Befaco BF-22 SALLEN KEY FILTER V3.3 User manual
THANKS FOR CHOOSING ONE OF OUR KITS!
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GOOD LUCK!
MAIN PCB 8$""* $9
OPEN MAIN BOARD BAG A
RESISTORS
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= =( &*% 3#"+(3#"+(3&$.3#&*% >3?33@33>333
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1
DIODES
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OPEN MAIN BOARD BAG B
ICs
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CAPACITORS
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2
ELECTROLYTIC CAPACITORS
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TRANSISTORS
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MALE PIN HEADERS
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''1*!&$*".$& )9
POWER CONNECTOR
*".$&'$/*%$&+* $+'*&'I<DJ3$ !& )',+ )*!',&*'$$.)$*,'$
<;$""&&*%* '$+* $+'*&!'#$* '$.$%''$'+(%'$" $
Buen trabajo! Do you t ink a 15 minute break would better prepare
you for t e rest of t e build (t is is a big one!)? T en.. go for it!!
Prove someone wrong in internet (for example)
3
CONTROL PCB
OPEN CONTROL BOARD BAG A
RESISTORS
:'1 "!
$
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DIODES
*".$&'$.*.$observing t eir polarity$#"+(*&%'$" $* '$.*.$8%+
.+'$'$+'*.$'$ $)'2$.$9!''+'$%'$" $* '$.*.$1#*"*
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ICs
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4
CAPACITORS
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TRANSISTORS
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TRIMMERS
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,+ )%1,&*'$$.)$*,'$<;
FEMALE PIN HEADERS
"+$'$,$"$/ $.$&*2$&'$"(+&$$ &( )'/*'* IK;KJ3L
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OPEN CONTROL BOARD BAG B
SPACERS
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#*.1*,'$/+$&* '$+*/* $ '.$3 .'$ !'* '$*//*'$
5
FRONT PANEL COMPONENTS MOUNTING TIPS:
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$#"1;;<"$$'($1*!&'$ .&$.'$,*""*% ) '&!+'* +&$,!""1
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OPEN MINI-JACKS BAG
MINI-JACKS
<"+$""'$ 5+(* '*'$<;$ !& )'$1&$* '$"(+&$$ .$3#!'don't
solder yet
Caution:'$%'+ !' .'$5+( !'"**('$$3#!''$1&$ *'$F!""1N$. .
%"" *'-' $+*'$&4'&$.3*($!&$'*($$/'$$/&'$O
POTENTIOMETER
Now place the potentiometer on the PCB. Do not place them all the way down, leave them loose b t...
don't solder them yet!
:'1 1/$ $* <;
> )"$8/ 9== ;K3;KK3;KK3;K3
KK3KK3KK3KK
TOGGLE SWITCHES
<"+$'$'*))"$%'+$* '*'$<;%$&$'$"(+&$$ .+'$#!'don't solder
t em! '"'$1&$$+!&$.'*'$,&* '/ $"
$*2$#*' !' .'$'##$.%$&$$/'$( !&"$.%$&* '$%'+*!%""
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LEDs
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3
6
FRONT PANEL
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/&*,- $'%$$N$&+ #$$"/,!"
*- 6
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9 Pus buttons.
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+*&&$/* . )/
CALIBRATION
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/*'$ '*$'$&I;KKJ .I;KKJ
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ENJOY YOUR NEW BEFACO MODULE!
7
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