Bang & Olufsen BEOLAB 150, TYPE 1721 User guide

BatU&0uberl
BEOLAE
150,TWE L721"L722,L723,1724,1725
II{DHOLD
Diagrammer ...:... . 4-48
Halvlederoversigt. .. 4-50
ElektriskstyHiste .. 4-52
MekaniskstyHiste .. 4-54
Justeringer ... 4-57
Tekniskespecifikationer
.... ...... 4-57
Servicetips ... 4-58
Isolationstest..... .. 4-61
4-48
CONIENTS
Circuitdiagrams
Semi-conductorsi
....
List of electrical
parts .
List of mechanical
parts .
Adjustnents
Technicalspecifications
....
Servicetips
.. ....... 4-58
Insulationtest .. .... 4-61
4-48
4-50
4-52
4-54
4-57
4-57
DIAGMIT{FORTU$ING
Pi diagrammet er derangivettypenumre
pi transi-
storerogIC'eri detilfelde hvortypenummereter
entydrgtfor komponenters
placering
i kredslobet
-
f,eks.TR20/BC5578
Hvispositionsnummeret erefterfulgtafenstjerne
skal reservedelsnummeretbenyttes,dadenne
komponenterspecielt
udvalgt
- f.eks.TR1021
Koordinatsptem
Destsrste
printplader
erforsynetmedetkoordinat-
system.
Komponenterne
pl disse printplader
er pA
diagrammet
forslmetmedenkoordinatbetegnelse,
somforteller i hvilketfelt pi printpladen
deer
placeret
(mindre
skrifftypeend
positionsnummeret
-
f.eks.B3).
kdningsfoftindels€r
Ledningsforbindelser
pi diagrammeter samlet
i
"bundter*.
Deenkelteledningererforsynetmed
koder,
derfortaller hvortil degtr.
INTERNFORBINDELSE
PAENDTAGMMSIDE
E)(PIITNATION OF DIAGRAM
Type numbers of transistors and IC'shavebeen
indicated on the diagramin those cases
where the
typenumber
is unambiguousfor the positionof the
componentin a circuitry - e.g.TR20/BC5578.
If the positionnumber
is followedby anasteriskthe
sparepart number must be used becausethis
componenthasbeenexpecially"selected
- e.g.
TR102*.
System of Co-ordinates
The largest PC-boards
havebeenprovided with a co-
ordinate system.The componentson thesePC-boards
are provided with a grid referenceon the diagram
indicating in what gnd they are positionedon the PG
board (smaller typing than position numbers - e.g.
B3).
Wiring C.onnections
The wiring connections
on the diagram are
assembled
in "bundles".The individual wires are
codedto indicateto where they are leading.
INTERNALCONNECTION
ONONE
DIAGMM PAGE
Internal connectionson a diagram pageare
indicatedby a number.The bendof the wire indicates
in which direction the other end of the wire mav be
found.
llrl
1220n1n
\\//
Interne forbindelser pi en diagramsideangivesmed
et tal. Knakket pl ledningenviser i hvilken retning
denandenendeaf ledningenfindes.

4-48
Forsyningsspeqdingetr Supply Voltage
En pil og spandingen viser, hvor forsyningsspendiq- An arrow and the voltageshow where the supply
gernegfr ind i et prinl voltagesare fed to a PCB.
Eksempel:(7 CON.)feks. ved siden af forsynings- Example: (7 CON.)next to the supply voltage
spendingen angiver det antal stedet,spandingen gtr indicatesthe number of placeswhere to find the
ind pi dennediagramside. voltagesin this diagram.
Symbol for sikkerhedskomponenter for Safety Components
Ved udskiftrting af komponentermed dette symbol When replacing componentswith this symbol compo-
skal der anvendskomponentermed sammereserve- nentswith identical part numbersare to be used.
delsnummer.Den nye komponent skal monterespi The new componentmust be fitted in the sameway
sammemtde somdenudskiftede. asthe onereplaced
uArJBBrnqCBrsBn MEAST'RING
coNDITIoNS
Alle DC spandinger er milt i forhold til stel, All DC voltageshavebeenmeasuredin relation to
medvoltrneter med en indgangsmodstand
pA ground with voltneter with an input resistanceof
10Mohm. 10Mohms.
Spendingerneer milt uden signaltilforing. The voltageshavebeenmeasuredwithout any supply
of signal.
\ 4-48
d-

4-49
DIAGMM !]
4-49 -4.
r t002&il r
Lm(/AUII!/OFF 3
o6oE
)t SlBr
cZtsl
n nzn-f
fr4
I
l-
I
/i\--
I Pl- 7 Pr-1
-
(3coN.) i-
-l6V l5V t'
T1.'*-.*
-ll-
r/r A-
*r l IPr-r'
A
-lsv 6v
I
I
P|.t3
I
'tsv
(7
CON.)
-t5v
(6
CON.)
?2-6
E-
a-
-
-
PF3 PFN
]7
l'''
P2-7
-4
t-
JI I
-'.-
I ;v'
I
['
t0
-{ tsv
I r,tAx/MtN/uN
IuLl€D/t{rx
I l--
P3 szAr 3P S3Al
{' * ,{.u--
l5v
l-llJ t9
6Tl . E013359
612
r 8013370
LINEII{PUT
(r
t
A}IPL. LEVEL
INPUT
l-
I f -[lv J BC51t
iT
,_

4-49 Baru&OuHt
[--E: s--l zsr
I ooo o t2s2
| 66t 6 |
zsr
Ilfr 5S/1723
EtPbnqtlon oalho ts ryn$ob ed h thGst:
E dmlbn dc synldcs dr tudbb utilirts dqm l'qppoEil:
w9rffi/|ta
ErpbElion of lht le iynbols @d h thc et:
Expbmiin d6 sy[$olrs du tusibl. utili3bs dc foppqFil:
Rtpbccwith $m type l5Omitliqrpe.s
250Elts 3loweihg fts.
RcmCcr pqrh tusilt de mm typ. rets.d!
etde!5otrilloD€E 250wlb.
lR7
8C5584
fr2l
fln
fln
.ITA
1t?5
oity
ffi$'|Ht
;H'l*"
l"

Bang&0uHt
SEITfiCOITDUCTORS
Transistors
4-50
1TR3 %832039624 MPF4392 1TR23 8320646
t$4 BF858
24 2N4392
24 2N5639 1TR24 8320643 2SC2238A
1TR6 832%il 17 BF423 1TR25- 8320645 2SC3281
1TR27
1TR7 832015220 BC212B|BK
17 BC212BL 1TR28 8320646
tt4 BF858 .
20 BC
2518
18 BC3078 1TR29 2SA968A
20 BC
5578
27 2SA
844 1TR30- 2SA1302
1TR32
1TR8- 8320641 sc 2240
GR
lTRlO 832010820 BC1728
2TR2 20 BC1838/BK
lTR1l 832010820 BC1728 17 BC1838L
M BC1838/BK 20 BC2388
17 BC18381 20 BC5488
20 BC2388
20 BC
5488 2TR3 832059520 BC
337-40
1TR12 832015220 BC212B/BK 2TR4 832U52
m BC ?|AB/BK
1TR15 17 BC212BL 17 BC212BL
20 BC2518 20 BC
2518
18 BC3078 18 BC3078
m Bc557B 20 BC5578
27 2SA
844 27 2SA844
1TR16 8320454 17 BF423 2TR5 832010820 BC1728
2TR6 M BC183B/BK
1TR17 832010820 BC1728. 2TR8- 17 BC1838L
20 BC183B/BK 2TR1O m Bc238B
17 BC183BL 20 BC5488
m Bc238B
20 BC5488 7TR1- 'a8320396
24 MPF4392
1TR18 8320152 20 BC2lzBtBK 24 2N4392
17 rc212B,L
20 BC2518
18 BC
3078
m Bc5578
8320642
8320644
2TR1
27 2SA844
7TR3 24 2N5639

4-51
IC,s
Diodes
Bang&0uHl
t834O202 loil CD/t066BCN 8340240
12l! 1n 320T-15
102 HEF
4066
BP 123 MC7915CT
102 MC14066BCP 123 UA7915UC
102 MSM4066RS
1tc2 8340763 138 1f353-TL072 8340048
10i3 MC1458CP1
103 MC1458
N
1lc3 8340048 10ll MC1458CP1 1(xl MC1458P
lGt MC
1458N 103 SFC
2458DC
103 MC1458P
lGt SFC 2458DC 8340054
19 MPSA13
1tcs 8340004
105 UA 7815 19 TPSA13
105 UA
7815
UC
105 LM340T-15
8300466 8125C1500 8300058217 SFD
184
209 1N4148
1D2- 8300058217 SFD184 2D7 215 1N4148
1D12 ztg 1N4148
215 lN 4148 4D1 8300058
217 SFD'r84
1Dl5 8300409 214 BAV20-25 zr9 1N4148
215 lN 4148
1Dl6 8300541 z3v3
1D17- 8300058 217 SFD 184 5D2 8300497 KBU
6D
1D20 209 1N4148
215 1N4148
1D21 8300407
209 B7J79B12
209 BZ€3B 12
209 7PD12V
*
f
betyder at statisk elekhicitet kan odelegge komponenten.
indicatesthat static electricity may destroythe componenl
bedeutet,da8statischeElekfrizitiit die Komponentezersttiren kann.
signigr que6lectricit6 statiquepeut detruire le composanl
Specieludvalgt eller bearbejdeteksemplar.
Speciallyselectedor adaptedsample.
Speziellausgewfiltes und bearbeitetsExemplar.
2tc1
5tc1
1Dl
A
A
A
.A

Bang&Oubsl
LIST OFELECTRICALPARTS
Standardresistors:
Resistors5o/oL/2W
4-52
Resistors5o/o1/4W
Amplifier, 8OO2915,PCB1
Raistatsnotmentionedarestandardraistots
5020363 51.1
ko 1%1/4w
5020126 U3kol%1/4W
5020126 113 ko l% 1/4w
5020363 51.1ko1%1/4W
5220036 330ko l0%1/2W
5020200 2.1kaWoL/4W
5020200 2.1kaLoh
l/4w
5370351 220o20qfro.LW
5020127 l0 ka 5%
lW
R79
R9s
R1
R4
R8
R11
R35
R56
R57
R59
R73
5020633
5370341
R99 5100203
Rl00 5100203
R101 5100203
R102 5100203
R103 5100203
Rl04 5100203
150o 5%0.35W
100o 20%0.1w
0.47a l0oh2W
0.470l0E62W
0.47o l0c{o2W
0.47o l0o/o?W
0.47a tDVo2W
0.47
aL0Eb2W
c1
c2
c3
u
c5
c6
c7
cl0
cl1
cl3
c14
cl5
c16
ct7
cl8
cl9
c20
czr
c22
c25
4200477 4.7
yF
2Q%
25Y
4200477 4.7
vF20%25Y
4100232 100pF 5%63V
4000136 22
pF5%
63V
4200423 22yF20%50Y
4010064 560pF10%63V
4010064 560
pF100/o63V
4010041 10nF
-20+80%
40V
4010041 10nF-20+80%
40V
4130179 100nF200/o63V
4200431 10pF20%16V
4130179 100nF20%63V
4130179 100nF20%63V
4130179 10OnF200663V
4200311 220
pF
-10+100%
40V
4200509 33pF 20%25V
4200311 220uF
-20+100%
40V
4200509 33rrF 200625V
4200704 470uF2W625Y
4200431 10pF20%16V
c26
c27
c29
c30
c31
c32
c33
c34
c35
c36
c37
c38
c39
c40
c45
c46
a7
c48
c49
c50
4100234 220pF5%63V
4200476 0.47uF20%50V
4200665 470uF20%6.3V
4010027 1 nF 10%63V
4200652 100
pF20%100V
4010061 2.2nF10%63V
4010061 2.2nF10%63V
4010061 2.2nF10%63V
4003059 22pF5%500V
4000020 4.7
pF0.25 pF63V
4010063 4.7nF 10%63V
4010024 470pF109663V
4200478 100
pF20%
10V
4010063 4.7nF109663V
4130195 ..22 nF59b250Y
4130155 1uF 10%100V
4130308 220nF10%
63V
4012002 10nF-20+50% 400V
4130155 1pF
10%
100V
4130308 220nF10%63V
H}
P5
PI
n7220143 Plug 14pol 7220203 Plug 10/9 pol 7220313 Plw 3 pol.
7220L96 Ptug4/3 pol.
x1 x10 x100 x1K x10K x100x xlM x10M
1.0
t.2
1.5 5011406 5010727
5011000
5011001
5011002
5011013
5011014
5011015
5011028
5011030
5011031
5011044
5011045
5011046
5010313
5011058
5011059
5011069
5010421
5011071
5011083
1.8
2.2
2.7
5010857
501r33550L0787 5010708
5010803
5011016
5010815
5011018
5011033
5011034
5010055
5011047
5011048
50110495011061 5011062
50Lt072
5011074
5011075
3.3
3.9
4.7
5010255
5010765
5011007
5010782
5011009
5011019
5011021
501t022
5011037
5010700
50100355011051 5010036
5011063
5011065
5010381
5010392
5011078
5.6
6.8
8.2 50108745011010
5011011
5011012
5011023
5011024
5011026
5011041
5011042
50110435010810 5010038
5011066
5011067
5011068
5011079
5011080
5011081
x1 xlo x100 xlK x10K x100K x1M x10M
1.0
t2
1.5
50105925010506
5010595
5010468
5010065
5010128
5010057
5010040
5010153
5010247
5010059
5010046
5010053
5010049
5010047
5010063
5010054
5010665
5010093
5010638
1.8
2.2
2.7 5010682 5010925
5010822
5010448
5010403
5010362
5010092
5010000
5010066
5010064
5010298
5010135
5010079
5010141
5010072
5010120
5010083
5010791
5010245
5010431
3.3
3.9
4.7 5010888
5010253
50L0622
5010411
5010044
5010070
5010058
5010076
5010069
5010048
5010075
5010060
5010045
5010117
5010073
5010077
5010848
5010714
5.6
6.8
8.2
5010706
5010904
5010880
5010151
5010039
5010056
5010067
5010144
5010068
5010041
5010052
5010154
5010061
5010062
5010091
5010071
5010074
5010505
5010658
L1 6850114 Coil0.5
rrH

4-52
Control,8OO28it|1,
PCB 2 c1 420093s 1
pF
-10+50%
6BV c9 4oroozl 1nF10%63v
C2 4130310 1pF
l0%50V CrO 4200333 1pF-10+50%
63Y
C3 4070027 1nFl09(l63V Cl1 4010041 10nF-20t80% 40V
C4 4200016 22
FF-10+50%
25V Clz 4010041 I0 nF-20+80%40V
C5 4000057 47
pF5%
63V C13 4010041 10nF-20+80%40V
CO 4000057 47pF59663V Cr6 4010061 2.2nF10%63V
C7 4L30223 47nPl0% 63V Clz 4010061 2.2nF10%63V
C8 4130223 47nF10%63V
51 7400350 Switch
52 7400350 Switch 53 7400350 Switch
Fuses,627LO4O,FCB3
tJpe 6601/02 Fl 6600009 Fuse2A250v
Fuses, 6270343, FCB 3 tJpe 6605 F2 6600070 Fuse40MA250v
7200052 Fuseholder
4-52
Fuses,6270342, PCB3
ttrpe6603/04
Relay,
80o12784,
PCB4
Signal
level,80O2916,PCB
7
Fl 6600019 Fuse5A250V
FZ 6600069 Fuse150MA250V
7200052 Fuseholder
RLI 7600069 Relay
3917109 Dampingmaterial
Cl 4l303ll 680nF10o'b63V
CZ 4130309 330nFl0%
63V
C3 4130310 1uF10%50V
Pl 7220544 Plug5 pol.

4-53
MEKANISKSTYIGISTE
LIST OFUBCIUMCNT, PARTS
4-53 4-
?'o
I
toor-4
,t-N#
,o.r____i_t
*r--u
soos
cd+A
-t
9029
9030
9031
9032
9033
903t,
7
s
9003
9001
9037
9038
9039
9006
9007
9015.
9008
9009
9017

4-53
2938154Bssning
3152455Holder f. eleltrolytter
3164608I^lgf.elektrolytter
2938154Bssning
28L9157 Bsjle
3152063Holder f.PCBI
2542669 Vinkel f. FCB1
3947202 Skumtapei metermAl
7210521 Stikdlse 4 pol.
72L0567 Stikdlse phono
3164627 Daksel f. stikbrsnd
2076007 Gevindstykke
3L62266 Sammenspendingsstykke
2938154 Bssning
3164648Dakpladem.
tryb type1721
3164649Delqlade m.trylstype 1722
3164650Dakpladem.tryk,type1723
3164651Dalrpladem.tryk type1724
3L64652 Dakplade m.tryk, type 1725
3152507 Ledningsholder
3L64602 Dakplade
3152063Holderf. EB 1
2542669 Vinkel f. PCB1
3947202 Skumtape
i metermAl
2542668 Vinkel f. stik
7210509 Dobbeltstikterminal
3458492
Top-
2076007 Gevindstykke
3164603Dakplade
3164602Dekplade
2568847 Koleprofil
3452527 Bagstykke,betjening
3034066l"ls f. lfu
28l2LL3 Trykfeder
3168687Betjeningspanel
3L62268 Sammenspandingsstykke
2776037Knapomskifter
2776037 Knapomskifter
3454443 Mellemselidion
72L0595 Bosning,rod
7210596 Bosning,sort
72tL047 StikdAse2 pol.DIN
3454444 Bundplade
722059L Kortslutningsstik
3302426 Isolationsstykke
3947202 Skumtape i metermAl"
til isolationsstk
BatU&OtM
Bushing
Holderfor electrolytes
Coverfor electrolytes
Bushing
Clamp
Holderfor PCBI
Bracketfor FCBI
Foam
tapeby the meter
Socket
4 pole
Phonosocket
Coverfor socket
Thredded.piece
Assembling
piece
Bushing
Coverplatewith print, type L72L
Coverplatewith print tyP- 1722
Coverplatewith print type L723
Coverplatewith print WW 1724
Cover
platewith print, tyw 1725
1{ireholder
Cover
plate
Holderfor FCB 1
Bracketfor PCB1
Foamtapeby the meter
Bracketfor socket
Doublesocketterminal
Top
Threaded
piece
Coverplate
Cover
plate
Heat
sink
Rearcover,control
Lockfor lid
Pressure
spring
Controlpanel
Assembling
piece
Switchbutton
Switchbutton
Intermediate
section
Bushing,red
Bushing black
Socket
2 poleDIN
Bottom plate
Short-circuitplug
Insulationpiece
Foamtapeby the meterfor
insulation
piece
PCBfor socketterminal
9001
9002
9003
9004
9005
9006
9007
9008
9009
9011
90t2
9013
9015
9017
9018
9020
9022
9023
9024
9025
9027
9028
9029
9030
9031
9032
9033
9034
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048 6141199PCBfor stiliterminal
01Modul8002915PCBforstarker PCBamplifier
02Modul8002831PCBbetjening PCBcontrol
03Modul
6271040
6270342
6270343
7200052
PCBsikringer,netlednirig
typel72l/22
PCBsilrringer,netledning
type 1723124
PCBsikringer,nettedning
typel725'
Sikringsholdere
PCBfuses,mainslead
tyw L72l/22
PCBfuses,mainslead
typeL723/24
PCBfuses,mainslead
Ww1725
Fuse
holders
04Modul 8002i784PCBrele
3917109Dampemateriale PCBrelay
Dampingmaterial
05Modul8002832PCBnetdel PCB
powersupplyunit
06T1 8013369Transformator,
type172l/22/25
8013375Transformator,type1723
8013376Transformator,type1724
Transformer,tyw L72L
/
22
/
25
Transformer,
ffie 1723
Transformer,f.we 1724

Batg&0rftqt
Oversigt
skruer,skiver m.m.
Sunreyof screws,
washersetc.
06T2 8013370
80t3377
06c1 1200653
06c2 4200653
3917109
Transformator,
type172l/22/23/25
Transformator,type 1724
10000
pF2090
80V
10000
rrF
20%80V
Dampemateriale
I
2
3
4
5
6
8
I
10
13
14
15
t7
18
19
2013208 SlaueM 2,9x 9,5
2039027 SkrueAM 3 x 6
2015088SkrueM 3,5x 16
2015116Skrue
3,5x 25
20L5201 SkrueM 3,5x 9,5
2039026 SkrueAM 3 x 4
2039028 SkrueAM 3 x 8
2015008Skrue
U 3,5x 13
2039014
Skrue
AM 3x 20
2015115SkrueM 3.5
x 50
2013017 SkrueM 2,9x L3
2380011Mstrik M3
2380016Mstrik M4
2624013
Skive
2625003 Stjerneskive
7530111Loddeflig
ScrewM 2.9x9.5
ScrewAM3x6
ScrewM3.5x16
Screw3.5x 25
ScrewM3.5x9.5
ScrewAM3x4
ScrewAM3x8
ScrewU3.5x13
ScrewAM3x20
ScrewM3.5x50
ScrewM2.9x13
Nut M3
Nut M4
Washer
Toothlockwasher
Soldertag
Ikke viste dele
Parts not shovm
3170169Glimmerskive
6275627 Ledningsbundt
m.DIN stik
339L822 Ydereske
3397597Skumemballage
3946038Foliei meter
Micawasher
Wire bundlewith DIN plug
Outercarton
Foam
packing
Foil by the meter
4-54
Transformer,
typeL72l/22/23/25
Transformer,type1724
10000
pF
20%
80V
10000uF20Vo80V
Dampingmaterial

4-55 Bang&Oubst
JUSTERINGER ADJUSTMENTS
Toqgangsxstrom No-load crurent
Tomgangsstromjusteres medensforsterkeren er Adjust the no-loadcurrent while the amplifier is cold
kold og udensignal tiliort andwithout any supply of signal.
Haittaler mi ikke vare tilsluttet The loudspeakersmust not be connected
to the
amplifier.
DC millivolfineter tilsluttes over 1R103/1R104. Connect
theDC millivoltneter over1R103/1R104
1R95
justeres til 30 mV. Adjust 1R95
to 30mV.
Offset
DCvoltnetertilslutteshojttalerudgangen
1R59
justeres
til 0V.
Offset
Connect
theCDvolfrneter
to theloudspeaker
output
Adjust
1R59
to 0V.
TECHMCAL SPECIFICATIONS Power
output
20-20,000
HzIHF 1x 150*att"rgohrs
Power
outputRMS
DIN/IEC 1x'175
watts/8
ohms
Power
outputmusic 1x 225watts/8
ohms
Totalharmonic
distortionTHD <0.015%
Intermodulation
distortionIHF <0.02%
Wideband
damping
factorIHF 150
Dynamic
headroom
IHF >1.5
dB/8ohms
S/NA-weightedlWlHF >78
dB
S/NA-weighted
150
W>100
dB
LINEinput 80mV/1W,
1Vl150
W,
22kohms,
phonoplugs
Speakerinput 800mV/1W
10V/150
W,15
kohms,
DIN4-pin
orspringloaded
contacts
Bass
levelswitch Linear,
+3dB/40
Hz,+6 dBl40Hz
Sensitivity
switch 0 dB,
-3dB,
-6dB
Power
supply 1721:220Y
172211725:24OY
1723:120Y
1724:
1OOY
Powerfrequency 50-60Hz
DimensionsWxHxD 5-13
x 25
cm(5-5" x 10")
Weight 7 kg
(15.4
lbs)
Subiect to changewithout notice
Sensitivity
switch Input for 150W output Anplifier for
4ohms ou$ut Amplifier for
Sohms ou$ut
MA)L 10v - 25W - tzw
II'ED. 14.1V 25W
- 50W lzw -25W
MIN. 20v 50w
- 100w 25W
- 50W

Bmg&Oufsl
SERVICETIPS
Ledningsmontering
pe
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Wiring of lllains Transformers
TypeLT2L
Typ1722
Type1725
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4-59
ISOIITTIONSTEST b
Ethvert apphratskal isolationstestesefter at det har
varet adskill Testen udfsres nir apparatetigen er
helt samlet og Har til udlevering til kunden.
Isolationstestenudfsres pt fslgendemAde:
'
De to stikben pi netstikket kortsluttes og tilsluttes en
af terminalerne pe isolationstesteren Den anden
terminal fra isolationstesterentilsluttes den sorte
klembosningi AMP LEVEL IMUT.
oBs!
For at undgt beskadigelserpAapparateter det vigfigt,
at beggeteiminaler fra isolationstesterenhgr virkelig
godmekaniskkontakt
.Der drejesnu langsomtmedspendingsreguleringen
pl isolationstesteren
indtil enspending pi 1,5.-2 kV
er opneet Her skal denholdes i 1 sekund derefter
drejesder langsomt ned for spendingen igen.
D€r mA ikke pn noSettidspunkt under testen
forekomme overslag:
BangAOftlhqt
INST]LATION TEST
Earchsetmustbeinsulationtestedafterdismant'
ling.Thetestis to beperformed
when.thesethas
beenreassembledandis readyfor deliveryto the
customer.
Makethe insulationtest asfollows:
Short-circuit the two plug pins of the mains plug and
bonnectoneof the terminals of the insulation tester.
Connectthe other terminal of the insulation tester to
theblackspringloadedcontactmarkedAMP LEVEL
INPUT.
N.B.! I
To avoid ruining the set,it is essentialthat both
insulator test terminals are in really good mechanical
contacl
Now turn slowly the voltage control of the inSulation
tester until a voltageof 1.5- 2 kV is obtained.
Hold it ,
there for 1 second,then turn slowly the voltage down
, again.
A! no point durhg the testing procedure any llasn-
overs;ere permissible
*;lii.fi :
.l