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F-33TROUBLESHOOTING AND REPAIRF-33

USB INTERFACE MODULE TEST PROCEDURE (continued)

FIGURE F.10 – USB INTERFACE MODULE GREEN LED (REAR)

INTERFACE MODULE (USB)

 

INTERFACE

GREEN

MODULE

DIGITAL I/O

LED

 

I/O LINE PULL

 

 

HIGH

LOW

-

+

 

 

12VDC

, 1A

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7.Check to make sure the green LED on the back of the USB Interface Module is lit. See Figure F.10.

8.If the green LED is lit, check for the presence of 5VDC at leads 201(-) to 202(+). See wiring dia- gram.

9.If the green LED is lit and the 5VDC at leads 201(-) to 202(+) is present, the USB Interface Module is functioning properly.

10.If the green LED is not lit, check the USB con- nection between the CPU and the USB Interface Module. Try connecting a new USB cable to a different available port on the CPU. See wiring diagram.

11. If the LED is not lit and the USB connection is good, the USB Interface Module may be faulty. Perform the USB Interface Module Removal

12.

and Replacement Procedure.

Perform

the

Case Cover Replacement

13.

rocedure.

 

 

Perform

the

Monitor

and Pedestal

 

Replacement Procedure.

 

VRTEX TM 360

Page 90
Image 90
Lincoln Electric SVM200-A service manual 33TROUBLESHOOTING and REPAIRF-33, Figure F.10 USB Interface Module Green LED Rear