To Troubleshoot The Instrument - HP 54520 Series Service Manual

Chapter 5: Troubleshooting
To troubleshoot the instrument
START ose
APPLY POWER
1s
NO GO TO
FONCS CHART 2
YES
IS CRT
MONITOR WORKING
CORRECTLY?
GO TO
CHART 3
FROM
CHART 6A
DOES
KEYBOARD
WORK?
ATTEN. PASS REPLACE
SIGNAL TEST? MAIN ASSEMBLY
LOAD DEFAULT CAL
(SEE CHAPTER 4)
PERFORM SELFTESTS
(SEE CHAPTER 5)
NO OR
DON'T KNOW
GO TO
CHART 6A
REAR
PANEL CALIBRATION
SIGNALS OK?
FROM GO TO
CHART 5
CHART 5
DON'T KNOW
FROM
CHART 6B
DO ATTEN.
GO TO
PASS CLICK TEST?
CHART 6B
DON'T KNOW
PERFORM
MAIN ASSEMBLY ADJUSTMENTS
(SEE CHAPTER 4)
PERFORM
HIGH FREQ PULSE ADJ
FOR EACH ATTENUATOR
REPLACED (SEE CHAPTER 4)
REPLACED
1 OR MORE
ATTENUATORS
ee
PERFORM FIRMWARE CAL (SEE CHAPTER 4)
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Primary Trouble fsolation Flowchart
5-4