SportsArt C570R User manual

C570R Repair Manual (Electronics)

Table of Contents

1-1-1. Product Picture - C570R

1-2-1. Display Picture - C570R/C570U

1-3-1. Component Placement - C570R Display

1-3-2. Component Placement - C570U Lower Body

1-3-3. Component Placement - Contact (HTR) heart rate components

1-4-1. Block Diagram - C570R Electronics

1-5-1. Connections - C570R/U Display

1-5-2. Connections - C570R Drive Board

1-6-1. Drive Board Indicator LEDs - C570R/C570U

1-7-1. Electronic Specifications - C570R/C570U

2-1-1. Electronic Malfunction Troubleshooting Table - C570R/C570U

2-1-2. Electronic Malfunction Troubleshooting Table - C570R/C570U, Continued

3-1-1. Troubleshooting: Unit Will Not Start (Alternator)

3-2-1. Troubleshooting: Unit Will Not Start (Battery)

3-3-1. Troubleshooting: No RPM Value Appears

3-4-1. Troubleshooting: No Resistance

3-5-1. Resistance Is Excessive

3-6-1. Fan Does Not Operate

3-7-1. No Telemetry Heart Rate Reception

3-8-1. Soft Key Malfunction

3-9-1. Display Key Switch Malfunction

3-10-1. Contact Heart Rate Malfunction

3-11-1. Basic Parameter Mode

4-1-1. Mechanical Maintenance Schedule – C570R

4-2-1. Mechanical Troubleshooting Points – C570R

1-1-1. Product Picture - C570R

1-1-1

1-2-1. Display Picture - C570R/C570U

1-2-1

1-3-1. Component Placement - C570R Display

1-3-1

CARDIO board

Display board

Telemetry heart

rate receiver

board

Earphone jack

board

Fan motor

1-3-2. Component Placement - C570U Lower Body

1-3-2

Drive board

Battery

(on other side)

Alternator

Electro-magnet

CSAFE board

Optic sensor

Cable connectors

1-3-3. Component Placement - Contact (HTR) Heart Rate Components

1-3-3

HTR board

HTR cable

 Connects HTR

contacts to HTR hub

board

HTR bridge (or hub)

board

HTR sensor plate

1-4-1. Block Diagram - C570R Electronics

1-4-1

Display

board

Drive

board

Keypad

Bridge

board

Fan motor

HR receiver

Sensor – L

Sensor – R

CARDIO board

Electro-

magnet

Optic sensor

Battery

Alternator

CSAFE

Battery charger

connector

HTR

Board

1-5-1. Connections - C570R/U Display

1-5-1

To cardio board

To drive board

To fan

To telemetry heart rate

receiver

To soft keys

To cardio board

To soft keys

1-5-2. Connections - C570R Drive Board

1-5-2

To alternator

To HTR board (only

use on

C570R)

To electro-magnet

To optic sensor

To display board

To battery

To display board

1-6-1. Drive Board Indicator LEDs - C570R/C570U

1-6-1

LED2

Lit = battery is being

recharged.

LED3

Lit = VDD power indicator

LED1

Lit = VCC power indicator

F1 battery fuse

F2 alternator fuse

1-7-1. Electronic Specifications - C570R/C570U

Specification Explanation Notes

Power supply AC alternator power

Information window

1.HRC window: 65%, 80%, Heart rate

2.Calories, Distance, Time, RPM

3.Cal/HR, Mets, Watts, Speed

Illustration window 5X8 two-color LED dot matrix (square)

Setting window Four-character 7-segment displays

Resistance range Level 1 – level 20

Heart rate detection

HTR (contact) heart rate detection

Telemetry heart rate detection (transmitter

strap)

KPH/MPH setting Set via the program

Fan Stop, low, medium, high settings

Operating mode

Manual, Random, Plateau, Interval, Fat

Burn

Fit Test, WT Loss, Cardio, Custom HR

1-7-1

2-1-1. Electronic Malfunction Troubleshooting Table - C570R/C570U

Malfunction

Circumstance Inspection Items Replace

Components

Notes

Cannot

turn on unit

When the display

is not lit, I pedal,

but the display

doesn’t light.

1. Inspect all cable connections.

2. Inspect alternator output voltage.

3. Inspect drive board fuse and power indicator LEDs.

4. Inspect battery voltage and connections.

5. Inspect display cable connections.

1. Drive

board fuse;

drive board

2. Alternator

Cannot

turn on unit

Display lights

while I pedal, but

not when I don’t

pedal.

1. Inspect or measure battery voltage.

2. Inspect the drive board fuse.

3. Inspect cable connections.

1. Battery

No RPM

value

When I pedal,

there is no RPM

value.

1. Inspect cable connections

2. Inspect whether the distance between the optic sensor

and sticker is 3-8mm.

3. Inspect the optic sensor LED on the drive board.

4. Replace the optic sensor or drive board.

1. Optic

sensor

2. Drive

board

No

resistance

1. When I pedal,

there is no

resistance.

1. Can the alternator start the unit?

2. Inspect the alternator fuse on the drive board.

3. Inspect whether the RPM value appears when you pedal.

If not, inspect the optic sensor signal.

4. Measure output to the electro-magnet from the drive

board.

5. Inspect electro-magnet wire connections.

1. Optic

sensor

2. Drive

board

Resistance

is

excessive

I press keys to

adjust resistance,

but resistance

remains very

heavy.

1. Inspect wire connections.

2. Replace the drive board.

1. Drive board

2-1-1

Contact heart rate

malfunction

I hold onto heart rate contacts

with both hands, but there is

no heart rate reading.

1. Inspect the HTR wire connection at

the bridge board.

2. Inspect the HTR signal LED.

3. Replace the HTR board.

1.HTR board

Key malfunction

(display)

I press the key but the key

doesn’t operate; or I don’t

press the key, the key

operates constantly.

1. Replace the key switches on the

display.

1. key switches

on the display

Key malfunction

(soft keys)

I press the key but the key

doesn’t operate; or I don’t

press the key, the key

operates constantly.

1. Inspect the soft key wire

connection.

2. Replace soft keys.

Soft keys

Fan doesn’t

operate

I press fan keys but the fan

doesn’t operate.

1. Inspect wires inside the display.

2. Measure voltage output from the

display to the fan.

3. Replace the fan motor.

Display, fan

board

2-1-2

Troubleshooting

Model: C570R

Malfunction: Unit will not start (alternator).

Circumstance: Start pedaling; the display shows no reaction.

Possible reasons: 1. Wires are not connected.

2. The drive board fuse has blown.

Troubleshooting: 1. Inspect wire and data cable connections.

2. Inspect the alternator. Do LED1 and LED3

on the drive board light when you pedal?

3. Inspect whether F2 fuse on the drive board

is burnt.

4. Replace the drive board as a test.

5. Inspect the display power LED and main

program IC.

3-1-1

Drive

Board

Display

board

Alternator

Fuse

Display

LED2 POWER indicator

Lit = power is supplied

Cable connectors

Drive Board

F2 alternator fuse

Alternator

LED1, VCC power indicator

LED3, VDD power

indicator

Troubleshooting

Model: C570R

Malfunction: Unit will not start (battery).

Circumstance: When I stop pedaling, the display turns off.

Possible causes: 1. The battery fuse on the drive board is burnt.

2. The battery power is too low because the bike has been out of use.

3. The battery charge function on drive board has failed.

Troubleshooting: 1. Inspect wire and data cable connections.

2. Measure the battery voltage. Normal: 5.2V or more.

3. Inspect F1 fuse on the drive board. Or replace the drive board

as a test.

4. Pedal at 50 RPM or higher to recharge the battery.

3-2-1

Drive

board

Display

board

Battery

F1 fuse

Display

LED2 POWER indicator

Lit= display receives power.

Cable connectors

Drive board

F1 battery fuse

Measure battery voltage

Troubleshooting

Model: C570R

Malfunction: No RPM value appears.

Circumstance: I pedal on the bike but no RPM value appears.

Possible causes: 1. Wires are not connected.

2. Optic sensor is malfunctioning.

Troubleshooting: 1. Make sure the distance between the optic sensor and the

reflective sticker is 3-8mm.

3. Make sure the sensor on the optic sensor board is clean.

2. Inspect the drive board.

3. Inspect all cable connections.

3-3-1

Drive

Board

Display

board

Sensor &

reflective

sticker

Drive board

To optic sensor

Display

Cable connectors

Troubleshooting

Model: C570R

Malfunction: No resistance.

Circumstance: I pedal on the bike, but there is no resistance.

Possible causes: 1. Display has no RPM value.

2. There is no output voltage from the alternator.

3. Drive board is defective.

Troubleshooting: 1. Inspect whether the display receives the RPM

signal.

2. Inspect whether the alternator can start the unit.

3. Inspect all cable connections.

4. Inspect the F2 fuse on the drive board. Measure

alternator output voltage. Or replace the drive board as

a test.

5. Inspect electro-magnet wire connections.

3-4-1

Drive

board

Display

board

Sensor

Alternator

Electro-magnet

Drive board

To optic sensor

Electro-magnet voltage

Level

Voltage（V）

LEVEL 1

2.1

LEVEL 10 9.1

LEVEL 20 16.0

F2 alternator fuse

Troubleshooting

Model: C570R

Malfunction: Resistance is excessive.

Circumstance: Press fan keys; the fan does not operate; but resistance is excessive.

Possible causes: 1. Drive board components have an electrical short.

Troubleshooting: 1. Inspect all cable connections;

Make sure that screws don’t create an electrical short in the wires.

2. Test Q7 on the drive board.

3. Replace U5 IC on the drive board.

3-5-1

Inspect Q7 for an electrical short

Q7 Test

Set multi-meter to the diode

setting. Test the three pins of Q7

for a short.

Replace U5

Troubleshooting

Model: C570R

Malfunction: Fan does not operate.

Malfunction: Press the fan key; the fan does not operate.

Possible causes: 1. Pedal rotation speed is below 50 RPM.

2. Fan motor is defective.

Troubleshooting: 1. Inspect whether speed exceeds 50 RPM.

2. Inspect wire connections from the display to the fan board.

3. Test whether the display sends voltage to the fan board.

If the display board does not send voltage to the fan board,

replace the display.

If the display board sends voltage to the fan board, but the

fan board doesn’t operate, replace the fan board.

3-6-1

Fan motor

Display

board

Fan key

Display

Fan

Fan voltage

Setting Voltage

HIGH 10 VDC

MID 8.5 VDC

LOW 6.5 VDC

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SportsArt C570R User manual

SportsArt C570R User manual

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