Troubleshooting - Mcube CubeScan BioCon-500 Service Manual

Service Manual for BioCon-500

6. Troubleshooting

6.1 System is not turned on.
No.
Is POWER key pressed for more than 1
1
second?
2 Measure the voltage of battery module.
3 Is battery module connected?
Is the connector connected between the
4
Key Board and control board?
5 Not solved yet?
6.2 System is not turned off.
No.
Is POWER key pressed more than 1
1
second?
Is the system not turned off even when
2 pressing the Power key for more than 1
second?
6.3 Initial screen is not displayed when turning the system on.
No.
1 Is backlight on in LCD?
Is the FPC connector to the LCD module
2
well connected?
Check the voltage between the Control
3
board ground and 12
Check the voltage between the Control
4
board ground and 13
5 Is the system turned off?
6 The system is not turned off.
Mcube Technology Co., Ltd.
www.mcubetech.co.kr
TM
Check point
Check point
Check point
th
pin of JP5.
th
pin of JP5.
Description
The system operates when pressing
the POWER key for more than 1
second.
More than +7V
If not connected, connect the battery
module.
Connect the connector between two
boards.
Exchange the control boards
Description
The system operates when pressing
POWER key for more than 1 second.
Turn the power off by removing the
battery module from the system.
And exchange control boards.
Description
Check if the connector for backlight of
LCD is connected properly.
Check if the connector is connected
properly.
Check if -23V (+/-1V).
Check if -18V (+/-1V).
Try again after replacing the LCD
module.
Test again after replacing the Control
board.
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