Shimano SC-TX30 Service Instructions

Brand: Shimano

Model: SC-TX30

Type: Service Instructions

This manual is also suitable for

Current speed or

odometer

Clock

(always displayed)

Current speed bar format

(1 segment: 1 km/h / 1 mph)

Battery cover

(Tighten securely so that it is in the position

shown in the illustration.)

Sensor

Button

■ Handlebar dimensions

The handlebar should have a minimum length of

85 mm in the straight section for mounting.

General Safety Information

WARNING TO PARENT / GUARDIAN

– To avoid serious injuries:

USE OF THIS PRODUCT IN ACCORDANCE WITH THESE SERVICE INSTRUCTIONS IS ESSENTIAL FOR YOUR

CHILD'S SAFETY. MAKE SURE YOU AND YOUR CHILD UNDERSTAND THESE SERVICE INSTRUCTIONS.

FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.

• The analog compass (SM-TX32) may not always point to the right direction if it is installed to the bicycle in a

place where it is affected by metal such as brake cables.When checking the direction, stop the bicycle and

remove the compass from the bicycle. If you try to check the compass while the bicycle is moving, the bicycle

may become unstable because of being ridden with one hand, and this may cause a fall.

• Be careful not to pay excessive attention to the computer data while riding and do not change the display while

riding, otherwise you might have an accident.

• Keep used batteries out of the reach of children, and dispose of them in accordance with local waste regulations.

If batteries are swallowed by mistake, seek medical advice immediately.

• Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.

Note

• If there is no signal from the sensor for 120 seconds, the power save function will operate and the LCD will turn

off.

• Never disassemble the cycle computer, as it cannot be reassembled.

• The cycle computer is fully waterproofed to withstand wet weather conditions; however, do not deliberately place it

into water.

• Avoid leaving the cycle computer exposed to extreme hot weather conditions as much as possible, because if the

cycle computer is left exposed to high temperatures or direct sunlight for long periods of time, the LCD may

become darkened. If this happens, place the cycle computer in the shade to let it cool down. It will then return to

normal.

• The ambient operating temperature range for the cycle computer is -10°C to 50°C. If the temperature is outside

this range, the movement of the data display may become sluggish or data may not be displayed.

• Handle the cycle computer carefully, and avoid subjecting it to any shocks.

• Do not use thinner or other solvents to clean parts such as the cycle computer and sensor, as such chemicals

may dissolve the part casings.

• To clean these parts, wipe them with cloth soaked in a weak mixture of neutral detergent and water.

• The battery which is included when the product is purchased is for the display computer, so the battery life may

be shorter than expected.

• Insert the battery so that the (+) side is visible. If the battery is inserted the other way around, the initial setting

data will be cleared.

• The analog compass (SM-TX32) may not always point to the right direction if it is in a place that is affected by

magnetism, even if it has been removed from the bicycle.The direction indicted by the compass should be used

only as a reference.

• If the analog compass becomes damaged or starts leaking, stop using it immediately.

• Use the analog compass in a place which is free from steel and sources of magnetic fields.

• This analog compass is classed as a toy for simplified indication of directions. It should not be used for serious

applications such as mountain climbing.

• Do not leave the analog compass in places which may reach temperatures of -20°C or lower or 50°C or higher.

• Parts are not guaranteed against natural wear or deterioration resulting from normal use.

The analog compass may not indicate the correct direction in the following cases:

• If it is placed near the outer casing or inner cable of the bicycle (because of magnetism).

• If it is near high-voltage power lines, railroad tracks (including underground tracks), manhole covers or steel

building frames. However, these are not the only objects that may affect the analog compass.

The characteristics of the analog compass mean that it may react to weak magnetic forces and metallic

objects, so be careful to use it in a suitable environment.

WARNING

Cycle computer

Bracket

SC-TX30 (Speedometer)

SC-TX31 (Shift Timing Indicator (Tachometer))

SM-TX32 (Analog Compass)

SM-TX30 (For speedometer, shift timing indicator (Tachometer),

analog compass and gear indicator / ID-TX50)

SM-TX31 (Bracket cowling)

Combination Specifications

Technical Service Instructions SI-7C80A

SC-TX30 / SC-TX31

SM-TX30 / SM-TX31 / SM-TX32

Speedometer / Shift Timing Indicator (Tachometer)

Bracket / Bracket cowling / Analog Compass

Installing the SC-TX30 (speedometer)

First remove the cover of the SM-TX30 that is installed to the handlebar, and then

place the SC-TX30 onto the top of the SM-TX30 and secure it by tightening the fixing

screw.

• Use EZ cable clamps and cable ties to secure

the sensor cable.

• Use a cable length adjuster to take up any

slack in the cable and to secure it to the cable

clamp on the bracket.

Note:

Secure the cable tightly so that it does not stick out from the frame.

Be particularly careful to secure the cable where it runs near the

crank arm.

For the front suspension, allow enough extra length for the

suspension stroke when adjusting the length of the cable.

When routing the cable near the bottom bracket, pass the cable

over the bottom bracket.

Installing the SC-TX31 (shift timing indicator (Tachometer))

Align the [–] mark on the SC-TX31 with the [–] mark on the underside of the SM-TX30,

and push the indicator in to install it.

Installing the SM-TX32 (analog compass)

Align the projection on the SM-TX32 with the [–] mark on the underside of the SM-

TX30, and push the compass in to install it.

Installing the SM-TX31 (cowling)

Align the cowling with the front of the SM-TX30 and snap it on.Then hook the ends of

the cowling onto the sides of the SM-TX30 and secure

it by tightening the two screws.

Stem width ≤ 55 mm

Handlebar length: 520 - 580 mm

Stem nut protrusion portion ≤ 15 mm

10° from horizontal

Handlebar:

22.2 - 25.4 mm dia.

■ Recommended Handlebars & Stems

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

3-77 Oimatsu-cho Sakai-ku, Sakai, Osaka 590-8577, Japan

Please note: specifications are subject to change for improvement without notice. (English)

Installing the SM-TX30 (bracket)

85 mm or more

The platform will protrude 120 mm

from the handlebar. Ensure that it

does not interfere with the front

bracket.

<SC-TX30>

• Hook the groove of the magnet holder onto the

intersection of spokes on the left side of the

front wheel as shown in the illustration, and

provisionally secure it there.

• Provisionally secure the sensor to the front fork

with double-sided tape and a cable tie, adjust

the magnet so that it is aligned with either one

of the two grooves on the sensor and so that

the distance between the magnet and the

sensor is 1 - 5 mm as shown in the illustration.

Then secure the sensor and the magnet.

Tightening torque:

1 - 1.5 N·m {9 - 13 in. lbs.}

Plastic adapter

ø22.2mm

ø25.4mm

Clamp band

Center of handlebar

Handlebar

Tightening torque:

0.3 - 0.5 N·m {3 - 4 in. lbs.}

Tightening torque:

0.3 - 0.5 N·m {3 - 4 in. lbs.}

Installation method Installing the sensor and magnet

When checking the direction, turn the compass counterclockwise to unlock it, and then

remove it from the bracket.

After checking, align the projections on the compass with the hollows in the bracket,

and turn the compass clockwise to lock it onto the bracket.

SC-TX31

SM-TX32

SM-TX30

ID-TX50-R

Unlock

Lock

SC-TX30

EZ cable

clamps

SC-TX31

EZ cable

clamps

Cable length adjuster

EZ cable clamps

■ Part names (SC-TX30)

■ Data input

Use the buttons at the back to change the display. If you do not press anything for 5

seconds while the display is flashing, the current settings will be confirmed and the display

will change to the next item.

■ Mode selection

You can switch between speed and cumulative distance displays by pressing the button on

the underside of the cycle computer.

(1) Check the tire size.

(2) Insert the battery (CR2032).

(3) "km/h" flashes.

(4) For mile display, press the button once to change the

display.

Note:

The SC-TX30 / SC-TX31 are available with either km

display or mile display. If using the km speedometer,

settings should be made in terms of kilometers, and

if using the mile speedometer, settings should be

made in terms of miles. If the wrong units are used,

the numerical values displayed will not be correct.

(5) The numbers flash. (22 inches will flash initially.)

To display the size of the tire being used, press the

button several times to change the display.

(6) "AM" flashes.

For PM display, press the button once to change the

display.

(7) The numbers flash.

To display the 1st clock digit (hour), press the button

several times to change the display.

(8) Repeat step (7) for 2nd and 3rd clock digits.

(9) The numbers flash.

To display the last clock digit (minutes), press the

button several times to change the display.

(10) If you press and hold the button for 5 seconds or if

you do not press anything for one minute, the clock

setting will be confirmed, and this will complete the

setting.

Cycle computer settings (SC-TX30, SC-TX31)

(1)

(2)

Open

CR-2032

(3) (6)

(7) (8)

(9)

(5)

(4)

■ Resetting settings

To reset the settings, press the button once to start the cycle

computer.Then remove the battery, wait 30 seconds, and

then follow the data input procedure.

To change the setting, press the button once to start the

cycle computer. Switch the cycle computer to Speed mode

(km/h or mile/h). Press and hold the button for at least 5

seconds, and then follow the data input procedure.

To change the setting, press the button once to start the

cycle computer. Switch the cycle computer to Odometer

mode (km or mile). Press and hold the button for at least 5

seconds, and then follow the data input procedure.

One method of obtaining a comfortable ride is to ride with the front gears at a fixed gear

speed.The SC-TX31 can show the front gear speed in an analog-type display, and the

gears can be shifted within the range set by the "GOOD" position so that a comfortable

ride can be obtained. (When pedaling becomes light, the front gear speed increases, and

when it becomes heavy, the speed decreases.) In general, the three speeds given in the

example are comfortable speeds.

■ Setting

15 seconds after the battery (CR2032) is inserted, the LCD screen will be displayed.

The rider can move the GOOD mark on the ring to either the right or left in order to

determine the position which is best for the rider.

<Example> 40 - 50 RPM <Example> 50 - 60 RPM <Example> 60 - 70 RPM

Press

Setting complete

Magnet Sensor

Groove

Double-sided tape

Front Rear

SC-TX30

■ Part names (SC-TX30)

Tachometer

(analog-type display 1 segment: 5 rpm)

Tachometer

Battery cover

(Tighten securely so that it is in the position shown

in the illustration.)

Sensor

Front Rear

<SC-TX31>

Note:

• Be sure to install the sensor to the left side

of the wheel so that it does not interfere

with the operation of the front derailleur.

• Check that there is no oil or similar on the

sensor in the place where the double-sided

tape is to be attached.

• If distance between chainstay

and crank arm is 15 - 26 mm

• Based on current magnet

sensing distance, b ≤ 10

• Without adapter: 15 ≤ a ≤ 26

• With adapter: 26 ≤ a ≤ 32

Units (mm)

• Provisionally secure the sensor to the chainstay and the

magnet to a crank arm with cable ties, place the magnet so

that it is aligned with either one of the two grooves on the

sensor, and then secure the sensor and the magnet with cable

ties and double-sided tape.

• If the distance between the chainstay and the crank arm is 26

- 32 mm adjust by using an adapter.

Chainstay

Magnet

Adapter

Sensor

Magnet

Crank arm

SM-TX31

Installing the SM-TX30 (bracket)

Open the clamps of the SM-TX30, install it to the handlebar and provisionally tighten

them.There are two types of adapter available, for 25.4 mm and 22.2 mm diameter

handlebars, so use whichever adapter matches the diameter of the handlebar.

SM-TX30

Shimano SC-TX30 Service Instructions

Brand: Shimano

Model: SC-TX30

Type: Service Instructions

This manual is also suitable for

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Shimano SC-TX30 Service Instructions

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Shimano SC-TX30 Service Instructions

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