 6.8I1F/ 16 V CF
0035
R 825
470 kl1
RB 5470
C 813.814 2.2I1F/
35 V CF
0022
R 826,827 270
l1
RB 2270
C 815
3311 F/ lO V CF
0034
R 828 Metal
1%
8.45kl1
RF 3845
C 816 Electroly tic
2211 F/ l00 V
CE 0616
R 829 90.9
kl1
RF 4909
C 817 Polyester 0.
68I1 F/ l 00 V
CS 0342 R 830 Carbon 5%
330 kl1
RB 5330
C 818 Ceramic
6.8 pF / 400 V CK
0680
R831 56
kl1
RB 4560
C819
Ceramic 4.7
pF / 400 V CK
0470
R832 10
kl1
RB 4100
C 820
Trimm er
3·8 pF
CV 0027
R 833 220
kl1
RB 5220
C 821
Tantalum
2,211F/ 35 V
CF 0022
R 834
330 kl1
RB 5330
C 822
Electr oly tic
2211F/ lOO V
CE 0616
R
835,836
270 l1
RB 2270
C
823
Ceramic 1nF/500 V CK
3100
R837
4.7 kl1
RB 3470
C 824.825
Pol yes ter 0.1 I1F/250 V
CS 0402 R838
2.2Ml1
RB 6220
R839 lBO
kl1
RB5180
P 801 Trimmer
Wire
500 l1
PG 1502 R840
4.7Ml1
RB 6470
P
802
5kl1
PG 2505 R
841
1/8 W 10"
10
3.9Ml1
RA 0039
p 803
Cermet
47kl1 PG 3471 R842 1/4 W
5%
1.5Ml1
RB 6150
P 804 Carbon 25
kl1
PG 3256 R 843 1/8 W 10"/,
3,9Ml1
RA 0039
0801.802
Si.
150V/300mA
BAX 16 OV 0217 V 806 Si. trans.
PNP
BC 179 B VB
0100
0803.804
100 V/225 mA
BAY 72 OV
0219
V 807 NPN
BF 337 VB 0552
oB05·808 150
V/300 mA
BAX 16 av 0217 V 808
BF 337
VB 0545
V 809
PNP
2 N 4289
VB 0058
R 801
Carbon 1/4 W 5% 22
kl1
RB 4220
V 810 NPN
BF 337 VB 0545
R802
270 kl1
RB 5270
V 811
BF 337 VB 0552
R 804 18
kl1
RB 4180
V 812
BF 337
V8 0545
R 805 Metal
1%
10 kl1
RF 4100
V 813
PNP
2 N
4289
VB 0058
R807 Carbon
5%
47 kl1
RB 4470
V 8
14
NPN BF 337 VB
0545
R 808 Metal
1%
10 kl1
RF 4100
V 815
BC 1091 3 VB 0047
R809 Carbon 5%
4.7 kl1
RB 3470
V 816 BF 337 VB 0545
R 810 220
l1
RB 2220
R 811
270 kl1
RB 5270
Meter Re s et SwiIch NN
0019
R 812
lMl1
RB 6100
R 813 Metal
1%
3.24 kl1
RF 3324 Pri. led
Circuit B oa rd
XC 0949
ZE 0094
1.74
2209 fr om se rial no. 496282

BROEL & KJtER Layout
Diagram and Parts List
ZE 0095
Nrerum -Denmark Meter Circu
it
--c:=::r- R 6 ••
--H-- c 6 ..
O V 6'1('1(
CIRCUIT
COMPONENT TYPE STOCK CIRCUIT
COMPONENT TYPE STOCK
DIAGRAM
REF.
DIAGRAM REF.
REF. REF.
C 601,603 Tantalum 3311FI
lOV CF 0034 R 611
Metal 1/4 W 1% 26.7
kD RF 4267
C 604 Polyester
0. 15 11 F /l00V CS 0337 R 612 29.4
kD RF 4294
C 605 Tantalum 6811FI
3V
CF 0011 R613 Carbon 5% 1 kD RB 3100
R614
68kD RB 4680
P
601
Trimmer Cermet 22 kD PG 3221
R615,616
10 D RB 1100
P 602·604 10
kD PG 3109 R617
18kD RB 4180
R618 33
kD
RB 4330
Q601 Si. trans.
NPN
SF 115 VB 0533 R619 47
kD
RB 4470
R620 39
kD RB 4390
R
601 Carbon 1/4 W
5% 100 D RB 2100
R602 Metal
1%
3.92 kD RF 3392 V
601
Si. trans. dual NPN BCY 87
VB 5302
R603 18,2
kD RF 4182
V602
PNP
2 N 2894
VB 0093
R604 Carbon
5% 33 kD RB 4330 V 603
PNP BC 179 B
VB 0100
R605 220
kD RB 5220 V 604 FET N·channel E 102
VB 1053
R 606 68 D
RB 1680
R 607
18MD RH 0908 "4-pin Connector
Jp 1401
R608 Metal
1%
100kD
RF 5100
R 609 18.2 kD RF 4182 Printed Circuit Board XC 0950
R 610 24.9
kD RF 4249
ZE 0095
2209 from serial no. 496282
1.74

BROEL & KJA:R
Nrerum -Denmark
Lay out Diagram and Parts List
ZE 0102
Preamplifier, Filter
-c:::J-- R l. x
@-- R hx
--fl--- c h x
-tÄ- O lxx
O V lxx
CIRCUIT
COMPONENT TYPE STOCK
DIAGRAM
REF,
REF.
C30l Tantalum 6. 811F I 6 V
CF 0006
C 302
Electrolytic 1000 I1F I 2.5 V
CE 0210
C 303 2211F I 25 V
CE 2002
C
304 4711
F/
l0V
CE 0204
C
305,306
400l1FI 10 V
CE 0305
C 307-309
4711F I lOV
CE 0204
C 310 Polystyrene
400 pF /125 V
CT 1011
C 311,312 Polycarbonate 100 nF/250 V
CS 0402
C 313 Polystyrene
20 nFI 63 V CT 1125
C 314 Polycarbonate 0.47
I1F / l00 V CS 0234
C 315 Ceramic 100
pF / 400 V CK 2100
C
316 Polystyrene
5.111F I 63 V CT 1124
C 317 Polycarbonate 47 nF/250 V
CS 0235
C 318 Ceramic
82 pF / 400 V CK 1820
C 319,320 Polystyrene 20 nFI 63 V CT 1125
C
321
Tantalum
6.811
F/
16V
CF 0035
C 322 Polystyrene 5.1
nF I 63 V CT 1124
C 323
390pF / 125 V CT 1120
C 324,325 5.1
nFI 63 V
CT 1124
C 326 Tantalum 3311FI
lOV CF 0034
C 327 Polystyrene
820pF / 63V CT 1121
C
328,329
390 pF/ 125 V CT 1120
C 330,331 Tantalum 6.811FI 16 V
CE 0035
C 332 Polystyrene 2.4
nF I 63 V
CT 1129
C 333
2nF / 63V
CT 1123
C 334 Tantalum
3311F I 10 V
CF 0034
P 301
Tr immer Wi re 1
kil PG 2106
P 302 303 Cermet 25 k
il PG 3256
P 304-307
25 kil
PG 3254
0301 - 303 Si .
150V / 300mA
BAX 16 OV 0217
R301 Carbon 1/4 W 5%
180 kil RB 5180
R302 2.
2MIl
RB 6220
R 303
lMIl RB 6100
R 304 270
kil RB 5270
R 306 Metal 1% 182
Il
RF 2182
R307 Carbon 5% 6.8
kil
RB 3680
R308 Metal 1% 22.1
kil
RF 4221
R 309
Carbon 5% 47
kil
RB 4470
R310
33 kil
RB 4330
R311 100
kil
RB 5100
R312
680 Il
RB 2680
R313
470 Il
RB 2470
CIRCUIT COMPONENT TYPE STOCK
DIAGR AM REF,
REF.
R314
'- arbon 1/4 W 5% 220
Il
RB 2220
R 315 10 k
il RB 4100
R316 100
kil
RB 5100
R 318
:120 kil
RB 5220
R319 100 k
il
RB 5100
R320 22
kil RB 4 22 0
R321,322 47
kil
RB 4470
R323
2.2MIl
RB 6220
R 324,325 4.7M
Il
RB 6470
R326 1.
5MIl
RB 6150
R
328
1.5MIl RB 6150
R329 1/8 W 10% 3,9M
Il RA 0039
R 330 Metal 1/4 W 1%
475 Il
RF 2475
R331 ,332 215 k
il
RF 5215
R333
18.7 kil
RF 4187
R334
59 k il
RF 4590
R335 2.26
kil RF 3226
R336 150
kil
RF 5150
R337,338 59
kil
RF 45 90
R339
68 ,1k il
RF 4681
R343 Carbon
5% 27 kil
RB 4270
R344 Metal
1% 63.4 kil
RF 4634
R345 11.8
kil
RF 4118
R346 68.1
kil
RF 4681
R347 37.4 k
il
RF 4374
R 348 Carbon 5% 1
kil RB 3100
R349 Metal 1% 100 k
il
RF 5100
R350,351 82.5 k
il
RF 4825
R 352 68.1
kil RF 4681
R353 100 k
il
RF 5100
R 354 Carbon 5%
lMIl
RB 6100
R355 10% 4.7M
Il RB 6470
R356
5%
820 kil RB 5 820
R357 Metal 1% 39.2
kil
RF 4392
R358
11 kil
RF 4110
R359,360 15
kil RF 4150
R361 75 k
il RF 4750
R363 Carbon 5% 1
kil RB 3100
R 364,365 Metal 1% 64,9
kil
RF 46 49
V 301,302 Si. trans. NPN
BC 174 B
V80537
V 303-306
PNP
BC 179 B VB 0100
V 307 NPN
BC 109 B VB 0047
V 308
NPN BF 337 VB 0
052
V 309-312
NPN
BC 109 B VB 0545
XC 0331
Printed
Circuit Board
ZE 0102
2209 from serial no. 49 6282
1.74

BROEL & KJA:R
Ncerum -Denmark Layout
Diagram and Parts List
ZG 0071
Power Supply
/
Adj. of I
'. of 49 V.
Pol.
VoIIQg" ,
~R9 ••
1
I
---1f--- c 9 xx
1
l
~a9 ••
I
O
Vh.
I
l
•
I
I
Adj. of I
-9 .5V I
I
I
I
I
I
I
I
I
I
I
1
1 _____ _
CIRCUIT
COMPONENT TYPE STOCK
CIRCUIT
COMPONENT TYPE STOCK
DIAGRAM
REF.
DIAGRAM
REF.
REF. REF.
C 901 Electroly
tic
220 !.IF/ 6.3 v
CE 0208 R
901
Carbon 1/4 W
5%
1.2 k!1
RB 3120
C 902 470
!.I F/ 10 v
CE 0305 R902 220 !1
RB 2220
C 903 Ceramic 2.2 nF/
l00 V
CK 9103 R903 5.6 k!1
RB 3560
C 904
Electrolytic
10!.lF/25V
CE 0416 R904 15 k!1
RB 4150
C 905
47 !.I F/ 63 v CE 0509 R906,907 1 k!1
RB 3100
C 906 10!.lF/
25V CE 0416 R909 10 k!1
RB 4100
C 907 6.8 !.IF/ 40 v
CE 0453 R910
lk!1
RB 3100
C 908 22!.1F/100 V
CE 0616 R
911
270 k!1
RB 5270
C 909 Polyester 47
nF/250 V
CS 0063 R912
lk!1
RB 3100
C 910 10
nF/400 V CS 0101 R913,914
470 !1
RB 2470
C911 100
nF/250 V CS 0402 R916
lM!1
RB 6100
C 912
Electrolytic
100!.lF/ 6.3 V
CE 0207 R917 3.9 k!1
RB 3390
C 913
33!.1F/160V
CE 2038 R918 1 k!1
RB 3100
C 914 Polyester 47 nF/250 V
CS 0063 R919 1/8 W
10%
10M!1 RA 0025
C 915 Polyester
10nF / 400V CS 0101 R920 1/4 W 5% 4.7M!1
RB 6470
C916 47 nF/250 V
CS 0401 R922
1/8 W
10"10
10M!1 RA 0025
R923 1/4 W
5%
10 k!1
RB4100
P 901, 902 Trimmer Cermet 100
kh
PG 4108 R924 1.5M!1
RB 6150
P 903 Carbon 2M!1
PG 5202 V
901
Si. trans. NPN
BC 109 VB 0047
P 904
lM!1
PG 5102
V902 PNP
BC 179
VB 0100
V 903.904
NPN
BC 109
VB 0047
0901 Si.
150 V /300 mA BAX 16 OV 0217 V 905,906
PNP
BC 179 VB 0100
..
0902
0903
Zener
Si . 5·6.2
VI 5 mA
150V/300 mA
ZG 5,6
BAX16
OV 1105
OV 0217
V907
V 908
Ge. trans.
Si. trans.
PNP
NPN ASY 80
BF 337
VB 0069
VB 0545
0904·907
Ge.
115 V/150 mA
OA 85 OV 0085 V909·911
Ge. trans.
PNP
ASY 80 VB 0069
0908·914
Si.
150 V/300 mA
SAX16
OV 0217 Converter Transformer
LB 0630
0915
Zener 220
V/ 15 mA
MZ 22 SA
OV 1326 10·pin Connector
Jp 1001
lG
OG?l
Printed Circuit Board XC 0335
1.74 2209 from serial no. 496282

BROEL & KJJER
Na!rum - Denmark Layout Diagram and Parts List
ZL 0032
RMS Circuit
R S ..
-c::J-
---f"L-
as ..
()
V5 ..
CIRCUIT
COMPONENT TYPE STOCK
CIRCUIT COMPONENT TYPE STOCK
DIAGRAM REF.
DIAGRAM
REF.
REF. REF.
C
501
Polystyrene 510pF/63V CT 1135 A 507 Metal 1/4 W
1%
31.6 kQ RF 4316
R 508
11.8kQ
'RF 4118
P
501 Trimmer Carbon 2kQ PG 2206 R 509
11 kQ RF 4110
R510 5.23
kQ RF 3523
0501·504 Si. 100 V/200 mA BAY 72 OV 0219 R
511
3.16
kQ
RF 3316
0505 Si. 15 VI 30 mA
SFO 121
OV 0100 R512 3.01
kQ AF 3301
0506 Zener 6.2 VI 35 mA ZP 6.2 OV 1334 R513 1.27
kQ RF 3127
0507
Si. 100 V/220
mA BAY 72 OV 0219 R514
2.21 kQ RF 3221
R515
422
kQ RF 2422
V 501,506 Silicon
PNP BCW 62 B VB 0049 R516
1.1 kQ RF 3110
R517 100 Q
RF 2100
R
501 Metal 1/4 W 1% 100 Q RF 2100 R518 20
kQ
RF 4200
R502 5.23
kQ RF 3523 R519 15.4 Q
RF 1154
R503 24.9
kQ RF 4249 R520
1.1 kQ RF 3110
R504 8.06
kQ
RF 3806
R505
2kQ RF 3200 Printed Circuit Board
XC 0951
A506 68.1
kQ
RF 4681
ZL 0032
2209 from serial no. 496282
1.74