8
8..0
0
O
OP
PT
TIIO
ON
NA
AL
L S
SM
MA
AR
RT
TL
LO
OC
CK
K
Beginning with Revision T of the SG-230 product, an additional control line,
Red with White trace, was added. This wire normally floats - in other words, it
is not connected to anything. When this wire is connected to a ground
momentarily, the coupler is caused to reset and go through its tuning
sequence again. When this wire is connected to + 12 VDC, the coupler is locked,
preventing operation with any other tuning solution until the +12 VDC is
removed from this wire.
S
S m
m a
a r
r tt L
L o
o c
c k
k -- S
S G
G -- 2
2 3
3 0
0 S
S m
m a
a r
r tt u
u n
n e
e r
r c
c o
o n
n n
n e
e c
c tt ii o
o n
n s
s ::
R
R e
e d
d --
R
R e
e d
d w
w ii r
r e
e (( +
+ 1
1 2
2 V
V D
D C
C ))
G
G r
r e
e e
e n
n
-- B
B ll a
a c
c k
k /
/ W
W h
h ii tt e
e w
w ii r
r e
e
R
R e
e m
m o
o tt e
e tt u
u n
n e
e d
d ii n
n d
d ii c
c a
a tt o
o r
r ll ii n
n e
e
W
W h
h ii tt e
e
-- R
R e
e d
d /
/ W
W h
h ii tt e
e w
w ii r
r e
e
T
T u
u n
n e
e r
r ll o
o c
c k
k /
/ r
r e
e s
s e
e tt ll ii n
n e
e
B
B ll a
a c
c k
k --
B
B ll a
a c
c k
k (( G
G r
r o
o u
u n
n d
d ))
O
OP
PT
TIIO
ON
NA
AL
L S
SM
MA
AR
RT
TL
LO
OC
CK
K S
SC
CH
HE
EM
MA
AT
TIIC
C D
DIIA
AG
GR
RA
AM
M
55
© 1998 SGC Inc
SG-230 Manual
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA 98005 USA
P.O. Box 3526, 98009 Fax: 425-746-6384 Tel: 425- 746-6310 or 1-800-259 7331
E-mail: [email protected] Web site: http://www.sgcworld.com
SW2
PUSH Button
DS2
Red LED
R2
330
+13.6VSW
DS1
Gr een LED
R1
150
SW1
DPDT
CA1
C1
0.1µF
C2
0.1µF
R3
330
D1
1N757
C3
0.1µF
Q1
2N2222
3
4
5
2
6
1
TUNED FROM COUPLER
NORMAL
RESET
GROUND
+13.6 VSW
Red
Gr een
Black
White
RED
GREEN
WHITE
BLACK
NO TUNE /
RESET FROM COUPLER