Measure The Post Regulator Voltages - Agilent Technologies HP 8719D Service Manual

Check the Green LJZDs on A8
Remove the top cover of the analyzer and locate the A8 post regulator; use the
location diagram under the top cover if necessary. Check to see if the green
visible without removing the PC board stabilizer).
If all of the green LEDs on the top edge of A8 are on, there is a 95%
q
uncertainty of the power supply, refer to "Measure the Post Regulator
Voltages" (next).
If any LED on the A8 post regulator is off or flashing, refer to "If the Green
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Measure the Post Regulator Voltages

Measure the DC voltages on the test points of A8 with a voltmeter. Refer to
Figure 6-3. A8 Post Regdator 'Ilest Point Locations