If The Test Set Fails To Power-Up - Agilent Technologies 8935 Series Manual

Troubleshooting
Self-Test Diagnostics (Step 1)

If the Test Set Fails to Power-up

1. Is the Test Set plugged in? Listen for fan operation. If you don't hear
it, check the line fuse
"Reset and GFI-Test Buttons (older units with GFI circuit)" on page
98.
Figure 3-3 Fuse
2. If there is no image on the display, remove the Test Set's covers and
check the power supply LEDs: +5V, 12V, +12V (see
one is out, the power supply or regulator board is faulty. If no LEDs
are lit, confirm that the Test Set is connected to the main power
source. (Also, see step 5.)
52
(Figure 3-3) and the GFI reset button, see
Line Fuse
(A3F1)
Spare Fuse
(A3F1)
fuse1.eps
Figure 3-4). If
Chapter 3