HP 54520 Series Service Manual page 86

Chapter 5: Troubleshooting
To troubleshoot the instrument
G) FROM CHART 1
'
PRESS UTIL, SET AC BNC
1O PROBE COMP
ANU CHECK REAR PANEL AC
CALIBRAIOR SIGNAL
APPROXIMAIELY S@OHZ
= 408mV INTO 580
FS 80@mV INTO IMQ
YES
CHECK DC CALIBRATION
OUTPUL
DC CALIBRATOR TEST
(SEE CHAPTER 3)
REPAIR
Se
—w
I CABLE
| chLCK
ope ne
Pi caste =
| RePair
CABLE
CHECK
CABLE
SIGNAL NO
NO
REPLACE
MAIN ASSEMBLY
A
yes
$f
APPROXIMATELY
1@ MHZ?
| YES
GO TO CHART 3
Trouble Isolation Chart for Cal signals
34542877
GO 70
CHART
1
5-8