Chamberlain RESIDENTIAL GATE OPERATOR GA420D - Manual (Page 21)

21 Installation
The control box MUST be mounted within 5' of the gate
operator. Mount the control box as high as possible for
best radio reception.
Mount the Control Box
Open the Control Box
Remove screws and open the control box.
RESET
Remove the Control Board
Disconnect reset button, alarm and coaxial
connector. Loosen screws and remove control
board and mounting bracket. Remove batteries and
set aside.
Knock Outs
Knock Outs
Knock Outs
Knock Outs
Knock Outs
18 18
L1 L1
K2K2
Z22Z22
F2F2
MO V1 MO V1 D1D1
OPEN
SINGLE BUTTON
RESET
STOP
CHGR CHGR
OVLD OVLD
COM
COM
D129 D129
Z4 Z4
D2 D2
C11C11
C13 C13 D16D16
F9F9
K1K1
F3 F3
K3K3
K4K4
F1 F1
Z12 Z12
GATE 2 GATE 2
GATE 1
GR GR
WH WH
YL YL
BL BL
RD RD
BR BR
GR GR
WH WH
YL YL
BL BL
RD RD
BR BR
F7 F7
24V 24V
CTRL CTRL
OVLD OVLD TIMER TIMER RUNNING RUNNING GATE 2 GATE 2
SET SET OPEN OPEN
LIMIT LIMIT
SET SET CLOSE CLOSE LIMIT LIMIT
LEARN LEARN
LIMITS LIMITS
GATE 1 GATE 1
LEARN LEARN XMITTER XMITTER LOCK / LOCK /
ON ON OFF OFF
C69C69
PWR PWR
AC PWR AC PWR
/SOLAR /SOLAR
R329R32 9 R27R27
MO V2 MO V2 R4R4
C2C2
BIPART DELAY BIPART DELAY
LOCK
Q9Q 9
R9 R9Ø
F8 F8
C73 C73 C72 C72 C71 C71 C7 C7Ø
R42 R42Ø
R423 R423 J24 J23 3J24
J23
3 Ø A 32VA
32V
3 3 Ø A 32VA 32V
J21J21
3030 3030 C64C64
R22 R22 U2 U2
K6 K6
JU1JU1
JU1JU1
JU2 JU2 DB1 DB1
R184 R184
ALARM
18 18
K2K2
Z22Z 22
F2F 2 MO V1 M O V1 D1D1
D129 D129
Z4 Z4
D2 D2
C11C 11
C13 C13 D16D 16
F9F9
K1K 1
F3 F3
K3K 3
K4K 4
F1 F1
Z12 Z12
GATE 2 GATE 2
GR GR
WH WH
YL YL
BL BL
RD RD
BR BR
F7 F7
24V 24V
GATE 2 GATE 2
SET SET OPEN OPEN
LIMIT LIMIT
SET SET CLOSE CLOSE LIMIT LIMIT
LEARN LEARN
LIMITS LIMITS
GATE 1 GATE 1
C69C69
R329R329
R27R 27
MO V2 M O V2 R4R 4
C2C 2
Q9Q 9
R9 R9Ø
F8 F8
C73 C73 C72 C72 C71 C71 C7 C7Ø
R42 R42Ø
R423 R423 J24 J23 3J24
J23
3 Ø A 32VA 32V
3 3 Ø A 32VA 3 2V
J21J21
3030
3030 C64C64
R22 R22 U2 U2
K6 K6
JU1JU
1
JU2 JU2 DB1 DB1
Screws Screws
Screws
Control Board
Reset Button
Connections
Coaxial
Connector
Alarm
18
L1
K2
Z22
F2
MO V1 D1 CHGR
OVLD
D129
Z4
D2
C11
C13 D16
F9
K1
F3
K3
K4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
GR
WH
YL
BL
RD
BR
F7
24V
CTRL
OVLD TIMER RUNNING GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT
LEARN
LIMITS
GATE 1
LEARN XMITTER LOCK /
ON OFF
C69
PWR
AC PWR
/SOLAR R32 9 R27
MO V2 R4
C2
BIPART DELAY
Q 9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24 J23
3 Ø A
32V
3 Ø A 32V
J21
30 30 C64
R22 U2
K6
JU1
JU1
JU2 DB1
R184
18
K2
Z 22
F 2 MO V1 D1
D129
Z4
D2
C 11
C13 D 16
F9
K 1
F3
K 3
K 4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
F7
24V
GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT LEARN
LIMITS
GATE 1
C69
R329
R 27
M O V2 R 4
C 2
Q9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24
J23
3 Ø A
32 V
3 Ø A 3 2V
J21
30 30 C64
R22 U2
K6
JU
1
JU2 DB1
18
L1
K2
Z22
F2
MO V1 D1 CHGR
OVLD
D129
Z4
D2
C11
C13 D16
F9
K1
F3
K3
K4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
GR
WH
YL
BL
RD
BR
F7
24V
CTRL
OVLD TIMER RUNNING GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT LEARN
LIMITS
GATE 1
LEARN XMITTER LOCK / ON OFF
C69
PWR
AC PWR
/SOLAR R32 9 R27
MO V2 R4
C2
BIPART DELAY
Q 9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24 J23
3 Ø A 32V
3 Ø A 32V
J21
30 30 C64
R22 U2
K6
JU1
JU1
JU2 DB1
R184
18
K2
Z 22
F 2 MO V1 D1
D129
Z4
D2
C 11
C13 D 16
F9
K 1
F3
K 3
K 4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
F7
24V
GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT LEARN
LIMITS
GATE 1
C69
R329
R 27
MO V2 R 4
C 2
Q9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24
J23
3 Ø A 32 V
3 Ø A 3 2V
J21
30 30 C64
R22 U2
K6
JU
1
JU2 DB1
18
L1
K2
Z22
F2 MO V1 D1 CHGR
OVLD
D129
Z4
D2
C11
C13 D16
F9
K1
F3
K3
K4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
GR
WH
YL
BL
RD
BR
F7
24V
CTRL
OVLD TIMER RUNNING GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT
LEARN
LIMITS
GATE 1
LEARN XMITTER LOCK /
ON OFF
C69
PWR
AC PWR
/SOLAR R32 9 R27
MO V2 R4
C2
BIPART DELAY
Q 9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24 J23
3 Ø A
32V
3 Ø A 32V
J21
30 30 C64
R22 U2
K6
JU1
JU1
JU2 DB1
R184
18
K2
Z 22
F 2 MO V1 D1
D129
Z4
D2
C 11
C13 D 16
F9
K 1
F3
K 3
K 4
F1
Z12
GATE 2
GR
WH
YL
BL
RD
BR
F7
24V
GATE 2
SET OPEN
LIMIT SET CLOSE LIMIT LEARN
LIMITS
GATE 1
C69
R329 R 27
MO V2 R 4
C 2
Q9
R9Ø
F8
C73 C72 C71 C7Ø
R42Ø
R423 J24
J23
3 Ø A 32V
3 Ø A 3 2V
J21
30 30 C64
R22 U2
K6
JU
1
JU2 DB1
Screws
Select Mounting Holes
Select holes to be used for mounting and knock out
using a screwdriver and hammer.
1
2
3
Screws (4)