Mackie SWA1801 Schematic
SWA1801 REPAIR MANUAL
A C T I V E
1
The se instruc tio ns a re inte nd e d to he lp re sto re a ny a iling SWA1801 Ac tive
Sub wo o fe r b a c k to fa c to ry w o rking c o nd itio ns. The y sho w ho w to re m o ve a nd
re pla c e the wo o fe r a nd a m p a sse m b ly.
Ple a se c o nta c t Ma c kie Te c h Sup p o rt (1-800-898-3211) to re c e ive a Se rvic e
Re q ue st Num b e r a nd O rd e r Numb e r fo r p a rts ne e d e d fo r this re sto ra tio n. The y will
a lso he lp yo u d e te rmine the na ture o f the p ro ble m a nd wha t pa rts will re pa ir the unit.
To o ls ne e de d :
***NOTE: no t a ll to o ls liste d b e lo w will b e ne e d e d fo r yo ur re p a ir***
• Phillip s he a d sc re wd rive r.
• 5m m a lle n w re nc h.
• So lid wo rkb e nc h.
2
• No n-c a rp e te d wo rk a re a d ue to static e le c tric ity. If a va ila b le , a n ESD ma t
(Ele c tro -sta tic d isc ha rg e ) is o p tima l.
Pa rts ne e de d :
***NOTE: no t a ll p a rts liste d b e lo w w ill b e ne e d e d fo r yo ur re p a ir***
• Le d PCB Asse m b ly Pa rt # 0007334 p a g e s 3-4
• 18” Wo o fe r Pa rt # 0012184 p a g e s 5-6
• Am p lifi e r Asse m b ly Part # 0005687 p a g e s 7-8
Sa fe ty Wa rning s:
• Ma ke sure tha t yo u turn o ff the unit a nd d isc o nne c t the p o we r c o rd (a nd a ll
o the r c o rd s) b e fo re yo u b e gin the se p ro c e d ure s.
• Alwa ys use sa fe ty g la sse s!
• Ple a se try NOT to to uc h a ny o f the p c b c irc uitry, c a p a c ito rs, re sisto rs, e tc .
• Ta ke c a re to re a d a nd fo llo w the se instruc tio ns. It ma y he lp to re a d the
instruc tio ns p rio r to the re p a ir to g e t a n id e a o f wha t it e nta ils.
• Be fo re b e g inning the re p a ir, to uc h me ta l to d isc ha rg e a ny ling e ring inte rna l
sta tic e le c tric ity.
20
3
Le d PCB re pla c e m e nt:
12 34
5
19
18
17
16
15
Twe nty sc re ws ne e d to b e re mo ve d fro m
1
6
7
8
9
10
11121314
the fro nt p a ne l using the p hillip s he ad
sc re wd rive r.
Ca re fully b e g in to re m o ve the fro nt
3
p a ne l. The wa ve g uide s a re a g re at
p lac e to grip fo r sta b ility a nd sup p o rt. Do
no t fully re mo ve fro nt pa ne l a s the c ab le
is still a tta c he d to the le d PCB a sse m b ly.
Ke ep the 20 sc re ws a nd w a she rs in a
2
safe p la c e.
4
C a re fully re m o ve the c ab le a tta c he d to
the le d PC B asse mb ly.
Le d PCB re pla c e me nt c ontinue d:
Use phillips he a d sc re w d rive r to re mo ve
5
o ne sc re w fro m c e nte r o f le d PC B
a sse m b ly.
The ha rd p a rt is d o ne , the re st is e a sy!
7
4
Pla c e ne w le d PCB a sse m b ly (p a rt
# 0007334) w he re the o ld o ne w a s. Fo llo w
the sa me ste ps a s a b o ve , b ut b a c kwa rd s
6 to 1. Po we r up the SWA1801 a nd le d
sho uld lig ht up . C o ng ra tulatio ns, yo u just
re p la c e d a n le d PCB a sse m b ly...no w g o
p lay so m e sho w s!
Ca re fully re mo ve le d PC B a ssemb ly fro m
6
b a c k sid e o f fro nt pa ne l. A fl a the a d
sc re wd rive r ma y a id in re mo va l o f le d
PCB a sse m b ly if it is stic king .
Wo o fe r re pla c e m e nt:
Fo llo w ste p s 1-4 o f le d PC B re pla c e me nt,
1
a s the fro nt pa ne l will ne e d to b e
re m o ve d in o rd er to a c c e ss the wo o fe r.
5
Eig ht sc re ws ne e d to b e re mo ve d fro m
2
1
8
7
the wo o fe r using 5mm a lle n wre nc h.
2
3
4
56
Ca re fully b e g in to re m o ve the w o o fe r.
4
*
C a utio n: w o o fe r is a pp ro xima tely 27
p o und s with w e ig ht une ve nly d istrib ute d .
Ke ep the e ig ht sc re ws in a sa fe p la c e .
3
5
*
*
+
Po sitive (so lid ye llo w) a nd ne g a tive
(ye llo w a nd b la c k) c ab le s a re still
a tta c he d to wo o fe r te rm ina ls.
The se two pic ture s we re take n during a n SWA1501 wo o fer re pa ir.
Sam e princ iple a p p lie s to the SWA1801.
-
Wo o fe r re pla c e me nt c ontinue d:
Push
in
Re m o ve c ab le s fro m te rm ina ls sim p ly b y
6
p ushing d own o n te rmina l a nd pulling
o ut c ab le .
6
This is w ha t it lo o ks like with the fro nt
7
p a ne l and wo o fe r b o th re m o ve d . Plac e
ne w w o o fe r (p a rt # 0012184) whe re the
o ld o ne w a s. Fo llo w the same ste ps a s
a b o ve , b ut b a c kwa rd s 6 to 1, m a king
sure to ke e p the le d PCB a sse mb ly c a b le
in front o f wo o fe r. Po we r up the SWA1801
a nd the ne w w o o fe r sho uld no w b e
p um p ing o ut g lo rio us lo w s. Aw e so me ,
yo u just re p la c ed a n 18” wo o fe r!
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