LeCroy AP034 Instruction Manual page 4

Incorrect Frequency Response ........................................................................................ 5-2
DC Errors ......................................................................................................................... 5-3
Poor Common Mode Rejection....................................................................................... 5-3
Returning a Defective Probe ....................................................................................................... 5-4
Replacement Parts ...................................................................................................................... 5-5
Matching Procedure for ÷10 Plug-On External Attenuator .......................................................... 5-8
Equipment Required ..................................................................................................................... 5-8
Procedure...................................................................................................................................... 5-9
Performance Verification
Test Equipment Required ............................................................................................................. 6-1
Preliminary Procedure................................................................................................................... 6-3
Procedure...................................................................................................................................... 6-3
Check Gain Accuracy....................................................................................................... 6-4
Check High Frequency CMRR......................................................................................... 6-5
Check Low Frequency CMRR.......................................................................................... 6-8
Performance Verification Test Record ........................................................................................ 6-11
Adjustment Procedure
Introduction .................................................................................................................................. 7-1
Test Equipment Required ............................................................................................................. 7-2
Preliminary Procedure................................................................................................................... 7-4
Procedure...................................................................................................................................... 7-7
Adjust Coarse DC Balance (R226) .................................................................................. 7-7
Adjust Fine DC Balance (R304) ....................................................................................... 7-8
Adjust Low Frequency CMRR (R7).................................................................................. 7-9
Adjust Offset (R330) ...................................................................................................... 7-11
Adjust Gain (R322C) ...................................................................................................... 7-13
Adjust Final Attenuator Compensation (C17) ................................................................ 7-14
Adjust Final Attenuator CMRR (C18A)........................................................................... 7-15
Assemble Probe and Amplifier....................................................................................... 7-16
Attenuator Matching and Final Check ............................................................................ 7-17
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ISSUED: January 2000 AP034-OM-E Rev D