To Check The 6000A Series Display; To Check The 6000L Series Display Output; Table 14 Display Signals On The System Board - Agilent Technologies 6000 Series Service Manual

To check the 6000A Series display

To check the 6000L Series display output

6000 Series Oscilloscopes Service Guide
6 If all cables are properly connected and none of the previous
tests confirm a failure on another assembly, replace the
system board.
1 Disconnect the power cord.
2 Check to verify that the backlight inverter cable is connected.
3 Ensure the display LCD cable is connected.
4 Connect the power cord.
5 Use the DMM to check the Inverter Power voltage (see table
below).
6 If the voltage is incorrect, replace the system board.
7 If the voltage is correct, use an oscilloscope to check the LCD
clock (see table below).
Table 14 Display Signals on the System Board
Signal
J2750 Pin 3 or 4
Inverter Power
J2730 Pin 6 and 7
Video Signal
8 If the clock signal is good, replace the LCD.
9 If the clock signal is absent, replace the system board.
1 Connect a known good external XGA display and power-up
the display and the oscilloscope.
2 If the known good display does show an output from the XGA
port of the oscilloscope, replace the system board.
Troubleshooting
Normal/Typical Result
5 V
480 MHz clock
4
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