HP designjet l65500 Manuales De Servicio

178

Troubleshooting

To see these LEDs look between the 

covers of the OMAS and Vacuum 

controllers. No covers need to be 

removed.

The LEDs are numbered in the table 

from top to bottom. 

The following photo shows the location of the power LEDs. The 3.3V and 14V supplies are generated 

internally by the Carriage Interconnect Board from the 24V supply.

To see the LEDS, open the carriage lid and remove the carriage electronics cover  page 657.

LEDs

LED

State

 

1

5  volts

On  green

 

2

24  Volts

On  green

 

3

CAN

On faint 

green

3.3v to Primer assembly (DS1)

12v to Aerosol Fans (DS5)

24v to Main Power supply 

(DS4)

24v Power from Main 

Power Supply (DS2). ON if 

42v arrives to the board