Lectrotab JLC Series Guide

Joystick Control
JLC Series
Installation/Operation
Linear Devices Corporation
dba Lectrotab
11126 Air Park Road, Suite G
Ashland, VA 23005
www.lectrotab.com
Phone: [phone]
Email: [email protected]om
August 2023
ELECTROMECHANICAL TRIM TAB SYSTEMS

2
Table of Contents
Introduction/Safety
3
How Do Trim Tabs Work
4
Display Keypad Installation and Wiring
5
JLC Wiring Diagrams
6-9
Verify Display Settings and Operation
10
Programming JLC Keypad
11-12
Troubleshooting/Specifications
12

3
Introduction
The Joystick leveling control system incorporates all the features and benefits of the SLC One
Touch control. The Joystick control is designed to directly replace any Lectrotab control with
only minor modifications. The Joystick control is potted and sealed to be waterproof.
Actuators connect directly to the keypad, so no power module box is necessary.
The Lectrotab Joystick control (JLC) design advantages and features include:
• Easy to use “Joystick” control to raise or lower tabs
• Improved fuel efficiency and faster speeds
• Single or dual actuator/tab operation
• Single station operation or dual station operation with an additional keypad and JR cable
• Automatic deployment to last tab position when ignition key switch is turned off and back
on (see program chart)
• Direct actuator connection to display
• Automatic tab retraction when connected to accessory switch or ignition key switch
• Direct replacement for any Lectrotab control with minor modifications
• Completely sealed and waterproof display
• Automatic dimming of display LED indicators in darkness and brighten in sun light
•NMEA2000 Compatible for trim tab position display on MFDs (Requires optional JLC-NMEA
adapter)
• Operates on 12 or 24 Volts DC
• 2 Year Warranty
Safety
•Failure to follow all instructions listed in this manual may result in equipment failure or
serious injury.
•If using trim tabs for the first time, follow the Operation section of this manual to familiarize
yourself with the feel and response of your trim tab system.
•Never deploy tabs in a following sea. Keep tabs fully retracted in a following sea.
•Never deploy tabs quickly at high speeds or above cruising speeds. This may cause the boat
to turn quickly and become unstable and difficult to control.
•Stay alert, watch what you are doing and use common sense when operating your trim tab
system.
•Do not use the trim tab system when under the influence of drugs, alcohol or medication.
A moment of inattention while operating the trim tab system my result in serious injury.

4
How Do Trim Tabs Work
Boaters will enjoy many performance and efficiency benefits by adding Lectrotab trim tabs.
Lectrotab trim tabs improve fuel efficiency, increase boat speed, accelerate shallow water
planing, eliminate porpoising, and enhance the overall boating experience with a more
comfortable ride.
• Improved Fuel Efficiency and Faster Speeds
Most importantly, the trim tabs may be adjusted to optimize speed and fuel efficiency.
Typically, the bow rides high causing the stern to drag in the water at cruising or lower
speeds. A boat owner will attempt to correct this problem by trimming his outdrive
down to bring the bow down. This adjustment is extremely inefficient and reduces
boat speed and increases fuel consumption, because trimming of the outdrive pushes
water down to allow the transom to rise and bow to lower. In this scenario, the
outdrive is not only propelling the boat forward but it is also pushing the bow down.
The most efficient way to operate the boat is to adjust the tabs to maximize boat
speed and level. The outdrive may then be adjusted so the prop shaft is parallel to the
water to maximize the thrust to push the boat forward.
• Faster Planing
For shallow water starts, trim tabs allow the boat to get up on plane faster. Faster
planing can be accomplished by lowering the tabs to the fully deployed position. As
the boat achieves plane, trim tabs may be raised until the boat is level.
• Porpoising
Occasionally, an uneven load distribution or certain speeds will cause the boat to
“porpoise”. This problem can easily be corrected by deploying both trim tabs
simultaneously a few degrees until the “porpoising” stops.
• Boat Leveling
Every boat owner has experienced passengers or equipment moved to one side of the
boat, which causes the boat to lean to one side and leads to difficulty in handling the
boat as well as an uncomfortable ride. Trim tabs give the ability to correct this problem
by deploying the tab on the same side as the boat is leaning towards which levels the
boat for a more comfortable ride.
• Head Sea
Rough sea conditions can also be better managed with trim tabs. Typically, in a head
sea, the boat speed must be reduced causing the bow to ride high. The waves will
pound and beat the boat bottom for an extremely uncomfortable and slow ride. Trim
tabs can be deployed to level the boat out and allow the hull to cut through the waves
for a smoother and more efficient ride.
• A Beam Sea or Wind
A beam sea or wind can lead to a wet ride. To greatly reduce or eliminate the spray
caused by waves or wind hitting the boat side, the windward side trim tab may be
deployed to raise the windward side of the boat. Also retracting the leeward trim tab
side may help.

5
Display Keypad Installation & Wiring JLC-11
(For dual actuator tabs, connect actuators from same tab in parallel)
Mounting Display Keypad:
1. Locate the display keypad at the helm where it is convenient to access and view the
LED indicators and a flat level surface.
2. Drill one 2.625” (67mm) hole as shown on page 6 for mounting display. Remove the
aluminum mounting plate from four mounting studs. The aluminum mounting plate
can be used as a drill template.
3. Apply a bead of silicone sealant around the underside of the display where the
rubber overlay meets the black potting material. This will prevent water from
entering under the display and reaching the wiring connections. See the diagram
below.
4. Mount the display with the aluminum plate, washers and nylon nuts provided. Only
use nylon nuts provided. Do not overtighten the nylon nuts.
Display Keypad Wiring:
1. Refer to wiring diagrams for the JLC-11 wiring connections.
2. The red (+12vdc or +24vdc) wire from the boat’s fuse panel and black battery
negative wires should be a minimum size of 14 AWG (2.5mm²).
3. Important: DC voltage source connected to JLC-11 keypad must match actuator
voltage (first letter in actuator serial A, C or S =12vdc, B or D = 24vdc).
4. The AUX terminal must be connected to ignition key run position or accessory
switch to automatically retract the tabs when key is switched to OFF and turn on
the display when key is switched to ON.
5. For dual station connections, a second JLC-11 keypad and one JR-** (**=length in
feet) serial communication cable/plug assembly is required. See wiring diagram on
page 7 for JR plug connection point.
6. For single station NMEA 2000 connection see wiring diagram. One JLC-NMEA
adapter is required to connect to the JLC-11. A NMEA 2000 cable drop and any
NMEA backbone tees must be purchased separately. For dual station NMEA 2000
systems, two JLC-11 and two JLC-NMEA adapters are required.
7. For dual actuator per tab installations, connect both actuator wires from each tab
in parallel and follow the wiring diagram on page 8. Connect each actuator white
wire to white wire and black wire to black wire from the same tab to the back of the
keypad or terminal strip if using a W4-** cable.
Apply a bead of silicone sealant around the underside
of the display where the rubber overlay meets the
black potting material. This will prevent water from
entering under the display and reaching the wiring
connections.

6

7

8

9

10
Verify Display Settings and Operation JLC-11
Set Actuator Deployment Time:
Follow the programming chart and instructions on page 10 and 11 to program keypad to
match the actuator deployment time (first letter in actuator serial A or B = 8 seconds
(factory default), C or D = 4 seconds and S = 6 seconds).
Verify Connection and Operation:
1. Press and hold the joystick forward “ALL DN” (All Down), and both actuators/tabs deploy
simultaneously. Release joystick to stop.
2. Press and hold joystick backward to “ALL UP”, and both actuators/tabs will retract
simultaneously. Release joystick to stop.
3. If the tab or tabs are moving in the opposite direction as described, switch or reverse the
two actuator wires on the back of the keypad for the tab that moves in the wrong direction
(for example switch black and white wires at port terminals for port actuator).
4. With tabs fully retracted, press and hold joystick to right “STBD”, and the port actuator/tab
will deploy and release when fully deployed. Press and hold joystick to the left “PORT” to
retract the port tab and release when fully retracted.
5. With tabs fully retracted, press and hold joystick to the left “PORT”, and the starboard
actuator/tab will deploy and release when fully deployed. Press and hold joystick to the
right “STBD” to retract the starboard tab and release when fully retracted.
6. If the wrong tab is moving as described in step 4 and 5, exchange the port and starboard
wires on the back of the keypad and repeat the testing process.
7. Press and hold the joystick forward until 4 LEDs on each side are lit. Press and hold joystick
to right “STBD” and starboard tab will retract and right LEDs will reduce. At the same time,
the port tab will deploy and left LEDs will increase.
Photo sensor to
automatically brighten
and dim LEDs
LEDs indicate tab
position
All Down and All Up
function adjust both tabs
by pressing joystick
forward to deploy and
back to retract.
Adjust Starboard side by
pressing joystick right for
down and left for up.
JLC-11 Display
Adjust Port side up by
pressing joystick left
for down and right for
up.

11
LED Position Indicators:
When retracting actuators/tabs, the top LED indicators will flash and then remain lit to show
tabs are fully retracted. The LED indicators show approximate tab position based on time. A
standard “A” series actuator takes approximately 8 seconds to fully deploy or retract.
Automatic Tab Retraction:
There are a couple of options for automatically retracting the trim tabs. You may connect the
accessory or run terminal of the ignition key switch to “AUX” terminal on keypad. When the
ignition key switch is turned off, the tabs will retract automatically, and the display will turn
off. Another option is to connect the “AUX” terminal to one side of an accessory switch and
the other to +12vdc (see wiring diagram), so the tabs will only retract when this switch is
turned off.
Programming JLC-11
Enter, Adjust and Exit Program Mode:
•Before entering program mode, 12vdc or 24vdc must be applied to JLC terminals
+12vdc and battery negative (see wiring) and AUX 12vdc must be off (ignition key
switch or accessory switch off).
•Push and hold joystick on keypad for 4 seconds or longer in “Enter” column on the
programming chart, then switch the ignition key switch or accessory switch to on.
Release the joystick.
•Follow the instructions under “Change Setting” in the program chart to change the
current setting.
•Push and hold the joystick to the right for a few seconds to save setting and exit
program mode.
Exit Program: Push and hold
joystick to the right for 4 or
more seconds to exit
program mode and save new
setting.
Actuator Timing: Push and
hold joystick to left for 4 or
more seconds then turn the
key switch on and release
joystick to enter program
mode for actuator timing.
Independent Tab Control: Push
and hold joystick 45° towards
upper left corner for 4 or more
seconds to enter program mode.
Push and hold joystick forward or
backward to change Setting
Value.
Swap LEDs: Push and hold
joystick to right for 4 or more
seconds then turn the key
switch on and release joystick
to enter program mode for
swapping LED movement to
same side as joystick pressed.
JLC-11 Display

12
Programming Chart
Program Mode Sequence
Setting
Enter
Change
Setting
Exit and Save
Range
Default
Program Details
Auto Retract
Previous
Position
Push & hold
joystick
backward 4
sec. or longer
Push and hold
joystick
forward or
backward
Push and hold
joystick to
right for 4 sec.
or longer
Standard or
Remember
last position
Standard
8 LEDs = Standard Auto Retract
1 LED = Return to last tab
position before key switch off
Actuator
Time
Push & hold
joystick left 4
sec. or longer
Push and hold
joystick
forward or
backward
Push and hold
joystick to
right for 4 sec.
or longer
4 to 12
seconds
8
seconds
8 LEDs = 8 seconds
6 LEDs = 6 seconds
4 LEDs = 4 seconds
Swap LED
Tracking
Push & hold
joystick right 4
sec. or longer
Push and hold
joystick
forward or
backward
Push and hold
joystick to
right for 4 sec.
or longer
LEDs track
opposite side
or same side
as joystick
press
Opposite
1 LED = LEDs track opposite of
joystick press
8 LEDs = LEDs track same side
as joystick press
Independent
Tab Control
Push & hold
joystick 45°
towards upper
left corner 4
sec. or longer
Push and hold
joystick
forward or
backward
Push and hold
joystick to
right for 4 sec.
or longer
Enable or
Disable
Disable
1 LED = Disabled or tabs do not
operate independently
8 LEDs = Tabs operate
independently
Automatic Tab Retraction to Previous Position:
When the accessory switch or ignition key switch (connected to keypad “AUX” terminal) is
turned off, the tabs will automatically retract. When the accessory switch or ignition key
switch is turned back on, the tabs will adjust to the last known position before key switch was
turned off. Follow the instructions on page 11 and 12 to program the keypad for this feature
(Auto Retract Previous Position). Turning main battery power off will erase previous tab
position and adjust to new position on next trip.
Actuator Time:
Follow the programming chart and instructions on page 11 and 12 to program keypad to
match the actuator deployment/retract time (first letter in actuator serial A or B = 8 seconds
(factory default), C or D = 4 seconds and S = 6 seconds).
Swap LED Tracking:
Refer to program instructions on page 11 and 12 for “Swap LED Tracking” to move the LED
indicators to the same side as the joystick being pressed for Bow Up/Down. The default
setting shows the “tab position”on the LED indicators (i.e. pressing STBD joystick shows
port tab being deployed and LEDs lit on left side of keypad). Swapping the LED indicators to
same side as joystick being pressed shows what side of the vessel is going down or up.
Program this to customer preference.
Independent Tab Control:
Refer to program instructions on page 11 and 12 for “Independent Tab Control”. The default
is tabs can only be adjusted up, down, right and left. For independent tab control, follow the
program chart above to enable. This will allow independent tab control by pushing the
joystick at 45° angles to left for starboard tab and 45° angles to right for port tab.

13
JLC-11 Troubleshooting
LEDs do not light:
1) Test for +12vdc (or 24vdc) on back of JLC keypad at red “+” sticker terminal and
middle terminal (battery negative).
2) Turn on ignition key switch or accessory switch (see Auto Tab Retraction p.11) which
should show 12 or 24vdc on “AUX” terminal when switched on. The “AUX” terminal
on the back of keypad must be connected to the ignition key switch or accessory
switch. Turn key switch or accessory switch to ON and make sure battery selector
switch is turned on to light LEDs on keypad.
Specifications
Model
Number
Display
Color
Number of
Stations/Actuators
Overall
Width
Overall
Height
Mounting
Hole Cutout
(Diameter)
DC
Voltage
Fuse Size
Power Input
(1 Actuator per
Tab)
Fuse Size
AUX Terminal
(MUST
CONNECT)
JLC-11
Black
1 or 2 Stations/
1 or 2 Actuators/tab
3"X3”/
77X77mm
3.5”(89mm)
2.625” (67mm)
12/24
12vdc = 15 or 20
amp
24vdc = 10amp
1 to 2 amp
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