Viking MCX-106 - Manual (Page 7)

Effects Return Jack (EFT/RET)
The EFF/RET j a c k is provided t o
connect
an e x t e r n a l e f f e c t s
device t o t h e MCX-106. When a
plug is i n s e r t e d t h e i n t e r n a l
r e v e r b e r a t i o n u n i t is a u t o m a t i -
cally s w i t c h e d o u t of t h e MCX-
106 c i r c u i t r y , being replaced by
the e x t e r n a l u n i t . This j a c k
s h o u l d be c o n n e c t e d t o t h e o u t -
p u t of the e x t e r n a l e f f e c t s u n i t .
N o m i n a l i n p u t level is —20dB
w i t h an i m p e d a n c e of 50k ohms.
Effects Output Jack (EFF)
The EFF Out j a c k used in con-
j u n c t i o n w i t h t h e EFF/RET Jack
allows use of an e x t e r n a l e f f e c t s
device in place of t h e i n t e r n a l
r e v e r b e r a t i o n u n i t . The e f f e c t s
o u t j a c k should be c o n n e c t e d t o
t h e i n p u t of t h e e x t e r n a l e f f e c t
u n i t . Nominal o u t p u t level is
— l 0 d B w i t h an impedance of 600
ohms.
Program Output Jack -
(PGM)
The PGM Out j a c k is provided
for c o n n e c t i o n t o e x t e r n a l e q u a l -
izers a n d / o r power amps, d e r i v -
ing i t s signal prior to t h e i n t e r n a l
GEQ and power amp. N o m i n a l
o u t p u t level is +4dB w i t h an
i m p e d a n c e of 600 ohms.
Graphic Equalizer Input Jack
(GEQ)
The GEQ i n p u t j a c k a l l o w s t h e
g r a p h i c e q u a l i z e r t o be used in-
d e p e n d e n t l y of t h e MCX-106
w i t h o t h e r e x t e r n a l e q u i p m e n t ,
or t h e i n t e r n a l power a m p l i f i e r
and t h e g r a p h i c e q u a l i z e r w i t h
e x t e r n a l e q u i p m e n t . When a
p l u g is i n s e r t e d , t h e m a i n m i x
from t h e program buss is discon-
nected from t h e g r a p h i c e q u a l -
izer and t h e power a m p l i f i e r .
The n o m i n a l i n p u t level is —4dB
w i t h an i n p u t i m p e d a n c e of 50k
ohms.
Power Amplifier Input Jack
(PWR)
The PWR Amp i n p u t j a c k a l l o w s
t h e i n t e r n a l power a m p l i f i e r t o
be used w i t h e x t e r n a l e q u i p -
m e n t . When a p l u g is i n s e r t e d ,
t h e power a m p is a u t o m a t i c a l l y
d i s c o n n e c t e d f r o m t h e MCX-106
m i x e r s e c t i o n . The n o m i n a l i n -
p u t l e v e l is +4dB w i t h an i n p u t
i m p e d a n c e of 10k ohms.
Program Buss Link Jack
Fold Back Buss Link (FB)
Reverb/Effects Buss Link Jack
Buss Link Jacks
The buss l i n k provides direct
access t o t h e PGM, FB, and ef-
f e c t s m i x i n g busses, and is pro-
vided for easy i n p u t expansion
w i t h a d d i t i o n a l MCX-106 u n i t s
or o t h e r a u x i l i a r y e q u i p m e n t .
All j a c k s have an i n p u t level of
+4dB w i t h an impedance of 22k
ohms.
- Foldback Output Jack (FB)
This j a c k is f o r c o n n e c t i o n t o
e x t e r n a l power a m p l i f i e r s a n d /
or e q u a l i z e r s for t h e o n - s t a g e
m o n i t o r i n g
system. N o m i n a l
o u t p u t level is +4dB w i t h an
i m p e d a n c e of 600 ohms. I f t h e
i n t e r n a l power amp and e q u a l -
izer are t o be used for t h e on-
stage m o n i t o r s y s t e m , t h e FB
o u t p u t s h o u l d be c o n n e c t e d t o
the GEQ i n p u t j a c k .
- Graphic Equalizer Output Jack
(GEQ)
This j a c k allows t h e MCX-106
and t h e i n t e r n a l g r a p h i c e q u a l -
izer t o be used w i t h an e x t e r n a l
power a m p l i f i e r , or in c o n j u n c -
t i o n w i t h t h e GEQ in j a c k , t o be
used i n d e p e n d e n t l y of all o t h e r
MCX-106 c i r c u i t r y . N o m i n a l
o u t p u t level is +4dB w i t h an
i m p e d a n c e of 600 ohms
Power Switch (POWER) -
The power s w i t c h is a t h r e e -
p o s i t i o n t y p e w i t h t h e m i d d l e
position being t h e "off" position.
The MCX-106 s h o u l d be o p e r a t -
ed in t h e s w i t c h p o s i t i o n w h i c h
produces t h e lowest a m o u n t of
system h u m .
Speaker Jacks (SPEAKERS) -
The speaker o u t p u t s are s t a n d -
ard 1/4" phone j a c k s wired in
p a r a l l e l . Speaker cables (recom-
mend at least #18 gauge w i r e )
should be c o n n e c t e d b e t w e e n
t h e MCX-106 and t h e s p e a k e r
s y s t e m s p r i o r t o a p p l y i n g p o w e r
t o t h e u n i t .
Caution - The MCX-106 s h o u l d
never be o p e r a t e d i n t o less t h a n
a 2 ohm s p e a k e r load.
AC Power Cord
The power cord is t h e t h r e e - w i r e
t y p e w i t h proper g r o u n d i n g f a c i -
l i t i e s .
Caution - The g r o u n d p i n s h o u l d
n o t be removed u n d e r a n y c i r -
c u m s t a n c e s . I f t h e MCX-106
m u s t be used w i t h o u t proper
g r o u n d i n g f a c i l i t i e s , a s u i t a b l e
g r o u n d i n g a d a p t e r s h o u l d be
u t i l i z e d . O p e r a t i o n of t h e MCX-
106 w i t h proper g r o u n d i n g
t e c h n i q u e s w i l l r e s u l t in less
s y s t e m noise and g r e a t l y r e d u c -
ed shock h a z a r d .
Warning - To a v o i d p o s s i b l e
e q u i p m e n t damage and or per-
s o n n e l i n j u r y , t h e f u s e s h o u l d
a l w a y s b e r e p l a c e d w i t h s a m e
t y p e a n d r a t i n g . U s i n g i m p r o p e r t y . The M C X - 1 0 6 s h o u l d a l w a y s
be d i s c o n n e c t e d f r o m AC o u t l e t
p r i o r t o c h a n g i n g fuses. If f u s e
r e p e a t e d l y f a i l s , t h e u n i t s h o u l d
be r e f e r r e d t o q u a l i f i e d service
p e r s o n n e l l o r r e p a i r .
Earth Terminal (GND)
AC Fuse
Cord Wrap
The cord wrap is provided for
c o n v e n i e n t storage of t h e power
cord when t h e MCX-106 is not in
use.
Caution - The power cord should
a l w a y s be c o m p l e t e l y removed
f r o m t h e cord wrap prior to
o p e r a t i o n of t h e u n i t . This w i l l
i n s u r e m a x i m u m cooling of t h e
MCX-106. For t h e same reason,
a d e q u a t e clearance should be
m a i n t a i n e d b e t w e e n t h e rear
panel and a n y o t h e r s u r f a c e (4-6
i n c h e s s h o u l d d o ) . The v e n t s on
t h e b o t t o m and top of t h e MCX-
106 are also provided for convec-
t i o n c o o l i n g . These v e n t s should
be k e p t clear and open. F a i l u r e t o
do so may cause t h e r m a l s h u t -
down of t h e u n i t .
— 6 —
Front Panel, Patch Bay & Buss Link
(+4dB 22k )
(PGM) (+4dB )
(EFF) (+4dB 22k )
22k
Rear Panel
fuses will also void the warran-