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V886 LCD Repair manual (Electronic)
Date: 2018/09/ V1.0
1-1.Product picture
1-1-1
1-2.Display Overlay-V886 LCD
1-2-1
1-3.Postion of the parts -
V886 Display
1-3-1
HTR board
Control board
LCD
Key board
USB board
Power keyboard
H
eadset board
1-3.Postion of the parts - V886
1-3-2
Drive board
Incline unit(Height)
Speed sensor
Battery fuse
Incline unit(length)
1-3.Postion of the parts - V886
1-3-3
Battery
Electro-magnet
Alternator
AV board
1-4. Block Diagram - V886 LCD
1-4-1
Control board
+
Drive Board
_
Electro-magnet
Speed sensor
HTR board
Fan
HRC board
Rocker board
Keypad
USB board
Battery
Alternator
Fuse
Display
Key board
HTR plate (L)
Power
key
Headset board
AV board
Switch
USB cable
HTR plate (L)
HTR plate (R)
HTR plate (R)
Length key(L)
Height key(R)
Incline unit(Length-L)
Incline unit (height-L)
Incline unit (height-R)
Charger
Battery
Incline unit(length-R)
1-4.
Wiring Schematic Diagram
- V886 LCD
1-4-2
1-5. Wiring connection - V886 Display
1-5-1
To Drive board
To HTR board
To LCD
To Key board
To Control board & AV board
To USB board
To soft keypad
To Drive
bo
ard
To Fan
To AV board
& headset board
To polar board
To Rocker board
To USB board
To
(Length & Height)
To Control board
To control board
To Control board
To HTR plate
1-5. Wiring connection - V886 Drive board
1-5-2
To
Incline uni
t (Height)
To charger
To Alternator,
Speed sensor
Electro
-
magnet
T
o
B
attery
To
Incline unit
(
Length)
To Power key & control board
To
USB
cable
1-5.Wring connection – V886 16” Resistance key
1-5-3
RESISTANCE key
To control board
Polar
board
Rocker
board
To control board
1-5. Wring connection –AV board
1-5-4
CSAFE
To headset board
To control board
AV board
1-6.Indicator led
-
V886 Drive board
1-6-1
LED15 CLK
-Speed sensor
LED2 –VCC
LED3 -12V
1-6.Indicator led
-
V886 Drive board
1-6-2
Incline motor (height)-R
LED7 R-UP (right side-up)
LED8 R-DN (right side-down)
Incline motor (height)-L
LED4 L-UP (left side-up)
LED
5
L
-
DN
(
left
side
-
down)
Incline motor (Length)-R
LED12 R-UP (right side-up)
LED13
R
-
DN (right side
-
down)
Incline motor (Length)-R
LED9 L-UP (left side-up)
LED
10
L
-
DN (left side
-
down)
LED 6
Incline power 22V
Troubleshooting
Model: V886
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 faulty.
3.Alternator
Troubleshooting: 1. Inspect wire and cable connections.
2.Inspect the alternator. Do LED2 and LED3
on the drive board light, while pedal.
3. Replace the drive board as a test.
4. Replace the control board.
3-1-1
Control board
Drive Board
Alternator
LED2 –VCC
LED3 -12V
Troubleshooting
Model: V886
Malfunction: Unit will not start (battery).
Circumstance: Press <Power>, the display shows no reaction.
Possible causes: 1. The battery fuse is burnt.
2. The battery faulty.
3. The battery charge function on drive board has failed.
Troubleshooting: 1. Inspect the cable connections.
2. Measure the battery voltage. Two batteries: 24V
3. Inspect battery fuse.
4. Or replace the drive board as a test.
5. Pedal at 50 RPM or higher to recharge the battery.
3-1-2
Control board
Battery
Drive Board
Fuse
Battery12V *2
Drive Board
Troubleshooting
Model : V886
Malfunction : Strides/min value =0
Circumstance : When using the machine,
the Display shows Strides/min value =0
Possible Causes: 1. Cable is not well-connected.
2. Speed sensor faulty.
3. Drive board faulty.
Troubleshooting : 1.Inspect the led 15 CLK(speed sensor) on the drive.
The distance between the speed sensor & reflective
Sticker is 5mm.
2. Clean the detector of the speed sensor,
3. Replace the Drive board and test again
4. One pedal per second, strides/min =60.
3-2-1
Display
board
Speed sensor /
Reflective sticker
Drive
Board
LED15 CLK
Speed sensor
Speed sensor
Troubleshooting
Model V886
Malfunction : No Resistance
Circumstance : When pedaling, there is no resistance.
Possible Causes: 1. Drive board faulty.
2.Control board faulty.
3.Alternator faulty.
Troubleshooting : 1.Inspect cables connection.
2.Inspect led 15 on the drive board (speed sensor).
2.Inspect alternator , Electro-magnet.
3.Replace the Drive Board and test again.
4.Repalce control board
3-3-1
Display
board
Alternator
Drive
Board
Electronic
Magnet
Speed
Sensor
Blue-blue
Level voltage(V) current(I)
Level 5 4.14V 0.23A
Level 20
7.56V 0.42A
Level 40
12.6V 0.71A
Drive board
Electronic Magnet
Alternator
speed sensor
Troubleshooting
Model V886
Malfunction : Malfunction of the Wireless Heart Rate Device
Circumstance : Malfunction of the Wireless Heart Rate Device
Possible Causes: 1.Polar heart-rate transmitter faulty.
2.The Polar board faulty.
3.Ambient interferences such as the light or the speaker
Troubleshooting 1.Replace polar transmitter or the battery
2.Check the polar board cable connection.
3.Replace the polar board.
3-4-1
Heart-rate
Receiver
Display board
Transmitter
Polar T34 transmitter
Polar board
Troubleshooting
Model C575R 16” , 19”
Malfunction: Malfunction of the HTR
Circumstance : Handheld HTR
Malfunction of the Heart Rate Display Device
Possible Causes: 1. Malfunction of the HTR Wiring
2.
Malfunction of the HTR board
Troubleshooting: 1. Check HTR wiring connection.
2. Check the HTR Wiring on the Driver Board
3. Check the signal lights on the HTR board
4. Check the HTR plate and Wiring
3-5-1
Control board
Display
HTR board
HTR plate (L)
HTR plate (L)
HTR plate (R)
HTR plate (R)
Signal Lights on the HTR Board
ID Name Details
LED1 POLAR Heart Rate
Light
The blinking light indicates input of the
POLAR heart rate signal.
LED2 Signal lights of the
handheld HTR
When you place your hands on HTR plat,
the light will be turned on.
LED3 HTR Heart Rate
Light
The blinking light indicates input of the
POLAR heart rate signal.
LED4 Heart Rate Output
Light
Each blink of the light indicates an output
from the heart rate device.
/
