WBS M600 User manual

['Nas]
WARD -BECK S YST E M S LTD .
&4 ' """CIGRI!1!I8 " VI!"'lJI! .~ CNTAI'lQ ""'"'il>< "
TI!i LI! " ~ ' ~ T'EU!.....c:NII! .. ,e J ""3e -~
M600
AUDIO AMPLIFIER
bl A N !! A1 ISSUE.6
Du t mbt r / 7, 1'J87
http://WBSps.ca

W A R D - B E C K S YSTEMS LTD .
TABLE OF CONTENTS
M600 AUD IO At-IPL IF IER
,
a
,
.
,
6
7
a
9
to
"
Wa ....a n t y
TK h n lc a I D" t..
Gene ..er
Cll"Cl.d t D esc .. i p tl o n
In s t
eli llt ion
Ma
lnl en a nc e
DC Vo
llage Ch" ..t
Amp li
fIer Conne<:. tlon s
Ga in vI s
Gain Set Re s I stance
ParI s Li st
P I Connec tor L ayou t
Addendum
M600 Sc::hemati c
M600 Ou
lpu l S trapping Sc::herna t;c
M600 Ty p ic al Sy s tem Wi .. lng Schema tic
101 600 Persp ec tive Layout
SAI22 Sc hema t ic
SAI 22
Compo n ent Layou l
,-,
a-t
,-,
.-,
,-,
6-'
7_'
,-,
9- 1 109 _3
10- 110 1 0- 2
11_1
6600_ 02 -0 10
D 600
-02-0 11
n 600-02-0 12
B
600-04-0 10
B 122
-0 2- 001
B122 _06 _012
http://WBSps.ca

W A R D - B E C K SY S T EMS LTD .
TECHNICAL DATA
"'600 AUDIO AMP LIFIER
Tr a n s d u ce r Gain :
F
re Qu en c y Res p on .... '
EQ uiva len t Inpu t Noi se :
Tota l
Har mon ic
Olll l or ll o n :
So u r ce ' mp e d a n c e:
In
put Imp e d a n c e :
In p ut Le v el :
Loa d Imp ed a nc e :
Ou t p ut Im
pe denc e :
Ou tp
ut Lev e l :
Ph a
s'n g:
Po wer ReQ ul..-n ts :
Amb
ien t Temp e ra tu re:
Wei gh t :
50- 70 d8 ,i/_ 0.5 d8.
i / _ 0 .25 d8 ,....... 20 Hz to 20 kHz .
(g ..... ater than _3 d8 al 25 kl1 z .
_126 dBm (10 Hz 10 1 00 k Hz h an dwld th l
_129 dOm 110 H>: to 20 kHz bandwid th!
Le SS th lln 0.25 '1 froom 30 Hz to 20 k H>:.
Le n t h en
0 .5 ~ from 20 Hz 10 20 k H>:.
!
Mea$ ured lit +30 d 8 m OUlp u l l e ve l ).
150/ 600 ohm s b a l anc ed or unb a llln c ed ,
G
rea ter t h an l OX sour-ce Imp e d a n c e ,
-60 dBm no", ln a l, -2 0 dBm ma l<,
150/ 600 oh ms b a la nc e d or unba la nced .
t.ese th a n 1/ 5 loa d Impedan ce .
+30 dBm ( I w
att l max ,
The lo w t e .....
ina l nu mber of the Inpu t pai r
and the low le nnl n ll l number o f the
ou tpu t p a ir a re in pha se .
49 vo lt ,.
dc, regula t ed from M649 or
eQulval ..., t , 100 rnA a t Iwa ll ou tpu t leve l .
oto 60
deg re es Cehlu $.
1.7" w ide I< 3.4 n high I< 13.7" d eep
In mm I< 83 ...... I< 336 ...... !
3Ib ,.. ( 1,4 kg l ne t.
http://WBSps.ca

~
/<01 600 AUO IO AMPL IF IER
Tne M600 Is a nig l'o performance .udio .mp li fier designed spec lflc.l ,y
for pro fe,.sl one l . ppllca llons In Ine broadc .s ' and sound ~ording
Indus tri e,.. The unl ' exl'olblls exceedi ng ly low InpU I nol,.e (-IZll
dB ... " hi gh ou tp u l c. p. b ll il y ( I Wa ll), uniform fr eq u en c y r e ,.p on s e
end ex ce p li ona lly lo w ' ot a l h.nnonlc di5 10.. li o n.
Accordi ng ly , a n en tl ..e eu ete sys tem may be designed I'l .. ound Ine
"'600 IImp llf i e r-, Th e
use 01 s ubs ldla ..y p l u g ~; n pr ln ' e d clrcul ' ce ..d 10
acc OnVTlOdll ' e " I I IICl iv e c l~ u i , el em en ts aS 5U" e s op t im um fl e " l bll lly
..
nd conv e n ien t u ni l In ' e r chon g e.
I n' e g.... 1 Inp u ' and o u t p u ' ' r o n s l o.. me " s p ..ov i de mu lU _ l rnp e d ll n ce op e ..-
II
tlo n li nd ' ot ll i l y ee te o ce e s y s ' e m p erfo ..m lln ce cll p llb l l i t les . Tne
s pec l. ll y de s i g n e d i np ul I .... n s for tne .. 15 e lec t..os ' a ll c ll ily lin d ",a g ne t-
Ic a l ly s h ie lde d to mln lm l u s
usce p ta b i l i ty to I ndu ce hum a nd lon _
g l, u d l
na l no l sedeg .. ee aue e ,
The to w
imp ed .nc e eee eeo tee " ' In e " mp l ifi e" o u ,pu t t erm ln lli s
pe Nn ia th e use 01 mu l, lp le .. ests tr ve 5p l i ll i n g n e 'w ork s wl, h ma "lm um
Iso l. ,lo n be lween ou , p ut Hnn .
Cond l ,lonll l s t r a p pi ng Is accomp lished on ,he frame - ec eo re c te , Thus ,
"'6 00 . mp llfler s m. ybe ..e a d ll y in'erchan ged .. lI hl n • sys tem wi thou t
r e g a r d 10 f u
ncl io n .
The modes l si ze o f 1 . 7 " J •• x 13. 7 inches a l lows len '4600
.mp llf i ers 10 be accommoda ted In one o f I n e s '"nda rd r.cl( IJlOUn ,ing
( 19 " 3. S ) MF6 eQu lp me n l frames. Per fora 'ions In ,he moun,lng fr a me
.nd mod u le a s sure a deq u a' e verllca l ven 'l 'e ,lon by rn<lu ral CllOy.., cl -
,~ .
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WA R D - BE CK SY STEM S LT D .
C IRCU I T OESCR I PTlOII
1>16 00 AUDIO AMP LIF IER
Ref
er 10 ac hema tlc dlag r."n 6 600 _0 2_0 10 a n d 0 122- 02- 00 1. 0 1 Ih rou g h
OJ
comp rise a lo w noIse, wide dy nan, 1c r a n g e , p .-e a' nQ IH le r . T he
NPN, PNP
con flg u r a l lo n ass u.-es e >< l reme ly low dls tor l ion and s tab le
te mp
er a t ....re ch a rac t er lS l lcs .
The
Inp u 1 sl gn .. 1 15 .. ppll ed to Tl p rima ry whi ch may be Sl rapped to
ape ra te f rom 150 or 600 ohms sou n::e i mped a nc e s . The amplifle ..
.-e
flec ls a hi gh Impedance to Tl s econdary , causing t he anJP lIfle ..
In p ....1 te rm in al s t o o ff e r a n
unl oa de d in PUI to the source .
C5 a
nd C6 coup le t he p reamp lifl .. r o ....t p u t t o l he in t .. r sl a g e comp -
onen ts o f 0 .... F ET 0'" an d tr a n s ls lo r 05 p ro d ....ce a n ac tive 12
dB/ OC:I!l ve lo w pass fl lIe .. , .. ff pc!i v e b ey on d th e "' .... dio SPPC lrurn.
0... o ffe rs an e" l reme ly high ;'.. pedllnce to th .. aS5OC'a ted gl ue
compon en ts whi ch f or m Ihe I ~ u e n c y r e s pon se sha ping ne twork . CIO
cou p les th e ou tp ....1 f rom 05 ca l lec lo" to Ih e d r iv .... a nd OU lpu t sec tion
com p .. ls lng 06 Ih rou g h 0 12.
R22, R2J
an d R2'" de lermlne t he bias vo l tage to 06 b ase . The en ll ..e
d..
lve .. a n d OUlp u t sec l lon 15 direc l COUp led . R25 . R26 e nd R27
mal n le ln th e OP tlmu m bl e s vo l te ge ' or Ihe OU lpu t c ircu i l when Ihe
e" le ..
na l g a i n s t .... p p i ng r e si s tor is c onn ect ..d .
A 20 d B g e ln e d J....s
tn"' n l m.IIy be .. cc omp lish ed by con nec t ing Ihe
a
pproprl a le r e s lS lO" be t .. een le rm i n a l \ 0 a n d I'" on Ihe ' .... me .. ecep-,
t.. cI e . A s l'>or t produ ce s 7 0 d B g e in, .. h i le 4 . 71< ohm or th e omiss ion
o f e s h ....n t r e sl S lO" .... d uces Ihe g<li n 10 50 dB; ' n l e .-me d l ll ie " e si SI O"
v" lue s m "y be con nec led t o " Ch iev e o t her g a in fi g ....re s b e l .. ee n 50
..
nd 70 dB.
07 15 a c:u r re n l sou rce to p .... ven l a d v e rs .. si gn a ls o f .. Ipp le preS,," 1
on lhe s u p p l y vo
lu. g e f rom b .. l n g pJ'DCe ss ed th rou g h th e anop l Hle ..
D\llp ....t
sec ti on ll nd e l l ml na les th e s y Sl em d eg radation c: "u s ed by sU<:h
In le
rf e ..e n c:e .
e n l
and 113 5 d e l erm ln e t h e q ....ies ce n t b ia s l or Ihe cl a s s 0 po wer
de v ic e s . RJO In l rodu ce s s u bs la n ll a l o v er a ll n.. ga tiv .. f eed b a ck 10
r ed u ee dl s
tor llo" to a n e gl I g ib l e d e gr e e r e g llrt ll e s s o f OUIPU I l eV'l l ;
In
add i t io n , nJ O pr"Dv lde s glli n lin d de s lab ili l y .
0 9 I h r o u g h 0 12 e r e P;t r ll l l ,,1 ceooec ree c
omp lime nt a r y ou tpu l d "v lc e s
" " h lb l t l n g II ve ry 10.. o u l p u , Imp e
dan ce 10 t h e p ri m ar y o f T2 v i;t C17 .
http://WBSps.ca

W A ~ O · B ECK S Y S T E M S LTC .
C IRCU I T DESCR IP TION
M600 AUD IO AMPLI F IER
The "1600 OUtp u t
Impe'dance is prima .. il y t h a i o f t he de. .... indlng
~sls l .. nce of ou t p Ul 1.... ns 'on'>er 72.
T 2 p ri "",r y o ff" r s op timum ma 1chlng of th e loa d 10 t h" \/o l tage
de ll\/e r" d from th e eml ter . o f t h e ou ~p u t circu it . Cl7 coup ' '''' th e
au dio sig na ' 10 7 2 a n d p r ev ent s a ny d irec l curren t ' !"Om f lo ....in g i n
7 2
pri m ar y .
http://WBSps.ca

1-
Itl STALLA TI Ofj
1.1600 AUO IO AMPLI F IE R
The M600 plu gs d ir «: lf y In lO I h ~ MF 6 m,,\, mt!n9 frllR>e wh i ch ""'I' b"
i n Sl a l le d I n " " la " da ..d ' 9 Inch equlp~n l .... c k wl lh Ih., hllrdw,,~
supp li ed with t he r a c k. Th e MF6 is furni s h e d w i lh .. l ull gu id"
c:omp tlrne " . In ord er 10 accep t 1I ma xi mum of l eo ,,\600 amp li 'i ...." or
any comb in a t ion o f "i ng 'e or mu l tip le wid t h modu les nOI exceedi ng 10
si n g le wid th
modu le s. II lhe mO"''' ling 'ra rne h a s been procured wilh
le s s r
ecep ta cl es , t he s e mus l be ins ta ll ed in Ihe lIPPl"'OPrl" u: mod u '"
p o "l l ion s .
Wh er e yer tlc a l r ack s pliCe p e,., ,,il s a n d Ih .. u lli mlll e In noise li nd
cro s st a lk IS dema nd e d , I I Is ,-"(.o" "" " .. d,, d 10 " I loca '" on ly noodu 'e! o f
I he " .. me t yp e 10 e llc h l
ndl \l l duo l MF6 r a c k I r a "' .. . Alt er n a t el y If 1I
p ow er- s u p p l y Is .... q u l .... d to po we r t wo s i n g le hlod u l .. M600 ll
"'p lH ie rs ,
t h e po we r s u p p l y
sho u l d b e ' n S ln l l ed t o t h e r ' g hl o f Ih e fr a n'e
(n
orm ", I p r a c t i ce v ie ....ed f r o m r " e l< fr on t) a n d me /!I",p l lf ier s In s t8 11"d
to I he e " t
re me l eft. Whe n ",1 "l n9 an ,pl ifer t y p es In one fr llm e,
e x er-ct s e e ><l r e," e C ar e 10 se per o t e cab les o nd a d l'e re 10 p r o p er
g ro u n d i
ng conven llon s .
F or op ti mu m
re su ll S, u s e In tiul /!lte d , s h Iel d e d I w ist e d pai rs for b o th
' n p ut a n d ou tp u l w iri n g . Ca b
les op e ra tin g w ith le v e l d if fere nces
e><ceedl ng 2S de s hou ld b e I" ee d s ep" ra le l y a n d d ressed IIpllr l fro<n
ea ch o lher a nd from pow er wi ring .
Ju
mper te r m in ,,1 9 (ch ",s l ls grou nd I o f li l t "mp ll fle r s orl II Co<•• "on
f.. ame tog e t he r and eco oec t n ' 18 A\'IG wire fro m each fr e me o f
" mp
llfl er s 10 the sys tetn ground bus . Hal<e a ...epa ..e te connec tion
f rom te rm in al 10 (c oorrnon l of each amp l ifie r 10 Ih e Iy s tetn grou nd
b us . Th i $ will p re v en t cur .. ""t coup li ng , noise a nd cr-ossreue .
Ju mp e .. l
ermi na l 2 ( -tvl o f " II ",,,,p lllie ..s on e CO<'nl'-' f""me to g et he r
..
nd connec t" ' 18 AWG wire lro<n e"ch Ir " me of .. mp lllier" to t he -t48
vo t t de p ow
er s up p ly t erm ln.. l .
I nd l v i d u ,, 1
sys lems require ground t ec h n i q u e s pecu lia" to each sys lem .
P
ref " r " bl y t he "on e p o i nt " ground sy s tem "hou ld be cmn toyed 10
eli ",ln al e ground l oop s . All Inp u t s hi e lding shou ld he Corl nce ted
I ndivi d ua ll y to t er min" l 6 (Inpu t grou nd ) on ly; the Inpu t $hie ld
gro u n d i s int e r n a lly c onnec led to t he po in t of lowe l t pO len tla t and
ca rrie d th rou gh v i a l" r min .. 1 10 to t he sys letn ground .
http://WBSps.ca

~~
~~
The 1>16 00 15 de si gn e d fo .. d e p e n d " b l e, l ro u bl e - I ..ee se ..v 1ce; how ev e ..,
as w!lh n il high Q u" ll l y e lec t..on lc e q u l p ", ,,n t , 0 ""gu l;:... s che du le o f
In s pe<:l lon s ho u ld b e eS I" b li s he d . Any
IIcculll u l " tl on o f d us l s hou ld be
pe .. iodica lly .. ~ov " d .....llh a sof l b"u s h li n d a v a CUUln h o s" .
T
he ee uve cin:u ll" y may b" .. "",oved fo.. Inspec llon by u n pl u g g in g
the SA 122
cin:uH bo a .. d . Do n ot Inse .. t 0.- r-emove the companen l boa ..d
.....l lh t he u n il " n
...-gl zed . ~f aull Is sus pe<:led, measu .. l ng the de:
vo ltage p .. "sen l a l lhe t.. ansi s tor e tee r-eee e may a'nl5 t 10 d"I" ..... lne
lhe
cause . When compad ng th e I1'I easu ..e""e nI5 li s ted I,.. Ihe vo l lage
c b e .. t cOl'lside ..a lion shou ld be gi"ero 10 I he ' a ct t h" l , f or dl.-e<: 1
coupl ed sec llons , a ra u ll In one cln;u ll rna ... Cau se ab normlll i condi-
l ion s in e u-e .. cin:ul l ,, "ells ..... ilh in I h" s.allle sec l lon .
If 11 Is n ec es s a .. ... 10 ln te ..c h ange 1I comp o ne n l 10 d e le ..,n in e I he ca use
o f a I IlUl t , fi ..s l .. "move Ihe so lde .. f"olll Ih e p dn le d c r..c u l t l oi l
fill e ts e e sec t etee with Ih " s us pec ted de l r.c l ; v" compone n t . To cia Ihl s,
u se " 11
ghl s o l d" .. l n g Iron (2 5 wo ll S) i n co ", o , n o l lo n w i th on
in e><p ..,n $ lv " va c uum ac lion t yp e h " n d d"so lde r in g 100 1.
P l
ace Ih e s o l de .. lng iro n and Ihe deso l de rl ng 1001 on th e so lde r
conn ec lion 10 b e eeec tee -e e , Whe n Ih e so lde r me l ls t horo u g h l y , p ress
I he p l unger r el e a s e Ir l g g ...-. App ly Ih e so lde r i ng Iro n on l he connec l ~
ion u n lit Ihe "a cuum s l..o ke has been comple led . If N1Y of Ihe lead
con n ec l lon s Sli ck 10 lhe p rl n le d etee cn boe rd , fr ~ It.c.m ..... ilh a
sc
ribe or a s imi la r s ha rp l... poin led inS lrumen l . Ca re fu l I... r emo v e I he
C
O""ponen l w hich , jf proV M 10 be sa l is fac lo....., rna ... be used again
fo.- o l her ap p l ic a l l ons .
To t o e
ren t t-e n e w c ompo ne n t , Shape Ih e le a d s 10 Ihe co r ..eCI
s
pa cing . I n se " l Ii'll! p a rI an d fo l d t h e l e a d s u nder Ihe pr ln led
circu it boa r d to fir", l... ho ld lI' e co ",pon en l. Cl ip o ff th" c >lce ss wire
I" " v ln g o bo ,, ! 1/ 6 In ch. So l d"r tne ne w lea d s , u s ing r ~ s l n co r e
so
lde r a n d cl ea n 11'1" boa r d .....Ith a in ert f l u id s uch a s pe rc h-
l ort! l he ' ...n" .
T h e loc " lI on o f C<><noonerots 15
sho .....n In dra ..... ing 0 122 _06_00 1.
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W A R e- B E CK SYSTE MS LT O .
M600 A UD IO AMP LIF IE R
DC VOLT AGE CHART M I 22
25 25.5
Ampllffer .... tlo r 50 dB g a i n .
http://WBSps.ca

WARO ~ BEC K SYS TEMS LTD .
"1600 AUDIO AMPLIFIER
P I AMPL I F I ER RECEPTA CLE CONNEC T IONS
SOURCE
IM"' '''-'' O .''''''' CE'-'' --''''''''" '--- -'''''''' ''''-'
ISO oh ms
600 ohms
Inp UI Shie ld Gnd .
LOA O IMP EOANCE :
ISO ohms
600 ,>0.,,,
Gain St rap
+48\,1 DC
0' 0
1 108, I Sl a 16
) 10 4, 11 to 12
8 and 16
e
and 16
z
to
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WA R D - B ECK SYS TEMS LT D .
104 600 AUDIO A MPLIFIER
GA I N \I/s GAI N SE T RES IS TANCE
~ I ~
-------
,
J
E 'A RES IS TANCE VA LUES FOR SPECIFIC GAI N
GAI N
SO
~2 10K
~4 3 .9 K
S6 2 .2K
58
I. ~ K
60 910
62 S60
64 360
66 200
68 100
70 0
http://WBSps.ca

W A R D - B E CK SYST EMS LTD .
~
M 600 AUOIO AMPLI F IER
,-,
http://WBSps.ca

WA RD- SECt< B Y 8 , "E MS LT D . -
~
1016 00 AUD I O AMPL I F I ER
0' Tr a n sist or
OW
on
0"
A'
Re~lslor I floW 5S 'OOK
A' 120K
AJ
"J
A' ""
AS 62
",
SO<
"tsc
""
R9
.,,,
AW
W"
An
.. 7
A"
'"
AU
W"
A" ' OK
AOS '"
A"
SO,
A07 ""
Aoe J"
A"
'"
A2Q ,
<7
A"
220
."
" OK
A2J ' OOK
AJ< '
00"
A2S ",
A26 SO,
A27 ecz
A2Q 270
A29 sse
AJO
.. ,
MFG PAR T NUMBER
MMJOO7
MMS007
101 101 3007
MMS007
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WA Fl O · S E C K SYS TE MS L TD .
~RT S LIS!.
~}~~~
MFG P ART NUMBER
RJO Re si s ior
1/4W 5S "P h :,l l p s
Rn
'00
R3J '"
R,.
'00
RJS "
R ,.
'<J
RJ7 1/ 2W 5S "
RJO "
RJ9 "
R'"
"
R IOI)
PO len llome ler
AlB
r r Tr a n s f
or me r E. C . WBS 60 _4
ra HlI.n......, nd Yr"BS 7 0- 3
MiSCELLA NEOUS COMPONE NTS
MFG PART NUMBER
09, 0 10,
01 1
,0 12 Hea l SInk
Trlln 515 10r Moun ting P ad
In s u l a t i n g Strip
S tand Off
Bi r
tch er
The nnoll ll.Y
WB'
Sn,y lh
JAL68 0- 2R
11 17
600-007
5T 7,,31440
WBS r ecomm end s th e u s e o f r eplac em en t p ar is mlld e b y th e s pec if ie d
m llnuf llc ture r s f or co n t i n ue d o p t i mu m equipmen t p er formanc e .
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WARD-BECK SYSTEMS LTD .
M600 AUDIO AMPL IF IER
Pl
CONNECTOR LAYOUT
600
OHM STRAPPING
COM --,-----=-....:.....:'-,-- ---;- --1
600 OHM
OUTPUT
10
II
I
I
I
I
-.J
+48V
GAIN SET
(SEE NOTE 1)
600
OHM INPUT
NOTE:
VARYI
NG GAIN SET RESISTOR FROM
4K7 TO 0 OH
MS CHA NG ES GAIN FR OM
50 TO 70 dB .
10-1
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WARD - BE CK SY STE MS LT b .
M600 AUD IO AMPL IF IER
PI CONNECTOR LAYOUT
150 OHM
STRA PP ING
GAIN SET
(SEE NOTE 1)
+48V
150 OHM
OUTPUT
I
I
I
~
8
I
I
I16
I
L
' --I
II
,-- - - +- -,
I
I
I
COM --r---r - -j f-,
150 OHM INPUT
NOTE :
VAR
YIN G GA IN SET RES ISTOR FROM
4K7 TO 0 OHMS CHANGES GA IN FROM
50 TO 70
dB .
10- 2
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WARD-BECK SYS TEMS LTD .
M600 AUDIO AMP LIF IER
ADDENDUM
P ur pose of Addendum
To describe
in div idua l ly
A mpl lf l er ,
Me thod
necessary wirrn q and moun ting
isolated +B dBm 600 ohm output
requ i red for up
split s from one
to B
M600
1) S
trap the o utput of the M600 Amp li fie r
fo r 1SO ohms strap 11 to 12
3to 4
Co nnect output to 3&11
2)
Usi ng the M1S7 PC Board as Temp late, dril l 2 #43 (440 tap
size) ho les in the rear con nec tor p la te of th e MF6 F rame or
the Cable Pan adjacent to t he M600 Amp l i fier .
3 ) Tap these ho les o r, if ta p no t avai lab le, dr il l clearance
ho les for 4/40 screws (#33).
4) T
he M1S7 Bo ar d provides a 4-way sp li t. If an B -way split
is de sir ed th en moun t 2 M1S7 boa rds i n pa ra l le l . Use (4)
1/4" s ta nd o fts to separate the boards from each other and
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