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X

 Service Manual

Part 

C

. Trouble shooting

Problem #1: 

Can’t turn on machine (Power indicator always stay on red) 

Problem #2: Dim screen (After turn on, the display get

s an 

image but 

it 

is very faint 

and 

hard to see)

 

Problem #3: 

Android can’t pick up the OPS signal 

Problem #4: No power (Power indicator is blank

, neither green or red

)

Problem #5: Partial touch or dead touch area 

Problem #6: No touch 

Problem #7: Ghost touch or the calibration is inaccurate 

Problem #8: No image (Black screen) even no faint display 

Problem #

9

: Noise

 in the

 image or color distortion

Problem #1

0

: Flicker

ing

 screen

Problem #1

1

: Stuck on splash logo

, can’t enter 

Home Screen

Problem #1

2

: Broken sound or sound popping

Problem #1

3

: No audio output from OPS

Problem #1

4

: No signal from all HDMI input

s

Problem #1

5

: Wifi 

module not working, can’t detect wifi signal

Problem #

16

: Front HDMI not working

Summary of Contents for TRUTOUCH VN Series

Page 1: ...X Series Service Manual...

Page 2: ...is essential that all components be replaced with authorized components recommended in this manual to prevent shock fire or any other hazards 3 Please do not modify the original mechanical or electri...

Page 3: ...art A PCBA Overviews OPS Dock board Mainboard Power board TempSensor T con board Audio board Wifi module Front port board Keypad board Power_IR board AC board TP control board R Micphone L Micphone To...

Page 4: ...1 Mainboard wiring AC board Front port board FF control board Powerboard T Con board T Con board Front port board Power_IR board 5 6SHDNHU OPS docking board Audio board OPS docking board Top Bottom C...

Page 5: ...X Series Manual...

Page 6: ...X Series Manual 2 Powerboard wiring 3 Audio board wiring OC panel OPS docking board FF control board Mainboard AC switch board Mainboard Mic R...

Page 7: ...X Series Manual 4 OPS docking board wiring 5 Wifi module wiring Mainboard Mainboard Powreboard Mainboard Antenna...

Page 8: ...wiring Tips 1 After March 2018 there is no longer a Hard Reset button in the AC switch board 7 Front port board wiring 8 Keypad PCBA connections Powerboard Mainboard TempSensor pcb Hard Reset button M...

Page 9: ...X Series Manual 9 Power_IR board wiring 10 TempSensor PCBA wiring AC switch board Keypad board Mainboard...

Page 10: ...X Series Manual 11 FlatFrog Touch Panel Control board wiring 12 T CON board wiring Powerboard Mainboard Mainboard TP PCBA TP PCBA Mainboard Mainboard...

Page 11: ...X Series Manual...

Page 12: ...X Series Manual 13 Micphone pcba L R wiring 14 Camera module wiring Mainboard L Microphone Mainboard R Microphone...

Page 13: ...X Series Manual...

Page 14: ...e files to the root folder of the USB drive as shown in the following images Step 2 Turn off the display and connect the USB drive to the below front USB port Step 3 Turn on the display and the firmwa...

Page 15: ...X Series Manual Step 5 On the first boot up after the firmware upgrade it will stay on the X Series splash logo for about 3 minutes Step 6 Go to settings menu to check the firmware version is correct...

Page 16: ...Problem 5 Partial touch or dead touch area Problem 6 No touch Problem 7 Ghost touch or the calibration is inaccurate Problem 8 No image Black screen even no faint display Problem 9 Noise in the image...

Page 17: ...nk even no red colour Step 1 Replace the Powerboard Step 2 Replace the AC relay control board Step 3 Replace the Mainboard Problem 5 Partial touch or dead touch area Step 1 Refer to Part B to test the...

Page 18: ...nto homepage Step 1 Reload FW for mainboard Step 2 If it does not work replace Mainboard Problem 12 Broken sound or sound popping Step 1 It should be a speaker issue replace the speaker Problem 13 No...

Page 19: ...XN Service Manual Thank you for reading For more info please contact the manufacturer or authorized agent...

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