SportsArt Fitness C575U Operating instructions

C575U Repair Manual (Electronics)

1-1. Product Picture -C575U
1-1-1

1-2. Display picture -C575U
1-2-1

1-3. Component Placement - C575U Display
1-3-1
Dispaly
Program board
Polar board
USB board

1-3.Component placement- C575U lower body
1-3-2
B
attery *1
Speed sensor
D
rive board
Electro-magnet
Alternator
B
attery *1
M
odel board

1-3. Component placement- C575U lower body - C575U
1-3-2
B
attery *1
Electro
-
magnet
M
odel board
Alternator

1-4. Block Diagram - C575U Electronics
1-4-1
Display
Board
Drive
Board
Electronic
Magnet
Speed Sensor
C
harger
Alternator
keypad
USB Board
HR
receiv
er
C-SAFE Board
Battery
Model board
Fan
HTR board
S
ensor
-
R
S
ensor
-
L

1-5.接線示意圖-C575U

1-5. Connections - C575R/U Display
1-5-1
P
rogram board
T
o soft key
To USB board
T
o Polar board
T
o Fan
T
o HTR board
T
o USB & CSAFE
To Drive board
T
o USB board

1-5. Connections - C575R/U Display
1-5-2
USB board
To Display
To program board ( upgrade program)
To blue-tooth key
To Display

1-5. Connections - C575R/U Display
1-5-3
T
o Electro
-
magnet
T
o battery
To display
To Alternator & Battery charger
T
o Speed sensor
To Model board

1-6. Display Board Indicator LEDs – C575R/U
1-6-1
Power

1-6.Drive Board Indicator LEDs – C575R/U
1-6-2
F1 Alternator fuse 3A
LED 5 COMM
Communication indicator
F3 battery charged fuse
2A
F2 Battery fuse
2A
LED 3 VBB
Lit = Vbb power indicator
LED 4 HTR (C575R)
Lit, HTR indicator
LED 1 CLK
Speed sensor indicator
LED 6 VCC power
Lit, Vcc power indicator
LED 2 Battery charge
Lit, Battery is being charged.
Program

Troubleshooting
TroubleshootingTroubleshooting
Troubleshooting
Model: C575U
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 LED3 and LED6 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
Alternator fuse 3A
Alternator
Display

Troubleshooting
TroubleshootingTroubleshooting
Troubleshooting
Model: C575U
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.
3-1-2
Drive
Board
Display
board
Battery
6V*2
F
use
LED 6 Vcc
Battery 6V
B
attery fuse 2A
L
ED 3 Vbb
B
attery 6V

Troubleshooting
TroubleshootingTroubleshooting
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. Speed sensor is malfunctioning.
Troubleshooting: 1. Make sure the distance between the optic sensor and the
reflective sticker is 3-8mm.
2. Make sure the sensor on the optic sensor board is clean.
3. Inspect the drive board.
4. Inspect all cable connections.
3-2-1
Drive
Board
Display
board
Sensor /
reflective
sticker
S
peed sensor
LED 1

故障排除
機 種 C575U
故障項目 無阻力
故障情形 踩踏機台,無任何阻力
可能原因 1.電子表無 RPM 信號
2.驅動板不良
故障排除 1.檢查驅動板 CLK 信號燈
2.檢查所有排線是否接好
3.檢查發電機電壓是否正常
4.量測阻力電壓輸出?或更換驅動板
5.檢查驅動板 LED3,LED4 電磁鐵接線是否正常
6.鑄鋼輪組單向軸承損壞
3-3-1
Drive
Board
Display
board
Speed
Sensor
Electronic
Magnet
Alternator
Speed sensor
Blue-blue
Level voltage（V）
LEVEL 1
1.9 V
LEVEL 10
11 V
LEVEL 40
17 V
Alternator
Electro
-
magnet

Troubleshooting
TroubleshootingTroubleshooting
Troubleshooting
Model: C575R
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.
3-3-2
Drive
Board
Display
board
Electronic
Magnet
Speed
sensor
Speed sensor
Blue-blue
Level voltage（V）
LEVEL 1 3 v
LEVEL 10 11 v
LEVEL 20 18 v
Alternator
Electronic-magnet

Troubleshooting
TroubleshootingTroubleshooting
Troubleshooting
Model: C575R
Malfunction: No telemetry heart rate reception.
Circumstance: I am wearing the heart rate telemetry strap properly.
But there is no heart rate reading.
Possible causes: 1. Telemetry strap transmitter battery voltage is
too low.
2. Heart rate telemetry receiver board is malfunctioning.
3. Environmental interference, for instance, from lights
or speakers, impedes signal reception.
Troubleshooting: 1. Replace the telemetry strap or its batteries.
2. Inspect the telemetry heart rate receiver board wire
connections.
3. Replace the heart rate receiver board.
3-4-1
Display
board
Transmitter
Polar
board
Polar board
Polar T34

Troubleshooting
TroubleshootingTroubleshooting
Troubleshooting
Model: C575R
Malfunction: Contact heart rate (HTR) malfunction.
Circumstance: Hold HTR contact plates; heart rate value is
incorrect.
Possible causes: 1. HTR wires are disconnected.
2. HTR board is defective.
Troubleshooting: 1. Inspect display wire connections.
2. Inspect the HTR wire on the drive board.
3. Inspect the HTR bridge board and HTR board
indicator LEDs.
4. Inspect the HTR contacts and their wire
connections.
3-4-2
Display
board
HTR board
Sensor-R
Sensor-L
HTR board indicator LEDs
LED Name Explanation
LED1 Telemetry Flashes to indicate incoming telemetry signal.
LED2 HTR contact
Lights to indicate hands on contact plates.
LED3 HTR output Flashes to indicate incoming HTR (contact)
signal.
LED4 Heart rate
signal output
Flashes to indicate heart rate signal output to
the display