Fluke 190-104 - Page 4

Fluke 190-104/190-204
Service Manual
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4.6.14 Input C AC Voltage Accuracy (HF) & Bandwidth Test .................... 4-26
4.6.15 Input D Trigger Sensitivity Test......................................................... 4-27
4.6.16 Input D AC Voltage Accuracy (HF) & Bandwidth Test .................... 4-28
4.6.17 Video test using the Video Pattern Generator .................................... 4-29
4.6.18 Video test using SC600 Scope Calibration Option ............................ 4-31
4.7 Probe Calibration Generator Test ................................................................ 4-33
5 Calibration Adjustment ....................................................................... 5-1
5.1 General......................................................................................................... 5-3
5.1.1 Introduction .......................................................................................... 5-3
5.1.2 Calibration number and date................................................................. 5-3
5.1.3 General Instructions.............................................................................. 5-3
5.1.4 Equipment Required For Calibration ................................................... 5-4
5.2 Calibration Procedure Steps......................................................................... 5-4
5.3 Starting the Calibration................................................................................ 5-4
5.4 Contrast Calibration Adjustment ................................................................. 5-6
5.5 Warming Up & Pre-Calibration................................................................... 5-7
5.6 Final Calibration .......................................................................................... 5-8
5.6.1 Warm Up Final and ADC Timing ........................................................ 5-8
5.6.2 Input A LF-HF Gain............................................................................. 5-9
5.6.3 Input B LF-HF Gain ............................................................................. 5-10
5.6.4 Input C LF-HF Gain ............................................................................. 5-11
5.6.5 Input D LF-HF Gain............................................................................. 5-12
5.6.6 Input ABCD LF-HF Gain..................................................................... 5-13
5.6.7 Input ABCD Position .......................................................................... 5-15
5.6.8 Input ABCD Volt Gain......................................................................... 5-15
5.6.9 Input ABCD Zero ................................................................................. 5-17
5.7 Save Calibration Data and Exit.................................................................... 5-17
5.8 Probe Calibration ......................................................................................... 5-19
6 Disassembling the Test Tool.............................................................. 6-1
6.1. Introduction................................................................................................. 6-3
6.2. Disassembly & Reassembly Procedures ..................................................... 6-3
6.2.1 Required Tools ..................................................................................... 6-3
6.2.2 Removing the Tilt Stand, Hang Strap, and Side Strap ......................... 6-3
6.2.3 Opening the Test Tool, Removing the Battery Pack ............................ 6-4
6.2.4 Getting access to Top Side of PCA ...................................................... 6-4
6.2.5 Getting access to Bottom Side of PCA................................................. 6-5
6.2.6 Getting access to LCD, Keypad Foil and Keypad................................ 6-5
6.2.7 Pictures Showing Disassembly Steps ................................................... 6-6