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General| True RMS | No |
|---|---|
| Max Voltage DC | 1000V |
| Max Current AC | 10A |
| Max Current DC | 10A |
| Continuity Check | Yes |
| Diode Test | Yes |
| Battery Type | 9V |
Explains the manual's purpose, scope, and service procedures.
Lists technical parameters, operating ranges, and accuracy for the multimeter.
Presents a high-level overview of the instrument's architecture and key blocks.
Details the function and operation of various circuit blocks within the multimeter.
Details the analog functions performed by the main integrated circuit (U4).
Details the role of the internal microprocessor in controlling instrument functions.
Explains the analog-to-digital conversion process and circuitry.
Details the internal power supply circuitry and voltage regulation.
Explains how the LCD display is controlled and driven.
Describes how to test the integrity of the meter's internal fuses.
Procedure for replacing blown fuses with exact replacements.
Outlines tests to verify the instrument's operational specifications.
Steps for calibrating the meter to ensure it meets specifications.
General guidance and procedures for diagnosing and isolating meter problems.
Specific troubleshooting steps for the instrument's power supply circuits.
Detailed troubleshooting procedures for the common (shunt) regulator circuit.
Detailed troubleshooting procedures for the Vdd (series) regulator circuit.
Provides the schematic diagram for the main printed circuit assembly (PCA).
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