Cateye EC-2300R Service Manual download pdf (Page 15)

Check Method of Causes Repair Method Explanation Figures

EC-1200 EC-1600 EC-3600 EC-3700

Applicable Models:

Cateye Ergociser Series 1000 Service Manual

T-2

Line on CDC Sensor

Power Supply Board

No Display of Cadence (The cadence remains at zero (0) and does not count when the pedal is rotated.)

[1] Checking the Control Unit

1. Turn off the power. Loosen the four screws on the handlebar

stem to remove the control unit.

2. Remove the cable connector which is connected to the back of

control unit.

3. Slowly rotate the pedal while measuring the resistance across

the connector terminals 1 and 2 of the 5P cable. (Fig. 1)

t When there is one short-circuiting (resistance becomes

zero) during one rotation of the pedal, the control unit is

defective.

When there is no short-circuiting, proceed to the following check

procedures.

[2] Checking the Main Unit

1. Remove the frame cover. (See the Section D-1 and D-2

"Removing the Frame Covers.")

2. Remove the CN-3 connector on the power supply board. (Fig.

3. Slowly rotate the pedal while checking shortcircuit across the

two terminals of the CN-3 connector by using a tester to see if

there is one short-circuiting during one rotation of the pedal.

(Fig. 3)

t If short-circuiting is found, the 5P cable which connects the

power supply board and the control unit is defective.

When there is no short-circuiting, proceed to the following check

procedures.

[3] Check the positional relation between the CDC sensor and the

magnet of the large gear. (Fig. 4)

1. Align the line on the CDC sensor with the center of the CDC

magnet. (Fig. 5)

2. Secure a gap of about 2mm between the surface of the CDC

sensor and that of the CDC magnet. (Fig. 5)

Check if there is any short-circuiting in the CN-3 connector again.

t When a short-circuiting is found, the positional relation

between the CDC sensor and the CDC magnet of the large

gear is incorrect.

t When there is no shortcircuit, the CDC sensor is defective.

Fig. 1

Fig. 2

Fig. 3

Red Cable

Black Cable

Fig. 4

CN-3 Connector

Line on CDC Sensor

Center of CDC Magnet

Fig. 5

Gap of 2mm between CDC Sensor and CDC

Magnet

No Display of Cadence

Replace the CDC sensor. (See the Section ES-5

"Replacing the CDC Sensor".)

Replace the control unit with a brand new one.

Replace the 5P cable. (See the Section ES-2

"Replacing the 5P Cable.")

Terminal 2

Terminal 1

Red Cable

Black Cable

5P Cable

The case a short-circuiting is found. One zero (0)

is detected during one rotation of the pedal.

The case of no short-circuiting

The case of no short-

circuiting

The case a short-circuiting is

found. One zero (0) is detected

during one rotation of the pedal.

Center of CDC Magnet

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 70 71

Comments to this Manuals

No comments

Cateye EC-2300R Service Manual Page 15

Comments to this Manuals

Related products and manuals for Bicycles Cateye EC-2300R