Vision Fitness U70 Service Manual download pdf (Page 22)

CHAPTER 6: TROUBLESHOOTING

6.2 TROUBLESHOOTING - CONSOLE POWER ISSUES

NO DISPLAY ON THE CONSOLE OR THE DISPLAY IS DIM

POSSIBLE CAUSES:

1) The console is damaged or the console cable is not connected properly.

2) Poor connection to the terminals on the lower board.

3) The lower board is damaged.

4) The Generator is damaged.

SOLUTION

1) Check the console cable connections at the console and lower board.

2) Unplug the console cable at the console. Use a multi-meter to check if the voltage between the 1 (VCC) and 8 (Ground) pins of the console

cable is greater than 12 VDC (Figure A).

a. If the voltage is greater than 12 VDC, replace the console.

3) Open the side covers and check the lower board LEDs. If the +12V LED is not lit, replace the battery.

4) Unplug the generator cable from the lower board and check to see if the voltage is variable (See Section 6.2 for how to check the power).

a. If the voltage is variable, replace the lower board.

b. If the voltage is NOT variable, replace the generator.

FIGURE A

RDA

SDB

SDA

SDB

GND

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Vision Fitness U70 Service Manual Page 22